Debt Instrument, Covenant, Annual Coverage Ratio, Minimum

No definition available.

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- Definition

Required asset coverage ratio

+ References

No definition available.

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- Definition

Debt Instrument, Covenant Compliance, Number of Consecutive Fiscal Periods

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No definition available.

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- Definition

Represents the ratio of current assets to current liabilities.

+ References

No definition available.

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- Definition

Number of institutional investors that purchased debt in a private placement offering.

+ References

No definition available.

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- Definition

Number of tranches in which long-term debt is issued.

+ References

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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- Definition

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

+ References

+ Details

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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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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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- Definition

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

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- Definition

The effective interest rate during the reporting period.

+ References

+ Details

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- 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

+ Details

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Debt and Credit Agreements - Narrative (Details)		1 Months Ended				3 Months Ended	12 Months Ended
Debt and Credit Agreements - Narrative (Details)	Apr. 17, 2015	May 31, 2016 USD ($)	Sep. 30, 2014 USD ($) Investor Tranche	Dec. 31, 2010 USD ($) Investor Tranche	Jul. 31, 2008 USD ($) Investor Tranche	Jun. 30, 2016 USD ($)	Dec. 31, 2018 USD ($) fiscal_period	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Apr. 19, 2016 USD ($)
Debt Instrument [Line Items]
2020							$ 87,000,000
2021							188,000,000
2023							62,000,000
Repayments of debt							455,000,000	$ 0	$ 587,000,000
Loss on repurchase of debt							0	0	$ 4,709,000
Deferred financing costs capitalized							$ 4,896,000	$ 6,109,000
6.51% weighted-average senior notes
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)							6.51%	6.51%
Long-term debt including unamortized debt issuance costs							$ 124,000,000	$ 361,000,000
9.78% senior notes
Debt Instrument [Line Items]
Interest rate (as a percent)							9.78%	9.78%
Long-term debt including unamortized debt issuance costs							$ 0	$ 67,000,000
5.58% weighted-average senior notes
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)							5.58%	5.58%
Long-term debt including unamortized debt issuance costs							$ 175,000,000	$ 175,000,000
3.65% weighted-average senior notes
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)							3.65%	3.65%
Long-term debt including unamortized debt issuance costs							$ 925,000,000	$ 925,000,000
Revolving credit facility
Debt Instrument [Line Items]
Remaining borrowing capacity on line of credit							$ 1,800,000,000			$ 1,700,000,000
Minimum required asset coverage ratio							1.75
Fiscal quarters for reduction in coverage ratio \| fiscal_period							4
Minimum required annual coverage ratio							2.8
Maximum borrowing capacity on line of credit										$ 3,200,000,000.0
Minimum current ratio							1.0
Long-term debt including unamortized debt issuance costs							$ 7,000,000	$ 0
Interest rate during period							6.30%		2.30%
Senior Notes
Debt Instrument [Line Items]
Minimum required asset coverage ratio							1.75
Fiscal quarters for reduction in coverage ratio \| fiscal_period							4
Minimum required annual coverage ratio							2.8
Senior Notes \| 6.51% weighted-average senior notes
Debt Instrument [Line Items]
Repayments of debt							$ 301,000,000
Principal					$ 425,000,000
Number of institutional investors \| Investor					41
Number of debt tranches \| Tranche					3
Senior Notes \| 5.58% weighted-average senior notes
Debt Instrument [Line Items]
Principal				$ 175,000,000
Number of institutional investors \| Investor				8
Number of debt tranches \| Tranche				3
Senior Notes \| 3.65% weighted-average senior notes
Debt Instrument [Line Items]
Principal			$ 925,000,000
Number of institutional investors \| Investor			24
Number of debt tranches \| Tranche			3
Minimum \| Revolving credit facility
Debt Instrument [Line Items]
Unused capacity fee percentage	0.30%
Maximum \| Revolving credit facility
Debt Instrument [Line Items]
Unused capacity fee percentage	0.50%
Senior Notes \| 6.51% weighted-average senior notes
Debt Instrument [Line Items]
Amount of principal repurchased		$ 64,000,000
Repayments of debt		68,300,000
Loss on repurchase of debt						$ 4,700,000
Tranche 1 \| Senior Notes \| 6.51% weighted-average senior notes
Debt Instrument [Line Items]
Principal					$ 245,000,000
Term					10 years
Interest rate (as a percent)					6.44%
Tranche 1 \| Senior Notes \| 5.58% weighted-average senior notes
Debt Instrument [Line Items]
Principal				$ 88,000,000
Term				10 years
Interest rate (as a percent)				5.42%
Tranche 1 \| Senior Notes \| 3.65% weighted-average senior notes
Debt Instrument [Line Items]
Principal			$ 100,000,000
Term			7 years
Interest rate (as a percent)			3.24%
Tranche 1 \| Senior Notes \| 6.51% weighted-average senior notes
Debt Instrument [Line Items]
Amount of principal repurchased		8,000,000
Tranche 2 \| Senior Notes \| 6.51% weighted-average senior notes
Debt Instrument [Line Items]
Principal					$ 100,000,000
Term					12 years
Interest rate (as a percent)					6.54%
Tranche 2 \| Senior Notes \| 5.58% weighted-average senior notes
Debt Instrument [Line Items]
Principal				$ 25,000,000
Term				12 years
Interest rate (as a percent)				5.59%
Tranche 2 \| Senior Notes \| 3.65% weighted-average senior notes
Debt Instrument [Line Items]
Principal			$ 575,000,000
Term			10 years
Interest rate (as a percent)			3.67%
Tranche 2 \| Senior Notes \| 6.51% weighted-average senior notes
Debt Instrument [Line Items]
Amount of principal repurchased		13,000,000
Tranche 3 \| Senior Notes \| 6.51% weighted-average senior notes
Debt Instrument [Line Items]
Principal					$ 80,000,000
Term					15 years
Interest rate (as a percent)					6.69%
Tranche 3 \| Senior Notes \| 5.58% weighted-average senior notes
Debt Instrument [Line Items]
Principal				$ 62,000,000
Term				15 years
Interest rate (as a percent)				5.80%
Tranche 3 \| Senior Notes \| 3.65% weighted-average senior notes
Debt Instrument [Line Items]
Principal			$ 250,000,000
Term			12 years
Interest rate (as a percent)			3.77%
Tranche 3 \| Senior Notes \| 6.51% weighted-average senior notes
Debt Instrument [Line Items]
Amount of principal repurchased		$ 43,000,000
LIBOR \| Minimum \| Revolving credit facility
Debt Instrument [Line Items]
Basis spread on variable rate							0.50%
LIBOR \| Maximum \| Revolving credit facility
Debt Instrument [Line Items]
Basis spread on variable rate							2.25%