Other Non-Operating Income (Expense) (Tables)

12 Months Ended

Dec. 31, 2018

Other Nonoperating Income (Expense) [Abstract]

Summary of Other Non-Operating Income (Expense)

A summary of non-operating income (expense) is as follows:

	Year Ended December 31
(in thousands)	2018			2017			2016
Loss on guarantor obligations	$	(17,518	)	$	—		$	—
Net gain on cost method investments	11,663			—			—
Net gain (loss) on sales of businesses	8,157			(569		)	18,931
Foreign currency (loss) gain, net	(3,844		)	3,310			(39,890		)
Gain on sale of cost method investments	2,845			16			794
Impairment of cost method investments	(2,697		)	(200		)	(29,365		)
Net gain on sale of property, plant and equipment	2,539			—			34,072
Gain on formation of a joint venture	—			—			3,232
Net losses on sales or write-down of marketable equity securities	—			—			(1,791		)
Other, net	958			1,684			1,375
Total Other Non-Operating Income (Expense)	$	2,103		$	4,241		$	(12,642	)