Unaudited Consolidated Condensed Statement of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Earnings	Accumulated Other Comprehensive Loss	Non-Controlling Interest
Changes in Stockholders’ Equity
Cumulative adjustment from implementation of ASU 2016-09 | Accounting Standards Update 2016-09	$ 4,203			$ 4,203
Beginning Balance at Dec. 31, 2016	$ 108,175	$ 726	$ 0	116,341	$ (12,391)	$ 3,499
Beginning Balance, Shares at Dec. 31, 2016	72,635,032	72,635,032
Changes in Stockholders’ Equity
Share-based compensation recognized	$ 4,189		4,189
Repurchase of common stock	(7,671)	$ (5)	(2,702)	(4,964)
Repurchase of common stock, Shares		(465,240)
Restricted stock units delivered, net of cashless	(1,485)	$ 2	(1,487)
Restricted stock units delivered, net of cashless, Shares		211,513
Net income	43,352			43,118		234
Cash dividends declared on common stock	(14,523)			(14,523)
Other comprehensive loss	(2,225)				(2,225)
Ending Balance at Jun. 30, 2017	$ 134,015	$ 723	$ 0	$ 144,175	$ (14,616)	$ 3,733
Ending Balance, Shares at Jun. 30, 2017	72,381,305	72,381,305