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Short-Term Debt - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2016 | Aug. 31, 2016
Short-term Debt [Line Items] |  |  |
Loss on extinguishment of debt | $ 1.3 | $ 1.3 |
Term Loan [Member] |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt |  |  | $ 200.0
Term loan maturity date |  | Aug. 31, 2017 |

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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + 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 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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