Disposal Group, Not Discontinued Operation, Reduction In Reinsurance Recoverables, Unpaid And Paid Losses

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, after effects of reinsurance, of increase (decrease) in the liability for unpaid claims and claims adjustment expense.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount, after valuation allowance, recoverable under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, policy benefits and policy reserves. Excludes premiums paid under reinsurance contracts.

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- Definition

The discount rate used to reduce the estimated amount of loss reserves on short-duration contracts to present value.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount, after effects of reinsurance, of expense for claims incurred in the current reporting period and related claims settlement costs.

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- Definition

Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs.

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- Definition

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, acquired in a business combination.

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RESERVE FOR LOSSES AND LOSS EXPENSES (Details 2) - USD ($) $ in Thousands			3 Months Ended		9 Months Ended
	Apr. 01, 2017	Feb. 13, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Mar. 20, 2017	Mar. 19, 2017	Dec. 31, 2016
Additional Information Related to Net Incurred Losses [Line Items]
Current year					$ 2,591,135	$ 1,887,715
Net favorable (adverse) prior year reserve development			$ 47,768	$ 76,019	143,495	224,131
Reinsurance recoverable on unpaid and paid losses			2,360,821		2,360,821				$ 2,334,922
Short Tail Lines Insurance And Reinsurance Business [Member]
Additional Information Related to Net Incurred Losses [Line Items]
Net favorable (adverse) prior year reserve development			5,000	41,000	41,000	116,000
Professional Lines Insurance And Reinsurance Business [Member]
Additional Information Related to Net Incurred Losses [Line Items]
Net favorable (adverse) prior year reserve development			9,000	12,000	54,000	28,000
Reinsurance Credit and Surety [Member]
Additional Information Related to Net Incurred Losses [Line Items]
Net favorable (adverse) prior year reserve development			17,000		18,000
Liability Reinsurance Business [Member]
Additional Information Related to Net Incurred Losses [Line Items]
Net favorable (adverse) prior year reserve development				10,000	40,000	32,000
Liability Insurance Business [Member]
Additional Information Related to Net Incurred Losses [Line Items]
Net favorable (adverse) prior year reserve development					(6,000)
Motor Reinsurance Business [Member]
Additional Information Related to Net Incurred Losses [Line Items]
Net favorable (adverse) prior year reserve development			$ 16,000	$ 7,000	(4,000)	40,000
Ogden rate							(0.75%)	2.50%
Catastrophe and Weather-related Events [Member]
Additional Information Related to Net Incurred Losses [Line Items]
Current year					$ 702,000	$ 145,000
Discontinued Operations, Disposed of by Means Other than Sale [Member]
Additional Information Related to Net Incurred Losses [Line Items]
Liability for unpaid claims and claims adjustment expense		$ 223,000
Reduction in reinsurance recoverables on unpaid and paid loses by		$ 223,000
Compagnie Belge d'Assurances Aviation NV/SA [Member]
Additional Information Related to Net Incurred Losses [Line Items]
Interests acquired	100.00%
Reserves of businesses acquired	$ 79,000
Reinsurance recoverable on unpaid and paid losses	$ 5,000