Detail of Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other current liabilities
Accrued warranty costs	$ 8,914	$ 7,452
Current lease liability	16,586	14,016
Operating lease liability	97,162	86,713
Accrued job losses	2,151	2,226
Accrued sales and use tax	3,731	2,938
Deferred revenue	4,559	5,506
Liabilities due to former owners	10,280	11,219
Other current liabilities	45,271	38,273
Total other current liabilities	$ 91,492	$ 81,630