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Leases - Additional information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019
Leases
Operating Lease, Weighted Average Discount Rate, Percent	4.25%	4.25%
Operating Lease, Weighted Average Remaining Lease Term	4 years 7 months 17 days	4 years 7 months 17 days
Impairment of operating lease right-of-use assets	$ 1,200	$ 1,200
impairment of long-lived assets	$ 3,100	$ 3,055	$ 0

X

- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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- Definition

Amount of loss from impairment of right-of-use asset from operating lease.

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X

- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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