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CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $)
In Thousands
 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Consolidated Condensed Statements of Cash Flows (Unaudited) [Abstract]    
Net income $ 22,241 $ 6,647
Adjustments to reconcile net income to net cash used for operating activities:    
Depreciation and amortization 21,146 18,635
Deferred income tax provision 8,282 5,501
Noncash convertible debt conversion charge 16,135 0
Stock-based compensation 1,384 0
Issuance of treasury stock under 401(k) plan 268 250
Gain on acquisition (919) 0
Loss on senior note repurchase 0 (2,722)
(Increase) decrease in current assets, net of acquisitions:    
Accounts receivable (152,495) (50,386)
Inventories (34,525) (28,282)
Prepaid and other current assets (6,088) 3,269
Other assets (222) (493)
Increase (decrease) in current liabilities, net of acquisitions:    
Accounts payable 77,736 23,790
Other current liabilities 19,269 6,734
Other liabilities (2,844) 2,419
Net cash used for operating activities (30,632) (9,194)
Cash flows from investing activities:    
Capital expenditures (10,196) (11,735)
Acquisitions, net of cash acquired (99,118) 0
Other 1,395 43
Net cash used for investing activities (107,919) (11,692)
Cash flows from financing activities:    
Repurchase of senior unsecured notes (1,064) (49,744)
Term loan borrowing 14,148 0
Proceeds from exercise of stock options 477 240
Payment of financing fees 0 (186)
Dividends paid (387) (353)
Net cash provided by (used for) financing activities 13,174 (50,043)
Effect of exchange rate changes on cash 39 0
Net decrease in cash and cash equivalents (125,338) (70,929)
Cash and cash equivalents at beginning of period 239,500 229,182
Cash and cash equivalents at end of period $ 114,162 $ 158,253