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Business Segment Information - Long-lived assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Segment Information [Line Items]
Long-lived assets	$ 494,003	$ 417,342	$ 343,083
United States [Member]
Business Segment Information [Line Items]
Long-lived assets	350,615	276,891	203,664
Americas Other [Member]
Business Segment Information [Line Items]
Long-lived assets	1,179	1,929	1,680
Total Americas [Member]
Business Segment Information [Line Items]
Long-lived assets	351,794	278,820	205,344
Europe [Member]
Business Segment Information [Line Items]
Long-lived assets	119,978	116,734	118,513
Asia [Member]
Business Segment Information [Line Items]
Long-lived assets	$ 22,231	$ 21,788	$ 19,226

X

- Definition

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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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.

+ References

No definition available.

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