Reinsurance (Details) (USD $)	3 Months Ended
Mar. 31, 2014 Company	Mar. 31, 2013	Dec. 31, 2013
Reinsurance [Abstract]
Percentage of quota share (in hundredths)	30.00%
Percentage of ceding commission (in hundredths)	20.00%
Percentage quota share in addendum (in hundredths)	40.00%
Profit commission receivable	$ 24,600,000
Number of other mortgage insurers agreeing to similar CFPB settlements	3
Period of existing captive reinsurance agreement	10 years
Reinsurance recoverable on loss reserves related to captive agreements	55,000,000		64,000,000
Fair value of trust fund assets under captive agreements	217,000,000		226,000,000
Fair value of trust fund assets under captive agreements, no reinsurance recoverable on loss reserves	23,000,000		23,000,000
Premiums Written and Earned [Abstract]
Ceded premiums written, net of profit commission	26,620,000	6,598,000
Ceded premiums earned, net of profit commission	24,562,000	6,407,000
Ceded losses incurred	6,384,000	10,913,000
Ceding commissions	$ 9,133,000	$ 537,000

Amount of losses incurred ceded to other entities.

No definition available.

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- Definition

Amount of earned premiums ceded to other entities.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

The fair value of trust fund assets under the entity's captive agreements that do not have reinsurance recoverable on loss reserves.

+ References

No definition available.

+ Details

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- Definition

Number of other mortgage insurers agreeing to similar CFPB settlements.

+ References

No definition available.

+ Details

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- Definition

Represents percentage of ceding commission under the structure of reinsurance agreement during the reporting period.

+ References

No definition available.

+ Details

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- Definition

Represents percentage of quota share under the structure of reinsurance agreement during the reporting period.

+ References

No definition available.

+ Details

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- Definition

Represents percentage of quota share under the structure of reinsurance agreement addendum during the reporting period.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

Represents period under which an entity will not enter into any new captive reinsurance agreement or reinsure any new loans under existing reinsurance agreements.

+ References

No definition available.

+ Details

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- Definition

The amount of profit commission receivable under the structure of reinsurance agreement accrued for as of the end of the reporting period.

+ References

No definition available.

+ Details

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- Definition

The known and estimated amount recoverable, related to captive agreements, as of the balance sheet date from reinsurers for claims paid or incurred by the ceding insurer and associated claims settlement expenses, including estimated amounts for claims incurred but not reported, and policy benefits, net of any related valuation allowance.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

The total fair value of the trust fund assets under the entity's captive agreements.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Total consideration paid and payable to reinsurers during the period pursuant to terms of reinsurance arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 17

-Article 12

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 605

-Section 50

-Paragraph 1

-Subparagraph (b),(c)(2)

-URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 113

-Paragraph 27

-Subparagraph a, b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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- Definition

Total fees and commissions earned from providing services such as leasing of space or maintaining: (1) depositor accounts; (2) transfer agent; (3) fiduciary and trust; (4) brokerage and underwriting; (5) mortgage; (6) credit cards; (7) correspondent clearing; and (8) other such services and activities performed for others.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.13)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 13

-Article 9

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Section 563c.102

-Paragraph 13

-Chapter V

-Subsection II

-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

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- Details

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- Details

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