Condensed Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Capital in Excess of Par Value	Capital in Excess of Par Value Deferred Compensation, Share-based Payments	Capital in Excess of Par Value Deferred Stock Awards	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Treasury Stock Deferred Compensation, Share-based Payments	Treasury Stock Deferred Stock Awards
Balances at Jan. 03, 2015							$ (98,020)
Net income	$ 113,149
Derivative instruments, net of tax	4,228
Pension and postretirement plans, net of tax	1,300
Balances at Jul. 18, 2015							(92,492)
Balances at Jan. 02, 2016	1,243,082	$ 199	$ 636,501			$ 877,817	(96,800)	$ (174,635)
Balances (in shares) at Jan. 02, 2016		228,729,585						(16,463,137)
Net income	110,518					110,518
Derivative instruments, net of tax	1,009						1,009
Pension and postretirement plans, net of tax	(31,837)						(31,837)
Exercise of stock options	10,478		(1,555)					$ 12,033
Exercise of stock options (in shares)								960,796
Amortization of share-based compensation awards	11,318		11,318
Issuance of deferred compensation and deferred stock awards				$ (81)	$ (1,411)				$ 81	$ 1,411
Issuance of deferred compensation and deferred stock awards (in shares)									4,053	111,868
Tax effect related to share-based payment awards	(871)		(871)
Performance-contingent restricted stock awards issued (Note 13)			(4,449)					$ 4,449
Performance-contingent restricted stock awards issued (in shares)								419,367
Stock repurchases	$ (126,298)		(1,125)					$ (125,173)
Stock repurchases (in shares)	(6,892,194)							(6,892,194)
Dividends paid on vested share-based payment awards	$ (579)					(579)
Dividends paid — $0.305 per common share	(64,030)					(64,030)
Balances at Jul. 16, 2016	$ 1,152,790	$ 199	$ 638,327			$ 923,726	$ (127,628)	$ (281,834)
Balances (in shares) at Jul. 16, 2016		228,729,585						(21,859,247)