Supplemental Financial Information - Activity in Allowance For Doubtful Accounts (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jan. 01, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 23,777	$ 16,604
Credit losses	4,393	18,862
Foreign currency translation	(1,211)	173
Balance at end of period	16,413	$ 25,586
Other current assets, net
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	0
Credit losses	1,595
Foreign currency translation	152
Balance at end of period	1,747
Other noncurrent assets, net
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	0
Credit losses	13,378
Foreign currency translation	(572)
Balance at end of period	$ 12,806
Accounting Standards Update 2016-13
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Other current assets and other non-current assets			$ 13,400