Debt Instrument, Stated Rate Range, Maximum

No definition available.

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- Definition

Debt instrument, Stated Rate Range, Minimum

+ References

No definition available.

+ Details

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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-Publisher FASB
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-Section 50
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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+ Details

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Balance Type:	na
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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-Publisher FASB
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Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

+ Details

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- Details

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- Details

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Debt (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Debt (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term debt	$ 2,015.6	$ 2,507.1
Long-term Debt, Weighted Average Interest Rate, at Point in Time	4.73%	4.43%
Long-term Debt	$ 2,032.4
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	5.25%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	6.875%
Loss from early extinguishment of debt	$ (1.0)	$ 0.0	$ (32.7)
Revolving Credit Facility due 2019 [Member]
Debt Instrument [Line Items]
Long-term debt	0.0	430.0
Long-term Line of Credit	1,250.0
Letters of Credit Outstanding, Amount	2.9	0.3
Senior Notes Due 2020 [Member]
Debt Instrument [Line Items]
Long-term debt	0.0	51.7
Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 382.4	397.6
Debt Instrument, Interest Rate, Stated Percentage	6.875%
Extinguishment of Debt, Amount	$ 15.2
Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 500.0	500.0
Debt Instrument, Interest Rate, Stated Percentage	5.375%
Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 650.0	650.0
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 500.0	$ 500.0
Debt Instrument, Interest Rate, Stated Percentage		5.625%