Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Intangible Assets, Net [Abstract]
Gross Carrying Amount	$ 137,567	$ 123,740
Accumulated Amortization	(56,290)	(60,169)
Net Carrying Amount	81,277	63,571
Customer Relationships [Member]
Intangible Assets, Net [Abstract]
Gross Carrying Amount	125,433	97,497
Accumulated Amortization	(51,253)	(44,185)
Net Carrying Amount	74,180	53,312
Noncompete Agreements [Member]
Intangible Assets, Net [Abstract]
Gross Carrying Amount	1,444	1,479
Accumulated Amortization	(736)	(831)
Net Carrying Amount	708	648
Customer Backlog [Member]
Intangible Assets, Net [Abstract]
Gross Carrying Amount	3,025	10,353
Accumulated Amortization	(741)	(5,941)
Net Carrying Amount	2,284	4,412
Trade Names [Member]
Intangible Assets, Net [Abstract]
Gross Carrying Amount	683	449
Accumulated Amortization	(155)	(281)
Net Carrying Amount	528	168
Software Development [Member]
Intangible Assets, Net [Abstract]
Gross Carrying Amount	6,982	13,962
Accumulated Amortization	(3,405)	(8,931)
Net Carrying Amount	$ 3,577	$ 5,031