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Reported Segments - Consolidated Net Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Segment Reporting Information [Line Items] |  |  |
Operations revenues | $ 856,280 | $ 807,265 | $ 761,409
Operations expenses | (427,115) | (402,990) | (381,597)
Income from segment operations | 429,165 | 404,275 | 379,812
Interest income | 6,782 | 6,932 | 7,450
Depreciation on real estate assets and rental homes | (117,400) | (113,609) | (111,065)
Amortization of in-place leases | (3,373) | (2,358) | (3,999)
Income (loss) from operations | 315,174 | 295,240 | 272,198
Reconciliation to Consolidated net income |  |  |
Corporate interest income | 63 | 98 | 897
Income from other investments, net | 7,310 | 7,359 | 7,053
General and administrative | (31,004) | (30,644) | (27,410)
Property rights initiatives and other | (4,986) | (2,986) | (2,923)
Early debt retirement | 0 | (16,913) | (5,087)
Interest and related amortization | (102,030) | (105,731) | (112,295)
Equity in income of unconsolidated joint ventures | 2,605 | 4,089 | 4,578
Gain on sale of property |  |  | 1,457
Consolidated net income | 187,132 | 150,512 | 138,468
Total assets | 3,478,987 | 3,400,400 | 3,429,225
Capital improvements | 119,437 | 93,799 | 63,721
Property Operations Segment |  |  |
Segment Reporting Information [Line Items] |  |  |
Operations revenues | 803,784 | 758,834 | 716,942
Operations expenses | (379,201) | (360,353) | (345,067)
Income from segment operations | 424,583 | 398,481 | 371,875
Interest income | 2,894 | 2,813 | 2,984
Depreciation on real estate assets and rental homes | (106,560) | (102,747) | (99,980)
Amortization of in-place leases | (3,373) | (2,358) | (3,999)
Income (loss) from operations | 317,544 | 296,189 | 270,880
Reconciliation to Consolidated net income |  |  |
Total assets | 3,250,205 | 3,158,559 | 3,161,769
Capital improvements | 57,825 | 51,369 | 35,973
Home Sales And Rentals |  |  |
Segment Reporting Information [Line Items] |  |  |
Operations revenues | 52,496 | 48,431 | 44,467
Operations expenses | (47,914) | (42,637) | (36,530)
Income from segment operations | 4,582 | 5,794 | 7,937
Interest income | 3,888 | 4,119 | 4,466
Depreciation on real estate assets and rental homes | (10,840) | (10,862) | (11,085)
Amortization of in-place leases | 0 | 0 | 0
Income (loss) from operations | (2,370) | (949) | 1,318
Reconciliation to Consolidated net income |  |  |
Total assets | 228,782 | 241,841 | 267,456
Capital improvements | $ 61,612 | $ 42,430 | $ 27,748

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