Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Comprehensive Income Loss Tax Parenthetical Disclosures [Abstract]
Foreign currency translation adjustments, tax expense (benefit)	$ 4,254	$ 25,731	$ (13,364)
Reclassification Adjustment from foreign currency realized losses, tax		$ (145)