Deposits (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Banking and Thrift [Abstract]
Noninterest demand deposits, Amount	$ 709,673	$ 349,902
NOW accounts, Amount	793,362	352,051
Money market accounts, Amount	520,065	232,016
Savings accounts, Amount	357,834	155,790
Total non-maturity deposits, Amount	2,380,934	1,089,759
Certificate of deposit accounts, Amount	525,397	309,430
Total deposits, Amount	$ 2,906,331us-gaap_Deposits	$ 1,399,189us-gaap_Deposits
Noninterest demand deposits, Percent	24.40%	25.00%
NOW accounts, Percent	27.30%	25.20%
Money market accounts, Percent	17.90%	16.60%
Savings accounts, Percent	12.30%	11.10%
Total non-maturity deposits, Percent	81.90%	77.90%
Certificate of deposit accounts, Percent	18.10%	22.10%
Total deposits, Percent	100.00%	100.00%

Percentage of domestic deposits to deposits liabilities of deposit.

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- Definition

Percentage of Noninterest Bearing Domestic Deposits to Deposits liabilities of Deposit

+ References

No definition available.

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- Definition

Percentage of Non-maturity deposits to total deposits

+ References

No definition available.

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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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 12

-Article 9

+ Details

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- Definition

Amount of interest-bearing domestic certificate of deposit liabilities.

+ References

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- Definition

Amount of interest-bearing domestic money market demand account deposit liabilities.

+ References

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- Definition

Amount of interest-bearing domestic negotiable order of withdrawal (NOW) demand deposit liabilities.

+ References

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- Definition

Amount of interest-bearing domestic savings deposit liabilities. Saving deposits bear interest and have no stated maturity.

+ References

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- Definition

Amount of interest-bearing domestic time deposits. Time deposits bear interest for a fixed, stated period of time and include certificate of deposits and individual retirement accounts.

+ References

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- Definition

Amount of money in noninterest-bearing domestic accounts that entitle the depositor to withdraw funds at any time without prior notice, also known as demand deposits.

+ References

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- Definition

Percentage of interest-bearing domestic certificates of deposit liabilities to total deposit liabilities.

+ References

No definition available.

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- Definition

Percentage of interest-bearing domestic money market demand account deposit liabilities to total deposit liabilities.

+ References

No definition available.

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- Definition

Percentage of interest-bearing domestic notice of withdrawal demand deposit liabilities to total deposit liabilities.

+ References

No definition available.

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- Definition

Percentage of interest-bearing domestic savings deposit liabilities to total deposit liabilities.

+ References

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