DEBT (Details 2) (Consolidated Funds, USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2014	Dec. 31, 2013
DEBT
Market Value	$ 11,275,857	$ 11,774,157
Outstanding Loan	12,045,909	12,427,896
Senior secured notes
DEBT
Borrowing Outstanding	10,556,804	10,967,524
Market Value	10,239,074	10,679,878
Weighted Average Remaining Maturity In Years	8 years 9 months 22 days	8 years 11 months 1 day
Weighted average interest rate (as a percent)	2.35%	2.36%
Subordinated notes / preferred shares
DEBT
Borrowing Outstanding	1,367,796	1,325,446
Market Value	917,275	962,098
Weighted Average Remaining Maturity In Years	7 years 8 months 12 days	8 years 7 months 20 days
Notes payable
DEBT
Borrowing Outstanding	11,924,600	12,292,970
Market Value	11,156,349	11,641,976
Line of credit \| Revolving credit line
DEBT
Market Value	119,508	132,181
Outstanding Loan	121,309	134,926
Line of credit \| Revolving credit line \| Revolving credit line with maturity 04/16/21
DEBT
Market Value	48,184	48,119
Total Facility (Capacity)	48,949	48,949
Outstanding Loan	48,949	48,949
Effective rate (as a percent)	0.42%	0.43%
Line of Credit Facility, Commitment Fee Percentage	0.17%	0.17%
Line of credit \| Revolving credit line \| Revolving credit line with maturity 02/24/18
DEBT
Market Value		1,034
Total Facility (Capacity)	1,035	1,035
Outstanding Loan		1,035
Effective rate (as a percent)	0.51%	0.51%
Line of Credit Facility, Commitment Fee Percentage	0.19%	0.19%
Line of credit \| Revolving credit line \| Revolving credit line with maturity 03/12/18
DEBT
Market Value	13,728	23,351
Total Facility (Capacity)	13,808	23,567
Outstanding Loan	13,808	23,567
Effective rate (as a percent)	0.51%	0.52%
Line of Credit Facility, Commitment Fee Percentage	0.18%	0.18%
Line of credit \| Revolving credit line \| Revolving credit line with maturity 10/11/21
DEBT
Market Value	47,553	46,812
Total Facility (Capacity)	48,510	48,510
Outstanding Loan	48,510	48,510
Effective rate (as a percent)	0.44%	0.45%
Line of Credit Facility, Commitment Fee Percentage	0.17%	0.17%
Line of credit \| Revolving credit line \| Revolving credit line with maturity 01/26/20
DEBT
Market Value	10,043	12,865
Total Facility (Capacity)	10,043	12,865
Outstanding Loan	$ 10,042	$ 12,865
Effective rate (as a percent)	0.52%	0.52%
Line of Credit Facility, Commitment Fee Percentage	0.14%	0.14%

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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