Disposal of Business - Summary of Gain from Disposal (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2019
Net gain realized on disposal	$ 14,400	$ 14,388
Evercord
Proceeds on disposal:	15,400	15,377
Accounts receivable, net	$ 1,000	5,782
Equipment and inventory		419
Total assets sold		6,201
Deferred revenues		5,212
Net assets and liabilities sold		989
Net gain realized on disposal		$ 14,388