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Details of Selected Balance Sheet Accounts - Other Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 300,526	$ 313,960
Accumulated Amortization	104,914	108,211
Net Carrying Amount	195,612	205,749
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	168,290	168,288
Accumulated Amortization	60,937	55,380
Net Carrying Amount	107,353	112,908
Patents/Technology/Know-how
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	78,528	75,920
Accumulated Amortization	30,425	26,124
Net Carrying Amount	48,103	49,796
Noncompete agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	0	16,044
Accumulated Amortization	0	14,742
Net Carrying Amount	0	1,302
Tradenames and other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	53,708	53,708
Accumulated Amortization	13,552	11,965
Net Carrying Amount	$ 40,156	$ 41,743

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