Acquisitions (Details) - USD ($)	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	$ 88,457,000	$ 238,839
Current Assets	5,128,000
Property, Plant, and Equipment	1,854,000
Goodwill - tax deductible		33,159,000
Goodwill Acquired	62,487,000
Intangibles	38,914,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets	415,000
Current Liabilities	11,604,000
Goodwill and intangible assets	101,401,000
Other assets and deferred charges	8,737,000
Goodwill Acquired During Period, Non-deductible for Income Tax	62,487,000	112,178,000
Patents [Member]
Business Acquisition [Line Items]
Intangibles	$ 6,006,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	9 years
Trademarks [Member]
Business Acquisition [Line Items]
Intangibles	$ 4,306,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Customer-Related Intangible Assets
Business Acquisition [Line Items]
Intangibles	$ 18,892,000
Unpatented Technologies [Member]
Business Acquisition [Line Items]
Intangibles	9,710,000
Systech [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired		162,943,000
Goodwill Acquired		92,606,000
Intangibles		76,100,000
Soft-Pak [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired		45,500,000
Goodwill - tax deductible		33,159,000
Intangibles		12,800,000
Em-tec [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired		30,396,000
Goodwill - tax deductible		19,572,000
Intangibles		$ 8,344,000
Blue Bite
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	29,035,000
Goodwill Acquired	19,705,000
Intangibles	13,250,000
Quantex
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	23,896,000
Goodwill Acquired	15,596,000
Intangibles	11,034,000
AvaLAN
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	34,003,000
Goodwill Acquired	26,495,000
Intangibles	$ 14,630,000
Minimum [Member] \| Customer-Related Intangible Assets
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	12 years
Minimum [Member] \| Unpatented Technologies [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years
Maximum [Member] \| Customer-Related Intangible Assets
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Maximum [Member] \| Unpatented Technologies [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	8 years

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Goodwill Acquired During Period, Non-deductible for Income Tax

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount of assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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