Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Jul. 31, 2009	Sep. 30, 2012 Purchased Technology [Member]	Dec. 31, 2003 Data Junction [Member] Developed Technology [Member]	Sep. 30, 2009 ChanneLinx [Member] Developed Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 38,508,000	$ 38,508,000
Purchase of assets from Greenville			2,600,000
Other intangible assets	954,000	1,085,000
Accumulated amortization, net				8,000,000
Amortizable intangible assets related to developed technology					6,300,000	2,600,000
Estimated useful life	5 years
Amortization expense for Intangible assets	100,000
Anticipated amortization expense for intangible assets for 2013	500,000
Anticipated amortization expense for intangible assets, Year Two	$ 500,000