Goodwill and Other Amortizing Intangible Assets - Summarized Other Intangible Assets (Detail) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
---|---|---|
Finite-Lived Intangible Assets [Line Items] | ||
Gross Intangible Assets | $ 31,455 | $ 20,126 |
Accumulated Amortization | (19,442) | (18,895) |
Net Intangible Assets | 12,013 | 1,231 |
Customer Deposit Intangibles [Member] | ||
Finite-Lived Intangible Assets [Line Items] | ||
Gross Intangible Assets | 30,471 | 19,142 |
Accumulated Amortization | (18,998) | (18,619) |
Net Intangible Assets | 11,473 | 523 |
Customer list intangible | ||
Finite-Lived Intangible Assets [Line Items] | ||
Gross Intangible Assets | 984 | 984 |
Accumulated Amortization | (444) | (276) |
Net Intangible Assets | $ 540 | $ 708 |