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Stockholders' Equity - Additional Information (Detail) - USD ($) | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |  |
Number of stock options granted | 0 |
Number of stock options forfeited | 0 |
Dividend declared and paid per share | $ 0 | $ 0
Authorized to purchase of common stock under the stock repurchase program | $ 535,000,000.0 |
Repurchase of common stock | 0 | 0
Cumulative repurchase of common stock | 16,300,000 |
Aggregate cost of repurchase of common stock | $ 474,900,000 |

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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + 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)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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