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Borrowings (Interest Rates and Company Borrowings) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Interest and debt expense: |  |  |  |
Weighted average interest rate during the quarter | 2.43% | 1.73% | 2.34% | 1.73%
Interest rate at quarter end | 2.43% | 1.73% | 2.43% | 1.73%
Maximum amount outstanding during the quarter | $ 538,000 | $ 462,000 | $ 538,000 | $ 462,000
Average amount outstanding during the period | 516,946 | 431,815 | 508,350 | 400,896
Facility fees | $ 49 | $ 49 | $ 125 | $ 89

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- Definition The average effective interest rate during the reporting period. + References Reference 1: 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=64930785&loc=d3e28551-108399 Reference 2: 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 + Details
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- Definition Average amount borrowed under the credit facility during the period. + References No definition available. + Details
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- Definition Amount of the fees associated with providing collateral for the credit facility. + References No definition available. + Details
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- Definition The effective interest rate during the reporting period. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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