Intangible assets - Schedule of Intangibles (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 23,638	$ 15,759
Accumulated Amortization	(5,135)	(3,424)
Net Carrying Value	18,503	12,335
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	11,289	8,422
Accumulated Amortization	(2,733)	(2,020)
Net Carrying Value	8,556	6,402
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	12,349	7,337
Accumulated Amortization	(2,402)	(1,404)
Net Carrying Value	$ 9,947	$ 5,933