Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Credit Loss [Line Items]
Cumulative effect of change in accounting principle	$ (757,051)		$ (965,819)	$ (1,387,588)	$ (1,434,866)
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts receivable, allowance for credit loss, beginning balance	2,569
Incease to allowance for doubtful accounts	2,282
Recoveries collected	(637)
Write-offs	(114)
Currency impact	39
Accounts receivable, allowance for credit loss, ending balance	5,150
Revision of Prior Period, Accounting Standards Update, Adjustment
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts receivable, allowance for credit loss, beginning balance	1,011
Cumulative Effect, Period of Adoption, Adjustment
Credit Loss [Line Items]
Cumulative effect of change in accounting principle			2,916	29,041
Retained Earnings
Credit Loss [Line Items]
Cumulative effect of change in accounting principle	$ (450,876)		(518,004)	(922,000)	$ (833,610)
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment
Credit Loss [Line Items]
Cumulative effect of change in accounting principle		$ 2,900	$ 2,916	$ 29,041
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment | Continuing Operations
Credit Loss [Line Items]
Cumulative effect of change in accounting principle		1,000
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment | Discontinued Operations
Credit Loss [Line Items]
Cumulative effect of change in accounting principle		$ 1,900