Income Taxes - Income Tax Expense Reconciliation Between U.S. Statutory Tax Rate and Effective Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income from continuing operations, before tax	$ (734,015)	$ 15,571	$ 11,124
Income tax at U.S. statutory federal rate	(154,143)	3,270	2,336
Increases (decreases) resulting from:
State taxes, net of federal benefit	(3,452)	407	(655)
Benefit of REIT status	129,742	(2,188)	(5,687)
Goodwill impairment	14,910
Return to accrual	(2,795)	104	(26)
Permanent differences	448	122	41
Foreign taxes	87	2,948	(111)
Rate differential			(1,319)
Total income tax (benefit) expense	$ (15,203)	$ 4,663	$ (5,421)

Income tax reconciliation return to accrual.

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Income tax reconciliation tax exempt income (expense).

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The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit).

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