Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Right-of-use asset	$ 6,599
Long term sales-type lease receivable	2,501
Long term sales-type lease receivable		$ 3,286
Long term investments	0	10,082
Other long term receivable	3,061	3,452
Total other assets	$ 12,161	$ 16,820