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Segment Reporting (Schedule of Segments) (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2017 USD ($) segments | Sep. 30, 2016 USD ($) | Dec. 31, 2016 USD ($)
Segment Reporting [Abstract] |  |  |  |  |  |
Number of reportable segments | segments |  |  |  | 4 |  |
Segment Reporting |  |  |  |  |  |
Operating lease income |  | $ 47,806 | $ 46,800 | $ 142,155 | $ 147,270 |
Interest income |  | 25,442 | 32,258 | 83,145 | 99,877 |
Other income |  | 20,662 | 13,442 | 172,037 | 35,079 |
Land development revenue |  | 25,962 | 31,554 | 178,722 | 74,389 |
Earnings from equity method investments |  | 2,461 | 26,540 | 13,677 | 74,254 |
Income from discontinued operations |  | 0 | 3,721 | 4,939 | 10,934 |
Gain from discontinued operations |  | 0 | 0 | 123,418 | 0 |
Income from sales of real estate | [1] | 19,313 | 34,444 | 28,267 | 88,387 |
Total revenue and other earnings |  | 141,646 | 188,759 | 746,360 | 530,190 |
Real estate expense |  | (36,280) | (35,243) | (106,554) | (104,815) |
Land development cost of sales |  | (27,512) | (22,004) | (165,888) | (50,842) |
Other expense |  | (2,704) | (819) | (20,849) | (4,741) |
Allocated interest expense |  | (48,732) | (55,105) | (148,684) | (168,173) |
Allocated general and administrative |  | (18,021) | (18,232) | (60,617) | (54,789) |
Segment profit (loss) |  | 8,397 | 57,356 | 243,768 | 146,830 |
Other significant items: |  |  |  |  |  |
Recovery of loan losses |  | (2,600) | (14,955) | (8,128) | (12,749) |
Impairment of assets |  | 595 | 8,741 | 15,292 | 11,753 |
Depreciation and amortization |  | 11,846 | 12,201 | 37,297 | 39,781 |
Capitalized expenditures |  | 43,816 | 42,774 | 118,947 | 139,767 |
Real estate, net |  | 1,323,862 |  | 1,323,862 |  | $ 1,387,274
Real estate available and held for sale |  | 65,658 |  | 65,658 |  | 237,531
Total real estate |  | 1,389,520 |  | 1,389,520 |  | 1,624,805
Land and development, net |  | 861,507 |  | 861,507 |  | 945,565
Loans receivable and other lending investments, net |  | 1,109,442 |  | 1,109,442 |  | 1,450,439
Other investments |  | 289,037 |  | 289,037 |  | 214,406
Total portfolio assets |  | 3,649,506 |  | 3,649,506 |  | 4,235,215
Cash and other assets |  | 2,145,713 |  | 2,145,713 |  | 590,299
Total assets |  | 5,795,219 |  | 5,795,219 |  | 4,825,514
Stock-based compensation expense |  | 2,934 | 1,434 | 12,730 | 7,644 |
Land and Development |  |  |  |  |  |
Segment Reporting |  |  |  |  |  |
Income from sales of real estate |  |  |  | 12,834 | 23,547 |
Operating Segments | Real Estate Finance |  |  |  |  |  |
Segment Reporting |  |  |  |  |  |
Operating lease income |  | 0 | 0 | 0 | 0 |
Interest income |  | 25,442 | 32,258 | 83,145 | 99,877 |
Other income |  | 1,298 | 1,052 | 1,854 | 2,672 |
Land development revenue |  | 0 | 0 | 0 | 0 |
Earnings from equity method investments |  | 0 | 0 | 0 | 0 |
Income from discontinued operations |  |  | 0 | 0 | 0 |
Gain from discontinued operations |  |  |  | 0 |  |
Income from sales of real estate |  | 0 | 0 | 0 | 0 |
Total revenue and other earnings |  | 26,740 | 33,310 | 84,999 | 102,549 |
Real estate expense |  | 0 | 0 | 0 | 0 |
Land development cost of sales |  | 0 | 0 | 0 | 0 |
Other expense |  | (261) | (794) | (1,263) | (1,634) |
Allocated interest expense |  | (9,165) | (14,544) | (31,561) | (43,877) |
Allocated general and administrative |  | (3,334) | (3,995) | (11,621) | (11,612) |
Segment profit (loss) |  | 13,980 | 13,977 | 40,554 | 45,426 |
Other significant items: |  |  |  |  |  |
Recovery of loan losses |  | (2,600) | (14,955) | (8,128) | (12,749) |
Impairment of assets |  | 0 | 0 | 0 | 0 |
Depreciation and amortization |  | 0 | 0 | 0 | 0 |
Capitalized expenditures |  | 0 | 0 | 0 | 0 |
Real estate, net |  | 0 |  | 0 |  | 0
Real estate available and held for sale |  | 0 |  | 0 |  | 0
Total real estate |  | 0 |  | 0 |  | 0
Land and development, net |  | 0 |  | 0 |  | 0
Loans receivable and other lending investments, net |  | 1,109,442 |  | 1,109,442 |  | 1,450,439
Other investments |  | 0 |  | 0 |  | 0
Total portfolio assets |  | 1,109,442 |  | 1,109,442 |  | 1,450,439
Operating Segments | Net Lease |  |  |  |  |  |
Segment Reporting |  |  |  |  |  |
Operating lease income |  | 31,503 | 32,287 | 93,606 | 95,636 |
Interest income |  | 0 | 0 | 0 | 0 |
Other income |  | 953 | 412 | 2,009 | 924 |
Land development revenue |  | 0 | 0 | 0 | 0 |
Earnings from equity method investments |  | 1,302 | 723 | 3,363 | 2,613 |
Income from discontinued operations |  |  | 3,721 | 4,939 | 10,934 |
Gain from discontinued operations |  |  |  | 123,418 |  |
Income from sales of real estate |  | 18,765 | 6,629 | 24,977 | 15,896 |
Total revenue and other earnings |  | 52,523 | 43,772 | 252,312 | 126,003 |
Real estate expense |  | (4,423) | (4,707) | (13,062) | (13,770) |
Land development cost of sales |  | 0 | 0 | 0 | 0 |
Other expense |  | 0 | 0 | 0 | 0 |
Allocated interest expense |  | (12,255) | (16,330) | (41,659) | (49,030) |
Allocated general and administrative |  | (4,315) | (4,526) | (14,878) | (13,135) |
Segment profit (loss) |  | 31,530 | 18,209 | 182,713 | 50,068 |
Other significant items: |  |  |  |  |  |
Recovery of loan losses |  | 0 | 0 | 0 | 0 |
Impairment of assets |  | 0 | 4,829 | 219 | 4,829 |
Depreciation and amortization |  | 6,623 | 7,829 | 21,662 | 23,857 |
Capitalized expenditures |  | 2,384 | 934 | 4,071 | 3,410 |
Real estate, net |  | 844,493 |  | 844,493 |  | 911,112
Real estate available and held for sale |  | 0 |  | 0 |  | 155,051
Total real estate |  | 844,493 |  | 844,493 |  | 1,066,163
Land and development, net |  | 0 |  | 0 |  | 0
Loans receivable and other lending investments, net |  | 0 |  | 0 |  | 0
Other investments |  | 185,176 |  | 185,176 |  | 92,669
Total portfolio assets |  | 1,029,669 |  | 1,029,669 |  | 1,158,832
Operating Segments | Operating Properties |  |  |  |  |  |
Segment Reporting |  |  |  |  |  |
Operating lease income |  | 16,048 | 14,407 | 47,977 | 51,317 |
Interest income |  | 0 | 0 | 0 | 0 |
Other income |  | 14,097 | 10,793 | 37,720 | 25,351 |
Land development revenue |  | 0 | 0 | 0 | 0 |
Earnings from equity method investments |  | (399) | 630 | 702 | 31,564 |
Income from discontinued operations |  |  | 0 | 0 | 0 |
Gain from discontinued operations |  |  |  | 0 |  |
Income from sales of real estate |  | 548 | 27,815 | 3,290 | 72,491 |
Total revenue and other earnings |  | 30,294 | 53,645 | 89,689 | 180,723 |
Real estate expense |  | (23,185) | (21,129) | (67,356) | (63,046) |
Land development cost of sales |  | 0 | 0 | 0 | 0 |
Other expense |  | 0 | 0 | 0 | 0 |
Allocated interest expense |  | (4,860) | (5,110) | (15,472) | (17,579) |
Allocated general and administrative |  | (1,866) | (1,502) | (5,985) | (5,010) |
Segment profit (loss) |  | 383 | 25,904 | 876 | 95,088 |
Other significant items: |  |  |  |  |  |
Recovery of loan losses |  | 0 | 0 | 0 | 0 |
Impairment of assets |  | 595 | 112 | 5,009 | 3,124 |
Depreciation and amortization |  | 4,343 | 3,798 | 13,305 | 14,103 |
Capitalized expenditures |  | 7,644 | 15,902 | 24,210 | 44,145 |
Real estate, net |  | 479,369 |  | 479,369 |  | 476,162
Real estate available and held for sale |  | 65,658 |  | 65,658 |  | 82,480
Total real estate |  | 545,027 |  | 545,027 |  | 558,642
Land and development, net |  | 0 |  | 0 |  | 0
Loans receivable and other lending investments, net |  | 0 |  | 0 |  | 0
Other investments |  | 21,828 |  | 21,828 |  | 3,583
Total portfolio assets |  | 566,855 |  | 566,855 |  | 562,225
Operating Segments | Land and Development |  |  |  |  |  |
Segment Reporting |  |  |  |  |  |
Operating lease income |  | 255 | 106 | 572 | 317 |
Interest income |  | 0 | 0 | 0 | 0 |
Other income |  | 1,174 | 658 | 125,430 | 2,889 |
Land development revenue |  | 25,962 | 31,554 | 178,722 | 74,389 |
Earnings from equity method investments |  | 948 | 21,841 | 8,396 | 31,189 |
Income from discontinued operations |  |  | 0 | 0 | 0 |
Gain from discontinued operations |  |  |  | 0 |  |
Income from sales of real estate |  | 0 | 0 | 0 | 0 |
Total revenue and other earnings |  | 28,339 | 54,159 | 313,120 | 108,784 |
Real estate expense |  | (8,672) | (9,407) | (26,136) | (27,999) |
Land development cost of sales |  | (27,512) | (22,004) | (165,888) | (50,842) |
Other expense |  | 0 | 0 | 0 | 0 |
Allocated interest expense |  | (6,529) | (9,013) | (21,769) | (26,040) |
Allocated general and administrative |  | (3,706) | (3,495) | (12,636) | (10,092) |
Segment profit (loss) |  | (18,080) | 10,240 | 86,691 | (6,189) |
Other significant items: |  |  |  |  |  |
Recovery of loan losses |  | 0 | 0 | 0 | 0 |
Impairment of assets |  | 0 | 3,800 | 10,064 | 3,800 |
Depreciation and amortization |  | 546 | 298 | 1,337 | 997 |
Capitalized expenditures |  | 33,788 | 25,938 | 90,666 | 92,212 |
Real estate, net |  | 0 |  | 0 |  | 0
Real estate available and held for sale |  | 0 |  | 0 |  | 0
Total real estate |  | 0 |  | 0 |  | 0
Land and development, net |  | 861,507 |  | 861,507 |  | 945,565
Loans receivable and other lending investments, net |  | 0 |  | 0 |  | 0
Other investments |  | 63,308 |  | 63,308 |  | 84,804
Total portfolio assets |  | 924,815 |  | 924,815 |  | 1,030,369
Corporate/Other |  |  |  |  |  |
Segment Reporting |  |  |  |  |  |
Operating lease income |  | 0 | 0 | 0 | 0 |
Interest income |  | 0 | 0 | 0 | 0 |
Other income |  | 3,140 | 527 | 5,024 | 3,243 |
Land development revenue |  | 0 | 0 | 0 | 0 |
Earnings from equity method investments |  | 610 | 3,346 | 1,216 | 8,888 |
Income from discontinued operations |  |  | 0 | 0 | 0 |
Gain from discontinued operations |  |  |  | 0 |  |
Income from sales of real estate |  | 0 | 0 | 0 | 0 |
Total revenue and other earnings |  | 3,750 | 3,873 | 6,240 | 12,131 |
Real estate expense |  | 0 | 0 | 0 | 0 |
Land development cost of sales |  | 0 | 0 | 0 | 0 |
Other expense |  | (2,443) | (25) | (19,586) | (3,107) |
Allocated interest expense |  | (15,923) | (10,108) | (38,223) | (31,647) |
Allocated general and administrative |  | (4,800) | (4,714) | (15,497) | (14,940) |
Segment profit (loss) |  | (19,416) | (10,974) | (67,066) | (37,563) |
Other significant items: |  |  |  |  |  |
Recovery of loan losses |  | 0 | 0 | 0 | 0 |
Impairment of assets |  | 0 | 0 | 0 | 0 |
Depreciation and amortization |  | 334 | 276 | 993 | 824 |
Capitalized expenditures |  | 0 | $ 0 | 0 | $ 0 |
Real estate, net |  | 0 |  | 0 |  | 0
Real estate available and held for sale |  | 0 |  | 0 |  | 0
Total real estate |  | 0 |  | 0 |  | 0
Land and development, net |  | 0 |  | 0 |  | 0
Loans receivable and other lending investments, net |  | 0 |  | 0 |  | 0
Other investments |  | 18,725 |  | 18,725 |  | 33,350
Total portfolio assets |  | $ 18,725 |  | $ 18,725 |  | $ 33,350
[1] | Income from sales of real estate represents gains from sales of real estate that do not qualify as discontinued operations.

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