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Network
2408406 - Disclosure - Income Taxes (Summary Of Unrecognized Tax Benefits) (Details)
(http://www.assurant.com/role/IncomeTaxesSummaryOfUnrecognizedTaxBenefitsDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001267238 (http://www.sec.gov/CIK)
Income Tax Disclosure [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Income Tax Disclosure [Abstract]
 
 
 
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
 
 
 
Balance at beginning of year
(37,010,000) 
(6,262,000) 
(10,322,000) 
Additions based on tax positions related to the current year
(1,021,000) 
(30,712,000) 
(2,940,000) 
Reductions based on tax positions related to the current year
0  
102,000  
581,000  
Additions for tax positions of prior years
(1,401,000) 
(2,128,000) 
(1,037,000) 
Reductions for tax positions of prior years
3,786,000  
431,000  
2,495,000  
Lapses
1,486,000  
1,559,000  
0  
Settlements
0  
0  
4,961,000  
Balance at end of year
(34,160,000) 
 
(37,010,000) 
 
(6,262,000)