(Notes to Schedule III) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010
Real Estate
Real estate, beginning balance		$ 997,323	$ 1,253,414	$ 1,363,320
Additions during the period:
Cost of real property acquired	116,229	1,321,394	42,692
Improvements and other capitalized costs	50,009	86,376	49,559
Depreciation expense	0	0	0
Real estate additions, total	166,238	1,407,770	92,251
Deductions during the period:
Cost of real estate sold or foreclosed	162,989	240,278	334,552
Impairment loss	104,183	0	13,790
Write-off of fully depreciated assets	8,972	0	0
Real estate deductions, total	276,144	240,278	348,342
Real estate, ending balance	1,253,414	2,164,815	997,323	1,363,320
Accumulated Depreciation
Real estate accumulated depreciation, beginning balance		258,258	289,473	274,925
Additions during the period:
Acquisition	0	0	0
Improvements and other capitalized costs	0	0	0
Depreciation expense	52,630	56,234	48,607
Real estate accumulated depreciation additions, total	52,630	56,234	48,607
Deductions during the period:
Cost of real estate sold or foreclosed	29,110	57,341	79,822
Impairment loss	0	0	0
Write-off of fully depreciated assets	8,972	0	0
Real estate accumulated depreciation deductions, total	38,082	57,341	79,822
Real estate accumulated depreciation, ending balance	$ 289,473	$ 257,151	$ 258,258	$ 274,925
Minimum [Member] | Buildings and Improvements [Member]
Deductions during the period:
Useful life		24 years
Maximum [Member] | Buildings and Improvements [Member]
Deductions during the period:
Useful life		42 years