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Goodwill and Other Intangibles - Summary of Other Intangible Assets and Accumulated Amortization Balances (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Intangible Assets [Line Items]
Gross Carrying Value	$ 139,426		$ 138,895
Accumulated Amortization	(89,364)		(89,112)
Net Carrying Value	50,062	$ 49,783
Net Carrying Value	50,062		49,783
Customer Relationships
Intangible Assets [Line Items]
Gross Carrying Value	87,519		89,208
Accumulated Amortization	(51,181)		(50,687)
Net Carrying Value	36,338		38,521
Technology
Intangible Assets [Line Items]
Gross Carrying Value	27,782		25,106
Accumulated Amortization	(19,943)		(19,866)
Net Carrying Value	7,839		5,240
Product Development Costs
Intangible Assets [Line Items]
Gross Carrying Value	19,455		19,911
Accumulated Amortization	(18,240)		(18,559)
Net Carrying Value	1,215		1,352
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
-Section 50
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-Publisher FASB
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