INVESTMENTS, AT FAIR VALUE - Investments, at Fair Value (Detail) (USD $) In Thousands, unless otherwise specified
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
50.80% |
60.10% |
Equity Securities Fair Value Percentage |
49.20% |
39.90% |
Securities sold short, at fair value |
$ (126,530) |
$ (213,727) |
Investments, at fair value |
38,372,626 |
38,614,226 |
Total investments, Percentage |
100.00% |
100.00% |
Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
19,488,737 |
23,206,769 |
Securities sold short, at fair value |
0 |
(12,450) |
Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities, Fair Value |
18,883,889 |
15,407,457 |
Securities sold short, at fair value |
(126,530) |
(201,277) |
United States [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
13,698,904 |
17,674,567 |
Equity Securities, Fair Value |
13,281,294 |
10,524,374 |
United States [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
35.70% |
45.80% |
United States [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
34.60% |
27.30% |
United States [Member] | Consumer discretionary [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
5,072,283 |
7,656,687 |
Equity Securities, Fair Value |
3,289,347 |
3,189,373 |
United States [Member] | Consumer discretionary [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
13.20% |
19.90% |
United States [Member] | Consumer discretionary [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
8.60% |
8.30% |
United States [Member] | Consumer staples [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
697,300 |
394,897 |
Equity Securities, Fair Value |
444,735 |
299,673 |
United States [Member] | Consumer staples [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
1.80% |
1.00% |
United States [Member] | Consumer staples [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
1.20% |
0.80% |
United States [Member] | Energy [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
565,151 |
551,850 |
Equity Securities, Fair Value |
448,412 |
542,490 |
United States [Member] | Energy [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
1.50% |
1.40% |
United States [Member] | Energy [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
1.20% |
1.40% |
United States [Member] | Financials [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
1,013,230 |
1,398,771 |
Equity Securities, Fair Value |
6,001,493 |
3,296,925 |
United States [Member] | Financials [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
2.60% |
3.60% |
United States [Member] | Financials [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
15.60% |
8.50% |
United States [Member] | Health care [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
658,932 |
508,947 |
Equity Securities, Fair Value |
134,239 |
140,509 |
United States [Member] | Health care [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
1.70% |
1.30% |
United States [Member] | Health care [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.30% |
0.40% |
United States [Member] | Industrials [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
1,957,259 |
2,976,294 |
Equity Securities, Fair Value |
1,201,156 |
1,021,423 |
United States [Member] | Industrials [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
5.10% |
7.70% |
United States [Member] | Industrials [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
3.10% |
2.60% |
United States [Member] | Information technology [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
908,662 |
764,642 |
Equity Securities, Fair Value |
199,003 |
72,613 |
United States [Member] | Information technology [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
2.40% |
2.00% |
United States [Member] | Information technology [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.50% |
0.20% |
United States [Member] | Materials [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
826,008 |
1,050,651 |
Equity Securities, Fair Value |
1,407,850 |
1,490,285 |
United States [Member] | Materials [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
2.20% |
2.70% |
United States [Member] | Materials [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
3.70% |
3.90% |
United States [Member] | Telecommunication services [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
282,101 |
262,830 |
Equity Securities, Fair Value |
15,022 |
458,033 |
United States [Member] | Telecommunication services [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.70% |
0.70% |
United States [Member] | Telecommunication services [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.00% |
1.20% |
United States [Member] | Utilities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
1,717,978 |
2,108,998 |
Equity Securities, Fair Value |
140,037 |
13,050 |
United States [Member] | Utilities [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
4.50% |
5.50% |
United States [Member] | Utilities [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.40% |
0.00% |
Europe [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
4,486,075 |
3,678,950 |
Equity Securities, Fair Value |
3,475,119 |
3,096,493 |
Europe [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
11.70% |
9.50% |
Europe [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
9.10% |
8.00% |
Europe [Member] | Consumer discretionary [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
1,607,822 |
1,369,006 |
Equity Securities, Fair Value |
117,485 |
220,504 |
Europe [Member] | Consumer discretionary [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
4.20% |
3.50% |
Europe [Member] | Consumer discretionary [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.30% |
0.60% |
Europe [Member] | Consumer staples [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
486,037 |
366,268 |
Equity Securities, Fair Value |
1,336,420 |
1,258,840 |
Europe [Member] | Consumer staples [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
1.30% |
1.00% |
Europe [Member] | Consumer staples [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
3.50% |
3.30% |
Europe [Member] | Energy [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
272,079 |
68,689 |
Equity Securities, Fair Value |
91,724 |
0 |
Europe [Member] | Energy [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.70% |
0.20% |
Europe [Member] | Energy [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.20% |
0.00% |
Europe [Member] | Financials [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
627,161 |
458,177 |
Equity Securities, Fair Value |
1,553,598 |
896,977 |
Europe [Member] | Financials [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
1.60% |
1.20% |
Europe [Member] | Financials [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
4.10% |
2.30% |
Europe [Member] | Health care [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
19,585 |
52,098 |
Europe [Member] | Health care [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.00% |
0.10% |
Europe [Member] | Industrials [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
531,770 |
550,122 |
Equity Securities, Fair Value |
1,388 |
6,239 |
Europe [Member] | Industrials [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
1.40% |
1.40% |
Europe [Member] | Industrials [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.00% |
0.00% |
Europe [Member] | Information technology [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
5,397 |
40,348 |
Equity Securities, Fair Value |
335 |
0 |
Europe [Member] | Information technology [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.00% |
0.10% |
Europe [Member] | Information technology [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.00% |
0.00% |
Europe [Member] | Materials [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
717,294 |
697,314 |
Equity Securities, Fair Value |
374,169 |
713,933 |
Europe [Member] | Materials [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
1.90% |
1.80% |
Europe [Member] | Materials [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
1.00% |
1.80% |
Europe [Member] | Telecommunication services [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
190,369 |
28,835 |
Europe [Member] | Telecommunication services [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.50% |
0.10% |
Europe [Member] | Utilities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
28,561 |
48,093 |
Europe [Member] | Utilities [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.10% |
0.10% |
Asia and other [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
1,303,758 |
1,853,252 |
Equity Securities, Fair Value |
2,127,476 |
1,786,590 |
Asia and other [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
3.40% |
4.80% |
Asia and other [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
5.50% |
4.60% |
Asia and other [Member] | Consumer discretionary [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
680,273 |
1,274,605 |
Equity Securities, Fair Value |
99,527 |
125,039 |
Asia and other [Member] | Consumer discretionary [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
1.80% |
3.30% |
Asia and other [Member] | Consumer discretionary [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.30% |
0.30% |
Asia and other [Member] | Consumer staples [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
3,615 |
6,821 |
Equity Securities, Fair Value |
42,688 |
80,728 |
Asia and other [Member] | Consumer staples [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.00% |
0.00% |
Asia and other [Member] | Consumer staples [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.10% |
0.20% |
Asia and other [Member] | Energy [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
47,776 |
221,786 |
Equity Securities, Fair Value |
213,490 |
55,973 |
Asia and other [Member] | Energy [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.10% |
0.60% |
Asia and other [Member] | Energy [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.60% |
0.10% |
Asia and other [Member] | Financials [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
22,186 |
31,726 |
Equity Securities, Fair Value |
973,745 |
801,538 |
Asia and other [Member] | Financials [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.10% |
0.10% |
Asia and other [Member] | Financials [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
2.50% |
2.10% |
Asia and other [Member] | Health care [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
1,622 |
0 |
Equity Securities, Fair Value |
71 |
76 |
Asia and other [Member] | Health care [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.00% |
0.00% |
Asia and other [Member] | Health care [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.00% |
0.00% |
Asia and other [Member] | Industrials [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
290,639 |
27,996 |
Equity Securities, Fair Value |
613,020 |
491,080 |
Asia and other [Member] | Industrials [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.80% |
0.10% |
Asia and other [Member] | Industrials [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
1.60% |
1.30% |
Asia and other [Member] | Information technology [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
33,260 |
94,727 |
Equity Securities, Fair Value |
75,583 |
63,949 |
Asia and other [Member] | Information technology [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.10% |
0.20% |
Asia and other [Member] | Information technology [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.20% |
0.20% |
Asia and other [Member] | Materials [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
92,974 |
64,049 |
Equity Securities, Fair Value |
51,296 |
54,714 |
Asia and other [Member] | Materials [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.20% |
0.20% |
Asia and other [Member] | Materials [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.10% |
0.10% |
Asia and other [Member] | Telecommunication services [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
1,939 |
2,186 |
Equity Securities, Fair Value |
6,044 |
16,073 |
Asia and other [Member] | Telecommunication services [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.00% |
0.00% |
Asia and other [Member] | Telecommunication services [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.00% |
0.00% |
Asia and other [Member] | Utilities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed income securities, Fair Value |
129,474 |
129,356 |
Equity Securities, Fair Value |
$ 52,012 |
$ 97,420 |
Asia and other [Member] | Utilities [Member] | Fixed Income Investments [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Fixed Income Securities Fair Value Percentage |
0.30% |
0.30% |
Asia and other [Member] | Utilities [Member] | Equity securities [Member]
|
|
|
Schedule Of Investments In Marketable Securities [Line Items] |
|
|
Equity Securities Fair Value Percentage |
0.10% |
0.30% |