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Summary of Significant Accounting Policies (Tables)
 3 Months Ended
Mar. 31, 2022
Accounting Policies [Abstract]  
Components of inventories Inventories consisted of the following:
March 31,
2022		December 31,
2021
Raw materials and parts$199,933 $184,624 
Work-in-progress84,081 76,019 
Finished goods162,476 153,900 
 $446,490 $414,543 
Components of other intangible assets Other intangible assets consisted of the following:
 March 31, 2022December 31, 2021
Gross
Amount		Accumulated
Amortization		Intangibles, NetGross
Amount		Accumulated
Amortization		Intangibles, Net
Customer relationships$285,764 $(82,997)$202,767 $282,470 $(79,782)$202,688 
Proven technology and patents112,613 (57,775)54,838 115,680 (56,305)59,375 
Trade name (finite life)7,425 (2,927)4,498 8,206 (3,731)4,475 
Trade name (indefinite life)35,903 — 35,903 35,949 — 35,949 
Other13,056 (5,983)7,073 10,641 (5,678)4,963 
 $454,761 $(149,682)$305,079 $452,946 $(145,496)$307,450