Goodwill and Other Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 144,330		$ 144,330		$ 144,656
Accumulated Amortization	(72,094)		(72,094)		(65,535)
Net Amount	72,236		72,236		79,121
Amortization expense	2,348	$ 2,253	7,065	$ 6,816
Customer Lists/Relationships
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	96,889		96,889		97,355
Accumulated Amortization	(47,790)		(47,790)		(44,002)
Net Amount	49,099		49,099		53,353
Technology and Other Intangibles
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	47,441		47,441		47,301
Accumulated Amortization	(24,304)		(24,304)		(21,533)
Net Amount	$ 23,137		$ 23,137		$ 25,768