Other Liabilities Other long-term liabilities (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Schedule Other Liabilities [Line Items]
Other Long-term liabilities	$ 3,813	$ 3,813	$ 9,372
Reversal of tax reserves	7,236	7,236
Tax-related
Schedule Other Liabilities [Line Items]
Other Long-term liabilities	104	104	7,340
Deferred compensation
Schedule Other Liabilities [Line Items]
Other Long-term liabilities	$ 3,709	$ 3,709	$ 2,032