v3.21.2

REDEMPTION SETTLEMENT ASSETS, RESTRICTED - Amortized cost, unrealized gains and losses, and fair value of securities available-for-sale (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | $ 641,820 | $ 592,247
Unrealized Gains | 10,257 | 19,110
Unrealized Losses | (2,541) | (173)
Fair Value | 649,536 | 611,184
Corporate bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 641,820 | 592,247
Unrealized Gains | 10,257 | 19,110
Unrealized Losses | (2,541) | (173)
Fair Value | $ 649,536 | $ 611,184

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