Acquisitions (2011 Narrative) (Details) (USD $)	12 Months Ended
	Jun. 30, 2011 entities	Jun. 30, 2010	Jun. 30, 2009 entities
Number of entities acquired	3	3
Total purchase consideration	134,630,000	$ 129,100,000
Initial purchase consideration	132,500,000
Initial purchase consideration deposited into escrow	14,000,000
Indemnification obligation	1,500,000
Additional purchase consideration paid	2,100,000
Amortization period, minimum (in years)	12
Amortization period, maximum (in years)	120
Revenue from acquired entities	40,000,000
Customer Contracts [Member]
Amortization period, minimum (in years)	4
Amortization period, maximum (in years)	10
Customer Relationships [Member]
Amortization period, minimum (in years)	4
Amortization period, maximum (in years)	10
Non-Compete Agreements [Member]
Amortization period, minimum (in years)	4
Amortization period, maximum (in years)	10
United States [Member]
Number of entities acquired	2	2
United Kingdom [Member]
Number of entities acquired	1	1	3
Additional purchase consideration payable			$ 5,000,000
TechniGraphics, Inc. [Member]
Date of acquisition	November 1, 2010
Ownership percentage of parent	100.00%
Applied Systems Research, Inc [Member]
Date of acquisition	November 1, 2010
Ownership percentage of parent	100.00%
Chronotech B.V [Member]
Date of acquisition	February 10, 2011
Ownership percentage of parent	100.00%