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Deposits (Details) - USD ($) $ in Millions | Mar. 31, 2017 | Dec. 31, 2016
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Deposits Disclosure [Line Items] |  |
Time Deposits, $250,000 or More | $ 1,560.0 | $ 1,550.0
California State Treasurer |  |
Deposits Disclosure [Line Items] |  |
Time Deposits, $250,000 or More | 300.0 |
Available-for-sale Securities Pledged as Collateral | 355.7 | 371.6
Interest-bearing Domestic Deposit, Brokered | $ 714.4 | $ 724.7

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- Definition The fair value of available-for-sale securities that serve as collateral for borrowings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5086-111524 + Details
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- Definition Amount of interest-bearing domestic third-party deposits placed by or through the assistance of a deposit broker, also known as brokered deposit liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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