XML 103 R82.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Long-Term Incentive Compensation (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 4,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 3,649,958
Performance Shares [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Performance Award Scheduled Vesting Period | 3 years
Stock Granted, Value, Share-based Compensation, Gross | $ 2,920
Share Based Compensation Grant | 49,041
Minimum [Member] | Performance Shares [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Performance Award Payout | 0.00%
Maximum [Member] | Performance Shares [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Performance Award Payout | 200.00%

X
- Definition Grant target value, before forfeitures, of a performance grant to individuals under the Long Term Incentive Plan. Grant is split 50% as performance based restricted stock units and 50% deferred cash. + References No definition available. + Details
Name: | ambc_DeferredCompensationArrangementwithIndividualGrantAwardValue
Namespace Prefix: | ambc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The percentage payout of the performance award grant. This is presented as a percentage of the initial target grant amount as specified in the award agreement. + References No definition available. + Details
Name: | ambc_PerformanceAwardPayout
Namespace Prefix: | ambc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Scheduled vesting period from initial grant of performance based awards. + References No definition available. + Details
Name: | ambc_PerformanceAwardScheduledVestingPeriod
Namespace Prefix: | ambc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares initially granted to participants in accordance with deferred compensation plan. + References No definition available. + Details
Name: | ambc_ShareBasedCompensationGrant
Namespace Prefix: | ambc_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant