Exit and Realignment Costs - Accrual for Exit and Realignment Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
Restructuring Reserve [Roll Forward]
Accrued exit and realignment costs, beginning of period	$ 4,192	$ 8,162	$ 5,975	$ 7,477
Cash payments	(2,072)	(5,799)	(2,301)	(2,206)
Accrued exit and realignment costs, end of period	4,320	4,192	5,391	5,975
Severance
Restructuring Reserve [Roll Forward]
Provision for exit and realignment activities:	809	1,391	1,008	360
Information system restructuring costs
Restructuring Reserve [Roll Forward]
Provision for exit and realignment activities:	671	183	705	261
Other
Restructuring Reserve [Roll Forward]
Provision for exit and realignment activities:	$ 720	$ 255	$ 4	$ 83