Stock-Based Compensation (Tables)

6 Months Ended

Dec. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of stock-based compensation expense recognized

	Three Months Ended December 31,				Six Months Ended December 31,
	2013		2012		2013		2012
Stock-based compensation included in indirect costs and selling expenses:
Restricted stock and restricted stock unit (RSU) expense	$	3,301	$	3,327	$	5,744	$	5,481
Non-qualified stock option and stock settled stock appreciation right (SSAR) expense		—		174		41		420
Total stock-based compensation expense	$	3,301	$	3,501	$	5,785	$	5,901
Income tax benefit recognized for stock-based compensation expense	$	1,278	$	1,302	$	2,225	$	2,216

Schedule of activity related to SSARs/non-qualified stock options and RSUs

	SSARs/ Non-qualified Stock Options			RSUs
Outstanding, June 30, 2013		275,550			1,042,746
Granted		—			234,858
Exercised/Issued		(129,430	)		(300,488	)
Forfeited/Lapsed		(3,230	)		(27,130	)
Outstanding, December 31, 2013		142,890			949,986
Weighted average grant date fair value for RSUs				$	72.09