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Loans - Loans Receivable (Detail) (USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2014
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Mar. 31, 2014
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Dec. 31, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2012
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|---|---|---|---|---|---|---|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Total gross loans | $ 2,349,235 | $ 2,234,089 | $ 2,187,389 | |||
| Allowance for loans losses | (51,886) | (56,593) | (57,555) | (59,876) | (61,191) | (63,305) |
| Deferred loan costs | 3,461 | 964 | ||||
| Loans receivable, net | 2,300,810 | 2,177,498 | ||||
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Real estate loans [Member]
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Total gross loans | 2,090,083 | 1,969,798 | 1,964,853 | |||
| Allowance for loans losses | (40,303) | (44,230) | (43,550) | (46,396) | (46,328) | (49,472) |
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Commercial and industrial loans [Member]
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Total gross loans | 230,309 | 231,786 | 187,156 | |||
| Allowance for loans losses | (9,738) | (10,425) | (11,287) | (11,118) | (11,064) | (10,636) |
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Consumer loans [Member]
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Total gross loans | 28,843 | 32,505 | 35,380 | |||
| Allowance for loans losses | (540) | (633) | (1,427) | (1,884) | (1,795) | (2,280) |
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Retail [Member] | Real estate loans [Member]
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Total gross loans | 561,654 | 543,619 | ||||
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Hotel/Motel [Member] | Real estate loans [Member]
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Total gross loans | 338,128 | 322,927 | ||||
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Gas station [Member] | Real estate loans [Member]
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Total gross loans | 283,097 | 292,557 | ||||
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Other [Member] | Real estate loans [Member]
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Total gross loans | 797,176 | 731,617 | ||||
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Construction [Member] | Real estate loans [Member]
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Total gross loans | 1,467 | |||||
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Residential property [Member] | Real estate loans [Member]
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Total gross loans | 108,561 | 79,078 | ||||
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Commercial term [Member] | Commercial and industrial loans [Member]
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Total gross loans | 115,493 | 124,391 | ||||
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Commercial lines of credit [Member] | Commercial and industrial loans [Member]
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Total gross loans | 70,801 | 71,042 | ||||
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International loans [Member] | Commercial and industrial loans [Member]
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Total gross loans | $ 44,015 | $ 36,353 |