Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 30,369	$ 25,247
Receivables, net	354,712	328,590
Inventories	189,285	175,929
Deferred tax asset	13,230	13,224
Prepaid expenses and other current assets	10,269	10,828
Total current assets	597,865	553,818
Property, plant and equipment, net	240,719	231,055
Goodwill	75,081	71,970
Other intangible assets, net	20,028	20,850
Other assets	8,793	9,144
Total assets	942,486	886,837
LIABILITIES AND STOCKHOLDERS' EQUITY
Short-term debt	1,548	2,232
Accounts payable	106,277	97,168
Accrued liabilities	44,800	47,443
Total current liabilities	152,625	146,843
Long-term debt, less current portion	225,874	189,876
Deferred tax liability	46,941	46,844
Other noncurrent liabilities	5,498	5,428
Total liabilities	430,938	388,991
Commitments and contingencies (Note 7)
Common stock, $0.01 par value, 200,000,000 shares authorized and 94,551,917 and 94,497,526 shares issued, respectively	946	945
Paid-in capital	478,771	477,204
Accumulated other comprehensive income	4,784	789
Retained earnings	50,617	34,983
Treasury stock, at cost; 3,726,258 and 2,803,987 shares, respectively	(23,570)	(16,075)
Total stockholders' equity	511,548	497,846
Total liabilities and stockholders' equity	$ 942,486	$ 886,837