CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Unaudited) - 9 months ended Mar. 31, 2017 - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Treasury	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss, Net of Income Tax
Preferred stock, beginning balance (in shares) at Jun. 30, 2016		515
Preferred stock, beginning balance at Jun. 30, 2016	$ 683,590	$ 5,063	$ 645	$ (30,785)	$ 331,156	$ 384,815	$ (7,304)
Common stock, issued, beginning balance (in shares) at Jun. 30, 2016	64,513,494		64,513,494
Common stock, treasury and outstanding, beginning balance (in shares) at Jun. 30, 2016	63,219,392		63,219,392	(1,294,102)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 102,191					102,191
Other comprehensive income	6,142						6,142
Cash dividends on preferred stock	(232)					(232)
Stock-based compensation expense, issued (in shares)			31,674
Stock-based compensation expense, outstanding (in shares)			31,674
Stock-based compensation expense	10,964				10,964
Restricted stock unit vesting and tax benefits, issued (in shares)			253,653
Restricted stock unit vesting and tax benefits, treasury (in shares)				(114,330)
Restricted stock unit vesting and tax benefits, outstanding (in shares)			139,323
Restricted stock unit vesting and tax benefits	(2,351)		$ 3	$ (2,483)	129	0
Preferred stock, ending balance (in shares) at Mar. 31, 2017		515
Preferred stock, ending balance at Mar. 31, 2017	$ 800,304	$ 5,063	$ 648	$ (33,268)	$ 342,249	$ 486,774	$ (1,162)
Common stock, issued, ending balance (in shares) at Mar. 31, 2017	64,798,821		64,798,821
Common stock, treasury and outstanding, ending balance (in shares) at Mar. 31, 2017	63,390,389		63,390,389	(1,408,432)