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, 2020
Dec. 31, 2019
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]      
Goodwill, gross carrying amount $ 33,375 $ 15,072  
Intangible assets, gross carrying amount 24,745 9,050  
Goodwill and intangible assets, gross carrying amount, total 58,120 24,122  
Intangible assets, accumulated amortization (6,067) (1,810)  
Goodwill, net book value 33,375 15,072 $ 11,459
Intangible assets, net book value 18,678 7,240  
Goodwill and intangible assets, net book value $ 52,053 $ 22,312