v3.21.2

Stock-Based Compensation - Additional Information (Detail) - $ / shares |  |  | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 01, 2021 | Aug. 04, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Jun. 30, 2021 | Dec. 31, 2020 | Jun. 30, 2020 | Dec. 31, 2019
Restricted Stock Awards |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of shares of restricted stock |  |  | 1,000 | 341,000 | 202,000 | 341,000 |  |  |  |
Weighted average grant date fair value per share |  |  | $ 26.02 | $ 20.50 | $ 18.68 | $ 20.50 |  |  |  |
Unvested shares |  |  | 374,000 | 341,000 | 374,000 | 341,000 | 378,000 | 341,000 | 0 | 0
Performance-based Restricted Stock Units |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of shares of restricted stock |  |  | 0 |  | 132,000 |  |  |  |  |
Weighted average grant date fair value per share |  |  | $ 0 |  | $ 24.40 |  |  |  |  |
Number of restricted stock |  |  |  |  |  |  |  |  | 0 |
Unvested shares |  |  | 110,000 |  | 110,000 |  | 110,000 | 0 |  |
2020 Equity Incentive Plan | Restricted Stock Awards |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of shares of restricted stock | 199,000 | 341,000 |  |  |  |  |  |  |  |
2020 Equity Incentive Plan | Determined Share Value |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Weighted average grant date fair value per share | $ 18.66 | $ 20.50 |  |  |  |  |  |  |  |
2020 Equity Incentive Plan | Performance-based Restricted Stock Units |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of shares of restricted stock | 132,000 |  |  |  |  |  |  |  |  |
Non-vested share awards percentage | 50.00% |  |  |  |  |  |  |  |  |
Vesting percentage payout schedule can produce | 100.00% |  |  |  |  |  |  |  |  |
Performance period | 3 years |  |  |  |  |  |  |  |  |
Percentage as rTSR of peer group | 55.00% |  |  |  |  |  |  |  |  |
2020 Equity Incentive Plan | Performance-based Restricted Stock Units | Minimum |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Vesting percentage payout schedule can produce | 0.00% |  |  |  |  |  |  |  |  |
2020 Equity Incentive Plan | Performance-based Restricted Stock Units | Maximum |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Vesting percentage payout schedule can produce | 200.00% |  |  |  |  |  |  |  |  |
2020 Equity Incentive Plan | Tranche One | Restricted Stock Awards |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Award vesting period | 1 year |  |  |  |  |  |  |  |  |
2020 Equity Incentive Plan | Tranche Two | Restricted Stock Awards |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Award vesting period | 3 years |  |  |  |  |  |  |  |  |
2020 Equity Incentive Plan | Tranche Three | Restricted Stock Awards |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Award vesting period | 4 years |  |  |  |  |  |  |  |  |

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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