XML 63 R52.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Investments (Mortgage Loans by Credit Quality Indicator) (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | $ 3,879,769 | $ 3,783,207
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total | 100.00% | 100.00%
Mortgage Loans By Credit Quality Indicator Range Four [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | $ 138,917 | $ 149,656
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total | 3.60% | 4.00%
Mortgage Loans By Credit Quality Indicator Range Three [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | $ 413,445 | $ 415,330
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total | 10.70% | 11.00%
Mortgage Loans By Credit Quality Indicator Range Two [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | $ 1,294,234 | $ 1,292,466
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total | 33.40% | 34.20%
Mortgage Loans By Credit Quality Indicator Range One [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | $ 2,033,173 | $ 1,925,755
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total | 52.30% | 50.80%
Debt Service Coverage Ratio Range Three [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | $ 60,411 | $ 61,094
Debt Service Coverage Ratio Range Three [Member] | Mortgage Loans By Credit Quality Indicator Range Four [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | 35,021 | 35,359
Debt Service Coverage Ratio Range Three [Member] | Mortgage Loans By Credit Quality Indicator Range Three [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | 24,207 | 24,369
Debt Service Coverage Ratio Range Three [Member] | Mortgage Loans By Credit Quality Indicator Range Two [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | 0 | 0
Debt Service Coverage Ratio Range Three [Member] | Mortgage Loans By Credit Quality Indicator Range One [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | 1,183 | 1,366
Debt Service Coverage Ratio Range Two [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | 119,859 | 120,296
Debt Service Coverage Ratio Range Two [Member] | Mortgage Loans By Credit Quality Indicator Range Four [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | 0 | 0
Debt Service Coverage Ratio Range Two [Member] | Mortgage Loans By Credit Quality Indicator Range Three [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | 20,734 | 20,869
Debt Service Coverage Ratio Range Two [Member] | Mortgage Loans By Credit Quality Indicator Range Two [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | 34,584 | 34,678
Debt Service Coverage Ratio Range Two [Member] | Mortgage Loans By Credit Quality Indicator Range One [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | 64,541 | 64,749
Debt Service Coverage Ratio Range One [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | 3,699,499 | 3,601,817
Debt Service Coverage Ratio Range One [Member] | Mortgage Loans By Credit Quality Indicator Range Four [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | 103,896 | 114,297
Debt Service Coverage Ratio Range One [Member] | Mortgage Loans By Credit Quality Indicator Range Three [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | 368,504 | 370,092
Debt Service Coverage Ratio Range One [Member] | Mortgage Loans By Credit Quality Indicator Range Two [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | 1,259,650 | 1,257,788
Debt Service Coverage Ratio Range One [Member] | Mortgage Loans By Credit Quality Indicator Range One [Member] |  |
Mortgage Loans on Real Estate [Line Items] |  |
Loans Receivable, Gross, Commercial, Real Estate | $ 1,967,449 | $ 1,859,640

X
- Definition The amount represents the total percentage of each property type in comparison to the total of mortgage loans whose balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio. + References No definition available. + Details
Name: | rga_MortgageLoansOnRealEstateCommercialAndConsumerNetPercentageOfTotal
Namespace Prefix: | rga_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount before allowance of commercial loans issued to businesses to acquire, develop, construct, improve, or refinance land or building. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(c)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5066-111524 + Details
Name: | us-gaap_LoansReceivableCommercialRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_MortgageLoansOnRealEstateLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LoanToValueAxis=rga_MortgageLoansByCreditQualityIndicatorRangeFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanToValueAxis=rga_MortgageLoansByCreditQualityIndicatorRangeThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanToValueAxis=rga_MortgageLoansByCreditQualityIndicatorRangeTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanToValueAxis=rga_MortgageLoansByCreditQualityIndicatorRangeOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DebtServiceCoverageRatioByRangeAxis=rga_DebtServiceCoverageRatioRangeThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DebtServiceCoverageRatioByRangeAxis=rga_DebtServiceCoverageRatioRangeTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DebtServiceCoverageRatioByRangeAxis=rga_DebtServiceCoverageRatioRangeOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |