Earnings (Loss) Per Share - Calculations of Earnings (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Basic earnings (loss) per Common Share:
Income from continuing operations, net of tax	$ 10,925	$ 20,276	$ 32,658	$ 50,719
Income (loss) from discontinued operations, net of tax	3,603	(4,096)	(59,299)	(3,556)
Net income (loss)	$ 14,528	$ 16,180	$ (26,641)	$ 47,163
Weighted-average common shares outstanding	110,206	123,892	113,419	133,517
Basic earnings from continuing operations per Common Share	$ 0.10	$ 0.16	$ 0.29	$ 0.38
Basic earnings (loss) from discontinued operations per Common Share	0.03	(0.03)	(0.52)	(0.03)
Net earnings (loss) per Common Share	$ 0.13	$ 0.13	$ (0.23)	$ 0.35
Diluted earnings (loss) per Common Share:
Income from continuing operations	$ 10,925	$ 20,276	$ 32,658	$ 50,719
Plus: Interest expense, net of tax, associated with 0.875% Convertible Senior Notes	506	0	1,519	0
Income from continuing operations, net of tax after the effect of assumed conversions	11,431	20,276	34,177	50,719
Income (loss) from discontinued operations, net of tax	$ 3,603	$ (4,096)	$ (59,299)	$ (3,556)
Weighted-average common shares outstanding	110,206	123,892	113,419	133,517
Plus: Dilutive effect of restricted stock unit awards, convertible notes and warrants	18,665	7,460	20,861	8,564
Weighted-average common shares outstanding assuming dilution	128,871	131,352	134,280	142,081
Diluted earnings from continuing operations per Common Share	$ 0.09	$ 0.15	$ 0.25	$ 0.36
Diluted (loss) earnings from discontinued operations per Common Share	0.03	(0.03)	(0.44)	(0.03)
Net earnings (loss) per Common Share	$ 0.12	$ 0.12	$ (0.19)	$ 0.33