HEDGES AND OTHER DERIVATIVE FINANCIAL INSTRUMENTS - Foreign Currency Contracts (Details) (Foreign Currency Contracts)	12 Months Ended						12 Months Ended								12 Months Ended								12 Months Ended								12 Months Ended								12 Months Ended						12 Months Ended								12 Months Ended							12 Months Ended				12 Months Ended			12 Months Ended					12 Months Ended					12 Months Ended			12 Months Ended						12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2013 Euro USD ($)	Dec. 31, 2012 Euro USD ($)	Dec. 31, 2013 Euro EUR (€)	Dec. 31, 2012 Euro EUR (€)	Dec. 31, 2013 Euro Minimum	Dec. 31, 2012 Euro Minimum	Dec. 31, 2013 Euro Maximum	Dec. 31, 2012 Euro Maximum	Dec. 31, 2013 Pound Sterling USD ($)	Dec. 31, 2012 Pound Sterling USD ($)	Dec. 31, 2013 Pound Sterling GBP (£)	Dec. 31, 2012 Pound Sterling GBP (£)	Dec. 31, 2013 Pound Sterling Minimum	Dec. 31, 2012 Pound Sterling Minimum	Dec. 31, 2013 Pound Sterling Maximum	Dec. 31, 2012 Pound Sterling Maximum	Dec. 31, 2013 Canadian Dollar USD ($)	Dec. 31, 2012 Canadian Dollar USD ($)	Dec. 31, 2013 Canadian Dollar CAD	Dec. 31, 2012 Canadian Dollar CAD	Dec. 31, 2013 Canadian Dollar Minimum	Dec. 31, 2012 Canadian Dollar Minimum	Dec. 31, 2013 Canadian Dollar Maximum	Dec. 31, 2012 Canadian Dollar Maximum	Dec. 31, 2013 Australian Dollar USD ($)	Dec. 31, 2012 Australian Dollar USD ($)	Dec. 31, 2013 Australian Dollar AUD	Dec. 31, 2012 Australian Dollar AUD	Dec. 31, 2013 Australian Dollar Minimum	Dec. 31, 2012 Australian Dollar Minimum	Dec. 31, 2013 Australian Dollar Maximum	Dec. 31, 2012 Australian Dollar Maximum	Dec. 31, 2013 Hong Kong Dollar USD ($)	Dec. 31, 2012 Hong Kong Dollar USD ($)	Dec. 31, 2013 Hong Kong Dollar HKD	Dec. 31, 2012 Hong Kong Dollar HKD	Dec. 31, 2013 Hong Kong Dollar Maximum	Dec. 31, 2012 Hong Kong Dollar Maximum	Dec. 31, 2013 Japanese Yen USD ($)	Dec. 31, 2012 Japanese Yen USD ($)	Dec. 31, 2013 Japanese Yen JPY (¥)	Dec. 31, 2012 Japanese Yen JPY (¥)	Dec. 31, 2013 Japanese Yen Minimum	Dec. 31, 2012 Japanese Yen Minimum	Dec. 31, 2013 Japanese Yen Maximum	Dec. 31, 2012 Japanese Yen Maximum	Dec. 31, 2013 Swiss Franc USD ($)	Dec. 31, 2012 Swiss Franc USD ($)	Dec. 31, 2013 Swiss Franc CHF	Dec. 31, 2012 Swiss Franc CHF	Dec. 31, 2012 Swiss Franc Minimum	Dec. 31, 2013 Swiss Franc Maximum	Dec. 31, 2012 Swiss Franc Maximum	Dec. 31, 2013 Singapore Dollar USD ($)	Dec. 31, 2012 Singapore Dollar USD ($)	Dec. 31, 2013 Singapore Dollar SGD	Dec. 31, 2012 Singapore Dollar SGD	Dec. 31, 2013 Singapore Dollar Maximum	Dec. 31, 2012 Singapore Dollar Maximum	Dec. 31, 2012 Chinese Yuan USD ($)	Dec. 31, 2012 Chinese Yuan CNY	Dec. 31, 2012 Chinese Yuan Maximum	Dec. 31, 2013 South Korean Won USD ($)	Dec. 31, 2013 South Korean Won CNY	Dec. 31, 2013 South Korean Won Maximum	Dec. 31, 2013 New Zealand Dollar USD ($)	Dec. 31, 2012 New Zealand Dollar USD ($)	Dec. 31, 2013 New Zealand Dollar NZD	Dec. 31, 2012 New Zealand Dollar NZD	Dec. 31, 2013 New Zealand Dollar Minimum	Dec. 31, 2013 New Zealand Dollar Maximum	Dec. 31, 2012 New Zealand Dollar Maximum	Dec. 31, 2013 Danish Krone USD ($)	Dec. 31, 2013 Danish Krone DKK	Dec. 31, 2013 Danish Krone Maximum	Dec. 31, 2013 Indian Rupee USD ($)	Dec. 31, 2013 Indian Rupee INR	Dec. 31, 2013 Indian Rupee Minimum	Dec. 31, 2013 Indian Rupee Maximum	Dec. 31, 2013 Korean Won USD ($)	Dec. 31, 2012 Korean Won USD ($)	Dec. 31, 2013 Korean Won KRW	Dec. 31, 2012 Korean Won KRW	Dec. 31, 2013 Korean Won Minimum	Dec. 31, 2012 Korean Won Minimum	Dec. 31, 2013 Korean Won Maximum	Dec. 31, 2012 Korean Won Maximum
Derivative [Line Items]
Contract Amount in Local Currency					€ (1,324,989,000)	€ (1,612,565,000)							£ (905,090,000)	£ (419,386,000)							(8,289,000)	(14,743,000)							(404,642,000)	(643,136,000)							(37,208,000)	(31,301,000)					¥ (37,773,587,000)	¥ (32,661,235,000)							(2,355,000)	(10,041,000)						(5,741,000)	(1,858,000)				0			(1,236,110,000)				(114,303,000)	(68,079,000)					(314,524,000)			424,331,000					(104,273,576,000)	(85,515,234,000)
Contract Amount in U.S. Dollars	4,287,454,000	3,924,272,000	1,832,932,000	2,030,641,000							1,437,028,000	666,362,000							7,864,000	15,056,000							376,193,000	654,139,000							4,800,000	4,038,000					383,383,000	413,138,000							2,635,000	10,803,000						2,717,000	1,520,000					0			1,161,000			94,065,000	54,573,000						57,007,000			(6,106,000)				93,775,000	74,002,000
Market Value in U.S. Dollars	4,370,935,000	4,017,448,000	1,878,449,000	2,126,806,000							1,510,779,000	680,600,000							7,706,000	14,789,000							361,010,000	665,263,000							4,799,000	4,038,000					359,072,000	377,884,000							2,648,000	10,971,000						2,633,000	1,521,000					(55,000)			1,177,000			92,984,000	56,133,000						58,047,000			(6,502,000)				98,133,000	79,498,000
Net Unrealized Appreciation (Depreciation)	$ (83,481,000)	$ (93,863,000)	$ (45,517,000)	$ (96,165,000)							$ (73,751,000)	$ (14,238,000)							$ 158,000	$ 267,000							$ 15,183,000	$ (11,124,000)							$ 1,000	$ 0					$ 24,311,000	$ 35,254,000							$ (13,000)	$ (168,000)						$ 84,000	$ (1,000)					$ (632,000)			$ (16,000)			$ 1,081,000	$ (1,560,000)						$ (1,040,000)			$ 396,000				$ (4,358,000)	$ (5,496,000)
Expiration date							Jan. 06, 2014	Jan. 07, 2013	Mar. 04, 2015	Jun. 27, 2014					Jan. 06, 2014	Jan. 07, 2013	Dec. 12, 2014	Aug. 03, 2015					Jan. 16, 2014	Jan. 10, 2013	Feb. 13, 2014	Mar. 14, 2013					Jan. 16, 2014	Jan. 10, 2013	Jun. 12, 2014	Mar. 14, 2013					Jan. 23, 2014	Jan. 17, 2013					Jan. 10, 2014	Jan. 10, 2013	Nov. 28, 2014	Nov. 29, 2013					Jan. 07, 2013	Jan. 23, 2014	Jan. 17, 2013					Jan. 23, 2014	Jan. 17, 2013			Mar. 07, 2013			Jan. 23, 2014					Feb. 13, 2014	Jun. 12, 2014	Jan. 10, 2013			Nov. 04, 2014			Jan. 02, 2014	Dec. 01, 2015					Feb. 04, 2014	Feb. 04, 2013	Jul. 23, 2014	Jun. 19, 2014