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LOANS PAYABLE - Narrative (Details) |  |  | 1 Months Ended | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Aug. 31, 2015 | Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($) | Aug. 23, 2019 USD ($) | May 31, 2018 USD ($) | Apr. 30, 2018 GBP (£)
Bank of America | Revolving Credit Facility |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Line of credit, maximum borrowing capacity |  |  |  |  |  | $ 100,000,000 |  |
Outstanding line of credit |  |  |  | $ 0 |  |  |  |
LIBOR | Bank of America | Revolving Credit Facility |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  | 1.00% |  |  |  |  |
2019 Line of Credit, Expansion Option | Bank of America | Revolving Credit Facility |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Line of credit, maximum borrowing capacity |  |  |  |  |  | $ 200,000,000 |  |
Loans Payable | Non Interest Bearing Unsecured Convertible Loan |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Interest on debt |  |  |  | 21,000 | $ 59,000 |  |  |
Loans payable, face amount | $ 4,500,000 |  |  | 20,300,000 |  |  |  | £ 10,500,000
Debt instrument, exchange period | 3 years |  |  |  |  |  |  |
Loans Payable | 2.88% Loans Payable |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Interest on debt |  |  |  | 18,000 | 26,000 |  |  |
Stated interest rate (as a percent) |  |  |  |  |  |  | 2.88% |
Loans payable, face amount |  |  |  |  |  |  | $ 2,800,000 |
Loans Payable | 2.75% Loans Payable |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Interest on debt |  |  |  | 20,000 | $ 19,000 |  |  |
Stated interest rate (as a percent) |  | 2.75% |  |  |  |  |  |
Loans payable, face amount |  | $ 4,000,000 |  |  |  |  |  |
Debt instrument, exchange period |  | 4 years |  |  |  |  |  |
Loans Payable | Former Shareholders |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Interest on debt |  |  |  | $ 3,000 |  |  |  |
Stated interest rate (as a percent) |  |  |  | 2.25% | 1.41% |  |  |
Baylor Klein, Ltd |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Contingent consideration |  |  |  | $ 16,700,000 |  |  |  |

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