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Earnings Per Share - Additional Information (Detail) - USD ($) $ in Thousands, shares in Millions | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] |  |
Shares repurchased | 0.8 |
Shares repurchased at cost | $ 7,500 | $ 14,069
Performance Restricted Stock Units [Member] |  |
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] |  |
Mark-to-market adjustment | $ 2,200 | $ (900)

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