
	2021		2020
Deferred Tax Assets:
Net operating loss carryforwards	$	47,660	$	19,353
Operating and finance leases	22,492		24,529
Pension liabilities	29,770		36,085
Share-based compensation	6,764		5,946
U.S. federal tax credits	4,226		8,826
U.S. state tax credits	7,047		7,011
Vacation and bonus	13,450		12,307
Research and development	19,633		8,992
Inventory	6,969		4,854
Workers compensation	3,109		3,353
Other	16,194		16,643
Total gross deferred tax assets	$	177,314	$	147,899
Less valuation allowance	(47,149)		(23,105)
Net deferred tax assets	$	130,165	$	124,794
Deferred Tax Liabilities:
Acquisition related intangibles	$	68,174	$	57,295
Depreciation and amortization	30,997		27,737
Operating and finance leases	24,560		26,549
Other	7,489		8,044
Total gross deferred tax liabilities	$	131,220	$	119,625
Net deferred tax assets (liabilities)	$	(1,055)	$	5,169

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