Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 28, 2014	Dec. 28, 2013
Assets
Cash and cash equivalents	$ 21,726	$ 17,965
Marketable securities	65,113	63,093
SERP Investment	10,268	8,752
Accounts receivable, net	67,526	57,193
Inventories	218,931	240,452
Prepaid expenses	15,800	17,293
Total current assets	399,364	404,748
Property and equipment, net	708,272	704,985
Goodwill	35,162	35,162
Intangible and other assets, net	3,632	3,347
Total assets	1,146,430	1,148,242
Liabilities
Accounts payable	123,457	133,568
Accrued expenses	29,310	27,416
Accrued self-insurance	19,411	19,333
Deferred revenue, net	3,771	7,056
Income taxes payable	1,583	1,628
Deferred income taxes	4,384	4,219
Total current liabilities	181,916	193,220
Postretirement benefit obligations	18,944	17,101
Deferred income taxes	94,681	97,934
Other	4,269	5,934
Total liabilities	299,810	314,189
Shareholders' Equity
Common stock, no par value, 100,800,000 shares authorized, 33,047,807 shares issued	9,949	9,949
Retained earnings	982,447	971,022
Accumulated other comprehensive income (Net of deferred taxes of $3,552 in 2014 and $2,753 in 2013)	5,081	3,939
Shareholders' equity before treasury stock	997,477	984,910
Treasury stock at cost, 6,149,364 shares	(150,857)	(150,857)
Total shareholders' equity	846,620	834,053
Total liabilities and shareholders' equity	$ 1,146,430	$ 1,148,242