Restructuring charges are reported as a separate line within operating earnings in the Condensed Consolidated Statements of Earnings.

	Three Months Ended
	June 30, 2021		June 30, 2020
Restructuring charges	$	151	$	135

	Six Months Ended
	June 30, 2021		June 30, 2020
Restructuring charges	$	232	$	375

In September 2020, we initiated a restructuring plan focused on optimizing our manufacturing footprint and improving operational efficiency by better utilizing our systems capabilities (the "September 2020 Plan"). This plan includes transitioning certain administrative functions to a shared service center, realignment of manufacturing locations, and certain other efficiency improvement actions. The restructuring cost of the September 2020 Plan is estimated to be in the range of $4,600 to $6,000, including workforce reduction charges, building and equipment relocation charges and other contract and asset-related costs. In addition to these charges, we expect an additional $4,000 to $5,100 of other costs to be incurred related to initiatives that would not qualify as restructuring charges. These costs would include certain employee overlap and training costs as well as additional capital expenditures. Restructuring charges under the September 2020 Plan were $(10) during the three months ended June 30, 2021, consisting of $(10) in workforce reduction adjustments. Restructuring charges for the six months ended June 30, 2021 were $(27), consisting of $26 in workforce reduction costs and $(53) of other contract termination and facility closure cost true ups. The total restructuring liability related to the September 2020 Plan was $38 at June 30, 2021 and $512 at December 31, 2020.

In June 2016, we announced plans to restructure operations by phasing out production at our Elkhart, IN facility and transitioning it into a research and development center supporting our global operations (the "June 2016 Plan"). Additional organizational changes were also implemented in various other locations. In 2017, we revised the June 2016 Plan to include an additional $1,100 in planned costs related to the relocation of our corporate headquarters in Lisle, IL and our plant in Bolingbrook, IL, both of which have now been consolidated into a single facility. These restructuring actions were completed as of March 31, 2021.

In April 2014, we announced plans to restructure our operations and consolidate our Canadian operations into other existing facilities as part of our overall plan to simplify our business model and rationalize our global footprint (the “April 2014 Plan”). These restructuring actions were substantially completed during 2015 and the remaining liability was settled in the second quarter of 2021.

From time to time we undertake other restructuring activities that are not part of a formal plan. Charges associated with these restructuring activities primarily relate to workforce reduction costs. During the three and six months ended June 30, 2021 we incurred restructuring charges of $161 and $262, respectively. During the three and six months ended June 30, 2020, we incurred restructuring charges of $135 and $407, respectively. The total restructuring liability associated with these actions was $163 at June 30, 2021 and $9 at December 31, 2020.

The following table displays the restructuring liability activity included in accrued expenses and other liabilities for all plans for the six months ended June 30, 2021:

Restructuring liability at January 1, 2021	$	1,363
Restructuring charges		232
Cost paid		(1,242	)
Other activity⁽¹⁾		(152	)
Restructuring liability at June 30, 2021	$	201