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Commitments and Contingencies - Fair Value of Annuities (Detail) $ in Thousands | Dec. 31, 2015 USD ($)
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Commitments And Contingencies [Line Items] |
Statement value of annuities exceeding 1% of statutory surplus | $ 95,692
Metropolitan Life Insurance Company (A+) [Member] |
Commitments And Contingencies [Line Items] |
Statement value of annuities exceeding 1% of statutory surplus | 16,279
Pacific Life and Annuity Company (A+) [Member] |
Commitments And Contingencies [Line Items] |
Statement value of annuities exceeding 1% of statutory surplus | 15,739
American General Life Insurance (A) [Member] |
Commitments And Contingencies [Line Items] |
Statement value of annuities exceeding 1% of statutory surplus | 15,364
New York Life Insurance Company (A++) [Member] |
Commitments And Contingencies [Line Items] |
Statement value of annuities exceeding 1% of statutory surplus | 11,303
John Hancock Life Insurance Company USA (A+) [Member] |
Commitments And Contingencies [Line Items] |
Statement value of annuities exceeding 1% of statutory surplus | 7,596
Athene Annuity and Life Assurance Company (A-) [Member] |
Commitments And Contingencies [Line Items] |
Statement value of annuities exceeding 1% of statutory surplus | 6,133
Liberty Life Assurance Company of Boston (A) [Member] |
Commitments And Contingencies [Line Items] |
Statement value of annuities exceeding 1% of statutory surplus | 3,837
Other [Member] |
Commitments And Contingencies [Line Items] |
Statement value of annuities exceeding 1% of statutory surplus | $ 19,441

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