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Commitment and Contingencies (Details) $ in Thousands		3 Months Ended	6 Months Ended	12 Months Ended
	Aug. 26, 2016 USD ($)	Dec. 31, 2016 Members	Dec. 31, 2017 USD ($) member	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($)	Dec. 15, 2016 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Repurchase units, number		0	0
Amended litigation settlement, amount						$ 1,938
Loss contingency, damages sought	$ 5,000			$ 3,268
Floor Financing, Repurchase Obligations			$ 165,763		$ 107,923
Financing Receivable, Gross			$ 923		$ 0

X

- Definition

Amended Litigation Settlement, Amount

+ References

No definition available.

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X

- Definition

Floor Financing, Repurchase Obligations

+ References

No definition available.

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Balance Type:	credit
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X

- Definition

Repurchase Units, Number

+ References

No definition available.

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- References

No definition available.

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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

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- Definition

Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(3))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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