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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Restricted Cash, Loan Costs and Other Assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |  |
Long-Lived Assets held for sale, timing of expected sale | 1 year |
Loan procurement costs |  |
Loan procurement costs | $ 21,400 | $ 24,700
Loan procurement costs, accumulated amortization | 11,100 | 9,700
Other Assets |  |
Intangible assets, net of accumulated amortization of $1,532 and $8,109 | 1,716 | 8,280
Accounts receivable | 5,498 | 4,434
Deposits on future acquisitions | 1,000 | 5,106
Prepaid real estate taxes | 3,960 | 3,640
Prepaid insurance | 2,105 | 1,053
Amounts due from affiliates (see note 13) | 7,480 | 3,349
Assets held in trust related to deferred compensation arrangements | 9,393 | 6,748
Others | 3,438 | 3,904
Total | 34,590 | 36,514
Accumulated amortization | $ 1,532 | $ 8,109

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