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Share-Based Compensation - Certain Information Regarding Company's Share-Based Compensation (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Compensation expense, Total | $ 5,815 | $ 8,695 | $ 13,008
Deferred tax benefits, Total | 832 | 877 | 1,754
Realized tax benefits, Total | 654 | 275 | 1,777
Excess tax benefits (shortfall) | (661) | (237) | 641
Intrinsic value of options exercised | 0 | 0 | 2,343
Vesting of performance share units | 241 | 646 | 2,069
Cash received for strike price and tax withholdings | $ 84 | $ 0 | $ 238
Shares acquired through cashless exercise | 69 | 64 | 186
Value of shares acquired through cashless exercise | $ 1,056 | $ 1,315 | $ 6,133
Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Compensation expense, Stock options | 2,390 | 4,519 | 6,516
Deferred tax benefits, Total | 226 | 719 | 1,522
Realized tax benefits, Total | 0 | 0 | 577
Excess tax benefits (shortfall) | $ (600) | $ (209) | $ 415
Weighted average fair value per option or share, Stock option grants (in dollars per share) | $ 2.66 | $ 3.67 | $ 9.82
Restricted Stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Compensation expense | $ 0 | $ 514 | $ 3,104
Deferred tax benefits, Total | 0 | 0 | 47
Realized tax benefits, Total | 0 | 0 | 37
Excess tax benefits (shortfall) | $ 0 | $ 0 | $ (18)
Granted, weighted average grant date fair value (in dollars per share) | $ 0 | $ 0 | $ 30.73
Vesting of performance share units | $ 0 | $ 252 | $ 2,783
Performance Share Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Compensation expense | 671 | 945 | 2,508
Deferred tax benefits, Total | 0 | 52 | 185
Realized tax benefits, Total | 64 | 275 | 1,163
Excess tax benefits (shortfall) | $ (76) | $ (28) | $ 244
Granted, weighted average grant date fair value (in dollars per share) | $ 14.68 | $ 0 | $ 33.47
Vesting of performance share units | $ 925 | $ 2,151 | $ 5,520
Restricted Stock Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Compensation expense | 2,754 | 2,717 | 880
Deferred tax benefits, Total | 606 | 106 | 0
Realized tax benefits, Total | 590 | 0 | 0
Excess tax benefits (shortfall) | $ 15 | $ 0 | $ 0
Granted, weighted average grant date fair value (in dollars per share) | $ 16.79 | $ 16.13 | $ 26.47
Vesting of performance share units | $ 3,212 | $ 1,559 | $ 657

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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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