Shareholders' Equity and Share Based Compensation - Summary of Performance base restricted share unit activity (Detail) - Performance-Based Restricted Share Unit [Member] - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Number of Performance-based Restricted Share Units, Beginning balance	230,000	869,000	739,000
Number of Performance-based Restricted Share Units, Granted		158,000	1,068,000
Number of Performance-based Restricted Share Units, Issued			(840,000)
Number of Performance-based Restricted Share Units, Exercised	(200,000)	(487,000)
Number of Performance-based Restricted Share Units, Forfeited		(310,000)
Number of Performance-based Restricted Share Units, Forfeited/expired			(98,000)
Number of Performance-based Restricted Share Units, Ending balance	30,000	230,000	869,000
Number of Performance-based Restricted Share Units, Exercisable	30,000	200,000	75,000
Weighted Average Grant Date Fair Value, Beginning balance	$ 6.83	$ 5.89	$ 6.08
Weighted Average Grant Date Fair Value, Granted		7.72	4.75
Weighted Average Grant Date Fair Value, Issued			4.83
Weighted Average Grant Date Fair Value, Exercised	6.41	5.70
Weighted Average Grant Date Fair Value, Forfeited		6.66
Weighted Average Grant Date Fair Value, Forfeited/expired			7.16
Weighted Average Grant Date Fair Value, Ending balance	8.31	6.83	5.89
Weighted Average Grant Date Fair Value, Exercisable	$ 8.31	$ 6.49	$ 4.79