Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Revenues [Abstract]
Service revenue	$ 491,696	$ 449,245
Reimbursement revenue	81,993	79,819
Total revenue	573,689	529,064
Costs and Expenses [Abstract]
Direct costs	318,819	303,194
Reimbursable out-of-pocket expenses	81,993	79,819
Selling, general and administrative	98,913	84,912
Depreciation	16,898	15,462
Amortization of Intangible Assets	3,486	3,796
Total costs and expenses	520,109	487,183
Income from operations	53,580	41,881
Interest Income (Expense), Net	(1,732)	(2,764)
Miscellaneous income (expense)	3,373	(201)
Total other expense	1,641	(2,965)
Income before income taxes	55,221	38,916
Provision for income taxes	18,079	12,962
Net income	$ 37,142	$ 25,954
Earnings per common share
Basic	$ 0.68	$ 0.46
Diluted	$ 0.67	$ 0.45
Shares used in computing earnings per common share
Basic	54,739	56,254
Diluted	55,762	57,395