Reconciliation of Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net income	$ 171,474	$ 73,559	$ 107,171
Weighted average shares outstanding - basic	33,434	33,180	33,284
Dilutive effect of restricted stock	458	363	196
Weighted average shares outstanding - diluted	33,892	33,543	33,480
Earnings per share from continuing operations
Basic	$ 5.13	$ 2.22	$ 3.22
Diluted	5.06	2.19	3.20
Earnings per share net income
Basic	5.13	2.22	3.22
Diluted	$ 5.06	$ 2.19	$ 3.20