CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY Statement - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Retained Earnings
Balance (in shares) at Jun. 30, 2017		46,400,367
Balance at Jun. 30, 2017	$ 493,620	$ 2,320	$ 214,109	$ 3,415	$ 273,776
Net income (loss)	3,149
Foreign currency translation adjustments	7,056			7,056
Stock repurchase program (in shares)		(585,967)
Stock repurchase program	(9,635)	$ (30)	(9,605)
Exercise of SARs (in shares)		27,793
Exercise of SARs	(276)	$ 2	(278)
Stock-based compensation	5,933		5,933
Shares issued through franchise stock incentive program (in shares)		522
Shares issued through franchise stock incentive program	7	$ 0	7
Net restricted stock activity (in shares)		283,534
Net restricted stock activity	(2,003)	$ 14	(2,017)
Minority interest	(184)				(184)
Balance (in shares) at Mar. 31, 2018		46,126,249
Balance at Mar. 31, 2018	497,667	$ 2,306	208,149	10,471	276,741
Balance (in shares) at Dec. 31, 2017		46,688,423
Balance at Dec. 31, 2017	514,173	$ 2,335	216,301	11,843	283,694
Net income (loss)	(7,020)				(7,020)
Foreign currency translation adjustments	(1,372)			(1,372)
Stock repurchase program (in shares)		(585,967)
Stock repurchase program	(9,635)	$ (30)	(9,605)
Exercise of SARs (in shares)		18,697
Exercise of SARs	(183)	$ 1	(184)
Stock-based compensation	1,690		1,690
Net restricted stock activity (in shares)		5,096
Net restricted stock activity	(53)		(53)
Minority interest	67				67
Balance (in shares) at Mar. 31, 2018		46,126,249
Balance at Mar. 31, 2018	$ 497,667	$ 2,306	208,149	10,471	276,741
Balance (in shares) at Jun. 30, 2018	45,258,571	45,258,571
Balance at Jun. 30, 2018	$ 486,438	$ 2,263	194,436	9,656	280,083
Net income (loss)	(8,830)
Foreign currency translation adjustments	$ (606)			(606)
Stock repurchase program (in shares)	(6,023,523)	(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	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 income (loss)	(14,633)				(14,633)
Foreign currency translation adjustments	$ 905			905
Stock repurchase program (in shares)	(2,050,430)	(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	39,433,124
Balance at Mar. 31, 2019	$ 375,810	$ 1,972	$ 93,515	$ 9,050	$ 271,273