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Goodwill and Other Intangibles - Summary of Other Intangible Assets and Accumulated Amortization Balances (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Intangible Assets [Line Items]
Gross Carrying Value	$ 138,895	$ 137,583
Accumulated Amortization	(89,112)	(81,198)
Net Carrying Value	49,783	56,385
Net Carrying Value	49,783	56,385
Customer Relationships
Intangible Assets [Line Items]
Gross Carrying Value	89,208	87,316
Accumulated Amortization	(50,687)	(44,269)
Net Carrying Value	38,521	43,047
Technology
Intangible Assets [Line Items]
Gross Carrying Value	25,106	25,110
Accumulated Amortization	(19,866)	(18,616)
Net Carrying Value	5,240	6,494
Product Development Costs
Intangible Assets [Line Items]
Gross Carrying Value	19,911	20,487
Accumulated Amortization	(18,559)	(18,313)
Net Carrying Value	1,352	2,174
Tradenames
Intangible Assets [Line Items]
Net Carrying Value	$ 4,670	$ 4,670

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
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