Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

v3.3.1.900
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax Disclosure [Line Items]      
Depreciation and amortization $ 156,194 $ 145,121 $ 134,053
Total income tax expense (benefit) 22,313 24,076 $ 25,608
Valuation Allowances and Reserves, Period Increase (Decrease) 40,600 2,800  
Liability for unrecognized tax benefits 7,837 8,199  
Unrecognized tax benefits 3,600    
Accrued interest and penalties related to uncertain tax positions 3,400 $ 3,300  
Increase of interest 400    
MEXICO | Foreign Tax Authority [Member]      
Income Tax Disclosure [Line Items]      
Total income tax expense (benefit) (2,200)    
ALASKA      
Income Tax Disclosure [Line Items]      
Depreciation and amortization 25,000    
Alaska Drilling Rigs [Member]      
Income Tax Disclosure [Line Items]      
Depreciation and amortization $ 24,700