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Summary of Significant Accounting Policies (Tables)
 3 Months Ended
Mar. 31, 2016
Accounting Policies [Abstract]  
Components of inventories
Inventories consisted of the following:
 
March 31,
2016
 
December 31,
2015
Raw materials and parts
$
101,759

 
$
98,252

Work-in-progress
39,835

 
35,100

Finished goods
85,729

 
81,031

 
$
227,323

 
$
214,383
Components of other intangible assets
Other intangible assets consisted of the following:
 
March 31, 2016
 
December 31, 2015
 
Gross
Amount
 
Accumulated
Amortization
 
Intangibles, Net
 
Gross
Amount
 
Accumulated
Amortization
 
Intangibles, Net
Customer relationships
$
99,264

 
$
(31,892
)
 
$
67,372

 
$
98,175

 
$
(30,836
)
 
$
67,339

Proven technology and patents
54,722

 
(33,470
)
 
21,252

 
52,938

 
(32,444
)
 
20,494

Tradename (finite life)
4,327

 
(2,200
)
 
2,127

 
4,200

 
(2,158
)
 
2,042

Tradename (indefinite life)
24,815

 
—

 
24,815

 
24,814

 
—

 
24,814

Other
2,146

 
(1,722
)
 
424

 
2,111

 
(1,548
)
 
563

 
$
185,274

 
$
(69,284
)
 
$
115,990

 
$
182,238

 
$
(66,986
)
 
$
115,252