Derivatives and Hedging - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2012 EUR (€)	Dec. 31, 2012 Accrued Liabilities USD ($)	Dec. 31, 2012 Other Noncurrent Liabilities USD ($)	Dec. 31, 2011 Prepaid and Other Current Assets USD ($)	Dec. 31, 2011 Other Noncurrent Assets, net USD ($)	Dec. 31, 2012 Cash Flow Hedging Foreign Exchange Forward
Derivative [Line Items]
Derivative contract, expected settlement date										2014-02
Notional amount of foreign currency contracts designated as cash flow hedges	$ 12,200,000		$ 12,200,000		€ 9,300,000
Net loss related to derivative instruments designated as cash flow hedges recorded in OCI	107,000		107,000
Reclassification of foreign currency cash flow hedge into earnings in the next 12 months	62,000		62,000
Fair value of cash flow hedges, liability	66,000		66,000			23,000	43,000
Losses recognized in OCI	292,000		384,000
Reclassification of gains from OCI to revenue	193,000	266,000	507,000	363,000
Fair value of cash flow hedges, assets								1,200,000	248,000
Gains recognized in OCI		$ 942,000.0		$ 1,700,000