INVESTMENTS (Details 3) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Investments
Fair Value	$ 44,263,123	$ 40,697,848
Private Equity Investments
Investments
Fair Value	35,268,074	34,114,623
Private Equity Investments | Health Care
Investments
Fair Value	8,509,698	7,708,080
Private Equity Investments | Technology
Investments
Fair Value	4,770,255	4,566,236
Private Equity Investments | Manufacturing
Investments
Fair Value	4,492,445	3,240,474
Private Equity Investments | Retail
Investments
Fair Value	4,410,526	4,970,092
Private Equity Investments | Other
Investments
Fair Value	$ 13,085,150	$ 13,629,741