Correction of Prior Year Interim Consolidated Financial Statements (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Consolidated statements of operations
Provision (benefit) for income taxes	$ (14,081)	$ 3,042	$ (9,342)	$ 6,929
Net income (loss)	$ 30,178	$ 14,248	$ 48,931	$ 33,180
Net income (loss) per share - basic (in dollars per share)	$ 0.77	$ 0.37	$ 1.25	$ 0.85
Net income (loss) per share - diluted (in dollars per share)	$ 0.75	$ 0.36	$ 1.22	$ 0.84
As reported
Consolidated statements of operations
Provision (benefit) for income taxes		$ 1,885		$ 4,223
Net income (loss)		$ 15,405		$ 35,886
Net income (loss) per share - basic (in dollars per share)		$ 0.40		$ 0.92
Net income (loss) per share - diluted (in dollars per share)		$ 0.39		$ 0.90
Correction
Consolidated statements of operations
Provision (benefit) for income taxes		$ 1,157		$ 2,706
Net income (loss)		$ (1,157)		$ (2,706)
Net income (loss) per share - basic (in dollars per share)		$ (0.03)		$ (0.07)
Net income (loss) per share - diluted (in dollars per share)		$ (0.03)		$ (0.06)