Leases

3 Months Ended

Mar. 31, 2021

Leases [Abstract]

Leases

14. 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,
	2021			2020
Operating lease expense	$	4,349		$	4,340
Short-term lease expense		371			462
Variable lease expense		432			423
Total lease expense	$	5,152		$	5,225
Other information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	3,919		$	4,336
Right-of-use assets obtained in exchange for new lease obligations:
Operating leases	$	1,881		$	3,073
Weighted-average remaining lease term- operating leases	8.32 years			8.79 years
Weighted-average discount rate - operating leases		4.59	%		4.99	%

Scheduled undiscounted lease payments for non-cancellable leases consist of the following (in thousands):

	March 31, 2021
Remainder of 2021	$	11,309
2022		13,537
2023		11,413
2024		9,151
2025		8,071
Thereafter		33,196
Total undiscounted lease payments		86,677
Less:  Imputed interest		(15,685	)
Total operating lease liabilities	$	70,992