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Summary of Significant Accounting Policies (Tables)
 9 Months Ended
Sep. 30, 2014
Accounting Policies [Abstract]  
Components of inventories
Inventories consisted of the following:
 
September 30,
2014
 
December 31,
2013
Raw materials and parts
$
99,949

 
$
98,244

Work-in-progress
41,120

 
38,061

Finished goods
78,645

 
74,109

 
$
219,714

 
$
210,414
Components of other intangible assets
Other intangible assets consisted of the following:
 
September 30, 2014
 
December 31, 2013
 
Gross
Amount
 
Accumulated
Amortization
 
Intangibles, Net
 
Gross
Amount
 
Accumulated
Amortization
 
Intangibles, Net
Customer relationships
$
99,229

 
$
(27,596
)
 
$
71,633

 
$
98,374

 
$
(25,313
)
 
$
73,061

Proven technology and patents
42,005

 
(30,492
)
 
11,513

 
43,233

 
(29,763
)
 
13,470

Tradename (finite life)
4,192

 
(1,759
)
 
2,433

 
4,300

 
(1,619
)
 
2,681

Tradename (indefinite life)
25,004

 
—

 
25,004

 
25,108

 
—

 
25,108

Other
1,582

 
(951
)
 
631

 
757

 
(659
)
 
98

 
$
172,012

 
$
(60,798
)
 
$
111,214

 
$
171,772

 
$
(57,354
)
 
$
114,418
Changes to the Company's accrual for product warranties
Changes to the Company’s accrual for product warranties for the nine months ended September 30 are as follows:
 
September 30,
2014
 
September 30,
2013
Balance at beginning of period
$
16,991

 
$
16,295

Accruals for warranties
14,737

 
14,246

Foreign currency translation
(409
)
 
20

Payments / utilizations
(15,278
)
 
(14,354
)
Balance at end of period
$
16,041

 
$
16,207