Loss before Income Tax Provision and Income Tax Expense (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Loss before provision for income taxes
Domestic	$ (192,998)	$ (182,974)	$ (123,603)
Foreign	(80,721)	(37,898)
Total	(273,719)	(220,872)	(123,603)
Provision for income taxes, Current:
Federal
State	216
Foreign	223
Total	$ 439