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Stock-Based Compensation Plans and Employee Benefits - Summary of Characteristics of Options Outstanding (Detail)
shares in Thousands
12 Months Ended
Dec. 31, 2019
$ / shares
shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Outstanding at 12/31/19 | shares 350
Weighted-Average Remaining Contractual Life (Years) 4 years 9 months 18 days
Weighted-Average Exercise Price - Options Outstanding $ 26.42
Exercisable at 12/31/19 | shares 333
Weighted-Average Exercise Price - Options Exercisable $ 26.58
0.00 - 20.00 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price Range, Lower Limit 0.00
Exercise Price Range, Upper Limit $ 20.00
Outstanding at 12/31/19 | shares 13
Weighted-Average Remaining Contractual Life (Years) 3 months 18 days
Weighted-Average Exercise Price - Options Outstanding $ 16.58
Exercisable at 12/31/19 | shares 13
Weighted-Average Exercise Price - Options Exercisable $ 16.58
20.01 - 31.11 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price Range, Lower Limit 20.01
Exercise Price Range, Upper Limit $ 31.11
Outstanding at 12/31/19 | shares 337
Weighted-Average Remaining Contractual Life (Years) 4 years 10 months 24 days
Weighted-Average Exercise Price - Options Outstanding $ 26.79
Exercisable at 12/31/19 | shares 320
Weighted-Average Exercise Price - Options Exercisable $ 26.97