XML 120 R101.htm IDEA: XBRL DOCUMENT v2.4.0.6
Schedule IV-Mortgage Loans on Real Estate (Details 2) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Mortgage Loans on Real Estate [Abstract]      
Balance at January 1 $ 2,449,554,000 $ 4,012,067,000 $ 6,662,379,000
Additions:      
New mortgage loans 2,205,000 20,000,000 0
Additions under existing mortgage loans 29,887,000 82,598,000 326,093,000
Other(2) 33,324,000 32,922,000 48,493,000
Deductions(3):      
Collections of principal (700,943,000) (1,047,943,000) (2,004,129,000)
Provision for loan losses (121,869,000) (93,187,000) (291,905,000)
Transfers to real estate and equity investments (270,359,000) (556,753,000) (728,559,000)
Amortization of premium (145,000) (150,000) (305,000)
Balance at December 31 1,421,654,000 2,449,554,000 4,012,067,000
Charge-offs      
Charge-offs $ 106,900,000 $ 214,000,000 $ 804,700,000