Details of Certain Consolidated Balance Sheet Captions (Accrued Liabilities) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Details of Certain Consolidated Balance Sheet Captions [Abstract]
Wages, compensation and other benefits	$ 192,354	$ 198,311
Commissions and royalties	23,027	19,673
Warranty costs and late delivery penalties	30,625	31,683
Sales and use tax	18,146	14,486
Income tax	20,018	9,865
Other	117,215	117,388
Accrued liabilities	$ 401,385	$ 391,406
Other accrued liabilities maximum percentage of current liabilities	5.00%

Concentration risk, accrued liabilities, maximum

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Details of Certain Consolidated Balance Sheet Captions [Abstract]

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Warranty costs and late delivery penalties, current

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Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(15)(b)(1))
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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Carrying value as of the balance sheet date of obligations incurred through that date and payable for royalties.

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Carrying value as of the balance sheet date of liabilities incurred through that date and payable for statutory sales and use taxes, including value added tax. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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