CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - 6 months ended Jun. 30, 2015 - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Total
Balance at Dec. 30, 2014	$ 918	$ 654,033	$ 1,060,211	$ (1,158,652)	$ 556,510
Balance (in shares) at Dec. 30, 2014	91,790
Increase (Decrease) in Stockholders' Equity
Net income			63,147		63,147
Cash dividends declared			(16,292)		(16,292)
Tax impact of stock options exercised, net of cancellations		7,838			7,838
Stock-based compensation		9,823			9,823
Common stock issued under stock-based compensation plans	$ 8	16,883			16,891
Common stock issued under stock-based compensation plans(in shares)	819
Treasury stock purchases				(84,197)	(84,197)
Payment for future treasury stock purchases under accelerated stock repurchase agreement		(4,601)			(4,601)
Balance at Jun. 30, 2015	$ 926	$ 683,976	$ 1,107,066	$ (1,242,849)	$ 549,119
Balance (in shares) at Jun. 30, 2015	92,609