Goodwill and Other Intangible Assets - Intangible Assets and Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 2,139,910		$ 2,075,215
Accumulated amortization	1,140,331		1,116,854
Finite-Lived Intangible Assets, Net	999,579		958,361
Intangible Assets, Gross (Excluding Goodwill)	2,236,471		2,171,868
Intangible assets, net	1,096,140		1,055,014
Amortization expense	34,197	$ 35,550
Acquisition-related amortization expense	33,817	$ 35,155
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	0		0
Customer Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,467,966		1,410,636
Accumulated amortization	731,391		714,566
Finite-Lived Intangible Assets, Net	736,575		696,070
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	220,805		218,064
Accumulated amortization	89,123		85,791
Finite-Lived Intangible Assets, Net	131,682		132,273
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	158,612		159,376
Accumulated amortization	134,360		133,677
Finite-Lived Intangible Assets, Net	24,252		25,699
Unpatented Technologies [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	162,763		154,505
Accumulated amortization	100,858		99,276
Finite-Lived Intangible Assets, Net	61,905		55,229
Distributor Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	80,237		82,779
Accumulated amortization	44,889		44,202
Finite-Lived Intangible Assets, Net	35,348		38,577
Drawings and Manuals [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	26,619		27,500
Accumulated amortization	22,228		22,403
Finite-Lived Intangible Assets, Net	4,391		5,097
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	22,908		22,355
Accumulated amortization	17,482		16,939
Finite-Lived Intangible Assets, Net	$ 5,426		$ 5,416

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before accumulated amortization of intangible assets, excluding goodwill.

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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