Other Charges

12 Months Ended

Dec. 31, 2019

Other Income and Expenses [Abstract]

Other Charges

Other Charges

We account for expenses associated with our acquisitions and activity associated with certain ongoing litigation as other charges as incurred. These expenses were primarily a result of activities surrounding our acquisitions and legal fees related to patent litigation in which we are the plaintiff. Integration costs are primarily due to employee-related costs. Other charges are costs that are not considered necessary to the ongoing business operations. 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

During our intangible asset impairment testing for the year ended December 31, 2017, considering the LifeWatch integration and forward-looking integration plans, we determined that certain trade names and certain internally developed software were no longer going to be used and were therefore impaired, resulting in impairment charges included within the Corporate and Other category. There were no other asset impairments for the year ended December 31, 2017, and no intangible asset impairments for the years ended December 31, 2019 and 2018. See “Note 8. Goodwill and Intangible Assets” above.

In October 2019, we detected suspicious activity on our information technology network. As part of our comprehensive response plan, we immediately took certain systems offline to contain the activity and engaged an outside forensics team to conduct an independent investigation. As a result of the information technology incident, we incurred approximately $3.0 million of direct expenses in the fourth quarter of 2019.

In 2018, we recorded a reserve for a note receivable with a bankrupt customer.

For the year ended December 31, 2019, the change in fair value of acquisition-related contingent consideration relates to our Geneva acquisition. For the year ended December 31, 2018 , the change relates to our Telcare acquisition, while the change for the year ended December 31, 2017 relates to both our Telcare and ePatch acquisitions.