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Summary of Significant Accounting Policies Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2015
Accounting Policies [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
The activity in the Company’s warranty liability, which is included in Accrued liabilities and Other liabilities in the Company’s Consolidated Financial Statements, consisted of the following:

 
Year Ended December 31,
 
2015
 
2014
 
(In thousands)
Warranty liability, beginning of period
$
51,135

 
$
65,512

Accrued warranty expense
21,092

 
23,019

Changes in estimates related to pre-existing warranties
(1,820
)
 
(9,966
)
Cost of warranty service work performed
(29,342
)
 
(27,389
)
Acquisitions
321

 
4,488

Foreign exchange translation effect
(3,979
)
 
(4,529
)
Warranty liability, end of period
$
37,407

 
$
51,135