Other Non-Operating (Expense) Income (Tables)

12 Months Ended

Dec. 31, 2017

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)	2017			2016			2015
Foreign currency gain (losses), net	$	3,310		$	(39,890	)	$	(15,564	)
Net (loss) gain on sales of businesses	(569		)	18,931			(23,335		)
Net losses on sales or write-downs of cost method investments	(184		)	(28,571		)	(1,124		)
Gain on sale of property, plant and equipment	—			34,072			21,379
Gain on formation of a joint venture	—			3,232			5,972
Gain on sale of Classified Ventures	—			—			4,827
Net losses on sales or write-down of marketable equity securities	—			(1,791		)	(14		)
Other, net	1,684			1,375			(764		)
Total Other Non-Operating Income (Expense)	$	4,241		$	(12,642	)	$	(8,623	)