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Deposits - Composition of Deposits (Detail) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
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Noninterest-bearing Deposit Liabilities [Abstract] |  |
Noninterest-bearing deposits | $ 3,846,436 | $ 3,673,541
Interest-bearing deposits: |  |
Investment checking | 433,971 | 407,058
Money market | 1,517,050 | 1,504,021
Savings | 364,049 | 342,236
Time deposits | 385,347 | 382,824
Total deposits | $ 6,546,853 | $ 6,309,680
Noninterest-bearing deposits, percentage of total deposits | 58.75% | 58.22%
Investment checking, percentage of total deposits | 6.63% | 6.45%
Money market, percentage of total deposits | 23.17% | 23.84%
Savings, percentage of total deposits | 5.56% | 5.42%
Time deposits, percentage of total deposits | 5.89% | 6.07%
Percentage of deposit, total | 100.00% | 100.00%

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- Definition Investment checking deposits. + References No definition available. + Details
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- Definition Percentage of interest and non-interest bearing domestic deposits. + References No definition available. + Details
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- Definition Percentage of non-interest-bearing domestic deposits to deposits demand. + References No definition available. + Details
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- Definition The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others. + 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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- Definition Amount of deposits in accounts that offer many of the same services as checking accounts although transactions may be somewhat more limited, share some of the characteristics of a money market fund and are insured by the Federal government, also known as money market accounts. + 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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- Definition Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs). + 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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- Definition The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity. + 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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- Definition Percentage of interest-bearing domestic checking demand deposit liabilities to total deposit liabilities. + References No definition available. + Details
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