Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash Flows from Operating Activities:
Net Income	$ 124,009	$ 98,763
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	82,234	73,145
Deferred income tax provision (benefit)	(5,237)	3,824
Gain on sales of property and equipment	(163)	(960)
Noncash compensation	8,225	5,707
Distributions from unconsolidated affiliates greater than earnings	4,686	1,053
Excluding the effects of acquisitions, increase (decrease) in cash from:
Accounts receivable	(42,584)	(64,468)
Inventory	(35,046)	(23,217)
Other operating assets	(3,000)	(585)
Currency translation effect on working capital	(3,071)	2,620
Current liabilities	56,053	(14,637)
Other long-term liabilities	295	4,244
Total adjustments to net income	62,392	(13,274)
Net Cash Provided by Operating Activities	186,401	85,489
Cash Flows from Investing Activities:
Purchases of property and equipment	(151,591)	(108,204)
Business acquisitions, net of cash acquired	(9,260)	(59,558)
Dispositions of property and equipment and equity investment	444	3,997
Net Cash Used in Investing Activities	(160,407)	(163,765)
Cash Flows from Financing Activities:
Net payments of revolving credit facility, including new loan costs	3,955	0
Excess tax benefits from stock-based compensation	4,523	255
Cash dividends	(35,668)	(16,280)
Purchases of treasury stock	(19,358)	0
Net Cash Provided by (Used in) Financing Activities	(46,548)	(16,025)
Net Increase (Decrease) in Cash and Cash Equivalents	(20,554)	(94,301)
Cash and Cash Equivalents-Beginning of Period	106,142	245,219
Cash and Cash Equivalents-End of Period	$ 85,588	$ 150,918