CERTAIN BALANCE SHEET COMPONENTS (Tables)

12 Months Ended

Dec. 31, 2022

Balance Sheet Related Disclosures [Abstract]

Schedule of Inventories

Inventories:	December 31,
(in thousands)	2022		2021
Finished goods	$	65,308	$	37,545
Raw materials	46,081		22,245
Work-in-process	3,251		3,993
Service-related spares	6,309		7,412
Total	$	120,949	$	71,195

Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets:	December 31,
(in thousands)	2022		2021
Prepaid expenses	$	5,558	$	8,074
Contract assets (1)	5,583		8,101
Other current assets	15,196		13,797
Total	$	26,337	$	29,972

(1) Contract assets reflect the satisfied performance obligations for which the Company does not yet have an unconditional right to consideration.

Schedule of Property and Equipment, Net

Property and equipment, net:	December 31,
(in thousands)	2022		2021
Machinery and equipment	$	75,589	$	78,461
Capitalized software	30,588		38,306
Leasehold improvements	39,199		40,658
Furniture and fixtures	2,739		2,820
Construction-in-progress	2,691		1,892
Property and equipment, gross	150,806		162,137
Less: accumulated depreciation and amortization	(110,992)		(119,416)
Total	$	39,814	$	42,721

Schedule of Other Current Liabilities

Other current liabilities:	December 31,
(in thousands)	2022		2021
Accrued employee compensation and related expenses	$	29,675	$	26,820
Other	37,049		26,824
Total	$	66,724	$	53,644