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SENIOR NOTES, NET - Schedule of Senior and Convertible Senior Notes (Descriptors) (Details) - Senior Notes [Member] - USD ($) | Dec. 31, 2021 | Dec. 31, 2020 | Jun. 30, 2015
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6.00% senior notes due 2025 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Aggregate Principal | $ 200,000,000 |  | $ 200,000,000
Debt instrument, stated rate | 6.00% | 6.00% | 6.00%
Unamortized premium |  | $ 0 |
Senior Notes Due Two Thousand Twenty Five, Combined Amount [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Aggregate Principal | $ 400,000,000 |  |
Debt instrument, stated rate | 6.00% | 6.00% |
Unamortized premium | $ 2,795,000 | $ 3,614,000 |

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