Other Noncurrent Liabilities

3 Months Ended

Mar. 31, 2018

Other Liabilities Disclosure [Abstract]

Other Noncurrent Liabilities

Other Noncurrent Liabilities

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

	March 31, 2018		December 31, 2017
Pension and retiree medical obligations	$	100,491	$	99,646
Transition tax payable	27,877		27,877
Liability for uncertain tax positions	1,047		1,047
Deferred revenue	3,489		3,297
Liability for construction of new leased facility	5,801		—
Other	22,210		23,818
Total other noncurrent liabilities	$	160,915	$	155,685