v2.4.0.8
Fair Value of Financial Instruments (Fair Value and Carrying Value of Financial Instruments Measured on a Recurring Basis) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: $ 34,129 $ 35,991
Derivative assets   52
Separate Account Assets: 4,799,568 4,625,099
Derivative Liabilities: 1,517 598
Significant unobservable inputs Level 3
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total 193 274
Recurring | Corporate loans
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans Held-for-sale, Fair Value Disclosure 25,104  
Recurring | Quoted prices in active markets Level 1
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 0 0
trading investments 0 0
Available for sale securities: 7,445 7,751
Derivative assets 0 0
Separate Account Assets: 376,651 513,074
Total 384,096 520,825
Total 19,254 18,493
Recurring | Quoted prices in active markets Level 1 | Interest Rate Lock Commitments [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 0  
Recurring | Quoted prices in active markets Level 1 | Credit derivatives
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 0 0
Recurring | Quoted prices in active markets Level 1 | U.S. Treasury securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities: 19,254 18,493
Recurring | Quoted prices in active markets Level 1 | Derivative Financial Instruments, Liabilities [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 0  
Recurring | Quoted prices in active markets Level 1 | Privately held equity securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 0 [1] 0 [1]
Recurring | Quoted prices in active markets Level 1 | Tax exempt securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 0 0
Recurring | Quoted prices in active markets Level 1 | CDO
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 0 0
Recurring | Quoted prices in active markets Level 1 | CLO
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 0 0
Recurring | Quoted prices in active markets Level 1 | Corporate bonds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 0 [2] 0 [2]
Available for sale securities: 0 0
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Corporate loans
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans Held-for-sale, Fair Value Disclosure 0  
Corporate loans 0 [3] 0 [3]
Recurring | Quoted prices in active markets Level 1 | U.S. Treasury securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 7,445 7,751
Separate Account Assets: 2,791 17,634
Recurring | Quoted prices in active markets Level 1 | Obligations of state and political subdivisions
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 0 0
Recurring | Quoted prices in active markets Level 1 | Certificates of deposit
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 0 0
Recurring | Quoted prices in active markets Level 1 | Asset-backed securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 0 0
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Credit Default Swap
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 0 0
Recurring | Quoted prices in active markets Level 1 | Cash
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 3,357 26,129
Recurring | Quoted prices in active markets Level 1 | Short-term investments
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 157,378 171,927
Recurring | Quoted prices in active markets Level 1 | U.S. government agencies
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Municipal bonds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Preferred stocks
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 1,193 1,018
Recurring | Quoted prices in active markets Level 1 | Common stock
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 108,328 100,630
Recurring | Quoted prices in active markets Level 1 | Mutual funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 103,604 195,736
Recurring | Quoted prices in active markets Level 1 | Real estate funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Private equity
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Multi-strategy
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Long/short
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Fund of funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Event driven
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Long only
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Global macro
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Fixed income arbitrage
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Master limited partnerships
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Fixed income (non-arbitrage)
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Other
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Other
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Quoted prices in active markets Level 1 | Credit derivatives
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 0  
Recurring | Other significant observable inputs Level 2
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 25,282 30,759
trading investments 24,442 30,707
Available for sale securities: 10,507 10,012
Derivative assets 840 52
Separate Account Assets: 501,114 278,624
Total 1,821,935 1,758,094
Total 1,517 598
Recurring | Other significant observable inputs Level 2 | Interest Rate Lock Commitments [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 619  
Recurring | Other significant observable inputs Level 2 | Credit derivatives
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 221 52
Recurring | Other significant observable inputs Level 2 | U.S. Treasury securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities: 0 0
Recurring | Other significant observable inputs Level 2 | Derivative Financial Instruments, Liabilities [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 1,517  
Recurring | Other significant observable inputs Level 2 | Privately held equity securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 0 [1] 0 [1]
Recurring | Other significant observable inputs Level 2 | Tax exempt securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 24,442 30,707
Recurring | Other significant observable inputs Level 2 | CDO
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 0 0
Recurring | Other significant observable inputs Level 2 | CLO
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 0 0
Recurring | Other significant observable inputs Level 2 | Corporate bonds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 0 [2] 0 [2]
Available for sale securities: 6,729 5,596
Separate Account Assets: 8,826 18,116
Recurring | Other significant observable inputs Level 2 | Corporate loans
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans Held-for-sale, Fair Value Disclosure 25,104  
Corporate loans 99,945 [3] 1,438,699 [3]
Recurring | Other significant observable inputs Level 2 | U.S. Treasury securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 0 0
Separate Account Assets: 0 0
Recurring | Other significant observable inputs Level 2 | Obligations of state and political subdivisions
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 3,610 4,238
Recurring | Other significant observable inputs Level 2 | Certificates of deposit
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 100 100
Recurring | Other significant observable inputs Level 2 | Asset-backed securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 68 78
Separate Account Assets: 99 8,113
Recurring | Other significant observable inputs Level 2 | Credit Default Swap
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 845 598
Recurring | Other significant observable inputs Level 2 | Cash
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Other significant observable inputs Level 2 | Short-term investments
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Other significant observable inputs Level 2 | U.S. government agencies
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 1,192 1,436
Recurring | Other significant observable inputs Level 2 | Municipal bonds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 6,878 8,014
Recurring | Other significant observable inputs Level 2 | Preferred stocks
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Other significant observable inputs Level 2 | Common stock
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Other significant observable inputs Level 2 | Mutual funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 137,092 0
Recurring | Other significant observable inputs Level 2 | Real estate funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Other significant observable inputs Level 2 | Private equity
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Other significant observable inputs Level 2 | Multi-strategy
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 66,652 66,615
Recurring | Other significant observable inputs Level 2 | Long/short
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 22,255 19,115
Recurring | Other significant observable inputs Level 2 | Fund of funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 3,379 2,509
Recurring | Other significant observable inputs Level 2 | Event driven
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Other significant observable inputs Level 2 | Long only
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 36,114 34,787
Recurring | Other significant observable inputs Level 2 | Global macro
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 13,549 13,157
Recurring | Other significant observable inputs Level 2 | Fixed income arbitrage
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Other significant observable inputs Level 2 | Master limited partnerships
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 200,907 102,394
Recurring | Other significant observable inputs Level 2 | Fixed income (non-arbitrage)
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 4,027 4,117
Recurring | Other significant observable inputs Level 2 | Other
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Other significant observable inputs Level 2 | Other
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 144 251
Recurring | Other significant observable inputs Level 2 | Credit derivatives
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 672  
Recurring | Significant unobservable inputs Level 3
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 30,319 24,598
trading investments 30,319 24,598
Available for sale securities: 0 0
Derivative assets 0 0
Separate Account Assets: 3,921,803 3,833,401
Total 4,380,094 3,888,542
Total 0 0
Recurring | Significant unobservable inputs Level 3 | Interest Rate Lock Commitments [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 0  
Recurring | Significant unobservable inputs Level 3 | Credit derivatives
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 0 0
Recurring | Significant unobservable inputs Level 3 | U.S. Treasury securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities: 0 0
Recurring | Significant unobservable inputs Level 3 | Derivative Financial Instruments, Liabilities [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 0  
Recurring | Significant unobservable inputs Level 3 | Privately held equity securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 4,171 [1] 5,306 [1]
Recurring | Significant unobservable inputs Level 3 | Tax exempt securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 3,551 273
Recurring | Significant unobservable inputs Level 3 | CDO
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 300 520
Recurring | Significant unobservable inputs Level 3 | CLO
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 825 825
Recurring | Significant unobservable inputs Level 3 | Corporate bonds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 18,253 [2] 17,674 [2]
Available for sale securities: 0 0
Separate Account Assets: 0 0
Recurring | Significant unobservable inputs Level 3 | Corporate loans
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans Held-for-sale, Fair Value Disclosure 0  
Corporate loans 22,039 [3] 30,543 [3]
Recurring | Significant unobservable inputs Level 3 | U.S. Treasury securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 0 0
Separate Account Assets: 0 0
Recurring | Significant unobservable inputs Level 3 | Obligations of state and political subdivisions
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 0 0
Recurring | Significant unobservable inputs Level 3 | Certificates of deposit
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 0 0
Recurring | Significant unobservable inputs Level 3 | Asset-backed securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 0 0
Separate Account Assets: 0 0
Recurring | Significant unobservable inputs Level 3 | Credit Default Swap
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 0 0
Recurring | Significant unobservable inputs Level 3 | Cash
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Significant unobservable inputs Level 3 | Short-term investments
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Significant unobservable inputs Level 3 | U.S. government agencies
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Significant unobservable inputs Level 3 | Municipal bonds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Significant unobservable inputs Level 3 | Preferred stocks
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Significant unobservable inputs Level 3 | Common stock
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Significant unobservable inputs Level 3 | Mutual funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Significant unobservable inputs Level 3 | Real estate funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 2,769,159 2,719,387
Recurring | Significant unobservable inputs Level 3 | Private equity
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 84 138
Recurring | Significant unobservable inputs Level 3 | Multi-strategy
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 714,672 682,751
Recurring | Significant unobservable inputs Level 3 | Long/short
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 80,047 84,315
Recurring | Significant unobservable inputs Level 3 | Fund of funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 177,862 191,423
Recurring | Significant unobservable inputs Level 3 | Event driven
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 90,855 86,724
Recurring | Significant unobservable inputs Level 3 | Long only
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 20,721 20,305
Recurring | Significant unobservable inputs Level 3 | Global macro
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 6,819 8,245
Recurring | Significant unobservable inputs Level 3 | Fixed income arbitrage
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 6,953 8,669
Recurring | Significant unobservable inputs Level 3 | Master limited partnerships
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 53,826 28,814
Recurring | Significant unobservable inputs Level 3 | Fixed income (non-arbitrage)
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 742 2,557
Recurring | Significant unobservable inputs Level 3 | Other
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 63 73
Recurring | Significant unobservable inputs Level 3 | Other
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 0 0
Recurring | Significant unobservable inputs Level 3 | Credit derivatives
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 0  
Recurring | Fair value
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 55,601 55,357
trading investments 54,761 55,305
Available for sale securities: 17,952 17,763
Derivative assets 840 52
Separate Account Assets: 4,799,568 4,625,099
Total 6,586,125 6,167,461
Total 20,771 19,091
Recurring | Fair value | Interest Rate Lock Commitments [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 619  
Recurring | Fair value | Credit derivatives
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 221 52
Recurring | Fair value | U.S. Treasury securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities: 19,254 18,493
Recurring | Fair value | Derivative Financial Instruments, Liabilities [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 1,517  
Recurring | Fair value | Privately held equity securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 4,171 [1] 5,306 [1]
Recurring | Fair value | Tax exempt securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 27,993 30,980
Recurring | Fair value | CDO
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 300 520
Recurring | Fair value | CLO
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 825 825
Recurring | Fair value | Corporate bonds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 18,253 [2] 17,674 [2]
Available for sale securities: 6,729 5,596
Separate Account Assets: 8,826 18,116
Recurring | Fair value | Corporate loans
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans Held-for-sale, Fair Value Disclosure 25,104  
Corporate loans 121,984 [3] 1,469,242 [3]
Recurring | Fair value | U.S. Treasury securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 7,445 7,751
Separate Account Assets: 2,791 17,634
Recurring | Fair value | Obligations of state and political subdivisions
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 3,610 4,238
Recurring | Fair value | Certificates of deposit
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 100 100
Recurring | Fair value | Asset-backed securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 68 78
Separate Account Assets: 99 8,113
Recurring | Fair value | Credit Default Swap
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 845 598
Recurring | Fair value | Cash
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 3,357 26,129
Recurring | Fair value | Short-term investments
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 157,378 171,927
Recurring | Fair value | U.S. government agencies
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 1,192 1,436
Recurring | Fair value | Municipal bonds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 6,878 8,014
Recurring | Fair value | Preferred stocks
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 1,193 1,018
Recurring | Fair value | Common stock
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 108,328 100,630
Recurring | Fair value | Mutual funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 240,696 195,736
Recurring | Fair value | Real estate funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 2,769,159 2,719,387
Recurring | Fair value | Private equity
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 84 138
Recurring | Fair value | Multi-strategy
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 781,324 749,366
Recurring | Fair value | Long/short
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 102,302 103,430
Recurring | Fair value | Fund of funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 181,241 193,932
Recurring | Fair value | Event driven
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 90,855 86,724
Recurring | Fair value | Long only
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 56,835 55,092
Recurring | Fair value | Global macro
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 20,368 21,402
Recurring | Fair value | Fixed income arbitrage
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 6,953 8,669
Recurring | Fair value | Master limited partnerships
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 254,733 131,208
Recurring | Fair value | Fixed income (non-arbitrage)
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 4,769 6,674
Recurring | Fair value | Other
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 63 73
Recurring | Fair value | Other
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 144 251
Recurring | Fair value | Credit derivatives
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 672  
Carrying value
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 34,129 35,991
Corporate loans   40,260
Available for sale securities: 17,952 17,763
Separate Account Assets: 4,799,568 4,625,099
Total 7,065,095 6,562,834
Debt Securities:   360,609
Derivative Liabilities: 1,517 598
Total 6,699,206 6,188,598
Carrying value | Recurring
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 55,601 55,357
trading investments 54,761 55,305
Available for sale securities: 17,952 17,763
Derivative assets 840 52
Separate Account Assets: 4,799,568 4,625,099
Total 6,586,125 6,167,461
Total 20,771 19,091
Carrying value | Recurring | Interest Rate Lock Commitments [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 619  
Carrying value | Recurring | Credit derivatives
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 221 52
Derivative Liabilities:   598
Carrying value | Recurring | U.S. Treasury securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities: 19,254 18,493
Carrying value | Recurring | Privately held equity securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 4,171 [1] 5,306 [1]
Carrying value | Recurring | Tax exempt securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 27,993 30,980
Carrying value | Recurring | CDO
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 300 520
Carrying value | Recurring | CLO
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 825 825
Carrying value | Recurring | Corporate bonds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 18,253 [2] 17,674 [2]
Available for sale securities: 6,729 5,596
Separate Account Assets: 8,826 18,116
Carrying value | Recurring | Corporate loans
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Corporate loans 121,984 [3] 1,469,242 [3]
Carrying value | Recurring | U.S. Treasury securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 7,445 7,751
Separate Account Assets: 2,791 17,634
Carrying value | Recurring | Obligations of state and political subdivisions
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 3,610 4,238
Carrying value | Recurring | Certificates of deposit
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 100 100
Carrying value | Recurring | Asset-backed securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available for sale securities: 68 78
Separate Account Assets: 99 8,113
Carrying value | Recurring | Cash
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 3,357 26,129
Carrying value | Recurring | Short-term investments
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 157,378 171,927
Carrying value | Recurring | U.S. government agencies
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 1,192 1,436
Carrying value | Recurring | Municipal bonds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 6,878 8,014
Carrying value | Recurring | Preferred stocks
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 1,193 1,018
Carrying value | Recurring | Common stock
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 108,328 100,630
Carrying value | Recurring | Mutual funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 240,696 195,736
Carrying value | Recurring | Real estate funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 2,769,159 2,719,387
Carrying value | Recurring | Private equity
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 84 138
Carrying value | Recurring | Multi-strategy
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 781,324 749,366
Carrying value | Recurring | Long/short
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 102,302 103,430
Carrying value | Recurring | Fund of funds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 181,241 193,932
Carrying value | Recurring | Event driven
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 90,855 86,724
Carrying value | Recurring | Long only
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 56,835 55,092
Carrying value | Recurring | Global macro
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 20,368 21,402
Carrying value | Recurring | Fixed income arbitrage
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 6,953 8,669
Carrying value | Recurring | Master limited partnerships
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 254,733 131,208
Carrying value | Recurring | Fixed income (non-arbitrage)
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 4,769 6,674
Carrying value | Recurring | Other
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 63 73
Carrying value | Recurring | Other
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Separate Account Assets: 144 251
Fair value
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments:   35,991
Corporate loans 63,572 48,212
Available for sale securities:   17,763
Separate Account Assets:   4,625,099
Total 7,073,664 6,570,786
Debt Securities: 300,434 376,250
Derivative Liabilities:   598
Total 6,713,934 6,204,239
CLO | Recurring | Quoted prices in active markets Level 1 | Privately held equity securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 0  
CLO | Recurring | Quoted prices in active markets Level 1 | Corporate loans
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Corporate loans 0  
CLO | Recurring | Other significant observable inputs Level 2 | Privately held equity securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 0  
CLO | Recurring | Other significant observable inputs Level 2 | Corporate loans
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Corporate loans 1,159,983 1,267,612 [3]
CLO | Recurring | Significant unobservable inputs Level 3 | Privately held equity securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 3,219 1,692 [1]
CLO | Recurring | Significant unobservable inputs Level 3 | Corporate bonds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments:   17,674 [2]
CLO | Recurring | Significant unobservable inputs Level 3 | Corporate loans
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Corporate loans 405,933 30,543 [3]
CLO | Recurring | Fair value | Privately held equity securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 3,219 [1]  
CLO | Recurring | Fair value | Corporate loans
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Corporate loans 1,565,916  
CLO | Carrying value | Recurring | Privately held equity securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading investments: 3,219 [1]  
CLO | Carrying value | Recurring | Corporate loans
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Corporate loans 1,565,916  
Credit Default Swap | Fair value
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 845  
Derivative Financial Instruments, Liabilities [Member] | Fair value
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: 1,517  
Credit derivatives
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities:   598
Credit derivatives | Fair value
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liabilities: $ 672  
[1] Includes $1,692 related to CLOs classified in Level 3.
[2] Includes $17,674 related to CLOs classified in Level 3.
[3] Includes $1,267,612 and $30,543 classified in Level 2 and Level 3, respectively, related to CLOs.