Note 8 - Leases (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Assets and Liabilities, Lease [Table Text Block]

Classification on the Balance Sheet	Classification of Lease	December 31,
		2020		2019
Assets		(in thousands)
Operating lease - right of use asset	Operating leases	$	44,838	$	40,551
Property and equipment, net	Finance leases		131		1,299
Total lease assets		$	44,969	$	41,850
Liabilities
Current
Operating lease liabilities, current	Operating leases	$	11,672	$	7,663
Accrued liabilities	Finance leases		64		124
Noncurrent
Operating lease liabilities, noncurrent	Operating leases		45,700		44,015
Other noncurrent liabilities	Finance leases		—		54
Total lease liabilities		$	57,436	$	51,856

Lessee, Operating Lease, Supplemental Cash Flow Disclosure [Table Text Block]

	Year Ended December 31,
	2020		2019
	(in thousands)
Operating cash flows included in the measurement of lease liabilities		13,403		9,372
Lease liabilities arising from obtaining right of use assets		15,837		17,359

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

		(in thousands)
2021	$	14,186
2022		13,316
2023		11,297
2024		10,010
2025		6,407
2026 and thereafter		10,317
Total minimum lease payments		65,533
Less: amount representing interest		(8,161	)
Present value of minimum payments		57,372
Less: lease obligations, current		(11,672	)
Lease obligations, noncurrent	$	45,700

Lessee, Weighted Average Remaining Lease Term and Weighted Average Discount Rate [Table Text Block]

	December 31,
	2020			2019
Weighted average remaining lease term (years)
Operating leases		4.1			6.5
Finance leases		0.1			1.3
Weighted average discount rates
Operating leases		4.8	%		5.0	%
Finance leases		5.0	%		5.0	%