INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred Tax Assets:
Net operating loss carryforwards	$ 49,016	$ 45,823
Operating and finance leases	20,440	20,974
Pension liabilities	13,608	8,178
Share-based compensation	7,326	9,970
U.S. state tax credits	6,110	6,777
Vacation and bonus	16,915	14,681
U.S. capitalized research expenditures	35,563	27,840
Inventory	7,166	4,736
Accrued liabilities and other reserves	9,622	10,346
Other	16,470	11,744
Total gross deferred tax assets	182,236	161,069
Less valuation allowance	(48,856)	(46,239)
Net deferred tax assets	133,380	114,830
Deferred Tax Liabilities:
Acquisition related intangibles	57,426	59,084
Depreciation and amortization	25,541	29,142
Operating and finance leases	22,715	23,041
Other	6,988	6,563
Total gross deferred tax liabilities	112,670	117,830
Net deferred tax assets	$ 20,710
Net deferred tax liabilities		$ (3,000)