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Guarantees and Indemnifications Guarantees (Details) - USD ($) $ in Thousands | Sep. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Debt Instrument [Line Items] |  |
Senior notes | $ 228,769 | $ 228,469
Convertible senior subordinated notes due 2017 | 57,500 | 57,500
Convertible senior subordinated notes due 2018 | 86,250 | 86,250
Total of Loans Covered by Guarantees | 18,900 | 33,400
Total of Guaranteed Loans Inquired About | 7,200 | 9,100
Total Loans Indemnified to third parties | 2,200 | 2,000
Loan Repurchase Guarantee Liability | $ 2,200 | $ 2,900
2018 Senior Notes [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Interest Rate, Stated Percentage | 8.625% |
2017 Convertible Senior Notes [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Interest Rate, Stated Percentage | 3.25% |
2018 Convertible Senior Notes [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Interest Rate, Stated Percentage | 3.00% |
Face Value [Member] |  |
Debt Instrument [Line Items] |  |
Senior notes | $ 230,000 |

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- Definition Maximum potential amount of future payments the guarantor could be required to make under the Company's subsidiary loan repurchase guarantees. + References No definition available. + Details
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- Definition The total of all loans indemnified to third party insurers relating to certain repurchase agreements. + References No definition available. + Details
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- Definition Total of loans covered by the guarantees discussed for which inquiries were made by the purchasers of the loans. + References No definition available. + Details
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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 Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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