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Treasury Stock - Additional Information (Detail) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Oct. 17, 2016
Equity, Class of Treasury Stock [Line Items] |  |
Stock repurchase program, additional repurchase authorization |  | $ 300,000,000.0
Treasury stock (shares) | 64,278,312 |
2016 BOD Authorized Common Stock Repurchase [Member] |  |
Equity, Class of Treasury Stock [Line Items] |  |
Remaining authorized repurchase amount | $ 105,600,000 |
2004 Amended and Restated Stock Incentive Plan |  |
Equity, Class of Treasury Stock [Line Items] |  |
Treasury shares issued for restricted stock units that vested during the period (shares) | 514,053 |
Average cost of treasury shares that were issued for restricted stock units that vested during the period (usd per share) | $ 3.16 |
Shares repurchased to satisfy minimum employee withholding tax requirements resulting from the vesting of such restricted stock units (shares) | 200,872 |
Average cost per share of treasury stock acquired (usd per share) | $ 28.53 |
Non Tender Offer Repurchase [Member] | 2016 BOD Authorized Common Stock Repurchase [Member] |  |
Equity, Class of Treasury Stock [Line Items] |  |
Payments for Repurchase of Common Stock | $ 6,900,000 |
Treasury Stock, Shares, Acquired (shares) | 259,461 |
Average cost per share of treasury stock acquired (usd per share) | $ 26.71 |

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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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- Definition For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer. + References No definition available. + Details
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- Definition Number of treasury shares (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
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