Annual report pursuant to Section 13 and 15(d)

Income Taxes - Effective Income Tax Rate Reconciliation (Detail)

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Income Taxes - Effective Income Tax Rate Reconciliation (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax Disclosure [Abstract]      
Provision at the statutory rate $ 80,036 $ 149,697 $ 205,912
Increases (decreases) resulting from -      
State taxes 7,241 7,890 11,201
Foreign taxes 1,239 (13,059) (9,994)
Contingency reserves, net 4,438 (650) (3,385)
Production activity deduction (6,871) (6,033) (10,247)
Employee per diems, meals and entertainment 8,727 9,817 7,888
Taxes on unincorporated joint ventures (3,838) (6,429) (6,786)
Asset impairments 7,047    
Other (547) (2,226) 2,286
Total provision for income taxes from continuing operations $ 97,472 $ 139,007 $ 196,875