CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Retained Earnings
Balance (in shares) at Jun. 30, 2018		45,258,571
Balance at Jun. 30, 2018	$ 486,438	$ 2,263	$ 194,436	$ 9,656	$ 280,083
Net loss	(8,830)				(8,830)
Foreign currency translation	(606)			(606)
Stock repurchase program (in shares)		(6,023,523)
Stock repurchase program	(106,252)	$ (301)	(105,951)
Exercise of SARs (in shares)		15,412
Exercise of SARs	(204)	$ 1	(205)
Stock-based compensation	7,065		7,065
Net restricted stock activity (in shares)		182,664
Net restricted stock activity	(1,821)	$ 9	(1,830)
Minority interest	20				20
Balance (in shares) at Mar. 31, 2019		39,433,124
Balance at Mar. 31, 2019	375,810	$ 1,972	93,515	9,050	271,273
Balance (in shares) at Dec. 31, 2018		41,472,468
Balance at Dec. 31, 2018	425,010	$ 2,074	128,964	8,145	285,827
Net loss	(14,633)				(14,633)
Foreign currency translation	905			905
Stock repurchase program (in shares)		(2,050,430)
Stock repurchase program	(37,920)	$ (102)	(37,818)
Exercise of SARs (in shares)		7,080
Exercise of SARs	(101)		(101)
Stock-based compensation	2,512		2,512
Net restricted stock activity (in shares)		4,006
Net restricted stock activity	(42)		(42)
Minority interest	79				79
Balance (in shares) at Mar. 31, 2019		39,433,124
Balance at Mar. 31, 2019	$ 375,810	$ 1,972	93,515	9,050	271,273
Balance (in shares) at Jun. 30, 2019	36,869,249	36,869,249
Balance at Jun. 30, 2019	$ 324,245	$ 1,843	47,152	9,342	265,908
Net loss	(98,244)				(98,244)
Foreign currency translation	$ (2,344)			(2,344)
Stock repurchase program (in shares)	(1,500,000)	(1,504,000)
Stock repurchase program	$ (26,356)	$ (75)	(26,281)
Exercise of SARs (in shares)		1,776
Exercise of SARs	28		28
Stock-based compensation	2,114		2,114
Net restricted stock activity (in shares)		199,181
Net restricted stock activity	(1,817)	$ 10	(1,827)
Minority interest	$ (90)				(90)
Balance (in shares) at Mar. 31, 2020	35,566,206	35,566,206
Balance at Mar. 31, 2020	$ 197,536	$ 1,778	21,186	6,998	167,574
Balance (in shares) at Dec. 31, 2019		35,563,611
Balance at Dec. 31, 2019	275,061	$ 1,778	21,230	9,480	242,573
Net loss	(75,037)				(75,037)
Foreign currency translation	(2,482)			(2,482)
Stock-based compensation	(25)		(25)
Net restricted stock activity (in shares)		2,595
Net restricted stock activity	(19)		(19)
Minority interest	$ 38				38
Balance (in shares) at Mar. 31, 2020	35,566,206	35,566,206
Balance at Mar. 31, 2020	$ 197,536	$ 1,778	$ 21,186	$ 6,998	$ 167,574