Income Taxes - Income Tax Expense (Benefit) from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current
Federal	$ 7,270	$ 9,694	$ 6,304
Foreign	497	1,218	1,821
State and local	2,123	1,575	2,402
Current Income Tax Expense (Benefit)	9,890	12,487	10,527
Deferred
Federal	(447)	(7,910)	(4,394)
Foreign	(538)	(718)	(883)
State and local	63	(822)	(386)
Deferred Income Tax Expense (Benefit)	$ (922)	$ (9,450)	$ (5,663)