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RESTRUCTURING AND OTHER CHARGES
 12 Months Ended
Dec. 31, 2014
Restructuring Charges [Abstract]  
Restructuring and Other Charges
RESTRUCTURING AND OTHER CHARGES
In December 2011, our management approved and initiated a cost reduction plan ("2011 Restructuring Plan") as part of a broad-based cost reduction initiative. The 2011 Restructuring Plan included the consolidation of our manufacturing and research and development facilities, including contract termination costs related to two vacant facilities; moving a portion of our outsourced spare parts logistics operations in-house; and workforce reductions.
The following table summarizes changes in our restructuring accrual for the years ended December 31, 2014, 2013 and 2012 (in thousands):
 
Employee
Severance
Costs
 
Contract
Termination
Costs
 
Other
Costs
 
Total
Balance at December 31, 2011
$
82

 
$
2,661

 
$
—

 
$
2,743

Restructuring charges (1)
4,011

 
355

 
704

 
5,070

Payments
(2,190
)
 
(1,420
)
 
(474
)
 
(4,084
)
Write-off of long-term assets (1)
—

 
—

 
(230
)
 
(230
)
Reserve adjustments
102

 
4

 
—

 
106

Balance at December 31, 2012
2,005

 
1,600

 
—

 
3,605

Restructuring charges
2,413

 
825

 
424

 
3,662

Payments
(4,406
)
 
(1,322
)
 
(399
)
 
(6,127
)
Reserve adjustments
(12
)
 
—

 
(25
)
 
(37
)
Balance at December 31, 2013
—

 
1,103

 
—

 
1,103

Restructuring charges
506

 
(94
)
 
—

 
412

Payments
(358
)
 
(739
)
 
—

 
(1,097
)
Reserve adjustments
(20
)
 
(32
)
 
—

 
(52
)
Balance at December 31, 2014
$
128

 
$
238

 
$
—

 
$
366

(1) During 2012, we recorded a $0.2 million charge related to impairment of property and equipment resulting from the transfer of our research, development and prototype production of the Millios system to our facility in Dornstadt, Germany and the consolidation of global manufacturing in our facility in Fremont, California.
For the year ended December 31, 2014, we recorded restructuring charges of $0.4 million, which included $0.5 million related to workforce reductions and a $0.1 million benefit from a revised estimate of our future rent obligations for one of our vacant facilities. We paid $0.4 million in employee severance and $0.7 million in contract termination costs during 2014.
For the year ended December 31, 2013, we recorded restructuring charges of $3.7 million, which included $2.8 million in employee severance and other costs relating primarily to recruiting costs for our new chief executive officer and severance expense for our former chief executive officer totaling approximately $0.6 million, and other workforce reductions. We also incurred $0.8 million in contract termination costs related to future rent obligations, net of sublease income, associated with two vacated leased facilities. We paid $4.8 million in employee severance and other costs and $1.3 million in contract termination costs during 2013.
For the year ended December 31, 2012, we recorded restructuring charges of $5.1 million, which included $4.7 million in employee severance and other costs and $0.4 million in contract termination costs. We paid $2.7 million in employee severance and other costs and $1.4 million contract termination costs during 2012.
As of December 31, 2014, we had $0.4 million in accrued restructuring charges, which was classified within other current liabilities in our consolidated balance sheet. As of December 31, 2013, we had $1.1 million in accrued restructuring charges, of which $0.8 million was classified within other current liabilities and $0.3 million was classified within other liabilities in the consolidated balance sheet.
We plan to make payments related to the remaining accrued restructuring charges throughout 2015.