Operating lease liability maturities (Details) $ in Thousands	Jun. 30, 2020 USD ($)
Lessee Disclosure [Abstract]
Operating lease liability payments, due 2020 (remaining after June 30, 2020)	$ 7,161
Operating lease liability payments, due 2021	12,938
Operating lease liability payments, due 2022	5,948
Operating lease liability payments, due 2023	3,602
Operating lease liability payments, due 2024	2,081
Operating lease liability payments, due thereafter	1,640
Total lease payments	33,370
Imputed interest	(3,340)	[1]
Total operating lease liability	$ 30,030
Weighted-average discount rate	6.90%

[1] ⁽¹⁾ The weighted-average discount rate used to determine the operating lease liability as of June 30, 2020, was 6.9 percent.