Other Expense, net

Items included in other expense, net consist of:



	Three Months Ended September 30,					Nine Months Ended September 30,
(in millions)	2018			2017		2018			2017
Restructuring expense	$	5.7		$	13.3	$	44.4		$	13.3
Merger, acquisition and divestiture expense	1.6			6.4		4.8			6.4
Lease termination settlement	—			—		—			5.3
Other (income) expense	(0.2		)	2.3		(6.8		)	2.5
Other expense, net	$	7.1		$	22.0	$	42.4		$	27.5

During the three and nine months ended September 30, 2018, the Company recorded restructuring expense of $5.7 million and $44.4 million, respectively. During the three and nine months ended September 30, 2017, the Company recorded restructuring expense of $13.3 million. These restructuring expenses primarily relate to Drivetrain and Engine segment actions designed to improve future profitability and competitiveness. See the Restructuring footnote to the Condensed Consolidated Financial Statements for further discussion of these expenses.

During the three and nine months ended September 30, 2018, the Company recorded $1.6 million and $4.8 million of merger, acquisition and divestiture expense primarily related to professional fees associated with divestiture activities for the non-core pipe and thermostat product lines, respectively. See the Assets and Liabilities Held for Sale footnote to the Condensed Consolidated Financial Statements for further discussion.

On September 27, 2017, the Company acquired 100% of the equity interests of Sevcon, Inc. ("Sevcon"), a global player in electrification technologies, serving customers in the U.S., U.K., France, Germany, Italy, China and the Asia Pacific region. As a result, the Company recorded $6.4 million of transaction related professional fees during the three months ended September 30, 2017. See the Recent Transactions footnote to the Condensed Consolidated Financial Statements for further discussion.

During the first three months of 2017, the Company recorded a loss of $5.3 million related to the termination of a long-term property lease for a manufacturing facility located in Europe.

During the first three months of 2018, the Company recorded a gain of approximately $4.0 million related to the settlement of a commercial contract for an entity acquired in the 2015 Remy acquisition.