Equity Incentive Plans - Additional Information (Detail) - USD ($)			12 Months Ended
	Jul. 18, 2020	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Performance-based options vested		0
Intrinsic value of options exercised			$ 332,000	$ 1,254,000	$ 3,351,000
Fair value of options vested			254,000	2,118,000	2,819,000
Time Based Stock Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense			$ 796,000	1,319,000	1,744,000
Options vested granted percentage			20.00%
Unrecognized compensation cost			$ 849,000
Unrecognized compensation cost weighted-average recognition period			30 months
Options vesting description			The Company’s time-based options principally vest 20% on each anniversary date.
Performance Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense			$ 7,847	0	$ 0
Options outstanding		2,539,600
Options, Average grant date fair value		$ 3.09
Share based stock awards vesting period					3 years
Performance Shares [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share issuable based on performance					2,834,390
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award expect to vest based on service condition					358,506
Number of share of stock issued for each award					1
Service Based Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense			2,071,000	2,033,000
Unrecognized compensation cost			1,491,000	$ 2,158,000
Service Based Awards [Member] | Vesting Period 1 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options vested granted percentage					0.333%
Service Based Awards [Member] | Vesting Period 2 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options vested granted percentage					0.333%
Service Based Awards [Member] | Vesting Period 3 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options vested granted percentage					0.333%
Performance-based Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost			$ 6,196,000
Unrecognized compensation cost weighted-average recognition period			3 years
Compensation expense			$ 1,460,000
Options, Average grant date fair value			$ 1.02
Share based stock awards vesting period	3 years
Share-based Compensation, shares granted	6,448,276
Performance-based Restricted Stock Units [Member] | Vesting Period 1 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation weighted average of the fair market value per share of the common Stock	$ 2.50
Performance-based Restricted Stock Units [Member] | Vesting Period 2 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation weighted average of the fair market value per share of the common Stock	5.00
Performance-based Restricted Stock Units [Member] | Vesting Period 3 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation weighted average of the fair market value per share of the common Stock	7.50
Performance-based Restricted Stock Units [Member] | Vesting Period 4 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation weighted average of the fair market value per share of the common Stock	$ 10.00
2012 Omnibus Equity Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum number of shares reserved			15,316,000