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Securities - Contractural Maturities (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2017 | Dec. 31, 2016
Securities Available-for-Sale, Amortized Cost |  |
Due in one year or less | $ 3,400 |
Due after one year through five years | 5,846 |
Due after five years through ten years | 16,105 |
Due after ten years | 227,596 |
Debt securities excluding securities not due at a single maturity date | 252,947 |
Total | $ 533,116 | $ 545,433
Securities Available-for-Sale, Weighted Average Yield |  |
Due in one year or less (as a percent) | 2.60% |
Due after one year through five years (as a percent) | 2.74% |
Due after five years through ten years (as a percent) | 2.52% |
Due after ten years (as a percent) | 2.98% |
Debt securities (as a percent) | 2.94% |
Total (as a percent) | 2.91% |
Securities Available-for-Sale, Fair Value |  |
Due in one year or less | $ 3,405 |
Due after one year through five years | 5,831 |
Due after five years through ten years | 16,057 |
Due after ten years | 231,757 |
Debt securities | 257,050 |
Fair Value | 533,484 | 531,838
Collateralized mortgage obligations |  |
Securities Available-for-Sale, Amortized Cost |  |
Total | 81,693 | 174,352
Securities Available-for-Sale, Fair Value |  |
Fair Value | 80,386 | 170,927
Asset-backed securities |  |
Securities Available-for-Sale, Amortized Cost |  |
Securities not due at a single maturity date | 134,542 |
Total | $ 134,542 | 146,391
Securities Available-for-Sale, Weighted Average Yield |  |
Securities not due at a single maturity date, Weighted Average Yield (as a percent) | 2.41% |
Securities Available-for-Sale, Fair Value |  |
Securities not due at a single maturity date | $ 131,759 |
Fair Value | 131,759 | 138,407
Collateralized loan obligations |  |
Securities Available-for-Sale, Amortized Cost |  |
Securities not due at a single maturity date | 52,803 |
Total | $ 52,803 | 102,504
Securities Available-for-Sale, Weighted Average Yield |  |
Securities not due at a single maturity date, Weighted Average Yield (as a percent) | 4.38% |
Securities Available-for-Sale, Fair Value |  |
Securities not due at a single maturity date | $ 53,259 |
Fair Value | 53,259 | $ 101,637
Mortgage-backed and collateralized mortgage obligations |  |
Securities Available-for-Sale, Amortized Cost |  |
Securities not due at a single maturity date | $ 92,824 |
Securities Available-for-Sale, Weighted Average Yield |  |
Securities not due at a single maturity date, Weighted Average Yield (as a percent) | 2.72% |
Securities Available-for-Sale, Fair Value |  |
Securities not due at a single maturity date | $ 91,416 |

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- Definition Amortized cost of debt securities categorized neither as held-to-maturity nor trading. This item represents the total amortized cost of all debt securities grouped by maturity dates, excluding the securities with no single maturity date. + References No definition available. + Details
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- Definition Represents the weighted average yield of available-for-sale debt securities maturing after the tenth rolling twelve months following the latest balance sheet presented. This item represents the weighted average yield of all debt securities grouped by maturity dates, excluding the securities with no single maturity date. + References No definition available. + Details
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- Definition Represents the weighted average yield of available-for-sale debt securities maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. + References No definition available. + Details
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- Definition Represents the weighted average yield of available-for-sale debt securities maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. + References No definition available. + Details
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