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Policy Liabilities and Short Duration Contracts Short Duration Insurance Contracts (Details) claim in Thousands, $ in Thousands	Dec. 31, 2016 USD ($) claim	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)
Claims Development [Line Items]
Liabilities for claims and claim adjustment expenses, net of reinsurance	$ 543
Property Insurance Product Line [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	9,781
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	9,281
All outstanding liabilities before 2012, net of reinsurance	0
Liabilities for claims and claim adjustment expenses, net of reinsurance	500
2012 [Member] | Property Insurance Product Line [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	2,440	$ 2,440	$ 2,448	$ 2,445	$ 2,511
Total of Incurred-but-Not-Reported Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | claim	898
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 2,440	2,440	2,440	2,428	$ 2,144
2013 [Member] | Property Insurance Product Line [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	1,964	1,970	1,977	2,058
Total of Incurred-but-Not-Reported Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | claim	328
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 1,964	1,964	1,964	$ 1,751
2014 [Member] | Property Insurance Product Line [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	1,575	1,650	1,744
Total of Incurred-but-Not-Reported Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | claim	254
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 1,560	1,556	$ 1,361
2015 [Member] | Property Insurance Product Line [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	1,731	1,777
Total of Incurred-but-Not-Reported Liabilities Plus Expected Development on Reported Claims	$ 10
Cumulative Number of Reported Claims | claim	356
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 1,637	$ 1,410
2016 [Member] | Property Insurance Product Line [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	2,071
Total of Incurred-but-Not-Reported Liabilities Plus Expected Development on Reported Claims	$ 175
Cumulative Number of Reported Claims | claim	463
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 1,680

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Amount, after reinsurance, of paid claims and allocated claim adjustment expense used in claims development for short-duration insurance contracts. Excludes unallocated claim adjustment expense.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 50
-Paragraph 4B
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Undiscounted amount, after reinsurance, of incurred-but-not-reported (IBNR) liabilities plus expected development on reported claims, for claims and allocated claim adjustment expense for short-duration insurance contracts. Excludes unallocated claim adjustment expense.

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Undiscounted amount, after reinsurance, of the liability for unpaid claims and allocated claim adjustment expense for short-duration insurance contracts. Excludes unallocated claim adjustment expense.

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Undiscounted amount, after reinsurance, of the liability for unpaid claims and allocated claim adjustment expense for short-duration insurance contracts for accident years not separately presented in claim development information. Excludes unallocated claim adjustment expense.

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