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Income Taxes - Effective Income Tax Rate Reconciliation (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]      
Provision at the statutory rate $ 107,690 $ 80,036 $ 149,697
Increases (decreases) resulting from -      
State taxes 6,479 7,241 7,890
Foreign taxes 1,860 1,239 (13,059)
Contingency reserves, net (13,540) 4,438 (650)
Production activity deduction (8,586) (6,871) (6,033)
Employee per diems, meals and entertainment 8,764 8,727 9,817
Taxes on unincorporated joint ventures (656) (3,838) (6,429)
Asset impairments 1,909 7,047  
Other 3,326 (547) (2,226)
Total provision for income taxes from continuing operations $ 107,246 $ 97,472 $ 139,007