Commitments, contingencies and guarantees (Tables)

6 Months Ended

Jun. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Components of Lease Expense [Text Block]

The components of net lease cost, which were recorded in operating expenses, were as follows:

	Three months ended June 30,				Six months ended June 30,
(in thousands)	2021		2020		2021		2020
Operating lease cost (1)	$	2,892	$	4,088	$	5,988	$	8,295
Sublease income	(100)		(131)		(233)		(260)
Net lease cost	$	2,792	$	3,957	$	5,755	$	8,035

(1)    Operating lease cost includes variable lease costs, which are immaterial.

Schedule of Supplemental Cash Flow Information Related To Leases [Text Block]

Supplemental cash flow information related to leases was as follows:

	Six months ended June 30,
(in thousands)	2021		2020
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	7,493	$	7,441
Right-of-use assets obtained in exchange for operating lease liabilities	1,018		147

Supplemental balance sheet information related to leases was as follows:

	June 30, 2021	December 31, 2020
Weighted-average remaining lease term (in years) - operating leases	5.12	5.53
Weighted-average discount rate - operating leases	6.1%	6.2%

Schedule of Maturities of Lease Liabilities [Text Block]

As of June 30, 2021, maturities of operating lease liabilities were as follows:

(in thousands)	June 30, 2021
2021 (remaining 6 months)	$	5,479
2022	13,312
2023	12,124
2024	11,686
2025	11,477
Thereafter	12,683
Total lease payments	66,761
Less: Imputed interest	(10,286)
Present value of lease liabilities	$	56,475