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Reportable Segments - Income from Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Revenues: |  |  |  |  |  |  |  |  |  |  |
Community base rental income |  |  |  |  |  |  |  |  | $ 518,252 | $ 489,613 | $ 464,745
Resort base rental income |  |  |  |  |  |  |  |  | 239,906 | 218,806 | 201,533
Right-to-use contract upfront payments, deferred, net |  |  |  |  |  |  |  |  |  | 14,132 |
Utility and other income |  |  |  |  |  |  |  |  | 100,562 | 93,252 | 81,427
Total revenues | $ 243,451 | $ 256,675 | $ 240,502 | $ 246,025 | $ 229,986 | $ 241,625 | $ 221,312 | $ 232,389 | 986,653 | 925,312 | 870,435
Expenses: |  |  |  |  |  |  |  |  |  |  |
Property operating and maintenance |  |  |  |  |  |  |  |  | 313,003 | 294,119 | 268,249
Real estate taxes |  |  |  |  |  |  |  |  | 55,892 | 55,010 | 53,036
Sales and marketing, gross |  |  |  |  |  |  |  |  | 12,542 | 11,438 | 11,056
Right-to-use contract commissions, deferred, net |  |  |  |  |  |  |  |  | (813) | (354) | (223)
Home selling expenses |  |  |  |  |  |  |  |  | 4,095 | 4,186 | 3,575
Rental home operating and maintenance |  |  |  |  |  |  |  |  | 6,836 | 6,610 | 6,883
Total expenses |  |  |  |  |  |  |  |  | 765,206 | 718,700 | 685,908
Income before equity in income of unconsolidated joint ventures |  |  |  |  |  |  |  |  | 221,447 | 206,612 | 184,527
Property Operations |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Community base rental income |  |  |  |  |  |  |  |  | 518,252 | 489,613 | 464,745
Resort base rental income |  |  |  |  |  |  |  |  | 239,906 | 218,806 | 201,533
Utility and other income |  |  |  |  |  |  |  |  | 100,562 | 93,252 | 81,427
Total revenues |  |  |  |  |  |  |  |  | 916,565 | 859,582 | 803,784
Expenses: |  |  |  |  |  |  |  |  |  |  |
Property operating and maintenance |  |  |  |  |  |  |  |  | 313,003 | 294,119 | 268,249
Real estate taxes |  |  |  |  |  |  |  |  | 55,892 | 55,010 | 53,036
Sales and marketing, gross |  |  |  |  |  |  |  |  | 12,542 | 11,438 | 11,056
Right-to-use contract commissions, deferred, net |  |  |  |  |  |  |  |  | (813) | (354) | (223)
Total expenses |  |  |  |  |  |  |  |  | 434,360 | 411,465 | 379,201
Income before equity in income of unconsolidated joint ventures |  |  |  |  |  |  |  |  | 482,205 | 448,117 | 424,583
Home Sales and Rentals Operations |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Resort base rental income |  |  |  |  |  |  |  |  | 14,329 | 14,344 | 14,107
Total revenues |  |  |  |  |  |  |  |  | 51,721 | 52,355 | 52,496
Expenses: |  |  |  |  |  |  |  |  |  |  |
Home selling expenses |  |  |  |  |  |  |  |  | 4,095 | 4,186 | 3,575
Rental home operating and maintenance |  |  |  |  |  |  |  |  | 6,836 | 6,610 | 6,883
Total expenses |  |  |  |  |  |  |  |  | 48,406 | 47,309 | 47,914
Income before equity in income of unconsolidated joint ventures |  |  |  |  |  |  |  |  | 3,315 | 5,046 | 4,582
Home Sales |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Right-to-use contract upfront payments, deferred, net |  |  |  |  |  |  |  |  | 36,064 | 36,302 | 37,191
Expenses: |  |  |  |  |  |  |  |  |  |  |
Cost of home sales |  |  |  |  |  |  |  |  | 37,475 | 36,513 | 37,456
Home Sales | Home Sales and Rentals Operations |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Right-to-use contract upfront payments, deferred, net |  |  |  |  |  |  |  |  | 36,064 | 36,302 | 37,191
Expenses: |  |  |  |  |  |  |  |  |  |  |
Cost of home sales |  |  |  |  |  |  |  |  | 37,475 | 36,513 | 37,456
Brokered resale revenues, net | Home Sales and Rentals Operations |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Right-to-use contract upfront payments, deferred, net |  |  |  |  |  |  |  |  | 1,290 | 1,235 | 1,198
Right-to-use annual payments |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Right-to-use contract upfront payments, deferred, net |  |  |  |  |  |  |  |  | 47,778 | 45,798 | 45,035
Right-to-use annual payments | Property Operations |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Right-to-use contract upfront payments, deferred, net |  |  |  |  |  |  |  |  | 47,778 | 45,798 | 45,035
Right-to-use contracts current period, gross |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Right-to-use contract upfront payments, deferred, net |  |  |  |  |  |  |  |  | 15,191 | 14,132 | 12,327
Right-to-use contracts current period, gross | Property Operations |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Right-to-use contract upfront payments, deferred, net |  |  |  |  |  |  |  |  | 15,191 | 14,132 | 12,327
Right-to-use contract upfront payments, deferred, net | Property Operations |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Right-to-use contract upfront payments, deferred, net |  |  |  |  |  |  |  |  | (7,380) | (4,108) | (3,079)
Ancillary services revenues, net | Property Operations |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Right-to-use contract upfront payments, deferred, net |  |  |  |  |  |  |  |  | 2,256 | 2,089 | 1,796
Ancillary services revenues, net | Home Sales and Rentals Operations |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |
Right-to-use contract upfront payments, deferred, net |  |  |  |  |  |  |  |  | 38 | 474 | 0
Property management |  |  |  |  |  |  |  |  |  |  |
Expenses: |  |  |  |  |  |  |  |  |  |  |
Cost of home sales |  |  |  |  |  |  |  |  | 53,736 | 51,252 | 47,083
Property management | Property Operations |  |  |  |  |  |  |  |  |  |  |
Expenses: |  |  |  |  |  |  |  |  |  |  |
Cost of home sales |  |  |  |  |  |  |  |  | $ 53,736 | $ 51,252 | $ 47,083

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