Commitments and Contingencies Minimum Future Lease Payments for Non-Cancelable Leases (Details) - USD ($)	Jul. 25, 2016	Mar. 31, 2018
Disclosure Minimum Future Lease Payments For Non Cancelable Leases [Abstract]
Remainder of 2018		$ 13,508,000
2019		15,061,000
2020		11,056,000
2021		9,270,000
2022		7,107,000
Thereafter		10,537,000
Total minimum lease payments		$ 66,539,000
Maximum \| SDC
Other Commitments [Line Items]
Loan facility	$ 30,000,000.0

Disclosure - Minimum Future Lease Payments for Non-Cancelable Leases [Abstract]

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Operating Leases, Future Minimum Payments Due, Remainder of Period

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Reflects the amount of cash required to fully fund agreements to provide advances to borrowers and lessees at stated interest rates.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 825
-Section 50
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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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-Paragraph 2
-Subparagraph (a)
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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth 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 required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due 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.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due 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.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after 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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