Investment Securities - Schedule of Amortized Cost and Fair Value by Contractual Maturity of Available-For-Sale Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 297,141	$ 331,812
U.S. Treasury and government sponsored entities
Schedule of Available-for-sale Securities [Line Items]
Within 1 year, amortized cost	32,000
1-5 years, amortized cost	202,733
5-10 years, amortized cost	2,000
Amortized Cost	236,733	264,267
Within 1 year, fair value	31,987
1-5 years, fair value	202,094
5-10 years, fair value	2,000
Fair Value	$ 236,081
Within 1 year, weighted average yield	0.96%
1-5 years, weighted average yield	1.20%
5-10 years, weighted average yield	2.00%
Weighted Average Yield	1.17%
U.S. Agency mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
1-5 years, amortized cost	$ 1
Amortized Cost	1	2
1-5 years, fair value	1
Fair Value	$ 1
1-5 years, weighted average yield	5.06%
Weighted Average Yield	5.06%
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
1-5 years, amortized cost	$ 26,206
5-10 years, amortized cost	8,434
Amortized Cost	34,640	44,437
1-5 years, fair value	26,494
5-10 years, fair value	8,561
Fair Value	$ 35,055
1-5 years, weighted average yield	1.88%
5-10 years, weighted average yield	2.32%
Weighted Average Yield	1.99%
Collateralized loan obligations
Schedule of Available-for-sale Securities [Line Items]
Over 10 years, amortized cost	$ 3,000
Amortized Cost	3,000
Over 10 years, fair value	3,000
Fair Value	$ 3,000
Over 10 years, weighted average yield	3.04%
Weighted Average Yield	3.04%
Preferred stock
Schedule of Available-for-sale Securities [Line Items]
Over 10 years, amortized cost	$ 5,421
Amortized Cost	5,421	$ 4,922
Over 10 years, fair value	5,643
Fair Value	$ 5,643
Over 10 years, weighted average yield	6.37%
Weighted Average Yield	6.37%

Available For Sale Securities After Five Through Ten Years Weighted Average Yield

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Available-for-Sale Securities, Weighted Average Yield

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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Amount after adjustments of available-for-sale debt securities at cost, maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after adjustments of available-for-sale debt securities at cost, maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after adjustments of available-for-sale debt securities at cost, maturing after the tenth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after adjustments of available-for-sale debt securities at cost, maturing in the next fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of debt securities categorized neither as held-to-maturity nor trading.

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