CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 10,954	$ 15,403
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on disposal of fixed assets	0	(60)
Deferred tax benefit	(1,682)	0
Changes in operating assets and liabilities:
Changes in operating assets and liabilities	(418)	(516)
Net cash provided by operating activities	8,854	14,827
Cash flows from investing activities:
Proceeds from sale of fixed assets	0	152
Net cash provided by investing activities	0	152
Cash flows from financing activities:
Withholding taxes - stock-based compensation	(6)	(22)
Common stock dividend	(4,417)	0
Net cash used in financing activities	(4,423)	(22)
Net increase in cash	4,431	14,957
Cash at beginning of period	34,562	6,520
Cash at end of period	$ 38,993	$ 21,477