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Debt and Standby Letter of Credit Facilities (Tables) | 12 Months Ended
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Dec. 31, 2016
Debt Disclosure [Abstract] |
Schedule of debt outstanding | White Mountains’s debt outstanding as of December 31, 2016 and 2015 consisted of the following:
|  | December 31, |  | Effective |  | December 31, |  | Effective
Millions |  | 2016 |  | Rate (1) |  | 2015 |  | Rate (1)
WTM Bank Facility |  | $ | — |  |  | N/A |  | $ | 50.0 |  |  | 3.9%
OneBeacon Bank Facility |  | — |  |  | N/A |  | — |  |  | N/A
OBH Senior Notes, at face value |  | 275.0 |  |  | 4.7% |  | 275.0 |  |  | 4.7%
Unamortized original issue discount and debt issuance costs |  | (1.8 | ) |  |  |  | (2.1 | ) |  |
OBH Senior Notes, carrying value |  | 273.2 |  |  |  |  | 272.9 |  |  |
MediaAlpha Bank Facility |  | 12.9 |  |  | 5.7% |  | 15.0 |  |  | 5.5%
Unamortized issuance cost |  | (.2 | ) |  |  |  | (.3 | ) |  |
MediaAlpha Bank Facility, carrying value |  | 12.7 |  |  |  |  | 14.7 |  |  |
Total debt |  | $ | 285.9 |  |  |  |  | $ | 337.6 |  |  |
Schedule of contractual repayments of debt | A schedule of contractual repayments of White Mountains’s debt as of December 31, 2016, follows:
Millions |  | December 31, 2016
Due in one year or less |  | $ | 5.0 |
Due in two to three years |  | 7.9 |
Due in four to five years |  | — |
Due after five years |  | 275.0 |
Total |  | $ | 287.9 |

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- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + 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) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: 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=64930739&loc=d3e28878-108400 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399 Reference 9: 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=64930785&loc=d3e28551-108399 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644 + Details
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