Annual report pursuant to Section 13 and 15(d)

Restructuring Costs (Details)

v3.19.3.a.u2
Restructuring Costs (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Restructuring and Related Activities [Abstract]        
Workforce reduction 13.00% 13.00%    
Restructuring costs $ 4,600 $ 4,611 $ 0 $ 0
Liabilities $ 200 $ 200