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Business Combination - Schedule of Supplemental Pro Forma Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 8 Months Ended | 11 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Sun Bancorp, Inc. |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Net interest income, Actual |  |  | $ 63,889 |  |  |
Provision for loan losses, Actual |  |  | 1,215 |  |  |
Non-interest income, Actual |  |  | 7,961 |  |  |
Non-interest expense, Actual |  |  | 35,184 |  |  |
Provision (benefit) for income taxes, Actual |  |  | 7,090 |  |  |
Net income, Actual |  |  | $ 28,361 |  |  |
Cape Bancorp, Inc. |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Net interest income, Actual |  | $ 34,565 |  |  |  |
Provision for loan losses, Actual |  | 498 |  |  |  |
Non-interest income, Actual |  | 3,503 |  |  |  |
Non-interest expense, Actual |  | 19,258 |  |  |  |
Provision (benefit) for income taxes, Actual |  | 6,947 |  |  |  |
Net income, Actual |  | $ 12,311 |  |  |  |
Ocean Shore Holdings Co. |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Net interest income, Actual | $ 3,109 |  |  |  |  |
Provision for loan losses, Actual | 0 |  |  |  |  |
Non-interest income, Actual | 349 |  |  |  |  |
Non-interest expense, Actual | 1,337 |  |  |  |  |
Provision (benefit) for income taxes, Actual | (60) |  |  |  |  |
Net income, Actual | $ 1,397 |  |  |  |  |
Net interest income, Pro forma |  |  |  | $ 246,642 | $ 242,508 | $ 236,852
Provision for loan losses, Pro forma |  |  |  | 3,490 | 2,914 | 2,718
Non-interest income, Pro forma |  |  |  | 35,642 | 38,960 | 39,150
Non-interest expense, Pro forma |  |  |  | 203,733 | 191,342 | 226,782
Provision (benefit) for income taxes, Pro forma |  |  |  | 12,911 | 23,675 | (40,177)
Net income, Pro forma |  |  |  | $ 62,150 | $ 63,537 | $ 86,679
Fully diluted, Pro forma |  |  |  | $ 1.27 | $ 1.32 | $ 1.84

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