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Borrowings Schedule of Redemption Prices (Details) - Secured Debt [Member]	3 Months Ended
	Mar. 31, 2018
2018 [Member]
Debt Instrument [Line Items]
Redemption price	106.2812%
2019 [Member]
Debt Instrument [Line Items]
Redemption price	104.188%
2020 [Member]
Debt Instrument [Line Items]
Redemption price	102.094%
2021 and Thereafter [Member]
Debt Instrument [Line Items]
Redemption price	100.00%

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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

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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=75038535&loc=d3e64711-112823

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