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MERGER AND SELF-MANAGEMENT TRANSACTION - Class M OP Units Conversion (Details) $ / shares in Units, $ in Millions | 12 Months Ended
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Dec. 31, 2019 USD ($) $ / shares
Initial Conversion Ratio |
Conversion of Stock [Line Items] |
Conversion ratio | 0.20
Fiscal Year 2021 |
Conversion of Stock [Line Items] |
AUM conversion threshold | $ | $ 860
AFFO conversion threshold (in usd per share) | $ / shares | $ 0.59
Conversion ratio | 0.17
Fiscal Year 2022 |
Conversion of Stock [Line Items] |
AUM conversion threshold | $ | $ 1,175
AFFO conversion threshold (in usd per share) | $ / shares | $ 0.65
Conversion ratio | 0.13
Fiscal Year 2023 |
Conversion of Stock [Line Items] |
AUM conversion threshold | $ | $ 1,551
AFFO conversion threshold (in usd per share) | $ / shares | $ 0.70
Conversion ratio | 0.11

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