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Loans Receivable (Recorded Investment in loans individually evaluated for impairment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Dec. 31, 2015
Financing Receivable, Impaired [Line Items] |  |
Allowance for loan and lease losses | $ 119,012 | $ 234,131
Originated Loan [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | 145,213 | 350,252
Recorded Investment | 128,712 | 325,267
Allowance for loan and lease losses | $ 14,297 | $ 65,180
Coverage | 11.00% | 20.00%
Acquired BBVAPR Accounted for under ASC 310-20 [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | $ 251 | $ 486
Recorded Investment | 230 | 474
Acquired BBVAPR Accounted under ASC 310-30 [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | 937,864 | 1,137,377
Recorded Investment | 895,577 | 1,017,976
Allowance for loan and lease losses | $ 29,819 | $ 25,785
Coverage | 3.00% | 3.00%
Eurobank Acquired Loans |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | $ 141,105 | $ 241,305
Recorded Investment | 125,270 | 236,964
Allowance for loan and lease losses | $ 22,812 | $ 90,178
Coverage | 18.00% | 38.00%
Commercial impaired loans with specific allowance [Member] | Originated Loan [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | $ 16,915 | $ 210,718
Recorded Investment | 14,949 | 199,366
Allowance for loan and lease losses | $ 5,572 | $ 55,947
Coverage | 38.00% | 28.00%
Residential troubled-debt restructuring impaired loans with specific allowance [Member] | Originated Loan [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | $ 100,390 | $ 97,424
Recorded Investment | 92,343 | 89,973
Allowance for loan and lease losses | $ 8,725 | $ 9,233
Coverage | 9.00% | 10.00%
Commercial impaired loans with no specific allowance financing receivable | Originated Loan [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | $ 27,908 | $ 42,110
Recorded Investment | 21,420 | 35,928
Commercial impaired loans with no specific allowance financing receivable | Acquired BBVAPR Accounted for under ASC 310-20 [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | 251 | 486
Recorded Investment | 230 | 474
Mortgage impaired loan pool [Member] | Acquired BBVAPR Accounted under ASC 310-30 [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | 608,751 | 608,294
Recorded Investment | 579,770 | 608,294
Allowance for loan and lease losses | $ 2,664 | $ 1,761
Coverage | 0.00% | 0.00%
Commercial impaired loan pool [Member] | Acquired BBVAPR Accounted under ASC 310-30 [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | $ 168,980 | $ 287,311
Recorded Investment | 164,061 | 168,107
Allowance for loan and lease losses | $ 17,878 | $ 15,455
Coverage | 11.00% | 9.00%
Construction impaired loan pool [Member] | Acquired BBVAPR Accounted under ASC 310-30 [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | $ 52,775 | $ 88,180
Recorded Investment | 51,271 | 87,983
Allowance for loan and lease losses | $ 4,120 | $ 5,707
Coverage | 8.00% | 6.00%
Auto impaired loan pool. | Acquired BBVAPR Accounted under ASC 310-30 [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | $ 107,358 | $ 153,592
Recorded Investment | 100,475 | 153,592
Allowance for loan and lease losses | $ 5,157 | $ 2,862
Coverage | 5.00% | 2.00%
Consumer impaired loan pool. | Eurobank Acquired Loans |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | $ 0 | $ 6,713
Recorded Investment | 1,488 | 2,314
Allowance for loan and lease losses | $ 0 | $ 243
Coverage | 0.00% | 11.00%
Loans secured by 1-4 family residential properties, covered [Member] | Eurobank Acquired Loans |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | $ 83,216 | $ 101,444
Recorded Investment | 70,337 | 92,273
Allowance for loan and lease losses | $ 12,268 | $ 22,570
Coverage | 17.00% | 24.00%
Commercial and Other Construction Loan [Member] | Eurobank Acquired Loans |  |
Financing Receivable, Impaired [Line Items] |  |
Unpaid Principal | $ 57,889 | $ 133,148
Recorded Investment | 53,445 | 142,377
Allowance for loan and lease losses | $ 10,544 | $ 67,365
Coverage | 20.00% | 47.00%

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- Definition Amount of investment in impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953550-111524 + Details
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- Definition Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5212-111524 + 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=49124121&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=49124121&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 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section L -Subsection 1 + Details
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