Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Goodwill [Roll Forward]
Goodwill, Beginning Balance			$ 73,311
Goodwill, Impairment Loss	$ 0	$ 0	(10,187)	$ 0
Goodwill, Ending Balance	63,124		63,124
Goodwill impairment	$ 0	$ 0	$ 10,187	$ 0

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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