Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Intangible Assets - Additional Information (Detail)

v3.19.3.a.u2
Goodwill and Other Intangible Assets - Additional Information (Detail) - Customer Related Intangible Assets [Member]
12 Months Ended
Dec. 31, 2019
USD ($)
Intangible Assets Other Than Goodwill [Line Item]  
Intangible assets, useful life 12 months
Intangible assets, amortization method Straight-line basis
Intangible assets, amortization expense $ 321,000
Intangible assets, remaining amortization expense amortized in 2020 $ 229,000