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Investment Securities - Schedule of Amortized Cost and Fair Value by Contractual Maturity of Available-For-Sale Securities (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | $ 273,126 | $ 307,843
Fair Value | 271,610 | 307,019
U.S. Treasury and government sponsored entities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Within 1 year, amortized cost | 68,285 |
1-5 years, amortized cost | 141,623 |
Amortized Cost | 209,908 | 250,794
Within 1 year, fair value | 67,798 |
1-5 years, fair value | 141,062 |
Fair Value | $ 208,860 | 249,461
Within one year, weighted average yield | 1.41% |
1-5 years, weighted average yield | 2.36% |
Weighted Average Yield | 2.05% |
Corporate bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
1-5 years, amortized cost | $ 30,130 |
5-10 years, amortized cost | 10,009 |
Amortized Cost | 40,139 | 36,654
1-5 years, fair value | 30,103 |
5-10 years, fair value | 9,677 |
Fair Value | $ 39,780 | 37,132
1-5 years, weighted average yield | 3.45% |
5-10 years, weighted average yield | 3.51% |
Weighted Average Yield | 3.46% |
Collateralized loan obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
5-10 years, amortized cost | $ 3,000 |
Over 10 years, amortized cost | 10,990 |
Amortized Cost | 13,990 | 6,000
5-10 years, fair value | 2,990 |
Over 10 years, fair value | 10,896 |
Fair Value | $ 13,886 | 6,005
5-10 years, weighted average yield | 3.86% |
Over 10 years, weighted average yield | 3.78% |
Weighted Average Yield | 3.80% |
Municipal securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Within 1 year, amortized cost | $ 1,867 |
1-5 years, amortized cost | 7,222 |
Amortized Cost | 9,089 | 14,395
Within 1 year, fair value | 1,861 |
1-5 years, fair value | 7,223 |
Fair Value | $ 9,084 | $ 14,421
Within one year, weighted average yield | 1.64% |
1-5 years, weighted average yield | 2.64% |
Weighted Average Yield | 2.43% |

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