Accounting Policies [Abstract] Deferred Finance Costs, Net Debt Issuance Costs, Net Statement of Cash Flows [Abstract] Statement [Table] Statement [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Statement [Line Items] Statement [Line Items] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation, amortization and accretion Depreciation, Amortization and Accretion, Net Amortization of deferred financing costs Amortization of Debt Issuance Costs Asset write-down charges Asset Impairment Charges Gain (Loss) on Extinguishment of Debt Gain (Loss) on Extinguishment of Debt Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Increase (decrease) in accrued interest Increase (Decrease) in Interest Payable, Net Increase (decrease) in accounts payable Increase (Decrease) in Accounts Payable, Trade Increase (decrease) in deferred revenues, deferred ground lease payable and other liabilities Increase (Decrease) in Other Operating Liabilities Decrease (increase) in receivables Increase (Decrease) in Receivables Decrease (increase) in other current assets, deferred site rental receivable, long-term prepaid rent and other assets Increase (Decrease) in Other Operating Assets Net cash provided by (used for) operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Capital expenditures Payments to Acquire Productive Assets Net cash provided by (used for) investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Repayments of Other Long-term Debt Repayments of Other Long-term Debt Distributions to Member Increase (Decrease) Due from Affiliates Net cash provided by (used for) financing activities Net Cash Provided by (Used in) Financing Activities Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Cash and cash equivalents Receivables, net Accounts Receivable, Net, Current Prepaid expenses Prepaid Expense, Current Deferred site rental receivables and other current assets Deferred Site Rental Receivables and Other Current Assets For a classified balance sheet, the cumulative difference between the rental income or payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, one year or less after the balance sheet date. Such receivable is reduced by allowances attributable to, for instance, credit risk associated with a lessee. Also includes the aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer). Total current assets Assets, Current Deferred site rental receivables Deferred Rent Receivables, Net, Noncurrent Property and equipment, net of accumulated depreciation of $989,180 and $919,546, respectively Property, Plant and Equipment, Net Goodwill Goodwill Other intangible assets, net Intangible Assets, Net (Excluding Goodwill) Long-term prepaid rent and other assets, net Other Assets, Noncurrent Total assets Assets LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Accrued expenses and payables Accounts Payable, Current Accrued interest Interest Payable, Current Deferred revenues Deferred Revenue, Current Other accrued liabilities Accrued Liabilities, Current Total current liabilities Liabilities, Current Debt Long-term Debt and Capital Lease Obligations Deferred Ground Lease Payable Deferred Ground Lease Payable Deferred Ground Lease Payable Above Market Leases and Other Liabilities Above Market Leases and Other Liabilities Above market leases for land interests under the Company's towers and the aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Total liabilities Liabilities Member's equity: Stockholders' Equity Attributable to Parent [Abstract] Member's equity Members' Capital Accumulated earnings (deficit) Retained Earnings (Accumulated Deficit) Total member's equity Members' Equity Total liabilities and equity Liabilities and Equity Commitments and Contingencies Disclosure [Abstract] Contractual Terms [Table] Contractual Terms [Table] Contractual Terms [Table] Contractual Terms [Axis] Contractual Terms [Axis] Contractual Terms [Axis] Contractual Terms [Domain] Contractual Terms [Domain] [Domain] for Contractual Terms [Axis] Leased or Operated Under Sprint Master Lease Agreements [Member] Leased or Operated Under Master Lease Agreements [Member] Leased or Operated Under Master Lease Agreements [Member] Contractual Terms [Line Items] Contractual Terms [Line Items] [Line Items] for Contractual Terms [Table] Purchase Option, Percentage of Towers Tower Count Percentage Represents the Company's tower count as a percentage of total towers. Inclusive of towers and other structures, such as rooftops. Supplemental Cash Flow Elements [Abstract] Supplemental Cash Flow Information [Table] Supplemental Cash Flow Information [Table] Supplemental Cash Flow Information [Table] Supplemental Cash Flow Information [Line Items] Supplemental Cash Flow Information [Line Items] Supplemental Cash Flow Information [Line Items] Interest Paid Interest Paid, Including Capitalized Interest, Operating and Investing Activities Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Debt and Other Obligations [Abstract] Debt and Other Obligations [Abstract} Schedule of Extinguishment of Debt [Table] Schedule of Extinguishment of Debt [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] September 2016 Senior Unsecured Notes [Member] September 2016 Senior Unsecured Notes [Member] September 2016 Senior Unsecured Notes [Member] Extinguishment of Debt [Line Items] Extinguishment of Debt [Line Items] Debt and Other Obligations Debt and Capital Leases Disclosures [Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] 2012 secured notes tranche B [Member] 2012 secured notes tranche B [Member] 2012 secured notes tranche B [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Total debt and other obligations Debt and Capital Lease Obligations Stated interest rate Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Maturity Date Debt Instrument, Maturity Date Debt Instrument, Face Amount Debt Instrument, Face Amount Fair Value Disclosures [Abstract] Estimated Fair Values and Carrying Amounts of Assets and Liabilities Fair Value, by Balance Sheet Grouping [Table Text Block] New accounting prounouncements New Accounting Pronouncements, Policy [Policy Text Block] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Income Statement [Abstract] Income Statement [Abstract] Site rental revenues Operating Leases, Income Statement, Lease Revenue Operating expenses: Operating Expenses [Abstract] Site rental cost of operations—third parties Direct Costs of Leased and Rented Property or Equipment, Third Party Costs incurred with third parties that are directly related to generating revenues from leased and rented property or equipment. Site rental cost of operations—related parties Direct Costs of Leased and Rented Property or Equipment, Related Party Costs incurred with related parties that are directly related to generating revenues from leased and rented property or equipment. Site rental cost of operations—total Direct Costs of Leased and Rented Property or Equipment Management fee—related party Management Fee Expense Related Party Amount of expenses charged by affiliate related to the management services to maintain, market, operate, manage and administer the towers. Total operating expenses Costs and Expenses Operating income (loss) Operating Income (Loss) Interest expense and amortization of deferred financing costs Interest expense and amortization of deferred financing costs The cost of borrowed funds and the amortization of interest rate swaps accounted for as interest that was charged against earnings during the period. Other income (expense) Other Nonoperating Income (Expense) Income (loss) before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Benefit (provision) for income taxes Income Tax Expense (Benefit) Net income (loss) Extinguishment of Debt [Axis] Extinguishment of Debt [Axis] Extinguishment of Debt, Type [Domain] Extinguishment of Debt, Type [Domain] Schedule of Extinguishment of Debt [Table Text Block] Schedule of Extinguishment of Debt [Table Text Block] Components of Interest Expense and Amortization of Deferred Financing Costs Schedule Of Interest Expense And Amortization Of Deferred Financing Costs [Text Block] Schedule of interest expense and amortization of deferred financing costs. Organization, Consolidation and Presentation of Financial Statements [Abstract] General Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Document and Entity Information Document and Entity Information [Abstract] Entities [Table] Entities [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Entity Information [Line Items] Entity Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Current Reporting Status Entity Current Reporting Status Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Cash and Cash Equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents, carrying value Cash and cash equivalents, fair value Cash and Cash Equivalents, Fair Value Disclosure Debt and other obligations, carrying amount Debt and other obligations, fair value Debt And Capital Lease Obligations Fair Value Disclosures Sum of the fair values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Accumulated Depreciation [Abstract] Accumulated Depreciation [Abstract] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Guarantees [Abstract] Guarantor Subsidiaries Guarantees [Text Block] Interest expense on debt obligations Interest Expense, Debt Amortization of deferred financing costs Total Related Party Transactions [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Net Equity contribution (distribution) from parent [Member] Net Equity contribution from parent [Member] Net Equity contribution from parent Accumulated Earnings (Deficit) [Member] Retained Earnings [Member] Members' Equity [Member] Members' Capital [Member] Members' Capital [Member] Affiliated Entity [Member] Affiliated Entity [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Property Management Fee, Percent Fee Property Management Fee, Percent Fee Related Party Transaction, Percentage of Towers Where Land is Owned by Related Party Related Party Transaction, Percentage of Towers Where Land is Owned by Related Party Related Party Transaction, Percentage of Towers Where Land is Owned by Related Party Related Party Transactions Related Party Transactions Disclosure [Text Block] Retirement of Long Term Obligations [Abstract] Retirement of Long Term Obligations [Abstract] Purchase Options, Land Purchase Option, Sprint Sites Represents the Company's purchase option for Sprint sites. Inclusive of towers and other structures, such as rooftops. Fair Value Disclosures Fair Value Disclosures [Text Block] Supplemental Cash Flow Information [Abstract] Cash Flow, Supplemental Disclosures [Text Block] Cash Flow, Supplemental Disclosures [Text Block] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Statement of Stockholders' Equity [Abstract] Member Equity [Axis] Members' Equity Total [Domain] Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance, beginning Net income (loss) Balance, ending Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block]