Loans Receivable and Allowance for Loan Losses - Additional Information (Details) (USD $)
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3 Months Ended | 9 Months Ended | |||
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Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2013
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Sep. 30, 2012
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Dec. 31, 2012
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Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
Loans receivable, net | $ 4,833,224,000 | $ 4,833,224,000 | $ 4,229,311,000 | ||
Loans and Leases Receivable, Commitments, Provision for Loan Losses | 0 | 0 | 0 | 116,000 | |
Positive or Negative Qualitative Adjustment of the Loss Migration Ratio or Individual Specific Reserve Allocations, In Basis Points | 0.50% | 0.50% | |||
Due from Related Parties | 7,700,000 | 7,700,000 | 11,100,000 | ||
Commitment to lend | 802,000 | 802,000 | |||
Pacific International Bancorp
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Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
Loans receivable, net | $ 117,800,000 | $ 117,800,000 | $ 112,600,000 |