Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.13,16)

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- Definition

Carrying value as of the balance sheet date of the sum of short-term debt and current maturities of long-term debt and capital lease obligations, which are due within one year (or one business cycle if longer).

+ 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 210.5-02.19,20)

-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 19

-Article 5

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- Definition

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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- Definition

Increase of additional borrowings on existing and new debt instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

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-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph f

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- Definition

Interest rate stated in the contractual debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of debt outstanding by type or by instrument at that time.

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No definition available.

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- Definition

Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year or the normal operating cycle, if longer plus capital lease obligations due to be paid more than one year after the balance sheet date.

+ 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 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section H

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- Definition

Represents the time period in which if a repricing event were to occur, the Company would be required to pay a specified fee.

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No definition available.

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- Definition

The amount of additional borrowings available, if a specified percentage of the proceeds will be used to repay the term loans under the 2011 credit agreement.

+ References

No definition available.

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- Definition

Represent the percentage of proceeds from debt offering, if used for the repayment of term loans, would allow for additional flexibility to incur additional borrowings.

+ References

No definition available.

+ Details

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- Definition

Represents the amount of debt redeemed as a percentage of the principal amount outstanding.

+ References

No definition available.

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- Definition

Represents the redemption price of the debt instrument as a percentage of the principal amount.

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No definition available.

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- Definition

Represents the fee, expressed as a percentage of the aggregate principal amount, that must be paid should a repricing event occur.

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Debt (Details) (USD $)			0 Months Ended						0 Months Ended				0 Months Ended	3 Months Ended	0 Months Ended
Debt (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012	Mar. 22, 2013 2011 Credit Agreement	Mar. 31, 2013 2011 term loan A	Dec. 31, 2012 2011 term loan A	Mar. 31, 2013 2011 term loan B	Mar. 22, 2013 2011 term loan B	Dec. 31, 2012 2011 term loan B	Mar. 22, 2013 2011 term loan B Maximum	Nov. 21, 2012 9.875% senior notes	Mar. 31, 2013 9.875% senior notes	Dec. 31, 2012 9.875% senior notes	Mar. 27, 2013 8.500% senior notes	Mar. 31, 2013 8.500% senior notes	Mar. 27, 2013 8.500% senior notes Prior to April 15, 2016	Mar. 27, 2013 8.500% senior notes Prior to April 15, 2017	Mar. 27, 2013 8.500% senior notes During the twelve months commencing April 15, 2017	Mar. 27, 2013 8.500% senior notes During the twelve months commencing April 15, 2018	Mar. 27, 2013 8.500% senior notes Period commencing April 15, 2019	Mar. 27, 2013 8.500% senior notes Maximum Prior to April 15, 2016	Mar. 31, 2013 Other	Dec. 31, 2012 Other
Debt instrument
Total debt	$ 2,610,982,000	$ 2,416,165,000		$ 656,566,000	$ 756,974,000	$ 978,178,000		$ 1,127,770,000			$ 496,582,000	$ 496,510,000		$ 450,000,000							$ 29,656,000	$ 34,911,000
Less current debt	(17,398,000)	(18,793,000)
Total long term debt	2,593,584,000	2,397,372,000
Weighted average stated interest rate (as a percent)				4.80%		5.75%					9.88%			8.50%
Debt agreements
Face amount											500,000,000
Interest rate (as a percent)										9.875%	9.875%		8.50%	8.50%
Percentage of proceeds from debt offering, if used to repay term loans would allow for additional flexibility to incur additional borrowings			100.00%
Increase in additional borrowings available, provided that specified percentage of the proceeds will be used to repay the term loans under the 2011 credit agreement			250,000,000
Repricing event, term									6 months
Fee to be paid should a repricing event occur (as a percent)							1.00%
Debt issued										$ 500,000,000			$ 450,000,000
Aggregate principal of debt redeemed (as a percent)																				35.00%
Redemption price of debt instrument (as a percent)														101.00%	108.50%	100.00%	104.25%	102.125%	100.00%