Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 16, 2012	Dec. 31, 2011
Current assets:
Cash	$ 857	$ 773
Accounts and notes receivable, net	253,820	243,763
Inventories	352,380	308,621
Prepaid expenses and other	15,434	17,329
Deferred tax asset, net	7,604	6,896
Total current assets	630,095	577,382
Notes receivable, net	22,645	23,221
Property, plant and equipment:
Property, plant and equipment	717,038	686,794
Less accumulated depreciation and amortization	(423,583)	(413,695)
Net property, plant and equipment	293,455	273,099
Goodwill	34,639	170,941
Investment in direct financing leases	2,542	2,677
Other assets	11,637	11,049
Total assets	1,009,370	1,073,768
Current liabilities:
Current maturities of long-term debt and capital lease obligations	2,144	2,932
Accounts payable	237,992	234,722
Accrued expenses	54,904	61,459
Total current liabilities	295,040	299,113
Long-term debt	337,386	278,546
Capital lease obligations	14,868	15,905
Deferred tax liability, net	8,524	40,671
Other liabilities	32,651	34,910
Commitments and contingencies
Stockholders' equity:
Preferred stock - no par value. Authorized 500 shares; none issued	0	0
Common stock - $1.66 2/3 par value. Authorized 50,000 shares; issued 13,765 and 13,727 shares, respectively	22,943	22,878
Additional paid-in capital	118,619	118,222
Common stock held in trust	(1,254)	(1,254)
Deferred compensation obligations	1,254	1,254
Accumulated other comprehensive loss	(14,707)	(14,707)
Retained earnings	246,253	330,470
Common stock in treasury; 1,540 and 1,541 shares, respectively	(52,207)	(52,240)
Total stockholders' equity	320,901	404,623
Total liabilities and stockholders' equity	1,009,370	1,073,768
Contractual Rights [Member]
Property, plant and equipment:
Customer contracts and relationships, net	$ 14,357	$ 15,399