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Components of Asset-Backed Securities Issued by Consolidated Securitization Entities Sponsored, Along With Other Selected Information (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |  |  |  |  |  |  |  |  | 9 Months Ended | 12 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |  | 9 Months Ended | 12 Months Ended |  |  | 9 Months Ended | 12 Months Ended |  |
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Mar. 31, 2013 | Sep. 30, 2014 Asset-backed Securities | Dec. 31, 2013 Asset-backed Securities | Sep. 30, 2014 Asset-backed Securities Certificates With Principal Value | Dec. 31, 2013 Asset-backed Securities Certificates With Principal Value | Sep. 30, 2014 Asset-backed Securities Interest Only Certificates | Dec. 31, 2013 Asset-backed Securities Interest Only Certificates | Sep. 30, 2014 Asset-backed Securities Sequoia Contract | Dec. 31, 2013 Asset-backed Securities Sequoia Contract | Sep. 30, 2014 Asset-backed Securities Sequoia Minimum | Dec. 31, 2013 Asset-backed Securities Sequoia Minimum | Sep. 30, 2014 Asset-backed Securities Sequoia Maximum | Dec. 31, 2013 Asset-backed Securities Sequoia Maximum | Sep. 30, 2014 Asset-backed Securities Sequoia Certificates With Principal Value | Dec. 31, 2013 Asset-backed Securities Sequoia Certificates With Principal Value | Sep. 30, 2014 Asset-backed Securities Sequoia Interest Only Certificates | Dec. 31, 2013 Asset-backed Securities Sequoia Interest Only Certificates | Sep. 30, 2014 Asset-backed Securities Residential Resecuritization Contract | Dec. 31, 2013 Asset-backed Securities Residential Resecuritization Contract | Sep. 30, 2014 Asset-backed Securities Residential Resecuritization Certificates With Principal Value | Dec. 31, 2013 Asset-backed Securities Residential Resecuritization Certificates With Principal Value | Sep. 30, 2014 Asset-backed Securities Commercial Securitization Contract | Dec. 31, 2013 Asset-backed Securities Commercial Securitization Contract | Sep. 30, 2014 Asset-backed Securities Commercial Securitization Certificates With Principal Value | Dec. 31, 2013 Asset-backed Securities Commercial Securitization Certificates With Principal Value
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal value |  |  |  | $ 1,667,439 | $ 1,956,951 | $ 2,318 | $ 3,400 |  |  |  |  |  |  | $ 1,495,988 | $ 1,708,324 | $ 2,318 | $ 3,400 |  |  | $ 56,508 | $ 94,934 |  |  | $ 114,943 | $ 153,693
Unamortized discount |  | (13,555) | (17,389) |  |  |  |  | (13,555) | (17,389) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total ABS Issued |  | $ 1,656,202 | $ 1,942,962 |  |  |  |  | $ 1,484,751 | $ 1,694,335 |  |  |  |  |  |  |  |  | $ 56,508 | $ 94,934 |  |  | $ 114,943 | $ 153,693 |  |
Weighted average interest rates, by series |  |  |  |  |  |  |  |  |  | 0.08% | 0.24% | 4.26% | 4.23% |  |  |  |  | 2.16% | 2.21% |  |  | 5.62% | 5.62% |  |
Stated maturities | 2018 |  |  |  |  |  |  |  |  | 2014 | 2014 | 2047 | 2047 |  |  |  |  | 2046 | 2046 |  |  | 2018 | 2018 |  |
Number of series |  |  |  |  |  |  |  | 24 | 24 |  |  |  |  |  |  |  |  | 1 | 1 |  |  | 1 | 1 |  |

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 4: 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) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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