CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Operating activities:
Net income	$ 95,826	$ 46,797	$ 200,056	$ 110,186
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	56,257	55,398	111,003	111,670
Equity-based compensation	3,812	3,329	7,522	6,098
Deferred income taxes	9,028	10,417	21,963	18,885
Loss on disposal of property, plant and equipment	139	550	96	1,506
Changes in certain assets and liabilities:
Accounts receivable	34,536	21,423	(227,212)	(201,717)
Inventories	(9,026)	(117,013)	(81,133)	(165,071)
Other assets	2,315	(9,529)	5,697	(8,589)
Accounts payable	2,750	(22,707)	96,925	95,510
Income taxes receivable/payable	(17,119)	60,416	28,320	97,549
Accrued expenses	(12,521)	(29,730)	6,697	26,066
Net cash provided by operating activities	165,997	19,351	169,934	92,093
Investing activities:
Purchases of property, plant and equipment	(34,976)	(40,960)	(53,669)	(71,644)
Other investing activities	2,142	977	999	1,481
Net cash used in investing activities	(32,834)	(39,983)	(52,670)	(70,163)
Financing activities:
Issuance of current and long-term debt		2,002	5,126	546,552
Repayment of current and long-term debt	(491)	(4,476)	(7,816)	(355,806)
Debt issuance costs		(169)		(6,707)
Proceeds from the exercise of stock options, including related tax effect	4,569	2,984	12,865	6,438
Contributions from noncontrolling investors, net	1,470	2,611	1,887	2,611
Dividends paid	(21,830)	(16,233)	(38,148)	(32,433)
Net cash provided by (used in) financing activities	(16,282)	(13,281)	(26,086)	160,655
Increase (decrease) in cash and equivalents	116,881	(33,913)	91,178	182,585
Cash and equivalents at beginning of period	160,810	225,506	186,513	9,008
Cash and equivalents at end of period	277,691	191,593	277,691	191,593
Supplemental disclosure information:
Cash paid for interest	71,047	71,993	86,157	75,762
Cash paid (received) for federal and state income taxes, net	$ 60,455	$ (41,997)	$ 61,975	$ (55,007)

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 1
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 7
-Footnote 1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3044-108585

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 8, 9
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e6676-107765

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash
-URI http://asc.fasb.org/extlink&oid=6506951

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 7, 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash Equivalents
-URI http://asc.fasb.org/extlink&oid=6507016