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Long Term Debt - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 1 Months Ended | 9 Months Ended
--- | --- | --- | ---
Dec. 31, 2013 | Jun. 30, 2014 MEGA Brands | May 31, 2014 2014 Senior Notes due May 2019 | Sep. 30, 2014 2014 Senior Notes due May 2019
Debt Instrument [Line Items] |  |  |  |
Principal of debt instrument |  |  | $ 500.0 |
Debt instrument maturity date |  |  | May 06, 2019 |
Issuance date |  |  | 2014-05 |
Interest rate |  |  | 2.35% |
Interest terms |  |  |  | Interest on the 2014 Senior Notes is payable semi-annually on May 6 and November 6 of each year, beginning November 6, 2014.
Redemption terms |  |  |  | Mattel may redeem all or part of the 2014 Senior Notes at any time or from time to time at its option, at a redemption price equal to the greater of (i) 100% of the principal amount of the notes being redeemed plus accrued and unpaid interest to, but excluding the redemption date, and (ii) a "make-whole" amount based on the yield of a comparable US Treasury security plus 12.5 basis points.
Redemption price option one |  |  | 100.00% |
Redemption price option two |  |  | 0.125% |
Repayment of long-term borrowings assumed |  | 44.6 |  |
Repayment of Medium-term notes | $ 50.0 |  |  |

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- Definition Description of a feature that permits the issuer of the debt to repay or convert it before the stated maturity date (early retirement date). The description may include such items as the call price, the period that the issuer can call the debt, including the earliest call date, and other significant terms of the call feature, which may include the debt holders' ability to convert the debt to equity if the call option is exercised and contingent events that trigger the issuer's ability to call the debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 Reference 3: 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)(5)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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