Acquisitions - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended		1 Months Ended	12 Months Ended		12 Months Ended	1 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Feb. 16, 2011 Common Stock	Jun. 30, 2012 KOR and PDI	Dec. 22, 2011 KOR and PDI	Dec. 22, 2011 KOR Electronics	Jan. 12, 2011 LNX	Mar. 31, 2011 LNX Sellers	Mar. 31, 2011 LNX Company	Jan. 12, 2011 LNX Maximum
Business Acquisition [Line Items]
Acquisition price paid in cash					$ 70,000	$ 71,019	$ 31,000
Escrow to support post-closing working capital adjustment and sellers' indemnification obligations						10,650	6,200
Escrow release date						Dec. 30, 2013	Aug. 31, 2012
Goodwill arising from acquisition						53,063
Revenue				19,779
Operating income				2,586
Follow-on public stock offering, shares			5,578
Follow-on public stock offering weighted average share included in basic and diluted earning per share	5,578	2,129
Earn-out payable amount based on achievement of financial targets during a period										5,000
Fair value of contingent consideration							4,828
Amount of cash released from escrow								1,523	27
Change in the fair value of the liability related to the LNX earn-out	$ (4,938)