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Fair Value Measurements (Details 3) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Fair Value Measurements
Beginning balance	$ 0	$ 175
Additions	746
Cash payments	0	(54)
Adjustment	0	(121)
Ending balance	$ 746	$ 0

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- References

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- Definition

Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties.

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