CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Trade accounts receivable, allowances	$ 4,735	$ 6,439
Preferred Stock, par value (in dollars per share)	$ 0
Preferred Stock, authorized shares (in shares)	15,000,000	15,000,000
Preferred Stock, outstanding (in shares)		0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares (in shares)	240,000,000	240,000,000
Common stock, issued (in shares)	89,600,000	89,251,000
Treasury stock, at cost; shares (in shares)	4,899,000	4,914,000