Leases

3 Months Ended

Mar. 31, 2020

Leases [Abstract]

Leases

16. LEASES

We have operating leases primarily consisting of offices and lab space, machinery and equipment and vehicles. The components of lease expense are as follows (in thousands):

	Three months ended
	March 31, 2020			March 31, 2019
Lease Cost
Operating lease cost	$	4,340		$	4,752
Short-term lease cost		462			294
Variable lease cost		423			119
Total lease cost	$	5,225		$	5,165
Other Information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	4,336		$	4,597
Right-of-use assets obtained in exchange for new lease liabilities	$	3,073		$	3,670
Weighted-average remaining lease term- operating leases	8.79 years			9.21 years
Weighted-average discount rate - operating leases		4.99	%		5.01	%

Scheduled undiscounted cash flows for non-cancellable leases at March 31, 2020 consist of the following (in thousands):

	Operating Leases
Remainder of 2020	$	11,599
2021		13,163
2022		11,453
2023		9,827
2024		7,702
Thereafter		36,563
Total undiscounted lease payments	$	90,307
Less:  Imputed Interest		(17,562	)
Total lease liabilities	$	72,745

The Company has elected to apply the short-term lease exemption to all of its classes of underlying assets. Accordingly, no ROU asset or lease liability is recognized for leases with a term of twelve months or less.

The Company has elected to apply the practical expedient for combining lease and non-lease components for vehicle leases and elected not to apply the practical expedient for combining lease and non-lease components to all other classes of underlying assets.