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Segment Reporting (Schedule of Segments) (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 USD ($) segments | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($)
Segment Reporting [Abstract] |  |  |
Number of reportable segments | segments | 4 |  |
Segment Reporting |  |  |
Operating lease income | $ 213,018 | $ 229,720 | $ 243,100
Interest income | 129,153 | 134,687 | 122,704
Other income | 46,515 | 49,931 | 81,033
Land development revenue | 88,340 | 100,216 | 15,191
Earnings (loss) from equity method investments | 77,349 | 32,153 | 94,905
Income from sales of real estate | 105,296 | 93,816 | 89,943
Total revenue and other earnings | 659,671 | 640,523 | 646,876
Real estate expense | (138,422) | (146,750) | (163,389)
Land development cost of sales | (62,007) | (67,382) | (12,840)
Other expense | (5,883) | (6,374) | (6,340)
Allocated interest expense | (221,398) | (224,639) | (224,483)
Allocated general and administrative | (73,138) | (69,264) | (74,973)
Segment profit (loss) | 158,823 | 126,114 | 164,851
(Recovery of) provision for loan losses | (12,514) | 36,567 | (1,714)
Impairment of assets | 14,484 | 10,524 | 34,634
Depreciation and amortization | 54,329 | 65,247 | 73,571
Capitalized expenditures | 169,999 | 183,269 | 145,238
Real estate, net | 1,491,752 | 1,593,983 |
Real estate available and held for sale | 83,764 | 137,274 |
Total real estate | 1,575,516 | 1,731,257 |
Land and development, net | 945,565 | 1,001,963 |
Loans receivable and other lending investments, net | 1,450,439 | 1,601,985 |
Other investments | 214,406 | 254,172 |
Total portfolio assets | 4,185,926 | 4,589,377 |
Cash and other assets | 639,588 | 1,008,415 |
Total assets | 4,825,514 | 5,597,792 |
Stock-based compensation expense | 10,889 | 12,013 | 13,314
Land and Development |  |  |
Segment Reporting |  |  |
Income from sales of real estate | 26,333 | 32,834 | 2,351
Operating Segments | Real Estate Finance |  |  |
Segment Reporting |  |  |
Operating lease income | 0 | 0 | 0
Interest income | 129,153 | 134,687 | 122,704
Other income | 4,658 | 9,737 | 21,217
Land development revenue | 0 | 0 | 0
Earnings (loss) from equity method investments | 0 | 0 | 0
Income from sales of real estate | 0 | 0 | 0
Total revenue and other earnings | 133,811 | 144,424 | 143,921
Real estate expense | 0 | 0 | 0
Land development cost of sales | 0 | 0 | 0
Other expense | (2,719) | (2,291) | (243)
Allocated interest expense | (57,787) | (57,109) | (58,043)
Allocated general and administrative | (15,311) | (13,128) | (13,211)
Segment profit (loss) | 57,994 | 71,896 | 72,424
(Recovery of) provision for loan losses | (12,514) | 36,567 | (1,714)
Impairment of assets | 0 | 0 | 0
Depreciation and amortization | 0 | 0 | 0
Capitalized expenditures | 0 | 0 | 0
Real estate, net | 0 | 0 |
Real estate available and held for sale | 0 | 0 |
Total real estate | 0 | 0 |
Land and development, net | 0 | 0 |
Loans receivable and other lending investments, net | 1,450,439 | 1,601,985 |
Other investments | 0 | 0 |
Total portfolio assets | 1,450,439 | 1,601,985 |
Total assets |  |  |
Operating Segments | Net Lease |  |  |
Segment Reporting |  |  |
Operating lease income | 148,002 | 151,481 | 151,934
Interest income | 0 | 0 | 0
Other income | 1,633 | 357 | 4,437
Land development revenue | 0 | 0 | 0
Earnings (loss) from equity method investments | 3,567 | 5,221 | 3,260
Income from sales of real estate | 21,138 | 40,082 | 6,206
Total revenue and other earnings | 174,340 | 197,141 | 165,837
Real estate expense | (19,058) | (21,855) | (22,967)
Land development cost of sales | 0 | 0 | 0
Other expense | 0 | 0 | 0
Allocated interest expense | (65,880) | (66,504) | (72,089)
Allocated general and administrative | (17,585) | (15,569) | (16,603)
Segment profit (loss) | 71,817 | 93,213 | 54,178
(Recovery of) provision for loan losses | 0 | 0 | 0
Impairment of assets | 4,829 | 0 | 3,689
Depreciation and amortization | 34,049 | 38,138 | 38,841
Capitalized expenditures | 3,667 | 4,195 | 3,933
Real estate, net | 1,015,590 | 1,112,479 |
Real estate available and held for sale | 1,284 | 0 |
Total real estate | 1,016,874 | 1,112,479 |
Land and development, net | 0 | 0 |
Loans receivable and other lending investments, net | 0 | 0 |
Other investments | 92,669 | 69,096 |
Total portfolio assets | 1,109,543 | 1,181,575 |
Total assets |  |  |
Operating Segments | Operating Properties |  |  |
Segment Reporting |  |  |
Operating lease income | 64,593 | 77,454 | 90,331
Interest income | 0 | 0 | 0
Other income | 33,216 | 34,637 | 42,000
Land development revenue | 0 | 0 | 0
Earnings (loss) from equity method investments | 33,863 | 1,663 | 1,669
Income from sales of real estate | 75,357 | 53,734 | 83,737
Total revenue and other earnings | 207,029 | 167,488 | 217,737
Real estate expense | (82,401) | (95,888) | (113,504)
Land development cost of sales | 0 | 0 | 0
Other expense | 0 | 0 | 0
Allocated interest expense | (23,156) | (28,014) | (39,535)
Allocated general and administrative | (6,574) | (6,988) | (9,608)
Segment profit (loss) | 94,898 | 36,598 | 55,090
(Recovery of) provision for loan losses | 0 | 0 | 0
Impairment of assets | 5,855 | 5,935 | 8,131
Depreciation and amortization | 17,887 | 24,548 | 32,142
Capitalized expenditures | 56,784 | 84,103 | 61,186
Real estate, net | 476,162 | 481,504 |
Real estate available and held for sale | 82,480 | 137,274 |
Total real estate | 558,642 | 618,778 |
Land and development, net | 0 | 0 |
Loans receivable and other lending investments, net | 0 | 0 |
Other investments | 3,583 | 11,124 |
Total portfolio assets | 562,225 | 629,902 |
Total assets |  |  |
Operating Segments | Land and Development |  |  |
Segment Reporting |  |  |
Operating lease income | 423 | 785 | 835
Interest income | 0 | 0 | 0
Other income | 3,170 | 1,219 | 3,327
Land development revenue | 88,340 | 100,216 | 15,191
Earnings (loss) from equity method investments | 30,012 | 16,683 | 14,966
Income from sales of real estate | 8,801 | 0 | 0
Total revenue and other earnings | 130,746 | 118,903 | 34,319
Real estate expense | (36,963) | (29,007) | (26,918)
Land development cost of sales | (62,007) | (67,382) | (12,840)
Other expense | 0 | 0 | 0
Allocated interest expense | (34,888) | (32,087) | (29,432)
Allocated general and administrative | (13,693) | (11,488) | (13,062)
Segment profit (loss) | (16,805) | (21,061) | (47,933)
(Recovery of) provision for loan losses | 0 | 0 | 0
Impairment of assets | 3,800 | 4,589 | 22,814
Depreciation and amortization | 1,296 | 1,422 | 1,440
Capitalized expenditures | 109,548 | 94,971 | 80,119
Real estate, net | 0 | 0 |
Real estate available and held for sale | 0 | 0 |
Total real estate | 0 | 0 |
Land and development, net | 945,565 | 1,001,963 |
Loans receivable and other lending investments, net | 0 | 0 |
Other investments | 84,804 | 100,419 |
Total portfolio assets | 1,030,369 | 1,102,382 |
Total assets |  |  |
Corporate/Other |  |  |
Segment Reporting |  |  |
Operating lease income | 0 | 0 | 0
Interest income | 0 | 0 | 0
Other income | 3,838 | 3,981 | 10,052
Land development revenue | 0 | 0 | 0
Earnings (loss) from equity method investments | 9,907 | 8,586 | 75,010
Income from sales of real estate | 0 | 0 | 0
Total revenue and other earnings | 13,745 | 12,567 | 85,062
Real estate expense | 0 | 0 | 0
Land development cost of sales | 0 | 0 | 0
Other expense | (3,164) | (4,083) | (6,097)
Allocated interest expense | (39,687) | (40,925) | (25,384)
Allocated general and administrative | (19,975) | (22,091) | (22,489)
Segment profit (loss) | (49,081) | (54,532) | 31,092
(Recovery of) provision for loan losses | 0 | 0 | 0
Impairment of assets | 0 | 0 | 0
Depreciation and amortization | 1,097 | 1,139 | 1,148
Capitalized expenditures | 0 | 0 | $ 0
Real estate, net | 0 | 0 |
Real estate available and held for sale | 0 | 0 |
Total real estate | 0 | 0 |
Land and development, net | 0 | 0 |
Loans receivable and other lending investments, net | 0 | 0 |
Other investments | 33,350 | 73,533 |
Total portfolio assets | $ 33,350 | 73,533 |
Total assets |  |  |

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