Annual report pursuant to Section 13 and 15(d)

Income Taxes - Provision for Income Taxes for Continuing Operations - (Benefit) Expense (Detail)

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Income Taxes - Provision for Income Taxes for Continuing Operations - (Benefit) Expense (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Current:      
Federal $ 43,655 $ 36,241 $ 36,874
State 3,766 6,414 5,771
Total current 47,421 42,655 42,645
Deferred 13,275 14,410 20,523
Total provision for income taxes for continuing operations - (benefit) expense $ 60,696 $ 57,065 $ 63,168