Share-Based Compensation - Schedule of Information with Respect to Outstanding and Exercisable Stock Options (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Options Outstanding	995,091	1,227,074	2,437,609	2,818,433
Options Outstanding, Weighted Average Exercise Price	$ 9.02	$ 10.07	$ 9.32	$ 9.59
Options Outstanding, Weighted Average Remaining Contractual Term (in Years)	4 years 6 months 25 days
Options Exercisable, Number Exercisable	929,700
Options Exercisable, Weighted Average Exercise Price	$ 8.68
Range of Exercise Prices $2.82 - $2.82 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Options Outstanding	64,000
Options Outstanding, Weighted Average Exercise Price	$ 2.82
Options Outstanding, Weighted Average Remaining Contractual Term (in Years)	1 year 4 months 9 days
Options Exercisable, Number Exercisable	64,000
Options Exercisable, Weighted Average Exercise Price	$ 2.82
Range of Exercise Prices $3.93 - $3.93 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Options Outstanding	106,656
Options Outstanding, Weighted Average Exercise Price	$ 3.93
Options Outstanding, Weighted Average Remaining Contractual Term (in Years)	3 years 4 months 17 days
Options Exercisable, Number Exercisable	106,656
Options Exercisable, Weighted Average Exercise Price	$ 3.93
Range of Exercise Prices $4.49 - $5.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Options Outstanding	108,922
Options Outstanding, Weighted Average Exercise Price	$ 4.60
Options Outstanding, Weighted Average Remaining Contractual Term (in Years)	3 years 9 months 18 days
Options Exercisable, Number Exercisable	108,922
Options Exercisable, Weighted Average Exercise Price	$ 4.60
Range of Exercise Prices $5.90 - $5.90 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Options Outstanding	23,704
Options Outstanding, Weighted Average Exercise Price	$ 5.90
Options Outstanding, Weighted Average Remaining Contractual Term (in Years)	3 years 2 months 4 days
Options Exercisable, Number Exercisable	23,704
Options Exercisable, Weighted Average Exercise Price	$ 5.90
Range of Exercise Prices $5.96 - $5.96 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Options Outstanding	105,645
Options Outstanding, Weighted Average Exercise Price	$ 5.96
Options Outstanding, Weighted Average Remaining Contractual Term (in Years)	4 years 4 months 20 days
Options Exercisable, Number Exercisable	105,645
Options Exercisable, Weighted Average Exercise Price	$ 5.96
Range of Exercise Prices $6.51 - $7.22 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Options Outstanding	73,308
Options Outstanding, Weighted Average Exercise Price	$ 6.60
Options Outstanding, Weighted Average Remaining Contractual Term (in Years)	11 months 8 days
Options Exercisable, Number Exercisable	73,308
Options Exercisable, Weighted Average Exercise Price	$ 6.60
Range of Exercise Prices $8.30 - $8.30 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Options Outstanding	105,533
Options Outstanding, Weighted Average Exercise Price	$ 8.30
Options Outstanding, Weighted Average Remaining Contractual Term (in Years)	5 years 2 months 4 days
Options Exercisable, Number Exercisable	105,533
Options Exercisable, Weighted Average Exercise Price	$ 8.30
Range of Exercise Prices $9.69 - $13.15 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Options Outstanding	72,794
Options Outstanding, Weighted Average Exercise Price	$ 9.94
Options Outstanding, Weighted Average Remaining Contractual Term (in Years)	5 years 5 months 1 day
Options Exercisable, Number Exercisable	72,794
Options Exercisable, Weighted Average Exercise Price	$ 9.94
Range of Exercise Prices $13.80 - $13.80 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Options Outstanding	236,452
Options Outstanding, Weighted Average Exercise Price	$ 13.80
Options Outstanding, Weighted Average Remaining Contractual Term (in Years)	6 years 2 months 4 days
Options Exercisable, Number Exercisable	171,061
Options Exercisable, Weighted Average Exercise Price	$ 13.80
Range of Exercise Prices $15.39 - $21.29 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Options Outstanding	98,077
Options Outstanding, Weighted Average Exercise Price	$ 17.91
Options Outstanding, Weighted Average Remaining Contractual Term (in Years)	6 years 11 months 1 day
Options Exercisable, Number Exercisable	98,077
Options Exercisable, Weighted Average Exercise Price	$ 17.91