Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Components of inventories

Inventories consisted of the following:

	September 30, 2020		December 31, 2019
Raw materials and parts	$	130,478	$	129,294
Work-in-progress	51,989		43,202
Finished goods	109,862		101,789
	$	292,329	$	274,285

Components of other intangible assets

Other intangible assets consisted of the following:

	September 30, 2020						December 31, 2019
	Gross Amount		Accumulated Amortization		Intangibles, Net		Gross Amount		Accumulated Amortization		Intangibles, Net
Customer relationships	$	200,528	$	(65,555)	$	134,973	$	197,764	$	(58,851)	$	138,913
Proven technology and patents	76,689		(50,223)		26,466		75,170		(46,532)		28,638
Tradenames (finite life)	4,657		(3,258)		1,399		4,594		(3,124)		1,470
Tradenames (indefinite life)	35,524		—		35,524		35,474		—		35,474
Other	5,201		(4,412)		789		5,462		(3,715)		1,747
	$	322,599	$	(123,448)	$	199,151	$	318,464	$	(112,222)	$	206,242