Income Taxes - Domestic and Foreign (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Domestic	$ (32,216)	$ (37,277)	$ 21,084
Foreign	18,985	39,470	28,435
INCOME (LOSS) BEFORE INCOME TAXES	$ (13,231)	$ 2,193	$ 49,519