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Shareholders' Equity - Dividends and Share Repurchases (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Dividends |  |  |
Dividends declared and paid by subsidiary | $ 2,850 | $ 3,133 | $ 13,010
Dividends declared and paid during the period | $ 4,270 | $ 3,010 | $ 2,715
Dividends declared, per share | $ 0.31 | $ 0.24 | $ 0.24
California |  |  |
Class of Stock [Line Items] |  |  |
Dividends available for distribution free of restrictions | $ 33,036 |  |

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- Definition The amount of dividends that can be declared or paid without affecting the banking or savings institution's regulatory capital position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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