Other Noncurrent Liabilities

6 Months Ended

Jun. 30, 2018

Other Liabilities Disclosure [Abstract]

Other Noncurrent Liabilities

Other Noncurrent Liabilities

The components of other noncurrent liabilities as of June 30, 2018 and December 31, 2017 were:

	June 30, 2018		December 31, 2017
Pension and retiree medical obligations	$	96,087	$	99,646
Transition tax payable	25,510		27,877
Liability for uncertain tax positions	1,047		1,047
Deferred revenue	3,269		3,297
Liability for construction of new leased facility	11,971		—
Other	22,958		23,818
Total other noncurrent liabilities	$	160,842	$	155,685