Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Assets
Cash and cash equivalents	$ 9,090	$ 3,186
Accounts receivable, net	152,668	115,288
Inventories, net (includes LIFO debit of $2,972 as of September 30, 2014 and $3,572 as of December 31, 2013)	329,432	286,371
Prepaid expenses and other	9,419	12,786
Total current assets	500,609	417,631
Property and equipment, at cost	368,089	361,368
Accumulated depreciation	(185,400)	(170,484)
Net property and equipment	182,689	190,884
Goodwill	40,787	40,787
Intangible assets, net	33,868	34,535
Other long-term assets	14,735	13,512
Total assets	772,688	697,349
Liabilities
Current portion of long-term debt	3,530	13,090
Accounts payable	121,382	126,012
Accrued payroll	9,973	10,723
Other accrued liabilities	15,362	15,808
Total current liabilities	150,247	165,633
Credit facility revolver	269,475	146,075
Long-term debt		40,104
Other long-term liabilities	14,447	13,445
Deferred income taxes	30,716	33,476
Total liabilities	464,885	398,733
Shareholders' Equity
Preferred stock	0	0
Common stock	125,974	124,118
Accumulated other comprehensive loss	(274)	(437)
Retained earnings	182,103	174,935
Total shareholders' equity	307,803	298,616
Total liabilities and shareholders' equity	$ 772,688	$ 697,349