Segment Reporting - Information about Operations in Different Segments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Revenues	$ 603,811	$ 807,488
Operating income	(41,642)	53,033
Capital expenditures	37,893	37,649
Depreciation and amortization	24,602	20,222
Drydock amortization	6,946	5,550
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenues	161,825	326,062
Operating income	2,091	87,952
Capital expenditures	4,068	3,755
Depreciation and amortization	5,032	5,030
Drydock amortization	1,955	2,961
Americas [Member]
Segment Reporting Information [Line Items]
Revenues	181,625	148,184
Operating income	(31,811)	(16,410)
Capital expenditures	7,405	22,010
Depreciation and amortization	8,297	6,805
Drydock amortization	4,562	1,908
Middle East [Member]
Segment Reporting Information [Line Items]
Revenues	260,361	333,242
Operating income	(9,428)	(18,509)
Capital expenditures	22,579	10,552
Depreciation and amortization	9,575	6,510
Drydock amortization	429	681
Corporate [Member]
Segment Reporting Information [Line Items]
Operating income	(2,494)
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Capital expenditures	3,841	1,332
Depreciation and amortization	$ 1,698	$ 1,877