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Equity-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	12 Months Ended
	Oct. 03, 2019	Mar. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Recognized equity-based compensation expense				$ 5,500
Unrecognized equity compensation cost			$ 22,700
Unrecognized equity compensation cost, weighted-average period			1 year 7 months 6 days
Total fair value of shares vested during the period			$ 9,700	12,100	$ 13,800
Total intrinsic value of stock options exercised			$ 2,400	$ 1,700
Weighted average grant-date fair value of stock options granted			$ 9.41
Vesting period	2 years		3 years
Vesting percentage	50.00%		33.00%
Accumulated dividends paid related to performance shares which vested during the period					1,270
Omnibus Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for future issuance			15,000,000
Shares available for future issuance			8,480,000
2019 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of bonus payable in cash			50.00%
2019 Long-Term Incentive Plan Below Threshold Performance [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year			0.00%
2019 Long-Term Incentive Plan At or Above Maximum Performance [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year			100.00%
2.75x Performance Restricted Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Recognized equity-based compensation expense					8,400
Accumulated dividends paid related to performance shares which vested during the period					1,300
2.75x Performance Restricted Shares [Member] \| Upon Closing of Sale [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of restricted shares to vest		60.00%
2.75x Performance Restricted Shares [Member] \| Upon Closing of Sale [Member] \| Modification of Vesting Conditions [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Recognized equity-based compensation expense					$ 8,400
Time Vesting and Performance Vesting Restricted Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value			$ 26.55	$ 15.40	$ 17.71
Bonus Performance Restricted Units [Member] \| 2019 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of bonus payable by units			50.00%
Below Threshold Performance Bonus Restricted Units [Member] \| 2019 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year			0.00%
At or Above Maximum Performance Bonus Restricted Units [Member] \| 2019 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year			200.00%
Long-Term Incentive Performance Restricted Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting terms			The Long-Term Incentive Performance Restricted Units originally granted in 2019 (the “2019 LTIP Performance Awards”) contained a three-year performance period consisting of the 2019-2021 calendar years (or, extended through the end of the 2022 calendar year, as applicable) and were eligible to vest based upon the Company’s achievement of specific performance goals for the performance period, as defined by the 2019 Long-Term Incentive Grant. The total number of Long-Term Incentive Performance Restricted Units eligible to vest will be based on the level of achievement of the performance goals and ranges from 0% (if below threshold performance) up to 100% (for target or above performance). Upon achievement of the performance goals, only 50% of the award for a given level of performance will vest, with the remaining 50% subject to a one-year performance test period. The goal achieved must be met again or exceeded the next fiscal year before the remaining units are earned. In November 2019, certain performance-vesting restricted stock units were granted to the Company’s new Chief Executive Officer (the “CEO Performance Awards”). The CEO Performance Awards have a three-year performance period consisting of the 2020-2022 calendar years (or, extended through the end of the 2023 calendar year, as applicable) which are eligible to vest based upon the Company’s achievement of specific performance goals for the performance period, as defined by the CEO Performance Awards. The performance period and the performance goals for the CEO Performance Awards differed from those of the 2019 LTIP Performance Awards, as such, on February 25, 2020, the Board approved a modification (the “Modification”) to the 2019 LTIP Performance Awards in order to better align its terms with those of the CEO Performance Awards. The Compensation Committee of the Board determined that it was preferable to align the 2019 LTIP Performance Awards with the CEO Performance Awards to put everyone on the same performance cycle with the same performance goals. Pursuant to the Modification, the threshold and target performance goals were revised to align with the CEO Performance Awards threshold and target performance goals and the performance period was extended through calendar year 2022 (or, the end of the 2023 calendar year, as applicable) consistent with the CEO Performance Awards.
Long-Term Incentive Performance Restricted Units [Member] \| 2019 Long-Term Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Performance period			3 years
Deferred Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common stock shares to be received for each deferred stock unit			1
Period of time after director has left the board to receive shares			3 months