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Leases - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Lessee, Lease, Description [Line Items]
Asset impairment	$ 2,107	$ 0
Payments related to options to extend lease terms	0
Abandonment of leased office space | Occupancy
Lessee, Lease, Description [Line Items]
Asset impairment	2,100
Impairment of long-lived assets held-for-use	1,500
Impairment of long-lived assets to be disposed of	$ 600

X

- Definition

Lessee, Operating Lease, Lease Not Yet Commenced, Option To Extend, Value

+ References

No definition available.

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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).

+ References

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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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- Definition

The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.

+ References

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