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Stock Based Compensation - Unrecognized Compensation Costs Related to Non-vested Awards (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested awards, stock options	$ 297
Weighted - average recognition period (in years)	1 year 7 days
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested awards, restricted stock awards and RSU's	$ 2,988
Weighted - average recognition period (in years)	8 months 4 days
PRSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested awards, restricted stock awards and RSU's	$ 10,191
Weighted - average recognition period (in years)	3 years 2 months 23 days

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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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