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Accrued Liabilities
 12 Months Ended
Dec. 31, 2012
Text Block [Abstract]  
Accrued Liabilities
Accrued Liabilities
Accrued liabilities consist of: 
(in thousands) December 31,
2012

 
2011

Employee related expenses
$
90,911

 
$
97,297

Warranty
10,718

 
16,379

Other
119,049

 
113,041

Total
$
220,678

 
$
226,717


The Company accrues warranty liabilities when it is probable that an asset has been impaired or a liability has been incurred and the amount of the loss can be reasonably estimated. Warranty provision is included in cost of sales in the Consolidated Statements of Operations.
A summary of the warranty liabilities is as follows:
(in thousands) December 31,
2012

 
2011

Balance at beginning of period
$
16,379

 
$
19,198

Expense
6,190

 
6,759

Changes due to acquisitions/divestitures
(498
)
 
11

Payments / deductions
(11,426
)
 
(9,545
)
Currency translation
73

 
(44
)
Balance at end of period
$
10,718

 
$
16,379