Acquisitions (2013 Narrative) (Details) (USD $)	12 Months Ended
	Jun. 30, 2013 entity	Jun. 30, 2012 entity	Jun. 30, 2011 item
Number of entities acquired	3	5	3
Total purchase consideration	$ 106,394,000	$ 199,100,000	$ 134,600,000
Initial purchase consideration deposited into escrow	10,500,000
Additional purchase consideration paid	6,400,000
Revenue from acquired entities	$ 86,300,000
Minimum [Member]
Amortization period	12 months
Maximum [Member]
Amortization period	180 months
IDL Solutions, Inc. (IDL) [Member]
Date of acquisition	Dec. 31, 2012
Ownership percentage of parent	100.00%
Emergint Technologies, Inc. (Emergint) [Member]
Date of acquisition	Nov. 30, 2012
Ownership percentage of parent	100.00%
Delta Solutions And Technologies, Inc. (Delta) [Member]
Date of acquisition	Jul. 02, 2012
Ownership percentage of parent	100.00%
Customer Contracts, Customer Relationships And Non Compete Agreements [Member]
Weighted-average amortization period	14 years 6 months
Customer Contracts, Customer Relationships And Non Compete Agreements [Member] | Minimum [Member]
Amortization period	14 years
Customer Contracts, Customer Relationships And Non Compete Agreements [Member] | Maximum [Member]
Amortization period	15 years