Debt - Notes - Summary of Debt Extinguishment Costs on Notes Recorded as Additional Interest Expense (Details) - Notes [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Extinguishment Of Debt [Line Items]
Prepayment premiums/penalties	$ 25,823	$ 10,266
Write-offs of unamortized deferred financing costs	571	287
Write-offs of unamortized (premiums)/discounts/OCI	12,698	1,043
Total	$ 39,092	$ 11,596