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CREDIT FACILITY - Interest expense and unused line of credit fees (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
CREDIT FACILITY
Interest expense	$ 3,969	$ 5,080	$ 2,994
Amortization of debt issuance costs	822	519	186
Unused line of credit fees and other	168	153	236
Total interest expense	$ 4,959	$ 5,752	$ 3,416

X

- Definition

Amount of amortization expense attributable to debt issuance costs.

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- Definition

Amount of commitment fees for the unused borrowing capacity under the long-term financing arrangement that is available to the entity.

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Interest and debt related expenses associated with nonoperating financing activities of the entity.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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