Significant Components of Company's Deferred Tax Assets (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Schedule of Deferred Income Tax Assets and Liabilities [Line Items]
Net deferred tax assets	$ 398	[1]	$ 4,339	[1]
Domestic jurisdictions
Schedule of Deferred Income Tax Assets and Liabilities [Line Items]
Net deferred tax assets	0		2,999
Foreign jurisdictions
Schedule of Deferred Income Tax Assets and Liabilities [Line Items]
Net deferred tax assets	$ 398		$ 1,340

[1] Net deferred tax for the year ended December 31, 2013 from domestic and foreign jurisdictions was $2,999 and $1,340, respectively. Net deferred tax for the year ended December 31, 2014 from domestic and foreign jurisdictions was $0 and $398, respectively.