The percentage of the face amount of the debt instrument applicable to the change in ownership.

No definition available.

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- Definition

Debt instrument, percentage of redemption price, redemption date, latest for redemption at face amount

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399

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Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (b)
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

Indebtedness divided by net capital.

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
Balance Type:	na
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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Details

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Debt (Details Textual)	12 Months Ended
Debt (Details Textual)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2020	Mar. 12, 2019 USD ($)	May 03, 2016 USD ($)	Mar. 23, 2016 USD ($)
Debt [Line Items]
Interest Expense, Debt	$ 62,210,000	$ 64,420,000	$ 62,001,000
Amortization of Debt Issuance Costs and Discounts	3,346,000	3,193,000	$ 3,022,000
Amount of letters of credit outstanding	4,836,000	4,701,000
6.50% Notes due 2024
Debt [Line Items]
Senior Notes	$ 900,000,000	$ 900,000,000					$ 900,000,000
Wells Fargo Capital Finance, LLC \| Revolving Credit Facility [Member]
Debt [Line Items]
Maximum borrowing capacity						$ 325,000,000
Ratio of Indebtedness to Net Capital						5.5
Senior Notes \| 6.50% Notes due 2024
Debt [Line Items]
Interest rate, stated percentage	6.50%						6.50%
Debt Instrument, Percentage Of Redemption Price, Change In Ownership Control	101.00%
Debt Instrument, Percentage Of Redemption Price, Redemption Date, Latest For Redemption At Face Amount	100.00%
Line of Credit [Member] \| Amendment, Credit Agreement [Member]
Debt [Line Items]
Maximum borrowing capacity	$ 250,000,000				$ 250,000,000
Ratio of Indebtedness to Net Capital					6.25
Forecast \| Line of Credit [Member] \| Amendment, Credit Agreement [Member]
Debt [Line Items]
Ratio of Indebtedness to Net Capital				5.5
Non-Prime Rate and Prime Rate on European Advances [Member] \| Wells Fargo Capital Finance, LLC \| Revolving Credit Facility [Member]
Debt [Line Items]
Interest rate, stated percentage					0.75%
Base Rate [Member] \| Wells Fargo Capital Finance, LLC \| Revolving Credit Facility [Member]
Debt [Line Items]
Interest rate, stated percentage					1.50%