8.	Stock-Based Compensation

Stock-based compensation expense recognized, together with the income tax benefits recognized, is as follows (in thousands):

	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2015		2014		2015		2014
Total stock-based compensation related to RSUs included in indirect costs and selling expense	$	4,835	$	3,574	$	8,473	$	6,194
Income tax benefit recognized for stock-based compensation expense	$	1,734	$	1,312	$	3,177	$	2,346

Under the terms of its 2006 Stock Incentive Plan (the 2006 Plan), the Company may issue, among others, non-qualified stock options, restricted stock, RSUs, SSARs, and performance awards, collectively referred to herein as equity instruments. During the periods presented all equity instrument grants were made in the form of RSUs. Other than performance-based RSUs (PRSUs) which contain a market-based element, the fair value of RSU grants was determined based on the closing price of a share of the Company’s common stock on the date of grant. The fair value of RSUs with market-based vesting features was also measured on the grant date, but was done so using a binomial lattice model.

In September 2014, the Company made its annual grant to key employees consisting of 180,570 PRSUs. The final number of such PRSUs that are earned by participants and vest is based on the achievement of a specified earnings per share (EPS) for the year ended June 30, 2015 and on the average share price of Company stock for the 90 day period ending September 23, 2015, 2016 and 2017 as compared to the average share price for the 90 day period ended September 23, 2014. The specified EPS for the year ended June 30, 2015 was met and the average share price of the Company’s stock for the 90 day period ending September 23, 2015 exceeded the average share price of the Company’s stock for the 90 day period ended September 23, 2014 resulting in an additional 7,884 RSUs earned by participants.

Annual grants under the 2006 Plan are generally made to the Company’s key employees during the first quarter of the Company’s fiscal year and to members of the Company’s Board of Directors during the second quarter of the Company’s fiscal year. With the approval of its Chief Executive Officer, the Company also issues equity instruments to strategic new hires and to employees who have demonstrated superior performance. In September 2015, the Company made its annual grant to its key employees consisting of 208,160 PRSUs. The final number of such performance-based RSUs which will be considered earned by the participants and eventually vest is based on the achievement of a specified earnings per share (EPS) for the year ending June 30, 2016 and on the average share price of Company stock for the 90 day period ending September 18, 2016, 2017 and 2018 as compared to the average share price for the 90 day period ended September 18, 2015. No PRSUs will be earned if the specified EPS for the fiscal year ending June 30, 2016 is not met. If EPS for the year ending June 30, 2016 exceeds the specified EPS and the average share price of the Company’s stock for the 90 day period ending September 18, 2016, 2017 and 2018 exceeds the average share price of the Company’s stock for the 90 day period ended September 18, 2015 by 100 percent or more, then an additional 208,160 RSUs could be earned by participants. This is the maximum number of additional RSUs that can be earned related to the September 2015 annual grant. In addition to the performance and market conditions, there is a service vesting condition which stipulates that 50 percent of the earned award will vest on September 18, 2018 and 50 percent of the earned award will vest on September 18, 2019, in both cases dependent upon continuing service by the grantee as an employee of the Company, unless the grantee is eligible for earlier vesting upon retirement or certain other events.

The total number of shares authorized by shareholders for grants under the 2006 Plan and its predecessor plan is 12,450,000 as of December 31, 2015. The aggregate number of grants that may be made may exceed this approved amount as forfeited SSARs, stock options, restricted stock and RSUs, and vested but unexercised SSARs and stock options that expire, become available for future grants. As of December 31, 2015, cumulative grants of 13,752,970 equity instruments underlying the shares authorized have been awarded, and 4,191,958 of these instruments have been forfeited.

Activity related to SSARs/non-qualified stock options and RSUs during the six months ended December 31, 2015 is as follows:

	SSARs/ Non-qualified Stock Options			RSUs
Outstanding, June 30, 2015		42,660			864,566
Granted		—			264,807
Exercised/Issued		(35,860	)		(78,078	)
Forfeited/Lapsed		(6,800	)		(28,223	)
Outstanding, December 31, 2015		—			1,023,072
Weighted-average grant date fair value for RSUs				$	80.16

As of December 31, 2015, there was $37.0 million of total unrecognized compensation costs related to RSUs scheduled to be recognized over a weighted-average period of 2.8 years.