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Share-Based Compensation Expenses (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Share-based Payment Arrangement [Abstract]        
Option awards $ 6,300 $ 7,000 $ 15,900 $ 15,100
Other share-based awards 17,600 12,700 34,800 37,200
Total share-based compensation before tax 23,900 19,700 50,700 52,300
Tax benefit 5,700 4,700 12,100 12,500
Total share-based compensation expense included in net income (loss) $ 18,200 $ 15,000 $ 38,600 $ 39,800