In December 2011, we initiated a restructuring plan (the "2011 Building Products Restructuring Plan") that consisted of: (i) the shutdown of a plant in Milford, Indiana; (ii) discontinuing the fence product line; and (iii) the consolidation of three plants, two in the window and door profiles business and one in the pipe business. In connection with the 2011 Building Products Restructuring Plan, we incurred costs related to termination benefits, including severance, operating lease termination costs, asset impairment charges, relocation, and other exit costs. For the three months ended March 31, 2012, severance and other exit costs were approximately $0.1 million and are included in gain on sale of assets, restructuring expense and other, net, in the consolidated statements of income.

In the fourth quarter of 2008, we initiated a restructuring plan (the "Fourth Quarter 2008 Restructuring Plan") that included the permanent shut down of our 450 million pound polyvinyl chloride ("PVC") manufacturing facility in Sarnia, Ontario, the exit of a recycled PVC compound manufacturing facility in Woodbridge, Ontario, the consolidation of various manufacturing facilities, and elimination of certain duplicative activities in our operations. In connection with the Fourth Quarter 2008 Restructuring Plan, we incurred costs related to termination benefits, including severance, pension and postretirement benefits, operating lease termination costs, asset impairment charges, relocation and other exit costs. For the three months ended March 31, 2012, there were no restructuring costs and we do not expect there to be any further costs associated with this plan. For the three months ended March 31, 2011, we incurred and paid $0.6 million related to the settlement of pension and postretirement benefits from our permanently shut down PVC manufacturing facility in Sarnia.

The expenses associated with the 2011 Building Products Restructuring Plan and Fourth Quarter 2008 Restructuring Plan, for the three months ended March 31, 2012 and 2011 for severance and other exit costs were approximately $0.1 million and $0.6 million, respectively, and are included in gain on sale of assets, restructuring expense and other, net, in the consolidated statements of income. A summary of our restructuring activities recognized as a result of the 2011 Building Products Restructuring Plan and Fourth Quarter 2008 Restructuring Plan by reportable segment for the three months ended March 31, 2012 and 2011 is as follows:

(In thousands)	Balance at December 31, 2011		Additions			Cash Payments			Foreign Exchange and Other Adjustments		Balance at March 31, 2012

Chlorovinyls
Fourth Quarter 2008 Restructuring Plan:
Involuntary termination benefits	$	69	$	—		$	—		$	1	$	70
Building Products
Fourth Quarter 2008 Restructuring Plan:
Involuntary termination benefits		898		—			—			18		916
Fourth Quarter 2011 Restructuring Plan:
Involuntary termination benefits		2,061		113			(332	)		33		1,875
Other
Involuntary termination benefits		221		(5	)		(54	)		1		163
Corporate
Fourth Quarter 2008 Restructuring Plan:
Involuntary termination benefits		154		—			—			3		157

Total	$	3,403	$	108		$	(386	)	$	56	$	3,181

(In thousands)	Balance at December 31, 2010		Additions			Cash Payments			Foreign Exchange and Other Adjustments		Balance at March 31, 2011

Chlorovinyls
Fourth Quarter 2008 Restructuring Plan:
Involuntary termination benefits	$	108	$	634		$	(789	)	$	136	$	89
Exit costs		130		—			—			4		134
Building Products
Fourth Quarter 2008 Restructuring Plan:
Involuntary termination benefits		1,168		(52	)		(179	)		21		958
Other
Involuntary termination benefits		86		—			(24	)		1		63
Corporate
Fourth Quarter 2008 Restructuring Plan:
Involuntary termination benefits		156		—			—			5		161

Total	$	1,648	$	582		$	(992	)	$	167	$	1,405

For the three months ended March 31, 2012, there was a $0.3 million net reversal of impairment of tangible long-lived assets incurred in December 2011. The reversal was due to the value at which equipment from our Milford, Indiana facility was sold that exceeded our initial fair value assessment in connection with our restructuring activities as a result of the 2011 Building Products Restructuring Plan. This reversal of impairment charges is included in gain on sale of assets, restructuring expense and other, net, in the condensed consolidated statement of income for the three months ended March 31, 2012. In addition, we have incurred $4.9 million in professional fees associated with an unsolicited offer to acquire the company that is included in gain on sale of assets, restructuring expense and other, net, in the condensed consolidated statement of income for the three months ended March 31, 2012. There were no impairment charges for tangible long-lived assets for the three months ended March 31, 2011.