Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents	$ 2,799	$ 7,782
Accounts receivable, net	149,611	112,841
Inventories, net (includes LIFO debit of $1,932 as of March 31, 2013)	275,185	290,023
Prepaid expenses and other	6,957	11,731
Total current assets	434,552	422,377
Property and equipment, at cost	348,939	347,935
Accumulated depreciation	(156,274)	(151,608)
Net property and equipment	192,665	196,327
Goodwill	40,787	40,787
Intangible assets, net	35,202	35,424
Other long-term assets	12,211	11,079
Total assets	715,417	705,994
Liabilities
Current portion of long-term debt	15,255	15,282
Accounts payable	110,904	101,471
Accrued payroll	9,964	10,705
Other accrued liabilities	16,263	14,984
Total current liabilities	152,386	142,442
Credit facility revolver	174,955	177,575
Long-term debt	46,667	48,854
Other long-term liabilities	10,870	11,410
Deferred income taxes	34,821	35,856
Total liabilities	419,699	416,137
Shareholders' Equity
Preferred stock	0	0
Common stock	123,186	122,272
Accumulated other comprehensive loss	(576)	(579)
Retained earnings	173,108	168,164
Total shareholders' equity	295,718	289,857
Total liabilities and shareholders' equity	$ 715,417	$ 705,994