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v3.19.1

Fair value measurements - Assets and liabilities measured on a recurring basis (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Derivative assets |  |
Available-for-sale investment securities | $ 1,348,263 | $ 1,388,533
Corporate bonds |  |
Derivative assets |  |
Available-for-sale investment securities | 50,462 | 49,132
Mortgage revenue bonds |  |
Derivative assets |  |
Available-for-sale investment securities | 27,970 | 23,636
Fair value measurements on a recurring basis | Level 1 |  |
Derivative liabilities |  |
Derivative liabilities | 141 | 34
Fair value measurements on a recurring basis | Level 1 | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 0 | 0
Derivative assets | 0 | 0
Fair value measurements on a recurring basis | Level 1 | Bank | Interest rate lock commitments |  |
Derivative assets |  |
Derivative assets | 0 | 0
Derivative liabilities |  |
Derivative liabilities | 0 | 0
Fair value measurements on a recurring basis | Level 1 | Bank | Forward commitments |  |
Derivative assets |  |
Derivative assets | 0 | 0
Derivative liabilities |  |
Derivative liabilities | 141 | 34
Fair value measurements on a recurring basis | Level 1 | Other | Interest rate swap |  |
Derivative liabilities |  |
Derivative liabilities | 0 | 0
Fair value measurements on a recurring basis | Level 1 | Mortgage-related securities - FNMA, FHLMC and GNMA | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 0 | 0
Fair value measurements on a recurring basis | Level 1 | U.S. Treasury federal agency obligations | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 0 | 0
Fair value measurements on a recurring basis | Level 1 | Corporate bonds | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 0 | 0
Fair value measurements on a recurring basis | Level 1 | Mortgage revenue bonds | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 0 | 0
Fair value measurements on a recurring basis | Level 2 |  |
Derivative liabilities |  |
Derivative liabilities | 1,160 | 596
Fair value measurements on a recurring basis | Level 2 | Interest rate swap |  |
Derivative liabilities |  |
Derivative liabilities | 1,130 |
Fair value measurements on a recurring basis | Level 2 | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 1,320,293 | 1,364,897
Derivative assets | 472 | 91
Fair value measurements on a recurring basis | Level 2 | Bank | Interest rate lock commitments |  |
Derivative assets |  |
Derivative assets | 463 | 91
Derivative liabilities |  |
Derivative liabilities | 1 | 0
Fair value measurements on a recurring basis | Level 2 | Bank | Forward commitments |  |
Derivative assets |  |
Derivative assets | 9 | 0
Derivative liabilities |  |
Derivative liabilities | 29 | 9
Fair value measurements on a recurring basis | Level 2 | Other | Interest rate swap |  |
Derivative liabilities |  |
Derivative liabilities |  | 587
Fair value measurements on a recurring basis | Level 2 | Mortgage-related securities - FNMA, FHLMC and GNMA | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 1,128,987 | 1,161,416
Fair value measurements on a recurring basis | Level 2 | U.S. Treasury federal agency obligations | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 140,844 | 154,349
Fair value measurements on a recurring basis | Level 2 | Corporate bonds | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 50,462 | 49,132
Fair value measurements on a recurring basis | Level 2 | Mortgage revenue bonds | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 0 | 0
Fair value measurements on a recurring basis | Level 3 |  |
Derivative liabilities |  |
Derivative liabilities | 0 | 0
Fair value measurements on a recurring basis | Level 3 | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 27,970 | 23,636
Derivative assets | 0 | 0
Fair value measurements on a recurring basis | Level 3 | Bank | Interest rate lock commitments |  |
Derivative assets |  |
Derivative assets | 0 | 0
Derivative liabilities |  |
Derivative liabilities | 0 | 0
Fair value measurements on a recurring basis | Level 3 | Bank | Forward commitments |  |
Derivative assets |  |
Derivative assets | 0 | 0
Derivative liabilities |  |
Derivative liabilities | 0 | 0
Fair value measurements on a recurring basis | Level 3 | Other | Interest rate swap |  |
Derivative liabilities |  |
Derivative liabilities | 0 | 0
Fair value measurements on a recurring basis | Level 3 | Mortgage-related securities - FNMA, FHLMC and GNMA | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 0 | 0
Fair value measurements on a recurring basis | Level 3 | U.S. Treasury federal agency obligations | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 0 | 0
Fair value measurements on a recurring basis | Level 3 | Corporate bonds | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | 0 | 0
Fair value measurements on a recurring basis | Level 3 | Mortgage revenue bonds | Bank |  |
Derivative assets |  |
Available-for-sale investment securities | $ 27,970 | $ 23,636

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