Acquisition of Business (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
REVENUES	$ 1,734,282	$ 1,570,575	$ 1,452,183
Goodwill	395,974	395,974	395,974
Business Combination, Acquisition Related Costs	0	0	$ 373
Long-term Debt	1,299,363	1,479,077
Revolving Credit Facility [Member]
Business Acquisition [Line Items]
Long-term Debt	$ 360,000	$ 140,000