Leases [Text Block] | Leases Lessor Tenant Leases The following table is a summary of the rental cash payments owed to the Company, as a lessor, by tenants pursuant to contractual agreements in effect as of September 30, 2019 . Generally, the Company's leases with its tenants provide for (1) annual escalations, (2) multiple renewal periods at the tenant's option and (3) only limited termination rights at the applicable tenant's option through the current term. The tenants' rental payments included in the table below are through the current terms with a maximum current term of 20 years and do not assume exercise of tenant renewal options. Three Months Ending December 31, Years Ending December 31, 2019 2020 2021 2022 2023 Thereafter Total Tenant leases (a) $ 166,906 $ 675,608 $ 672,744 $ 658,638 $ 515,992 $ 1,810,523 $ 4,500,411 (a) Inclusive of leases with related parties. See note 4. Lessee Operating Leases The components of the Company's lease expense is as follows: Three Months Ended Nine Months Ended September 30, 2019 September 30, 2019 Lease cost (a) : Operating lease expense (b) 30,826 90,027 Variable lease expense (c) 8,458 27,080 Total lease expense $ 39,284 $ 117,107 (a) Inclusive of leases with related parties. See note 4. (b) Represents the Company's operating lease expense related to its ROU assets for both the three and nine months ended September 30, 2019 . (c) Represents the Company's contingent payments for operating leases (such as payments based on revenues derived from the communications infrastructure located on the leased asset) for both the three and nine months ended September 30, 2019 . Such contingencies are recognized as expense in the period they are resolved. Lessee Finance Leases The Company's finance leases are related to the towers subject to prepaid master lease agreements with Sprint and are recorded as "Property and equipment, net" on the condensed consolidated balance sheet. See note 1 for further discussion of the Company's prepaid master lease agreements and note 2 for further information regarding the Company's adoption method of the new lease standard. Finance leases and associated leasehold improvements related to gross property and equipment and accumulated depreciation were $979 million and $635 million , respectively, as of September 30, 2019 . For the three and nine months ended September 30, 2019 , the Company recorded $10 million and $31 million to "Depreciation, amortization and accretion" related to finance leases, respectively. Other Lessee Information As of September 30, 2019 , the Company's weighted-average remaining lease term and weighted-average discount rate for operating leases were 16 years and 4.4% , respectively. The following table is a summary of the Company's maturities of operating lease liabilities as of September 30, 2019 : Three months ending December 31, Years ending December 31, 2019 2020 2021 2022 2023 Thereafter Total undiscounted lease payments Less: Imputed interest Total operating lease liabilities Operating leases (a)(b) $ 25,842 $ 107,212 $ 107,256 $ 106,786 $ 106,235 $ 1,252,978 $ 1,706,309 $ (505,011 ) $ 1,201,298 (a) Excludes the Company's contingent payments for operating leases (such as payments based on revenues derived from the communications infrastructure located on the leased asset) as such arrangements are excluded from the Company's operating lease liability. Such contingencies are recognized as expense in the period they are resolved. (b) Inclusive of leases with related parties. See note 4. Comparative Information from 2018 Form 10-K The Company adopted ASC 842 using a modified retrospective approach as of the effective date, without adjusting the comparative periods, and therefore, as required by ASC 842, has included the following comparative information from note 10 to the consolidated financial statements in its 2018 Form 10-K. The operating lease payments included in the table below include payments for certain renewal periods at the Company's option that are deemed reasonably assured to be exercised and an estimate of contingent payments based on revenues and gross margins derived from existing tenant leases. Years ending December 31, 2019 2020 2021 2022 2023 Thereafter Total Operating leases (a) $ 142,671 $ 144,069 $ 144,390 $ 142,144 $ 140,193 $ 1,697,442 $ 2,410,909 (a) Inclusive of leases with related parties. See note 4. |