Debt - Additional Information (Detail) (Senior Secured Credit Facility, USD $) In Thousands, unless otherwise specified	1 Months Ended		1 Months Ended					12 Months Ended			1 Months Ended
	Feb. 12, 2010 Loan and security agreement with Silicon Valley Bank Maximum $15,000 minimum trailing-four-quarter cash-flow covenant	Feb. 12, 2010 Loan and security agreement with Silicon Valley Bank Minimum	Feb. 12, 2010 Loan and security agreement with Silicon Valley Bank Minimum Less than $10,000 of cash equivalents in accounts with the Lender in excess of borrowings	Feb. 12, 2010 Loan and security agreement with Silicon Valley Bank Revolver	Feb. 12, 2010 Loan and security agreement with Silicon Valley Bank Term Loan	Feb. 12, 2010 Loan and security agreement with Silicon Valley Bank Term Loan Maximum	Feb. 12, 2010 Loan and security agreement with Silicon Valley Bank Foreign Subsidiaries	Jun. 30, 2012 Amended Loan Agreement	Jun. 30, 2012 Amended Loan Agreement Thereafter	Jun. 30, 2012 Amended Loan Agreement Minimum	Mar. 30, 2011 Amended Loan Agreement Revolver	Mar. 30, 2011 Amended Loan Agreement Term Loan
Debt Instrument [Line Items]
Senior secured credit facility, maximum borrowing capacity				$ 15,000	$ 20,000						$ 35,000
Debt instrument borrowing period				2 years
Debt instrument maturity date				Feb. 11, 2012	Feb. 11, 2014						Feb. 11, 2014
Number of term loan borrowings						3
Percentage of voting stock of foreign subsidiaries							65.00%
Quick Ratio		1.5								1.0
Cash equivalents in accounts with the Lender in excess of borrowings	10,000
Minimum trailing-four-quarter cash-flow covenant			15,000					15,000	17,500
Debt instrument extended borrowing period											2 years
Senior secured credit facility, terminated amount												$ 20,000