Supplementary Information - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Additional Financial Information Disclosure [Abstract]
Accrued Employee Benefits, Current	$ 20,714	$ 27,678
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	18,169	18,169
Accrued Professional Fees, Current	13,039	20,326
Deferred mobilization fees	2,681	2,649
Workers' Compensation Liability, Current	1,583	2,801
Accrued Liabilities, Current	$ 56,186	$ 71,623