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SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Thousands | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Nov. 30, 2019 USD ($) home | Jan. 31, 2019 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Jan. 31, 2020 USD ($) | Jan. 01, 2019 USD ($) | Mar. 31, 2018 USD ($)
Accounting policies |  |  |  |  |  |  |  |
Lease classification per practical expedient |  |  | true |  |  |  |  |
Recognition of operating lease right-of-use assets |  |  | $ 204,225 |  |  |  |  |
Recognition of operating lease liabilities |  |  | 198,558 |  |  |  |  |
Allocation of other comprehensive income/(loss) |  |  | (826) | $ 244 |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Development costs excluding direct costs and capitalized interest |  |  | 8,400 | 7,500 | $ 8,800 |  |  |
Interest capitalized during period |  |  | 5,100 | 10,600 | 18,600 |  |  |
Notes receivable |  |  | 153,650 | 42,259 |  |  |  |
Promoted interest received |  |  | 8,500 | 0 | 0 |  |  |
Interest Income, Related Party |  |  | 0 |  |  |  |  |
Amortization schedule term | 30 years |  |  |  |  |  |  |
Note receivable interest income |  |  | $ 5,500 | 4,100 | 1,800 |  |  |
Minimum period units are outstanding prior to redemption (in years) |  |  | 1 year |  |  |  |  |
Current Income Tax Expense (Benefit) |  |  | $ 0 |  |  |  |  |
Deferred tax liabilities, net |  |  | (1,600) |  |  |  |  |
Unrecognized tax benefit, accrued interest or penalties due to examination |  |  | 0 |  |  |  |  |
Advertising expense |  |  | $ 6,500 | 6,700 | 6,200 |  |  |
Minimum percentage of carrying value of real estate portfolio |  |  | 10.00% |  |  |  |  |
Bellevue, WA 259 Home Community |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Aggregate commitment on note receivable |  |  | $ 115,000 |  |  |  |  |
Number of apartment homes | home | 259 |  |  |  |  |  |  |
Deposit made under purchase option agreement |  |  | 10,000 |  |  |  |  |
Payment to acquire real estate | $ 170,000 |  |  |  |  |  |  |
Purchase option exercisable term | 30 days |  |  |  |  |  |  |
Maturity date extension term | 10 years |  |  |  |  |  |  |
Loan interest term | 3 years |  |  |  |  |  |  |
Note due February 2020 |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Notes receivable |  |  | $ 16,400 | 14,659 |  |  |  |
Note receivable interest rate |  |  | 10.00% |  |  |  |  |
Aggregate commitment on note receivable |  |  | $ 16,400 |  |  |  |  |
Additional amount loaned |  |  | 1,700 |  |  |  |  |
Note maturity public capital threshold |  |  | 5,000 |  |  |  |  |
Note due January 2023 |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Notes receivable |  |  |  |  |  | $ 19,400 |  |
Note due March 2020 |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Notes receivable |  |  | $ 20,000 | 20,000 |  |  |  | $ 20,000
Note receivable interest rate |  |  | 12.00% |  |  |  |  |
Aggregate commitment on note receivable |  |  |  |  |  |  |  | $ 20,000
Note due October 2020 |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Notes receivable |  |  | $ 2,250 | 2,000 |  |  |  |
Note receivable interest rate |  |  | 8.00% |  |  |  |  |
Aggregate commitment on note receivable |  |  | $ 2,300 |  |  |  |  |
Additional amount loaned |  |  | 300 |  |  |  |  |
Note maturity public capital threshold |  |  | $ 10,000 |  |  |  |  |
Note due August 2022 |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Notes receivable |  |  |  | 5,600 |  |  |  |
Proceeds from secured notes receivable |  | $ 5,600 |  |  |  |  |  |
Procceds from accrued interest |  | 200 |  |  |  |  |  |
Note receivable interest rate |  |  | 10.00% |  |  |  |  |
Promoted interest received |  | $ 8,500 |  |  |  |  |  |
Note due October 2022 |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Notes receivable |  |  | $ 115,000 |  |  |  |  |
Note receivable interest rate |  |  | 4.75% |  |  |  |  |
Minimum |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Ownership (as a percent) |  |  | 100.00% |  |  |  |  |
Minimum | Buildings |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Estimated useful lives |  |  | 30 years |  |  |  |  |
Minimum | Building improvements |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Estimated useful lives |  |  | 10 years |  |  |  |  |
Minimum | Furniture, fixtures, equipment, and other assets |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Estimated useful lives |  |  | 3 years |  |  |  |  |
Maximum |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Deferred tax liabilities, net |  |  |  | (100) |  |  |  |
Maximum | Buildings |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Estimated useful lives |  |  | 55 years |  |  |  |  |
Maximum | Building improvements |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Estimated useful lives |  |  | 35 years |  |  |  |  |
Maximum | Furniture, fixtures, equipment, and other assets |  |  |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |  |  |
Estimated useful lives |  |  | 10 years |  |  |  |  |
Adjustment | ASU 2016-02 |  |  |  |  |  |  |  |
Accounting policies |  |  |  |  |  |  |  |
Recognition of operating lease right-of-use assets |  |  |  |  |  |  | $ 94,300 |
Recognition of operating lease liabilities |  |  |  |  |  |  | 88,300 |
Prepaid rent and intangible assets |  |  |  |  |  |  | $ 6,000 |
Noncontrolling Interests |  |  |  |  |  |  |  |
Accounting policies |  |  |  |  |  |  |  |
Allocation of other comprehensive income/(loss) |  |  | $ (800) | $ 200 | $ 300 |  |  |

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