Other Noncurrent Liabilities (Tables)

6 Months Ended

Jun. 30, 2021

Other Liabilities Disclosure [Abstract]

Schedule of Other Noncurrent Liabilities

The components of other noncurrent liabilities as of June 30, 2021 and December 31, 2020 were:

	June 30, 2021		December 31, 2020
Pension and retiree medical obligations	$	94,956	$	99,417
Transition tax payable	14,128		14,208
Liability for uncertain tax positions	949		1,071
Deferred revenue	35,239		30,354
Lease liability	91,950		94,250
Other	21,560		27,497
Total other noncurrent liabilities	$	258,782	$	266,797