Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 30, 2017
Current:
Cash and cash equivalents	$ 50,215	$ 47,917
Marketable securities	61,209	63,665
SERP investment	15,409	14,476
Accounts receivable, net	48,452	56,265
Inventories	267,065	279,509
Prepaid expenses and other current assets	19,621	19,435
Income taxes recoverable	0	2,047
Total current assets	461,971	483,314
Property and equipment, net	883,424	886,243
Goodwill	52,330	52,330
Intangible and other assets, net	20,882	19,852
Total assets	1,418,607	1,441,739
Current:
Accounts payable	200,155	216,252
Accrued expenses	34,641	33,403
Accrued self-insurance	16,526	17,470
Deferred revenue, net	5,334	7,217
Income taxes payable	4,974	0
Total current liabilities	261,630	274,342
Long-term debt	17,912	34,988
Postretirement benefit obligations	18,423	18,409
Accrued self-insurance	20,136	20,140
Deferred income taxes	86,373	87,422
Other	13,533	13,594
Total liabilities	418,007	448,895
Shareholders' Equity
Common stock, no par value, 100,800,000 shares authorized, 33,047,807 shares issued, 26,898,443 shares outstanding	9,949	9,949
Retained earnings	1,141,474	1,127,872
Accumulated other comprehensive income (Net of deferred taxes of $13 in 2018 and $2,310 in 2017)	34	5,880
Shareholders' equity before treasury stock	1,151,457	1,143,701
Treasury stock at cost, 6,149,364 shares	(150,857)	(150,857)
Total shareholders' equity	1,000,600	992,844
Total liabilities and shareholders' equity	$ 1,418,607	$ 1,441,739