Revenue, Deferred Revenue and Deferred Costs and Other - Accrued Rebates (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019
Change In Accrued Rebate [Roll Forward]
Beginning balance as of January 1, 2019	$ 609
ASC 606 adoption date impact adjustment	1,152
Amount deferred	945
Revenue recognized	0
Payments	(180)
Ending balance as of December 31, 2019	$ 1,152
Impact of Adoption | ASC 606
Change In Accrued Rebate [Roll Forward]
ASC 606 adoption date impact adjustment		$ (222)