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Loans Receivable and Allowance for Loan Losses (Composition of Loans Receivable) (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Loans receivable and allowance for loan losses disclosures            
Total Past Due $ 197,741   $ 199,875      
Current 10,603,177   10,911,852      
Total 10,800,918   11,111,727      
Net unamortized premiums and deferred loan origination costs 38,411   41,354      
Loans receivable 10,839,329   11,153,081      
Allowance for loan losses (90,000) $ (94,200) (98,000) $ (107,500) $ (110,500) $ (111,600)
Loans receivable, net 10,749,329   11,055,081      
Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 85,807   105,861      
Current 10,562,338   10,867,982      
Total 10,648,145   10,973,843      
Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 111,934   94,014      
Current 40,839   43,870      
Total 152,773   137,884      
Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 188,757   189,907      
Current 10,354,732   10,669,127      
Total 10,543,489   10,859,034      
Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 82,598   103,001      
Current 10,314,164   10,625,257      
Total 10,396,762   10,728,258      
Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 106,159   86,906      
Current 40,568   43,870      
Total 146,727   130,776      
30-59 Days            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 69,672   90,073      
30-59 Days | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 66,364   81,851      
30-59 Days | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 3,308   8,222      
30-59 Days | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 67,004   87,715      
30-59 Days | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 63,696   79,493      
30-59 Days | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 3,308   8,222      
60-89 Days            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 21,340   25,848      
60-89 Days | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 17,025   23,678      
60-89 Days | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 4,315   2,170      
60-89 Days | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 20,799   25,346      
60-89 Days | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 16,484   23,176      
60-89 Days | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 4,315   2,170      
90 Days or More            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 106,729   83,954      
90 Days or More | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 2,418   332      
90 Days or More | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 104,311   83,622      
90 Days or More | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 100,954   76,846      
90 Days or More | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 2,418   332      
90 Days or More | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 98,536   76,514      
Residential | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 175,087   179,639      
Current 5,458,334   5,835,776      
Total 5,633,421   6,015,415      
Allowance for loan losses (41,220) (44,378) (44,951) (44,546) (43,481) (46,283)
Residential | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 73,705   97,335      
Current 5,422,209   5,798,076      
Total 5,495,914   5,895,411      
Residential | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 101,382   82,304      
Current 36,125   37,700      
Total 137,507   120,004      
Residential | Mortgage loans (gross) | Full documentation interest-only            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 18,405   24,968      
Current 318,765   407,320      
Total 337,170   432,288      
Residential | Mortgage loans (gross) | Full documentation interest-only | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 5,453   12,427      
Current 313,953   401,486      
Total 319,406   413,913      
Residential | Mortgage loans (gross) | Full documentation interest-only | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 12,952   12,541      
Current 4,812   5,834      
Total 17,764   18,375      
Residential | Mortgage loans (gross) | Full documentation amortizing            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 84,811   87,546      
Current 4,403,562   4,610,420      
Total 4,488,373   4,697,966      
Residential | Mortgage loans (gross) | Full documentation amortizing | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 41,396   50,829      
Current 4,392,925   4,602,940      
Total 4,434,321   4,653,769      
Residential | Mortgage loans (gross) | Full documentation amortizing | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 43,415   36,717      
Current 10,637   7,480      
Total 54,052   44,197      
Residential | Mortgage loans (gross) | Reduced documentation interest-only            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 20,078   25,696      
Current 162,186   277,535      
Total 182,264   303,231      
Residential | Mortgage loans (gross) | Reduced documentation interest-only | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 6,154   9,575      
Current 156,689   266,084      
Total 162,843   275,659      
Residential | Mortgage loans (gross) | Reduced documentation interest-only | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 13,924   16,121      
Current 5,497   11,451      
Total 19,421   27,572      
Residential | Mortgage loans (gross) | Reduced documentation amortizing            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 51,793   41,429      
Current 573,821   540,501      
Total 625,614   581,930      
Residential | Mortgage loans (gross) | Reduced documentation amortizing | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 20,702   24,504      
Current 558,642   527,566      
Total 579,344   552,070      
Residential | Mortgage loans (gross) | Reduced documentation amortizing | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 31,091   16,925      
Current 15,179   12,935      
Total 46,270   29,860      
Residential | 30-59 Days | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 61,596   84,841      
Residential | 30-59 Days | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 59,011   77,585      
Residential | 30-59 Days | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 2,585   7,256      
Residential | 30-59 Days | Mortgage loans (gross) | Full documentation interest-only            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 4,510   11,227      
Residential | 30-59 Days | Mortgage loans (gross) | Full documentation interest-only | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 4,510   10,045      
Residential | 30-59 Days | Mortgage loans (gross) | Full documentation interest-only | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   1,182      
Residential | 30-59 Days | Mortgage loans (gross) | Full documentation amortizing            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 35,578   43,730      
Residential | 30-59 Days | Mortgage loans (gross) | Full documentation amortizing | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 34,084   40,151      
Residential | 30-59 Days | Mortgage loans (gross) | Full documentation amortizing | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 1,494   3,579      
Residential | 30-59 Days | Mortgage loans (gross) | Reduced documentation interest-only            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 5,729   7,511      
Residential | 30-59 Days | Mortgage loans (gross) | Reduced documentation interest-only | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 5,150   7,254      
Residential | 30-59 Days | Mortgage loans (gross) | Reduced documentation interest-only | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 579   257      
Residential | 30-59 Days | Mortgage loans (gross) | Reduced documentation amortizing            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 15,779   22,373      
Residential | 30-59 Days | Mortgage loans (gross) | Reduced documentation amortizing | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 15,267   20,135      
Residential | 30-59 Days | Mortgage loans (gross) | Reduced documentation amortizing | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 512   2,238      
Residential | 60-89 Days | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 17,392   20,965      
Residential | 60-89 Days | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 14,694   19,418      
Residential | 60-89 Days | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 2,698   1,547      
Residential | 60-89 Days | Mortgage loans (gross) | Full documentation interest-only            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 943   2,382      
Residential | 60-89 Days | Mortgage loans (gross) | Full documentation interest-only | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 943   2,382      
Residential | 60-89 Days | Mortgage loans (gross) | Full documentation interest-only | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Residential | 60-89 Days | Mortgage loans (gross) | Full documentation amortizing            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 8,198   10,949      
Residential | 60-89 Days | Mortgage loans (gross) | Full documentation amortizing | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 7,312   10,346      
Residential | 60-89 Days | Mortgage loans (gross) | Full documentation amortizing | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 886   603      
Residential | 60-89 Days | Mortgage loans (gross) | Reduced documentation interest-only            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 1,369   2,900      
Residential | 60-89 Days | Mortgage loans (gross) | Reduced documentation interest-only | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 1,004   2,321      
Residential | 60-89 Days | Mortgage loans (gross) | Reduced documentation interest-only | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 365   579      
Residential | 60-89 Days | Mortgage loans (gross) | Reduced documentation amortizing            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 6,882   4,734      
Residential | 60-89 Days | Mortgage loans (gross) | Reduced documentation amortizing | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 5,435   4,369      
Residential | 60-89 Days | Mortgage loans (gross) | Reduced documentation amortizing | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 1,447   365      
Residential | 90 Days or More | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 96,099   73,833      
Residential | 90 Days or More | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   332      
Residential | 90 Days or More | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 96,099   73,501      
Residential | 90 Days or More | Mortgage loans (gross) | Full documentation interest-only            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 12,952   11,359      
Residential | 90 Days or More | Mortgage loans (gross) | Full documentation interest-only | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Residential | 90 Days or More | Mortgage loans (gross) | Full documentation interest-only | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 12,952   11,359      
Residential | 90 Days or More | Mortgage loans (gross) | Full documentation amortizing            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 41,035   32,867      
Residential | 90 Days or More | Mortgage loans (gross) | Full documentation amortizing | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   332      
Residential | 90 Days or More | Mortgage loans (gross) | Full documentation amortizing | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 41,035   32,535      
Residential | 90 Days or More | Mortgage loans (gross) | Reduced documentation interest-only            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 12,980   15,285      
Residential | 90 Days or More | Mortgage loans (gross) | Reduced documentation interest-only | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Residential | 90 Days or More | Mortgage loans (gross) | Reduced documentation interest-only | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 12,980   15,285      
Residential | 90 Days or More | Mortgage loans (gross) | Reduced documentation amortizing            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 29,132   14,322      
Residential | 90 Days or More | Mortgage loans (gross) | Reduced documentation amortizing | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Residential | 90 Days or More | Mortgage loans (gross) | Reduced documentation amortizing | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 29,132   14,322      
Multi-Family | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 9,737   7,520      
Current 4,110,307   4,016,585      
Total 4,120,044   4,024,105      
Allowance for loan losses (32,131) (33,020) (35,544) (38,794) (40,082) (39,250)
Multi-Family | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 5,356   3,731      
Current 4,107,115   4,013,541      
Total 4,112,471   4,017,272      
Multi-Family | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 4,381   3,789      
Current 3,192   3,044      
Total 7,573   6,833      
Multi-Family | 30-59 Days | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 4,997   2,387      
Multi-Family | 30-59 Days | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 4,504   1,662      
Multi-Family | 30-59 Days | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 493   725      
Multi-Family | 60-89 Days | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 1,587   2,692      
Multi-Family | 60-89 Days | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 136   2,069      
Multi-Family | 60-89 Days | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 1,451   623      
Multi-Family | 90 Days or More | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 3,153   2,441      
Multi-Family | 90 Days or More | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 716   0      
Multi-Family | 90 Days or More | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 2,437   2,441      
Commercial Real Estate | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 3,933   2,748      
Current 786,091   816,766      
Total 790,024   819,514      
Allowance for loan losses (9,709) (10,368) (11,217) (15,390) (17,118) (17,242)
Commercial Real Estate | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 3,537   1,935      
Current 784,840   813,640      
Total 788,377   815,575      
Commercial Real Estate | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 396   813      
Current 1,251   3,126      
Total 1,647   3,939      
Commercial Real Estate | 30-59 Days | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 411   487      
Commercial Real Estate | 30-59 Days | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 181   246      
Commercial Real Estate | 30-59 Days | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 230   241      
Commercial Real Estate | 60-89 Days | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 1,820   1,689      
Commercial Real Estate | 60-89 Days | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 1,654   1,689      
Commercial Real Estate | 60-89 Days | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 166   0      
Commercial Real Estate | 90 Days or More | Mortgage loans (gross)            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 1,702   572      
Commercial Real Estate | 90 Days or More | Mortgage loans (gross) | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 1,702   0      
Commercial Real Estate | 90 Days or More | Mortgage loans (gross) | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   572      
Consumer and Other Loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 8,984   9,968      
Current 248,445   242,725      
Total 257,429   252,693      
Allowance for loan losses (6,940) $ (6,434) (6,288) $ (8,770) $ (9,819) $ (8,825)
Consumer and Other Loans | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 3,209   2,860      
Current 248,174   242,725      
Total 251,383   245,585      
Consumer and Other Loans | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 5,775   7,108      
Current 271   0      
Total 6,046   7,108      
Consumer and Other Loans | Home equity and other consumer            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 8,493   9,265      
Current 140,887   151,554      
Total 149,380   160,819      
Consumer and Other Loans | Home equity and other consumer | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 3,209   2,860      
Current 140,616   151,554      
Total 143,825   154,414      
Consumer and Other Loans | Home equity and other consumer | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 5,284   6,405      
Current 271   0      
Total 5,555   6,405      
Consumer and Other Loans | Commercial and industrial            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 491   703      
Current 107,558   91,171      
Total 108,049   91,874      
Consumer and Other Loans | Commercial and industrial | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Current 107,558   91,171      
Total 107,558   91,171      
Consumer and Other Loans | Commercial and industrial | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 491   703      
Current 0   0      
Total 491   703      
Consumer and Other Loans | 30-59 Days            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 2,668   2,358      
Consumer and Other Loans | 30-59 Days | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 2,668   2,358      
Consumer and Other Loans | 30-59 Days | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Consumer and Other Loans | 30-59 Days | Home equity and other consumer            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 2,668   2,358      
Consumer and Other Loans | 30-59 Days | Home equity and other consumer | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 2,668   2,358      
Consumer and Other Loans | 30-59 Days | Home equity and other consumer | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Consumer and Other Loans | 30-59 Days | Commercial and industrial            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Consumer and Other Loans | 30-59 Days | Commercial and industrial | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Consumer and Other Loans | 30-59 Days | Commercial and industrial | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Consumer and Other Loans | 60-89 Days            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 541   502      
Consumer and Other Loans | 60-89 Days | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 541   502      
Consumer and Other Loans | 60-89 Days | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Consumer and Other Loans | 60-89 Days | Home equity and other consumer            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 541   502      
Consumer and Other Loans | 60-89 Days | Home equity and other consumer | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 541   502      
Consumer and Other Loans | 60-89 Days | Home equity and other consumer | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Consumer and Other Loans | 60-89 Days | Commercial and industrial            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Consumer and Other Loans | 60-89 Days | Commercial and industrial | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Consumer and Other Loans | 60-89 Days | Commercial and industrial | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Consumer and Other Loans | 90 Days or More            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 5,775   7,108      
Consumer and Other Loans | 90 Days or More | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Consumer and Other Loans | 90 Days or More | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 5,775   7,108      
Consumer and Other Loans | 90 Days or More | Home equity and other consumer            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 5,284   6,405      
Consumer and Other Loans | 90 Days or More | Home equity and other consumer | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 0   0      
Consumer and Other Loans | 90 Days or More | Home equity and other consumer | Non-accrual loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 5,284   6,405      
Consumer and Other Loans | 90 Days or More | Commercial and industrial            
Loans receivable and allowance for loan losses disclosures            
Total Past Due 491   703      
Consumer and Other Loans | 90 Days or More | Commercial and industrial | Accruing loans            
Loans receivable and allowance for loan losses disclosures            
Total Past Due $ 0   $ 0