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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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Stockholders' Equity - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Oct. 01, 2018	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized (in shares)	120,000,000		120,000,000	120,000,000.0	90,000,000.0
Common stock, shares issued (in shares)	65,059,097		64,923,539
Common stock, shares outstanding (in shares)	65,059,097		64,923,539
Preferred Stock, shares authorized (in shares)	10,000,000.0
Preferred Stock, shares issued (in shares)	0		0
Preferred Stock, shares outstanding (in shares)	0		0
Compensation expense	$ 3.9	$ 3.5
Remaining compensation cost yet to be recognized	$ 30.9
Remaining compensation cost yet to be recognized , period	3 years
2014 Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock available for delivery pursuant to the grant of awards (in shares)	3,700,000
2014 Plan [Member] \| Restricted Shares and Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares for vesting period	5 years