Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($) |
Sep. 30, 2020 |
Dec. 31, 2019 |
|---|---|---|
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||
| Finance Lease, Right-of-Use Asset, after Accumulated Amortization | $ 39,463,000 | $ 34,691,000 |
| Finance Lease, Liability | 42,956,000 | |
| Intangible assets | 64,300,000 | 64,300,000 |
| Right-of-use asset | $ 337,774,000 | $ 337,842,000 |
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after accumulated amortization, of right-of-use asset from finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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