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Senior Notes (Details) | 12 Months Ended
--- | ---
Dec. 31, 2015 USD ($) senior_note
Debt Disclosure [Abstract] |
Number of senior notes outstanding | senior_note | 3
2022 Senior Notes |
Debt Instrument |
Senior Notes Redeemed, Canceled and Retired | $ | $ 140,000,000.0
Stated interest rate | 5.25%
Debt Instrument, Redemption Price, Percentage | 100.00%

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + 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)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: 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 + Details
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