Other Charges (Tables)

12 Months Ended

Dec. 31, 2019

Other Income and Expenses [Abstract]

Summary of expenses

A summary of these expenses is as follows:

	Year Ended December 31,
(in thousands)	2019			2018			2017
Asset impairment charges	$	—		$	—		$	12,045
Acquisition and integration costs	4,863			10,089			18,656
Information technology incident costs	2,992			—			—
Reserve for note receivable	—			1,793			—
Change in fair value of acquisition-related contingent consideration	(230		)	(700		)	(2,605		)
Patent and other litigation	7,019			2,583			1,185
Other costs	360			894			2,155
Total	$	15,004		$	14,659		$	31,436