CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - 9 months ended Sep. 30, 2015 - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings
Beginning Balance (in shares) at Dec. 31, 2014	65,303,000	65,303,000
Beginning Balance at Dec. 31, 2014	$ 104,138	$ 7	$ 94,690	$ 9,441
Net income	32,994			32,994
Restricted stock vestings (in shares)		336,000
Restricted stock vestings	74		74
Dividend equivalents cancelled upon forfeiture of performance-based restricted stock awards	75		18	57
Shares surrendered and cancelled upon vesting of restricted stock to satisfy tax withholdings (in shares)		(96,000)
Shares surrendered and cancelled upon vesting of restricted stock to satisfy tax withholdings	(1,645)		(1,645)
Stock-based compensation	5,385		5,385
Tax deductions relating to stock-based compensation	236		236
Shares issuable in lieu of dividend payments on unvested performance-based restricted stock awards	(149)		(149)
Issuance of common stock under employee stock purchase plan (in shares)		75,000
Issuance of common stock under employee stock purchase plan	1,131		1,131
Ending Balance at Sep. 30, 2015	$ 142,239	$ 7	$ 99,740	$ 42,492
Ending Balance (in shares) at Sep. 30, 2015	65,618,000	65,618,000