CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Property, building and equipment, accumulated depreciation	$ 98,394	$ 82,721
Intangible assets, accumulated amortization	$ 19,152	$ 17,659
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	60,000,000	60,000,000
Common stock, shares, issued (in shares)	36,549,524	36,355,497
Common stock, shares outstanding (in shares)	30,634,414	31,139,840
Treasury shares (in shares)	5,915,110	5,215,657