Accrued expenses and other liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Accrued expenses and other liabilities
Accrued customer liabilities	$ 20,167	$ 19,403
Accrued construction in progress	10,128	18,197
Revenue share	10,081	9,844
Accrued taxes	3,965	3,642
Salaries and wages	2,425	6,023
Accrued professional fees	806	1,196
Accrued partner network	531	687
Other	6,837	6,160
Total accrued expenses and other liabilities	$ 54,940	$ 65,152