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Goodwill and Other Intangible Assets - Intangible Assets by Major Class (Detail) - USD ($) $ in Thousands | 12 Months Ended |
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Dec. 31, 2019 | Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items] |  |
Amortized intangible assets, Weighted Average Useful Life in Years | 13 years 4 months 24 days |
Amortized intangible assets, Gross Carrying Amount | $ 112,854 | $ 102,187
Amortized intangible assets, Accumulated Amortization | 79,522 | 72,654
Amortized intangible assets, Net Carrying Amount | 33,332 | 29,533
Unamortized intangible assets, Gross Carrying Amount | 117,954 | 107,287
Intangible assets, Net Carrying Amount | 38,432 | 34,633
Trademarks |  |
Finite-Lived Intangible Assets [Line Items] |  |
Unamortized intangible assets, Gross Carrying Amount | $ 5,100 | 5,100
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortized intangible assets, Weighted Average Useful Life in Years | 14 years 2 months 12 days |
Amortized intangible assets, Gross Carrying Amount | $ 99,613 | 99,080
Amortized intangible assets, Accumulated Amortization | 76,808 | 71,036
Amortized intangible assets, Net Carrying Amount | $ 22,805 | 28,044
Trademarks |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortized intangible assets, Weighted Average Useful Life in Years | 6 years |
Amortized intangible assets, Gross Carrying Amount | $ 9,855 | 0
Amortized intangible assets, Accumulated Amortization | 653 | 0
Amortized intangible assets, Net Carrying Amount | $ 9,202 | 0
Acquired software and other |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortized intangible assets, Weighted Average Useful Life in Years | 9 years 1 month 6 days |
Amortized intangible assets, Gross Carrying Amount | $ 3,386 | 3,107
Amortized intangible assets, Accumulated Amortization | 2,061 | 1,618
Amortized intangible assets, Net Carrying Amount | $ 1,325 | $ 1,489

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 + Details
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