Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net income	$ 254,860	$ 240,755	$ 85,066
Other comprehensive (loss) income, net of tax
Foreign currency translation adjustments	(3,692)	(10,183)	29,294
Reclassification of cumulative translation adjustment associated with liquidated and planned sale of subsidiaries	0	0	1,702
Pension liability adjustments, net of income tax benefit of $(10), $(13), and $(26) for year ended December 31, 2019, 2018, and 2017	69	59	(232)
Other comprehensive (loss) income	(3,623)	(10,124)	30,764
Comprehensive income	$ 251,237	$ 230,631	$ 115,830