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Auction Rate Securities - Additional Information (Detail) $ in Millions | 6 Months Ended
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Dec. 31, 2015 USD ($)
Schedule of Available-for-sale Securities [Line Items] |
Auction rate securities with fair value having no stated maturity | $ 1.8
Maturity period one | 2018
Auction Rate Securities Investments [Member] |
Schedule of Available-for-sale Securities [Line Items] |
ARS investments redeemed at par value | $ 0.6
Auction Rate Securities with fair value maturing from 2016 to 2018 | $ 12.4

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- Definition Auction rate securities with fair value having no stated maturity. + References No definition available. + Details
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- Definition Amount of available-for-sale debt securities at fair value that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the fair value over several maturity groupings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27198-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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- Definition The aggregate value of securities held, which were categorized neither as trading nor held-to-maturity, for which the interest rate reset through an auction process, that failed to be liquidated through auction, and which were sold at par value during the period. + References No definition available. + Details
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