Earnings (Loss) Per Share (Computation of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Net (loss) income from continuing operations	$ (7,654)	$ 10,088	$ (29,278)	$ (23,101)	$ (4,556)	$ 25,241	$ 43,130	$ 18,613	$ (49,945)	$ 82,428	$ 65,541
Net (loss) income from discontinued operations, net of tax	(5,897)	(75,925)	(37,223)	(14,324)	(65,385)	(12,555)	3,973	1,233	(133,369)	(72,734)	1,889
Net (loss) income	$ (13,551)	$ (65,837)	$ (66,501)	$ (37,425)	$ (69,941)	$ 12,686	$ 47,103	$ 19,846	$ (183,314)	$ 9,694	$ 67,430
Denominator:
Basic weighted average shares outstanding (shares)									104,076	103,848	103,611
Effect of dilutive stock options, unvested restricted stock and unvested restricted share units (shares)									0	629	637
Diluted weighted average shares outstanding (shares)									104,076	104,477	104,248
Basic net (loss) income per common share:
Basic net income (loss) per common share from continuing operations (USD per share)	$ (0.07)	$ 0.10	$ (0.28)	$ (0.22)	$ (0.04)	$ 0.24	$ 0.42	$ 0.18	$ (0.48)	$ 0.79	$ 0.63
Basic net income (loss) per common share from discontinued operations (USD per share)	(0.06)	(0.73)	(0.36)	(0.14)	(0.63)	(0.12)	0.04	0.01	(1.28)	(0.70)	0.02
Basic net income (loss) per common share (USD per share)	(0.13)	(0.63)	(0.64)	(0.36)	(0.67)	0.12	0.45	0.19	(1.76)	0.09	0.65
Diluted net (loss) income per common share:
Diluted net income (loss) per common share from continuing operations (USD per share)	(0.07)	0.10	(0.28)	(0.22)	(0.04)	0.24	0.41	0.18	(0.48)	0.79	0.63
Diluted net income (loss) per common share from discontinued operations (USD per share)	(0.06)	(0.73)	(0.36)	(0.14)	(0.63)	(0.12)	0.04	0.01	(1.28)	(0.70)	0.02
Diluted net income (loss) per common share (USD per share)	$ (0.13)	$ (0.63)	$ (0.64)	$ (0.36)	$ (0.67)	$ 0.12	$ 0.45	$ 0.19	$ (1.76)	$ 0.09	$ 0.65