Summary of Significant Accounting Policies - Schedule of Gross Carrying Values, Accumulated Amortization and Net Carrying Amounts of Major Classes of Intangible Assets (Detail) - USD ($) $ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
---|---|---|
Finite Lived Intangible Assets [Line Items] | ||
Gross | $ 39,900 | $ 31,700 |
Accumulated amortization, intangible assets | 6,952 | 3,320 |
Net | 32,948 | 28,380 |
Customer Relationships [Member] | ||
Finite Lived Intangible Assets [Line Items] | ||
Gross | 39,500 | 31,000 |
Accumulated amortization, intangible assets | 6,729 | 2,850 |
Net | 32,771 | 28,150 |
Tradenames [Member] | ||
Finite Lived Intangible Assets [Line Items] | ||
Gross | 200 | 500 |
Accumulated amortization, intangible assets | 183 | 450 |
Net | 17 | 50 |
Leasehold Interests [Member] | ||
Finite Lived Intangible Assets [Line Items] | ||
Gross | 200 | 200 |
Accumulated amortization, intangible assets | 40 | 20 |
Net | $ 160 | $ 180 |