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Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended | 32 Months Ended |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2018 | Feb. 01, 2018
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Amortization expense | $ 24,600 | $ 27,500 | $ 34,900 |  |
Waived management fees, included in affiliate contract expanse accumulated amortization | 37,800 | 36,100 | $ 24,600 | $ 98,400 |
Unfavorable leases, wireless segment | 301,554 | 316,504 |  | 301,554 | $ 52,000
Net carrying value, intangible assets | 301,554 | $ 316,504 |  | 301,554 | 52,000
Additional waived management fee under Affiliate Agreement | 157,200 |  |  |  |
Unfavorable lease liability, classified as rent expense | 21,094 |  |  | 21,094 |
Off-market leases - unfavorable |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Unfavorable leases, wireless segment |  |  |  |  | 3,310
Net carrying value, intangible assets |  |  |  |  | $ 3,310
Unfavorable lease liability, classified as rent expense | $ 5,100 |  |  | $ 5,100 |

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- Definition Additional Waiver of Management Fee Under Affiliate Agreement + References No definition available. + Details
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- Definition Waived Management Fees Under Affiliate Agreement + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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