Annual report pursuant to Section 13 and 15(d)

Acquisitions, Goodwill and Other Intangible Assets - Summary of Goodwill and Intangible Assets (Detail)

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Acquisitions, Goodwill and Other Intangible Assets - Summary of Goodwill and Intangible Assets (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]      
Goodwill, gross carrying amount $ 15,072 $ 11,459  
Intangible assets, gross carrying amount 9,050 4,240  
Goodwill and intangible assets, gross carrying amount, total 24,122 15,699  
Intangible assets, accumulated amortization (1,810) (314)  
Goodwill, net book value 15,072 11,459 $ 0
Intangible assets, net book value 7,240 3,926  
Goodwill and intangible assets, net book value $ 22,312 $ 15,385