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Allowance for Loan and Lease Losses and Unfunded Commitments and Letters of Credit (Allowance for Loan and Lease Losses) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | $ 70,043 | $ 68,172
Charged-offs | (3,815) | (6,905)
Recoveries | 2,018 | 2,743
Provision for loan and lease losses | 2,775 | 5,254
Ending balance | 71,021 | 69,264
Specific Reserve | 94 | 2,515
General Allocation | 70,927 | 66,749
Secured Loans [Member] |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 36,050 | 32,321
Charged-offs | (1,109) | (3,770)
Recoveries | 297 | 611
Provision for loan and lease losses | 434 | 2,952
Ending balance | 35,672 | 32,114
Specific Reserve | 0 | 2,500
General Allocation | 35,672 | 29,614
Unsecured Loans [Member] |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 960 | 1,299
Charged-offs | (18) | (3)
Recoveries | 68 | 51
Provision for loan and lease losses | 178 | (47)
Ending balance | 1,188 | 1,300
Specific Reserve | 0 | 0
General Allocation | 1,188 | 1,300
One-to-Four Family Residential [Member] |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 599 | 916
Charged-offs | (307) | 0
Recoveries | 117 | 41
Provision for loan and lease losses | 236 | (303)
Ending balance | 645 | 654
Specific Reserve | 11 | 0
General Allocation | 634 | 654
Commercial Land [Member] |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 1,797 | 1,178
Charged-offs | 0 | 0
Recoveries | 0 | 0
Provision for loan and lease losses | 491 | 84
Ending balance | 2,288 | 1,262
Specific Reserve | 0 | 0
General Allocation | 2,288 | 1,262
Income Property Multifamily [Member] |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 7,342 | 6,616
Charged-offs | 0 | 0
Recoveries | 35 | 61
Provision for loan and lease losses | (574) | 725
Ending balance | 6,803 | 7,402
Specific Reserve | 26 | 0
General Allocation | 6,777 | 7,402
Owner Occupied [Member] |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 6,439 | 5,550
Charged-offs | 0 | 0
Recoveries | 43 | 8
Provision for loan and lease losses | 52 | 528
Ending balance | 6,534 | 6,086
Specific Reserve | 0 | 0
General Allocation | 6,534 | 6,086
Land And Acquisition [Member] |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 316 | 339
Charged-offs | (14) | 0
Recoveries | 20 | 51
Provision for loan and lease losses | 187 | 250
Ending balance | 509 | 640
Specific Reserve | 0 | 0
General Allocation | 509 | 640
Residential Construction [Member] |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 669 | 733
Charged-offs | 0 | 0
Recoveries | 9 | 203
Provision for loan and lease losses | 431 | 513
Ending balance | 1,109 | 1,449
Specific Reserve | 0 | 0
General Allocation | 1,109 | 1,449
Income Property Multifamily Construction [Member] |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 404 | 388
Charged-offs | 0 | 0
Recoveries | 0 | 1
Provision for loan and lease losses | 378 | 326
Ending balance | 782 | 715
Specific Reserve | 0 | 0
General Allocation | 782 | 715
Owner Occupied Construction [Member] |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 1,192 | 1,006
Charged-offs | 0 | 0
Recoveries | 0 | 0
Provision for loan and lease losses | 576 | 204
Ending balance | 1,768 | 1,210
Specific Reserve | 0 | 0
General Allocation | 1,768 | 1,210
Consumer Portfolio Segment [Member] |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 3,534 | 3,531
Charged-offs | (428) | (266)
Recoveries | 285 | 165
Provision for loan and lease losses | (31) | (62)
Ending balance | 3,360 | 3,368
Specific Reserve | 57 | 15
General Allocation | 3,303 | 3,353
Purchased Credit Impaired Loans [Member] |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 10,515 | 13,726
Charged-offs | (1,939) | (2,866)
Recoveries | 1,144 | 1,551
Provision for loan and lease losses | (325) | 653
Ending balance | 9,395 | 13,064
Specific Reserve | 0 | 0
General Allocation | 9,395 | 13,064
Unallocated Financing Receivables [Member] |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 226 | 569
Charged-offs | 0 | 0
Recoveries | 0 | 0
Provision for loan and lease losses | 742 | (569)
Ending balance | 968 | 0
Specific Reserve | 0 | 0
General Allocation | $ 968 | $ 0

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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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