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Debt Obligations, net - Debt Covenants (Details) | Sep. 30, 2019 USD ($) | Sep. 30, 2017 USD ($)
--- | --- | ---
Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Unencumbered assets to unsecured indebtedness ratio (at least) | 1.2 |
Consolidated fixed charge coverage ratio | 1.5 |
Secured Debt | 2015 $350 million Revolving Credit Facility |  |
Debt Instrument [Line Items] |  |
Maximum borrowing capacity | $ 350,000,000.0 | $ 325,000,000.0
Borrowing base asset value ratio | 1.5 |
Cash flow to fixed charges ratio | 1.5 |
Secured Debt | 2016 Senior Term Loan |  |
Debt Instrument [Line Items] |  |
Collateral coverage ratio (at least) | 1.25 |

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- Definition Debt Instrument, Covenant, Cash Flow To Fixed Charges Ratio + References No definition available. + Details
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- Definition Represents the multiple of the minimum collateral coverage on outstanding borrowings required under the terms of the debt covenant. + References No definition available. + Details
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- Definition Represents the minimum ratio of encumbered assets to unsecured indebtedness required under the terms of the debt covenant. + References No definition available. + Details
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- 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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