Long-Term Debt (8.5% Junior Priority Secured Notes) (Details) - Junior subordinated debt [Member] - 8.500% junior secured priority notes due 2022 [Member] - USD ($) $ in Millions	Jun. 26, 2014	Dec. 31, 2016
Debt Instrument [Line Items]
Debt instrument, face amount	$ 250.0
Debt interest rate (percent)	8.50%	8.50%
Debt redemption price, maximum percentage of principal amount redeemable (percent)	35.00%
Debt redemption price, change of control (percentage)	101.00%
Period one [Member]
Debt Instrument [Line Items]
Debt redemption price (percentage)	108.50%
Period two [Member]
Debt Instrument [Line Items]
Debt redemption price (percentage)	106.375%
Period three [Member]
Debt Instrument [Line Items]
Debt redemption price (percentage)	104.25%
Period four [Member]
Debt Instrument [Line Items]
Debt redemption price (percentage)	102.125%
Period five [Member]
Debt Instrument [Line Items]
Debt redemption price (percentage)	100.00%

Debt Instrument, Redemption Price, Maximum Percentage of Principal Amount Redeemable

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- Definition

Debt Instrument, Redemption Price, Percentage, Change of Control

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: 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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- Definition

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

+ 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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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