Wells Fargo Real Estate Investment (WFE) 10-Q 6 Nov 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 30, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	Wells Fargo Real Estate Investment Corp.
Entity Central Index Key	1,616,093
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Amendment Flag	false
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		34,058,028

Statement of Income (Unaudited)

Statement of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest income	$ 332,748	$ 224,690	$ 963,229	$ 554,364
Interest expense	3,173	1,272	3,423	2,029
Net interest income	329,575	223,418	959,806	552,335
Provision (reversal of provision) for credit losses	(11,537)	18,743	14,664	30,174
Net interest income after provision for credit losses	341,112	204,675	945,142	522,161
Noninterest income
Pledge fees	15,864	8,715	44,338	16,457
Other fees	(284)	(785)	(83)	(557)
Total noninterest income	15,580	7,930	44,255	15,900
Noninterest expense
Loan servicing costs	20,614	13,309	58,602	30,855
Management fees	6,384	4,441	19,155	11,843
Foreclosed assets	2,713	3,174	7,124	9,627
Other	441	418	779	716
Total noninterest expense	30,152	21,342	85,660	53,041
Net income	326,540	191,263	903,737	485,020
Comprehensive income	326,540	191,263	903,737	485,020
Dividends on preferred stock	4,397	4,397	13,191	13,191
Net income applicable to common stock	$ 322,143	$ 186,866	$ 890,546	$ 471,829
Per common share information
Earnings per common share (in dollars per share)	$ 9.46	$ 8.82	$ 26.15	$ 30.09
Diluted earnings per common share (in dollars per share)	9.46	8.82	26.15	30.09
Dividends declared per common share (in dollars per share)	$ 9.40	$ 6.31	$ 26.28	$ 28.01
Average common shares outstanding (in shares)	34,058	21,179	34,058	15,680
Diluted average common shares outstanding (in shares)	34,058	21,179	34,058	15,680

Balance Sheet

Balance Sheet - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 0	$ 971,349
Loans	32,697,065	31,309,993
Allowance for loan losses	(129,116)	(123,877)
Net loans	32,567,949	31,186,116
Accounts receivable - affiliates, net	82,372	155,813
Other assets	88,491	85,133
Total assets	32,738,812	32,398,411
Liabilities
Line of credit with Bank	341,064	0
Other liabilities	8,018	4,227
Total liabilities	349,082	4,227
Stockholders’ Equity
Preferred stock	110	110
Common stock – $0.01 par value, authorized 100,000,000 shares; issued and outstanding 34,058,028 shares	341	341
Additional paid-in capital	32,550,660	32,550,660
Retained earnings (deficit)	(161,381)	(156,927)
Total stockholders’ equity	32,389,730	32,394,184
Total liabilities and stockholders’ equity	$ 32,738,812	$ 32,398,411

Balance Sheet (Parenthetical)

Balance Sheet (Parenthetical) - $ / shares	Sep. 30, 2017	Dec. 31, 2016
Stockholders’ Equity
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common Stock, Shares, Outstanding	34,058,028	34,058,028
Common stock, shares issued	34,058,028	34,058,028

Statement of Changes in Stockho

Statement of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Series A Preferred Stock [Member]	Series B Preferred Stock [Member]	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Deficit) [Member]	Retained Earnings (Deficit) [Member]Series A Preferred Stock [Member]	Retained Earnings (Deficit) [Member]Series B Preferred Stock [Member]
Beginning balance at Dec. 31, 2015	$ 12,412,907			$ 110	$ 129	$ 12,550,822	$ (138,154)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	485,020						485,020
Common stock issued	20,000,050				212	19,999,838	0
Cash dividends
Preferred securities		$ (13,148)	$ (43)					$ (13,148)	$ (43)
Common stock	(495,000)						(495,000)
Ending balance at Sep. 30, 2016	32,389,786			110	341	32,550,660	(161,325)
Beginning balance at Dec. 31, 2016	32,394,184			110	341	32,550,660	(156,927)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	903,737						903,737
Cash dividends
Preferred securities		$ (13,148)	$ (43)					$ (13,148)	$ (43)
Common stock	(895,000)						(895,000)
Ending balance at Sep. 30, 2017	$ 32,389,730			$ 110	$ 341	$ 32,550,660	$ (161,381)

Statement of Changes in Stockh6

Statement of Changes in Stockholders' Equity (Parenthetical) (Unaudited) - $ / shares	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Common stock, dividend per share (in dollars per share)	$ 26.28	$ 28.01
Series A Preferred Stock [Member]
Preferred stock, dividend per share (in dollars per share)	1.20	1.20
Series B Preferred Stock [Member]
Preferred stock, dividend per share (in dollars per share)	$ 63.75	$ 63.75

Statement of Cash Flows (Unaudi

Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 903,737	$ 485,020
Adjustments to reconcile net income to net cash provided by operating activities:
Net accretion of adjustments on loans	(10,392)	(42,538)
Provision for credit losses	14,664	30,174
Other operating activities, net	(162)	(67,753)
Net cash provided by operating activities	907,847	404,903
Increase (decrease) in cash realized from Loans:
Acquisitions	(4,707,964)	(23,339,146)
Proceeds from payments and sales	3,391,498	2,900,579
Net cash used by investing activities	(1,316,466)	(20,438,567)
Increase (decrease) in cash realized from
Draws on line of credit with Bank	1,885,152	3,146,666
Repayments of line of credit with Bank	(1,544,088)	(2,604,861)
Common stock issued	0	20,000,050
Cash dividends paid	(903,794)	(508,191)
Net cash (used) provided by financing activities	(562,730)	20,033,664
Net change in cash and cash equivalents	(971,349)	0
Cash and cash equivalents at beginning of period	971,349	0
Cash and cash equivalents at end of period	0	0
Change in noncash items:
Transfer from loans to foreclosed assets	$ 9,124	$ 11,920

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 1: Summary of Significant Accounting Policies Wells Fargo Real Estate Investment Corporation (the Company, we, our or us) is an indirect subsidiary of both Wells Fargo & Company (Wells Fargo) and Wells Fargo Bank, National Association (the Bank). The Company, a Delaware corporation, has operated as a real estate investment trust (REIT) since its formation in 1996. The accounting and reporting policies of the Company are in accordance with U.S. generally accepted accounting principles (GAAP). For discussion of our significant accounting policies, see Note 1 (Summary of Significant Accounting Policies) in our Annual Report on Form 10-K for the year ended December 31, 2016 ( 2016 Form 10-K). There were no material changes to these policies in third quarter 2017. The preparation of the financial statements in accordance with GAAP requires management to make estimates based on assumptions about future economic and market conditions that affect the reported amounts of assets and liabilities at the date of the financial statements and income and expenses during the reporting period and the related disclosures. Although our estimates contemplate current conditions and how we expect them to change in the future, it is reasonably possible that actual future conditions could be significantly different than anticipated in those estimates, which could materially affect our results of operations and financial condition. Management has made significant estimates related to the allowance for credit losses (Note 2 (Loans and Allowance for Credit Losses)). Actual results could differ from those estimates. These unaudited interim financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the periods presented. These adjustments are of a normal recurring nature, unless otherwise disclosed in this Form 10-Q. The results of operations in the interim financial statements do not necessarily indicate the results that may be expected for the full year. The interim financial information should be read in conjunction with our 2016 Form 10-K. Accounting Standards with Retrospective Application The following accounting pronouncement has been issued by the FASB but is not yet effective: • ASU 2016-15 – Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. ASU 2016-15 addresses eight specific cash flow issues with the objective of reducing the existing diversity in practice for reporting in the Statement of Cash Flows. The Update is effective for us in first quarter 2018 with retrospective application. Subject to completion of our assessment, we are not expecting this Update to have a material impact on our financial statements. Third Quarter 2016 Common Stock Issuance and Related Loan Acquisitions On August 26, 2016, the Company issued and sold 21.2 million shares of common stock to affiliates of the Company for an aggregate purchase price of $20.0 billion . Following the issuance, indirect wholly-owned subsidiaries of the Bank continue to own 100% of the Company’s common stock. Subsequent to the issuance, the Company used the proceeds along with existing funds to acquire $19.1 billion of real estate 1-4 family first mortgage loans and $1.9 billion of commercial secured by real estate loans. Subsequent Events We have evaluated the effects of events that have occurred subsequent to September 30, 2017 . There were no material subsequent events requiring adjustment to the financial statements or disclosure in the Notes to Financial Statements.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	9 Months Ended
	Sep. 30, 2017
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Loans and Allowance for Credit Losses	Note 2: Loans and Allowance for Credit Losses The Company acquires loans originated or purchased by the Bank. In order to maintain our status as a REIT, the composition of the loans is highly concentrated in real estate. The majority of our loans are concentrated in California , New York , Washington , Virginia and Florida . These markets include approximately 55% of our total loan balance at September 30, 2017 . The following table presents total loans outstanding by portfolio segment and class of financing receivable. Outstanding balances include a total net reduction of $10.6 million and net addition of $65.5 million at September 30, 2017 and December 31, 2016 , respectively, for unamortized premiums and discounts. (in thousands) Sep 30, Dec 31, Total commercial $ 3,514,051 3,984,881 Consumer: Real estate 1-4 family first mortgage 28,275,795 26,236,047 Real estate 1-4 family junior lien mortgage 907,219 1,089,065 Total consumer 29,183,014 27,325,112 Total loans $ 32,697,065 31,309,993 The following table summarizes the proceeds paid or received from the Bank for acquisitions and sales of loans, respectively. 2017 2016 (in thousands) Commercial Consumer Total Commercial Consumer Total Quarter ended September 30, Loan acquisitions $ — — — 1,907,228 19,117,991 21,025,219 Loan sales — (43,641 ) (43,641 ) — (198,549 ) (198,549 ) Nine months ended September 30, Loan acquisitions $ — 4,707,964 4,707,964 1,907,228 21,431,918 23,339,146 Loan sales — (100,670 ) (100,670 ) (128 ) (203,634 ) (203,762 ) Commitments to Lend The contract or notional amount of commercial loan commitments to extend credit was $520.4 million at September 30, 2017 and $438.0 million at December 31, 2016 . Pledged Loans See Note 5 (Transactions With Related Parties) for additional details on our agreement with the Bank to pledge loans. Allowance for Credit Losses During third quarter 2017, Hurricanes Harvey and Irma caused considerable damage in several geographic markets where the Company has significant lending exposure. The impact was in both our consumer and commercial real estate loan portfolios. Based on our analysis to date of the level of insurance coverage, types of loans, location, and potential damage to collateral, we believe the ultimate collectability of these loans will be impacted. Our allowance for credit losses at September 30, 2017 included $10.0 million for coverage of our preliminary estimate of potential hurricane-related losses. We will continue to assess the impact to our customers and business as a result of the hurricanes and refine our estimates as more information becomes available. We are still evaluating the impact on our portfolios from the California wildfires that occurred in October 2017. The following table presents the allowance for credit losses, which consists of the allowance for loan losses and the allowance for unfunded credit commitments. Quarter ended September 30, Nine months ended September 30, (in thousands) 2017 2016 2017 2016 Balance, beginning of period $ 144,447 118,030 125,029 121,538 Provision (reversal of provision) for credit losses (11,537 ) 18,743 14,664 30,174 Interest income on certain impaired loans (1) (1,331 ) (1,604 ) (3,939 ) (4,384 ) Loan charge-offs: Total commercial — — (11 ) (10 ) Consumer: Real estate 1-4 family first mortgage (2,320 ) (4,246 ) (8,120 ) (13,602 ) Real estate 1-4 family junior lien mortgage (3,299 ) (4,468 ) (11,266 ) (16,424 ) Total consumer (5,619 ) (8,714 ) (19,386 ) (30,026 ) Total loan charge-offs (5,619 ) (8,714 ) (19,397 ) (30,036 ) Loan recoveries: Total commercial 59 48 88 77 Consumer: Real estate 1-4 family first mortgage 2,044 1,820 5,197 4,265 Real estate 1-4 family junior lien mortgage 2,360 3,643 8,781 10,332 Total consumer 4,404 5,463 13,978 14,597 Total loan recoveries 4,463 5,511 14,066 14,674 Net loan recoveries (charge-offs) (1,156 ) (3,203 ) (5,331 ) (15,362 ) Balance, end of period $ 130,423 131,966 130,423 131,966 Components: Allowance for loan losses $ 129,116 130,715 129,116 130,715 Allowance for unfunded credit commitments 1,307 1,251 1,307 1,251 Allowance for credit losses $ 130,423 131,966 130,423 131,966 Net loan charge-offs (annualized) as a percentage of average total loans 0.01 % 0.06 0.02 0.13 Allowance for loan losses as a percentage of total loans 0.39 0.39 0.39 0.39 Allowance for credit losses as a percentage of total loans 0.40 0.39 0.40 0.39 (1) Certain impaired loans with an allowance calculated by discounting expected cash flows using the loan’s effective interest rate over the remaining life of the loan recognize changes in allowance attributable to the passage of time as interest income. The following table summarizes the activity in the allowance for credit losses by our commercial and consumer portfolio segments. 2017 2016 (in thousands) Commercial Consumer Total Commercial Consumer Total Quarter ended September 30, Balance, beginning of period $ 27,375 117,072 144,447 15,008 103,022 118,030 Provision (reversal of provision) for credit losses (857 ) (10,680 ) (11,537 ) 12,194 6,549 18,743 Interest income on certain impaired loans — (1,331 ) (1,331 ) — (1,604 ) (1,604 ) Loan charge-offs — (5,619 ) (5,619 ) — (8,714 ) (8,714 ) Loan recoveries 59 4,404 4,463 48 5,463 5,511 Net loan recoveries (charge-offs) 59 (1,215 ) (1,156 ) 48 (3,251 ) (3,203 ) Balance, end of period $ 26,577 103,846 130,423 27,250 104,716 131,966 Nine months ended September 30, Balance, beginning of period $ 29,644 95,385 125,029 17,676 103,862 121,538 Provision (reversal of provision) for credit losses (3,144 ) 17,808 14,664 9,507 20,667 30,174 Interest income on certain impaired loans — (3,939 ) (3,939 ) — (4,384 ) (4,384 ) Loan charge-offs (11 ) (19,386 ) (19,397 ) (10 ) (30,026 ) (30,036 ) Loan recoveries 88 13,978 14,066 77 14,597 14,674 Net loan recoveries (charge-offs) 77 (5,408 ) (5,331 ) 67 (15,429 ) (15,362 ) Balance, end of period $ 26,577 103,846 130,423 27,250 104,716 131,966 The following table disaggregates our allowance for credit losses and recorded investment in loans by impairment methodology. Allowance for credit losses Recorded investment in loans (in thousands) Commercial Consumer Total Commercial Consumer Total September 30, 2017 Collectively evaluated (1) $ 25,251 46,723 71,974 3,510,041 28,755,856 32,265,897 Individually evaluated (2) 1,326 57,123 58,449 4,010 417,164 421,174 Purchased credit-impaired (PCI) (3) — — — — 9,994 9,994 Total $ 26,577 103,846 130,423 3,514,051 29,183,014 32,697,065 December 31, 2016 Collectively evaluated (1) $ 28,535 21,915 50,450 3,980,501 26,860,682 30,841,183 Individually evaluated (2) 1,109 73,470 74,579 3,236 451,070 454,306 PCI (3) — — — 1,144 13,360 14,504 Total $ 29,644 95,385 125,029 3,984,881 27,325,112 31,309,993 (1) Represents loans collectively evaluated for impairment in accordance with Accounting Standards Codification (ASC) 450-20, Loss Contingencies (formerly FAS 5), and pursuant to amendments by ASU 2010-20 regarding allowance for non-impaired loans. (2) Represents loans individually evaluated for impairment in accordance with ASC 310-10, Receivables (formerly FAS 114), and pursuant to amendments by ASU 2010-20 regarding allowance for impaired loans. (3) Represents the allowance and related loan carrying value determined in accordance with ASC 310-30 , Receivables - Loans and Debt Securities Acquired with Deteriorated Credit Quality (formerly SOP 03-3) and pursuant to amendments by ASU 2010-20 regarding allowance for PCI loans. Credit Quality We monitor credit quality by evaluating various attributes and utilize such information in our evaluation of the appropriateness of the allowance for credit losses. The following sections provide the credit quality indicators we most closely monitor. The credit quality indicators are generally based on information as of our financial statement date, with the exception of updated Fair Isaac Corporation (FICO) scores and updated loan-to-value (LTV)/combined LTV (CLTV). We obtain FICO scores at loan origination and the scores are generally updated at least quarterly, except in limited circumstances, including compliance with the Fair Credit Reporting Act (FCRA). Generally, the LTV and CLTV indicators are updated in the second month of each quarter, with updates no older than June 30, 2017 . COMMERCIAL CREDIT QUALITY INDICATORS In addition to monitoring commercial loan concentration risk, we manage a consistent process for assessing commercial loan credit quality. Generally commercial loans are subject to individual risk assessment using our internal borrower and collateral quality ratings. Our ratings are aligned to Pass and Criticized categories. The Criticized category includes Special Mention, Substandard, and Doubtful categories which are defined by bank regulatory agencies. The table below provides a breakdown of outstanding commercial loans by risk category. (in thousands) Total September 30, 2017 By risk category: Pass $ 3,495,129 Criticized 18,922 Total commercial loans $ 3,514,051 December 31, 2016 By risk category: Pass $ 3,976,801 Criticized 8,080 Total commercial loans $ 3,984,881 The following table provides past due information for commercial loans, which we monitor as part of our credit risk management practices. (in thousands) Total September 30, 2017 By delinquency status: Current-29 days past due (DPD) and still accruing $ 3,507,124 30-89 DPD and still accruing 2,611 90+ DPD and still accruing 991 Nonaccrual loans 3,325 Total commercial loans $ 3,514,051 December 31, 2016 By delinquency status: Current-29 DPD and still accruing $ 3,981,306 30-89 DPD and still accruing — 90+ DPD and still accruing 975 Nonaccrual loans 2,600 Total commercial loans $ 3,984,881 CONSUMER CREDIT QUALITY INDICATORS We have various classes of consumer loans that present unique risks. Loan delinquency, FICO credit scores and LTV/CLTV for loan types are common credit quality indicators that we monitor and utilize in our evaluation of the appropriateness of the allowance for credit losses for the consumer portfolio segment. Many of our loss estimation techniques used for the allowance for credit losses rely on delinquency-based models; therefore, delinquency is an important indicator of credit quality and the establishment of our allowance for credit losses. The following table provides the outstanding balances of our consumer portfolio by delinquency status. (in thousands) Real estate 1-4 family first mortgage Real estate 1-4 family junior lien mortgage Total September 30, 2017 By delinquency status: Current-29 DPD $ 28,134,223 870,218 29,004,441 30-59 DPD 57,284 15,788 73,072 60-89 DPD 15,038 6,091 21,129 90-119 DPD 6,708 3,696 10,404 120-179 DPD 6,577 3,457 10,034 180+ DPD 62,366 11,532 73,898 Remaining PCI accounting adjustments (6,401 ) (3,563 ) (9,964 ) Total consumer loans $ 28,275,795 907,219 29,183,014 December 31, 2016 By delinquency status: Current-29 DPD $ 26,083,077 1,046,385 27,129,462 30-59 DPD 50,197 14,254 64,451 60-89 DPD 23,740 8,216 31,956 90-119 DPD 9,962 5,493 15,455 120-179 DPD 9,945 3,971 13,916 180+ DPD 66,606 14,168 80,774 Remaining PCI accounting adjustments (7,480 ) (3,422 ) (10,902 ) Total consumer loans $ 26,236,047 1,089,065 27,325,112 The following table provides a breakdown of our consumer portfolio by FICO. The September 30, 2017 FICO scores for real estate 1-4 family first and junior lien mortgages reflect a new FICO score version we adopted in first quarter 2017 to monitor and manage those portfolios. In general the impact for us is a shift to higher scores, particularly to the 800+ level, as the new FICO score version utilizes a more refined approach that better distinguishes borrower credit risk. FICO is not available for certain loan types and may not be obtained if we deem it unnecessary due to strong collateral and other borrower attributes. (in thousands) Real estate 1-4 family first mortgage Real estate 1-4 family junior lien mortgage Total September 30, 2017 (1) By FICO: < 600 $ 180,770 78,531 259,301 600-639 131,637 53,355 184,992 640-679 304,801 92,405 397,206 680-719 949,482 161,549 1,111,031 720-759 2,288,097 168,060 2,456,157 760-799 5,391,682 136,532 5,528,214 800+ 18,847,163 203,557 19,050,720 No FICO available 188,564 16,793 205,357 Remaining PCI accounting adjustments (6,401 ) (3,563 ) (9,964 ) Total consumer loans $ 28,275,795 907,219 29,183,014 December 31, 2016 By FICO: < 600 $ 227,775 114,855 342,630 600-639 183,318 76,631 259,949 640-679 490,005 132,398 622,403 680-719 1,283,767 198,166 1,481,933 720-759 3,668,121 213,787 3,881,908 760-799 12,926,891 229,558 13,156,449 800+ 7,328,038 113,112 7,441,150 No FICO available 135,612 13,980 149,592 Remaining PCI accounting adjustments (7,480 ) (3,422 ) (10,902 ) Total consumer loans $ 26,236,047 1,089,065 27,325,112 (1) September 30, 2017 amounts reflect updated FICO score version implemented in first quarter 2017. LTV refers to the ratio comparing the loan’s unpaid principal balance to the property’s collateral value. CLTV refers to the combination of first mortgage and junior lien mortgage ratios. LTVs and CLTVs are updated quarterly using a cascade approach which first uses values provided by automated valuation models (AVMs) for the property. If an AVM is not available, then the value is estimated using the original appraised value adjusted by the change in Home Price Index (HPI) for the property location. If an HPI is not available, the original appraised value is used. The HPI value is normally the only method considered for high value properties, generally with an original value of $1 million or more, as the AVM values have proven less accurate for these properties. The following table shows the most updated LTV and CLTV distribution of the real estate 1-4 family first and junior lien mortgage loan portfolios. We consider the trends in residential real estate markets as we monitor credit risk and establish our allowance for credit losses. In the event of a default, any loss should be limited to the portion of the loan amount in excess of the net realizable value of the underlying real estate collateral value. Certain loans do not have an LTV or CLTV due to industry data availability and portfolios acquired from or serviced by other institutions. (in thousands) Real estate 1-4 family first mortgage by LTV Real estate 1-4 family junior lien mortgage by CLTV Total September 30, 2017 By LTV/CLTV: 0-60% $ 15,073,059 307,471 15,380,530 60.01-80% 11,744,611 255,512 12,000,123 80.01-100% 1,252,129 214,921 1,467,050 100.01-120% (1) 139,248 93,312 232,560 > 120% (1) 57,030 38,116 95,146 No LTV/CLTV available 16,119 1,450 17,569 Remaining PCI accounting adjustments (6,401 ) (3,563 ) (9,964 ) Total consumer loans $ 28,275,795 907,219 29,183,014 December 31, 2016 By LTV/CLTV: 0-60% $ 12,639,979 347,932 12,987,911 60.01-80% 11,995,186 297,037 12,292,223 80.01-100% 1,362,748 271,230 1,633,978 100.01-120% (1) 155,553 124,467 280,020 > 120% (1) 69,990 50,226 120,216 No LTV/CLTV available 20,071 1,595 21,666 Remaining PCI accounting adjustments (7,480 ) (3,422 ) (10,902 ) Total consumer loans $ 26,236,047 1,089,065 27,325,112 (1) Reflects total loan balances with LTV/CLTV amounts in excess of 100%. In the event of default, the loss content would generally be limited to only the amount in excess of 100% LTV/CLTV. NONACCRUAL LOANS The following table provides loans on nonaccrual status. PCI loans are excluded from this table because they continue to earn interest from accretable yield, independent of performance in accordance with their contractual terms. (in thousands) Sep 30, Dec 31, Total commercial $ 3,325 2,600 Consumer: Real estate 1-4 family first mortgage 152,861 165,117 Real estate 1-4 family junior lien mortgage 42,237 48,806 Total consumer 195,098 213,923 Total nonaccrual loans (excluding PCI) $ 198,423 216,523 LOANS 90 DAYS OR MORE PAST DUE AND STILL ACCRUING Certain loans 90 days or more past due as to interest or principal are still accruing, because they are (1) well-secured and in the process of collection or (2) real estate 1-4 family mortgage loans exempt under regulatory rules from being classified as nonaccrual until later delinquency, usually 120 days past due. PCI loans of $853 thousand at September 30, 2017 , and $2.3 million at December 31, 2016 , are excluded from this disclosure even though they are 90 days or more contractually past due. These PCI loans are considered to be accruing because they continue to earn interest from accretable yield, independent of performance in accordance with their contractual terms. The following table shows non-PCI loans 90 days or more past due and still accruing. (in thousands) Sep 30, 2017 Dec 31, 2016 Total commercial $ 991 — Consumer: Real estate 1-4 family first mortgage 3,685 4,962 Real estate 1-4 family junior lien mortgage 1,498 2,545 Total consumer 5,183 7,507 Total past due (excluding PCI) $ 6,174 7,507 Impaired Loans The table below summarizes key information for impaired loans. Our impaired loans predominantly include loans on nonaccrual status in the commercial portfolio segment and loans modified in a TDR, whether on accrual or nonaccrual status. These impaired loans generally have estimated losses which are included in the allowance for credit losses. We have impaired loans with no allowance for credit losses when loss content has been previously recognized through charge-offs and we do not anticipate additional charge-offs or losses, or certain loans are currently performing in accordance with their terms and for which no loss has been estimated. Impaired loans exclude PCI loans. The table below includes trial modifications that totaled $8.8 million at September 30, 2017 and $11.8 million at December 31, 2016 . Recorded investment (in thousands) Unpaid principal balance Impaired loans Impaired loans with related allowance for credit losses Related allowance for credit losses September 30, 2017 Total commercial $ 6,029 4,010 4,010 1,326 Consumer: Real estate 1-4 family first mortgage 386,290 323,740 221,407 38,534 Real estate 1-4 family junior lien mortgage 102,897 93,424 75,436 18,589 Total consumer 489,187 417,164 296,843 57,123 Total impaired loans (excluding PCI) $ 495,216 421,174 300,853 58,449 December 31, 2016 Total commercial $ 3,940 3,236 3,236 1,109 Consumer: Real estate 1-4 family first mortgage 419,497 349,627 247,525 49,486 Real estate 1-4 family junior lien mortgage 111,967 101,443 83,887 23,984 Total consumer 531,464 451,070 331,412 73,470 Total impaired loans (excluding PCI) $ 535,404 454,306 334,648 74,579 The following table provides the average recorded investment in impaired loans and the amount of interest income recognized on impaired loans by portfolio segment and class. Quarter ended September 30, Nine months ended September 30, 2017 2016 2017 2016 (in thousands) Average Recognized interest income Average recorded investment Recognized interest income Average Recognized interest income Average recorded investment Recognized interest income Total commercial $ 4,030 10 3,358 11 3,791 33 3,828 60 Consumer: Real estate 1-4 family first mortgage 329,054 5,174 363,593 5,867 338,040 15,927 372,254 17,120 Real estate 1-4 family junior lien mortgage 94,054 2,037 107,935 2,240 97,054 6,236 111,742 6,935 Total consumer 423,108 7,211 471,528 8,107 435,094 22,163 483,996 24,055 Total impaired loans $ 427,138 7,221 474,886 8,118 438,885 22,196 487,824 24,115 Interest income: Cash basis of accounting $ 1,947 2,511 6,262 7,443 Other (1) 5,274 5,607 15,934 16,672 Total interest income $ 7,221 8,118 22,196 24,115 (1) Includes interest recognized on accruing TDRs, interest recognized related to certain impaired loans which have an allowance calculated using discounting, and amortization of purchase accounting adjustments related to certain impaired loans. Troubled Debt Restructuring (TDRs) When, for economic or legal reasons related to a borrower’s financial difficulties, we grant a concession for other than an insignificant period of time to a borrower that we would not otherwise consider, the related loan is classified as a TDR, the balance of which totaled $420.2 million and $454.3 million at September 30, 2017 and December 31, 2016 , respectively. We do not consider loan resolutions, such as foreclosure or short sale to be a TDR. We may require some consumer borrowers experiencing financial difficulty to make trial payments generally for a period of three to four months, according to the terms of a planned permanent modification, to determine if they can perform according to those terms. These arrangements represent trial modifications, which we classify and account for as TDRs. While loans are in trial payment programs, their original terms are not considered modified and they continue to advance through delinquency status and accrue interest according to their original terms. The following table summarizes our TDR modifications for the periods presented by primary modification type and includes the financial effects of these modifications. For those loans that may be modified more than once, the following table reflects each modification that occurred during the period. Loans that both modify and pay off within the period, as well as changes in recorded investment during the period for loans modified in prior periods, are not included in the table. Primary modification type (1) Financial effects of modifications (in thousands) Principal (2) Interest rate reduction Other concessions (3) Total Charge- offs (4) Weighted average interest rate reduction Recorded investment related to interest rate reduction (5) Quarter ended September 30, 2017 Total commercial $ — — — — — — % $ — Consumer: Real estate 1-4 family first mortgage 2,055 386 2,719 5,160 29 3.36 2,078 Real estate 1-4 family junior lien mortgage 33 841 1,889 2,763 363 3.60 842 Trial modifications (6) — — (952 ) (952 ) — — — Total consumer 2,088 1,227 3,656 6,971 392 3.43 2,920 Total $ 2,088 1,227 3,656 6,971 392 3.43 % $ 2,920 Quarter ended September 30, 2016 Total commercial $ — — 2,106 2,106 — — % $ — Consumer: Real estate 1-4 family first mortgage 2,079 3,107 3,267 8,453 258 3.48 5,110 Real estate 1-4 family junior lien mortgage 111 738 866 1,715 437 3.88 848 Trial modifications (6) — — 1,181 1,181 — — — Total consumer 2,190 3,845 5,314 11,349 695 3.54 5,958 Total $ 2,190 3,845 7,420 13,455 695 3.54 % $ 5,958 Primary modification type (1) Financial effects of modifications (in thousands) Principal (2) Interest rate reduction Other concessions (3) Total Charge- offs (4) Weighted average interest rate reduction Recorded investment related to interest rate reduction (5) Nine months ended September 30, 2017 Total commercial $ — — — — — — % $ — Consumer: Real estate 1-4 family first mortgage 8,499 5,481 7,875 21,855 557 3.43 10,767 Real estate 1-4 family junior lien mortgage 1,122 2,604 3,468 7,194 679 4.29 3,088 Trial modifications (6) — — (274 ) (274 ) — — — Total consumer 9,621 8,085 11,069 28,775 1,236 3.63 13,855 Total $ 9,621 8,085 11,069 28,775 1,236 3.63 % $ 13,855 Nine months ended September 30, 2016 Total commercial $ — — 3,954 3,954 — — % $ — Consumer: Real estate 1-4 family first mortgage 5,914 8,086 13,137 27,137 1,297 3.48 12,798 Real estate 1-4 family junior lien mortgage 794 3,425 3,211 7,430 1,478 3.82 4,012 Trial modifications (6) — — (1,133 ) (1,133 ) — — — Total consumer 6,708 11,511 15,215 33,434 2,775 3.56 16,810 Total $ 6,708 11,511 19,169 37,388 2,775 3.56 % $ 16,810 (1) Amounts represent the recorded investment in loans after recognizing the effects of the TDR, if any. TDRs may have multiple types of concessions, but are presented only once in the first modification type based on the order presented in the table above. The reported amounts include loans remodified of $2.4 million and $2.7 million for the quarters ended September 30, 2017 and 2016 , and $7.4 million and $6.9 million for the first nine months of 2017 and 2016 , respectively. (2) Principal modifications include principal forgiveness at the time of the modification, contingent principal forgiveness granted over the life of the loan based on borrower performance, and principal that has been legally separated and deferred to the end of the loan, with a zero percent contractual interest rate. (3) Other concessions include loans discharged in bankruptcy, loan renewals, term extensions and other interest and noninterest adjustments, but exclude modifications that also forgive principal and/or reduce the interest rate. (4) Charge-offs include write-downs of the investment in the loan in the period it is contractually modified. The amount of charge-off will differ from the modification terms if the loan has been charged down prior to the modification based on our policies. In addition, there may be cases where we have a charge-off/down with no legal principal modification. Modifications resulted in legally forgiving principal (actual, contingent or deferred) of $135 thousand and $290 thousand for the quarters ended September 30, 2017 and 2016 , and $753 thousand and $1.0 million for the first nine months of 2017 and 2016 , respectively. (5) Reflects the effect of reduced interest rates on loans with an interest rate concession as one of their concession types, which includes loans reported as a principal primary modification type that also have an interest rate concession. (6) Trial modifications are granted a delay in payments due under the original terms during the trial payment period. However, these loans continue to advance through delinquency status and accrue interest according to their original terms. Any subsequent permanent modification generally includes interest rate related concessions; however, the exact concession type and resulting financial effect are usually not known until the loan is permanently modified. Trial modifications for the period are presented net of previously reported trial modifications that became permanent in the current period. The table below summarizes permanent modification TDRs that have defaulted in the current period within 12 months of their permanent modification date. We report these defaulted TDRs based on a payment default definition of 90 days past due for the commercial portfolio segment and 60 days past due for the consumer portfolio segment. Recorded investment of defaults Quarter ended September 30, Nine months ended September 30, (in thousands) 2017 2016 2017 2016 Total commercial $ — — — 807 Consumer: Real estate 1-4 family first mortgage 1,187 835 2,257 1,759 Real estate 1-4 family junior lien mortgage 60 573 623 885 Total consumer 1,247 1,408 2,880 2,644 Total $ 1,247 1,408 2,880 3,451

Fair Values of Assets and Liabi

Fair Values of Assets and Liabilities	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Fair Values of Assets and Liabilities	Note 3: Fair Values of Assets and Liabilities We use fair value measurements to record fair value adjustments to certain assets and to determine fair value disclosures. We did not elect the fair value option for any financial instruments as permitted in FASB ASC 825, Financial Instruments , which allows companies to elect to carry certain financial instruments at fair value with corresponding changes in fair value reported in the results of operations. As of September 30, 2017 and December 31, 2016 , assets measured at fair value on a nonrecurring basis were less than 1% of total assets. See Note 1 (Summary of Significant Accounting Policies) in our 2016 Form 10-K for additional information about our fair value measurement policies and methods. Disclosures about Fair Value of Financial Instruments The table below is a summary of fair value estimates by level for financial instruments. The carrying amounts in the following table are recorded in the balance sheet under the indicated captions. We have not included assets and liabilities that are not financial instruments in our disclosure, such as other assets and other liabilities. The total of the fair value calculations presented does not represent, and should not be construed to represent, the underlying value of the Company. Carrying amount Estimated fair value (in thousands) Level 1 Level 2 Level 3 Total September 30, 2017 Financial assets Cash and cash equivalents (1) $ — — — — — Loans, net (2) 32,567,949 — — 33,669,834 33,669,834 Financial liabilities Line of credit with Bank (1) 341,064 — — 341,064 341,064 December 31, 2016 Financial assets Cash and cash equivalents (1) $ 971,349 971,349 — — 971,349 Loans, net (2) 31,186,116 — — 31,732,422 31,732,422 Financial liabilities Line of credit with Bank (1) — — — — — (1) Amounts consist of financial instruments in which carrying value approximates fair value. (2) Carrying amount is net of allowance for loan losses.

Common and Preferred Stock

Common and Preferred Stock	9 Months Ended
	Sep. 30, 2017
Equity [Abstract]
Common and Preferred Stock	Note 4: Common and Preferred Stock The following table provides details of our authorized common and preferred stock. September 30, 2017 and December 31, 2016 Liquidation Shares Shares Par value Carrying Preferred stock: Series A 6.375%, Cumulative, Perpetual Series A Preferred Stock $ 25 11,000,000 11,000,000 $ 0.01 110,000 Series B $85 Annual Dividend Per Share, Cumulative, Perpetual Series B Preferred Stock 1,000 1,000 667 0.01 7 Common stock 100,000,000 34,058,028 0.01 340,580 Total 111,001,000 45,058,695 $ 450,587 In the event that the Company is liquidated or dissolved, the holders of the Series A and Series B preferred stock will be entitled to a liquidation preference for each security plus any authorized, declared and unpaid dividends that will be paid prior to any payments to common stockholders. With respect to the payment of dividends and liquidation preference, the Series A preferred stock ranks on parity with Series B preferred stock and senior to the Company’s common stock. The Company may issue additional shares of common stock to affiliates of Wells Fargo without further action by the Series A or Series B stockholders. Additional information related to Series A and B preferred stock, including the ability of the Company to redeem each series, is included in Note 5 (Common and Preferred Stock) to Financial Statements in our 2016 Form 10-K. The certificate of designation for the Series A preferred stock limits our ability to pay dividends on our common stock or make any payment of interest or principal on our line of credit with the Bank if the dividend coverage ratio for the four prior fiscal quarters is less than 150% . The dividend coverage ratio, expressed as a percentage, is calculated by dividing the four prior fiscal quarters’ funds from operations, defined as GAAP net income excluding gains or losses from sales of property, by the amount that would be required to pay annual dividends on the Series A and Series B preferred stock. At September 30, 2017 , the dividend coverage ratio was 6,837% .

Transactions With Related Parti

Transactions With Related Parties	9 Months Ended
	Sep. 30, 2017
Related Party Transactions [Abstract]
Transactions With Related Parties	Note 5: Transactions With Related Parties The Company engages in various transactions and agreements with affiliated parties in the ordinary course of business. Due to the common ownership of the Company and the affiliated parties by Wells Fargo, these transactions and agreements may reflect circumstances and considerations that could differ from those conducted with unaffiliated parties. The principal items related to transactions with affiliated parties included in the accompanying statement of income and balance sheet are described in the table and narrative below. Quarter ended September 30, Nine months ended September 30, (in thousands) 2017 2016 2017 2016 Income statement data Interest income: Net accretion of adjustments on loans $ 4,130 4,694 10,392 42,538 Interest on deposits 2 4,064 8,498 4,303 Total interest income 4,132 8,758 18,890 46,841 Pledge fees 15,864 8,715 44,338 16,457 Interest expense 3,173 1,272 3,423 2,029 Loan servicing costs 20,614 13,308 58,602 30,848 Management fees 6,384 4,441 19,155 11,843 (in thousands) Sep 30, Dec 31, Balance sheet related data Cash and cash equivalents $ — 971,349 Loan acquisitions (year-to-date) 4,707,964 23,339,146 Proceeds from common stock issuance (year-to-date) — 20,000,050 Loan sales (book value) (year-to-date) (101,285 ) (424,556 ) Pledged loans (carrying value) (1) 17,843,817 20,239,773 Foreclosed asset sales (year-to-date) (9,066 ) (10,915 ) Line of credit with Bank 341,064 — Accounts receivable - affiliates, net 82,372 155,813 (1) The fair value of pledged loans was approximately $18.4 billion and $20.4 billion at September 30, 2017 and December 31, 2016 , respectively. Loans We acquire and sell loans to and from the Bank. The acquisitions and sales are transacted at fair value resulting in acquisition discounts and premiums or gains and losses on sales. The net acquisition discount accretion or premium amortization is reported within interest income. Gains or losses on sales of loans are included within noninterest income. The certificate of designation for the Series A preferred stock limits our ability to pledge loans to an aggregate amount not exceeding 80% of our total assets at any time as collateral on behalf of the Bank for the Bank’s access to secured borrowing facilities through the Federal Home Loan Banks or the discount window of Federal Reserve Banks. In exchange for the pledge of our loan assets, the Bank will pay us a fee that is consistent with market terms. At September 30, 2017 and September 30, 2016 , the fee was equal to an annual rate of 34 basis points ( 0.34% ) and 28 basis points ( 0.28% ), respectively, as applied to the unpaid principal balance of pledged loans on a monthly basis. Such fee may be renegotiated by us and the Bank from time to time. Loan Servicing Costs The loans in our portfolio are predominantly serviced by the Bank pursuant to the terms of participation and servicing and assignment agreements. In some instances, the Bank has delegated servicing responsibility to third parties that are not affiliated with us or the Bank. Depending on the loan type, the monthly servicing fee charges are based in part on (a) outstanding principal balances, (b) a flat fee per month, or (c) a total loan commitment amount. Management Fees We pay the Bank a management fee to reimburse for general overhead expenses, including allocations of technology support and a combination of finance and accounting, risk management and other general overhead expenses incurred on our behalf. Management fees include direct and indirect expense allocations. Indirect expenses are allocated based on ratios that use our proportion of expense activity drivers. The expense activity drivers and ratios may change from time to time. Deposits Interest income earned on deposits is included in interest income. Our cash management process includes applying operating cash flows to reduce any outstanding balance on our line of credit with the Bank. Operating cash flows are settled through our affiliate accounts receivable/payable process. Upon settlement cash received is either applied to reduce our line of credit outstanding or retained as a deposit with the Bank. Foreclosed Assets We sell foreclosed assets back to the Bank from time to time at estimated fair value. Line of Credit We have a revolving line of credit with the Bank. Effective October 2017, the borrowing capacity was increased from $2.2 billion to $5.0 billion and the rate of interest was changed from the average federal funds rate plus 12.5 basis points ( 0.125% ) to the three -month London Interbank Offered Rate plus 4.4 basis points ( 0.044% ). Accounts Receivable - Affiliates, Net Accounts receivable from or payable to the Bank or its affiliates result from intercompany transactions which include net loan paydowns, interest receipts, and other transactions, including those transactions noted herein, which have not yet settled.

Summary of Significant Accoun13

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2017
Significant Accounting Policies [Line Items]
Nature of Operations	Wells Fargo Real Estate Investment Corporation (the Company, we, our or us) is an indirect subsidiary of both Wells Fargo & Company (Wells Fargo) and Wells Fargo Bank, National Association (the Bank). The Company, a Delaware corporation, has operated as a real estate investment trust (REIT) since its formation in 1996.
Use of Estimates	The accounting and reporting policies of the Company are in accordance with U.S. generally accepted accounting principles (GAAP). For discussion of our significant accounting policies, see Note 1 (Summary of Significant Accounting Policies) in our Annual Report on Form 10-K for the year ended December 31, 2016 ( 2016 Form 10-K). There were no material changes to these policies in third quarter 2017. The preparation of the financial statements in accordance with GAAP requires management to make estimates based on assumptions about future economic and market conditions that affect the reported amounts of assets and liabilities at the date of the financial statements and income and expenses during the reporting period and the related disclosures. Although our estimates contemplate current conditions and how we expect them to change in the future, it is reasonably possible that actual future conditions could be significantly different than anticipated in those estimates, which could materially affect our results of operations and financial condition. Management has made significant estimates related to the allowance for credit losses (Note 2 (Loans and Allowance for Credit Losses)). Actual results could differ from those estimates.
Comparability of Prior Year Financial Data	These unaudited interim financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the periods presented. These adjustments are of a normal recurring nature, unless otherwise disclosed in this Form 10-Q. The results of operations in the interim financial statements do not necessarily indicate the results that may be expected for the full year. The interim financial information should be read in conjunction with our 2016 Form 10-K.
Accounting Standards with Retrospective Application [Policy Text Block]	Accounting Standards with Retrospective Application The following accounting pronouncement has been issued by the FASB but is not yet effective: • ASU 2016-15 – Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments.
Subsequent Events	Subsequent Events We have evaluated the effects of events that have occurred subsequent to September 30, 2017 . There were no material subsequent events requiring adjustment to the financial statements or disclosure in the Notes to Financial Statements.
Accounting Standards Update 2016-15 [Member]
Significant Accounting Policies [Line Items]
Accounting Standards with Retrospective Application [Policy Text Block]	ASU 2016-15 addresses eight specific cash flow issues with the objective of reducing the existing diversity in practice for reporting in the Statement of Cash Flows. The Update is effective for us in first quarter 2018 with retrospective application. Subject to completion of our assessment, we are not expecting this Update to have a material impact on our financial statements.

Loans and Allowance for Credi14

Loans and Allowance for Credit Losses (Tables)	9 Months Ended
	Sep. 30, 2017
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Loans and Allowance for Credit Losses, Loans Outstanding	The following table presents total loans outstanding by portfolio segment and class of financing receivable. Outstanding balances include a total net reduction of $10.6 million and net addition of $65.5 million at September 30, 2017 and December 31, 2016 , respectively, for unamortized premiums and discounts. (in thousands) Sep 30, Dec 31, Total commercial $ 3,514,051 3,984,881 Consumer: Real estate 1-4 family first mortgage 28,275,795 26,236,047 Real estate 1-4 family junior lien mortgage 907,219 1,089,065 Total consumer 29,183,014 27,325,112 Total loans $ 32,697,065 31,309,993
Loans and Allowance for Credit Losses, Significant Activity	The following table summarizes the proceeds paid or received from the Bank for acquisitions and sales of loans, respectively. 2017 2016 (in thousands) Commercial Consumer Total Commercial Consumer Total Quarter ended September 30, Loan acquisitions $ — — — 1,907,228 19,117,991 21,025,219 Loan sales — (43,641 ) (43,641 ) — (198,549 ) (198,549 ) Nine months ended September 30, Loan acquisitions $ — 4,707,964 4,707,964 1,907,228 21,431,918 23,339,146 Loan sales — (100,670 ) (100,670 ) (128 ) (203,634 ) (203,762 )
Loans and Allowance for Credit Losses, Allowance for Credit Losses	The following table presents the allowance for credit losses, which consists of the allowance for loan losses and the allowance for unfunded credit commitments. Quarter ended September 30, Nine months ended September 30, (in thousands) 2017 2016 2017 2016 Balance, beginning of period $ 144,447 118,030 125,029 121,538 Provision (reversal of provision) for credit losses (11,537 ) 18,743 14,664 30,174 Interest income on certain impaired loans (1) (1,331 ) (1,604 ) (3,939 ) (4,384 ) Loan charge-offs: Total commercial — — (11 ) (10 ) Consumer: Real estate 1-4 family first mortgage (2,320 ) (4,246 ) (8,120 ) (13,602 ) Real estate 1-4 family junior lien mortgage (3,299 ) (4,468 ) (11,266 ) (16,424 ) Total consumer (5,619 ) (8,714 ) (19,386 ) (30,026 ) Total loan charge-offs (5,619 ) (8,714 ) (19,397 ) (30,036 ) Loan recoveries: Total commercial 59 48 88 77 Consumer: Real estate 1-4 family first mortgage 2,044 1,820 5,197 4,265 Real estate 1-4 family junior lien mortgage 2,360 3,643 8,781 10,332 Total consumer 4,404 5,463 13,978 14,597 Total loan recoveries 4,463 5,511 14,066 14,674 Net loan recoveries (charge-offs) (1,156 ) (3,203 ) (5,331 ) (15,362 ) Balance, end of period $ 130,423 131,966 130,423 131,966 Components: Allowance for loan losses $ 129,116 130,715 129,116 130,715 Allowance for unfunded credit commitments 1,307 1,251 1,307 1,251 Allowance for credit losses $ 130,423 131,966 130,423 131,966 Net loan charge-offs (annualized) as a percentage of average total loans 0.01 % 0.06 0.02 0.13 Allowance for loan losses as a percentage of total loans 0.39 0.39 0.39 0.39 Allowance for credit losses as a percentage of total loans 0.40 0.39 0.40 0.39 (1) Certain impaired loans with an allowance calculated by discounting expected cash flows using the loan’s effective interest rate over the remaining life of the loan recognize changes in allowance attributable to the passage of time as interest income.
Loans and Allowance for Credit Losses, Allowance Activity by Portfolio Segment	The following table summarizes the activity in the allowance for credit losses by our commercial and consumer portfolio segments. 2017 2016 (in thousands) Commercial Consumer Total Commercial Consumer Total Quarter ended September 30, Balance, beginning of period $ 27,375 117,072 144,447 15,008 103,022 118,030 Provision (reversal of provision) for credit losses (857 ) (10,680 ) (11,537 ) 12,194 6,549 18,743 Interest income on certain impaired loans — (1,331 ) (1,331 ) — (1,604 ) (1,604 ) Loan charge-offs — (5,619 ) (5,619 ) — (8,714 ) (8,714 ) Loan recoveries 59 4,404 4,463 48 5,463 5,511 Net loan recoveries (charge-offs) 59 (1,215 ) (1,156 ) 48 (3,251 ) (3,203 ) Balance, end of period $ 26,577 103,846 130,423 27,250 104,716 131,966 Nine months ended September 30, Balance, beginning of period $ 29,644 95,385 125,029 17,676 103,862 121,538 Provision (reversal of provision) for credit losses (3,144 ) 17,808 14,664 9,507 20,667 30,174 Interest income on certain impaired loans — (3,939 ) (3,939 ) — (4,384 ) (4,384 ) Loan charge-offs (11 ) (19,386 ) (19,397 ) (10 ) (30,026 ) (30,036 ) Loan recoveries 88 13,978 14,066 77 14,597 14,674 Net loan recoveries (charge-offs) 77 (5,408 ) (5,331 ) 67 (15,429 ) (15,362 ) Balance, end of period $ 26,577 103,846 130,423 27,250 104,716 131,966
Loans and Allowance for Credit Losses, by Impairment Methodology	The following table disaggregates our allowance for credit losses and recorded investment in loans by impairment methodology. Allowance for credit losses Recorded investment in loans (in thousands) Commercial Consumer Total Commercial Consumer Total September 30, 2017 Collectively evaluated (1) $ 25,251 46,723 71,974 3,510,041 28,755,856 32,265,897 Individually evaluated (2) 1,326 57,123 58,449 4,010 417,164 421,174 Purchased credit-impaired (PCI) (3) — — — — 9,994 9,994 Total $ 26,577 103,846 130,423 3,514,051 29,183,014 32,697,065 December 31, 2016 Collectively evaluated (1) $ 28,535 21,915 50,450 3,980,501 26,860,682 30,841,183 Individually evaluated (2) 1,109 73,470 74,579 3,236 451,070 454,306 PCI (3) — — — 1,144 13,360 14,504 Total $ 29,644 95,385 125,029 3,984,881 27,325,112 31,309,993 (1) Represents loans collectively evaluated for impairment in accordance with Accounting Standards Codification (ASC) 450-20, Loss Contingencies (formerly FAS 5), and pursuant to amendments by ASU 2010-20 regarding allowance for non-impaired loans. (2) Represents loans individually evaluated for impairment in accordance with ASC 310-10, Receivables (formerly FAS 114), and pursuant to amendments by ASU 2010-20 regarding allowance for impaired loans. (3) Represents the allowance and related loan carrying value determined in accordance with ASC 310-30 , Receivables - Loans and Debt Securities Acquired with Deteriorated Credit Quality (formerly SOP 03-3) and pursuant to amendments by ASU 2010-20 regarding allowance for PCI loans.
Loans and Allowance for Credit Losses, Loans by Credit Quality Indicator, Commercial	The table below provides a breakdown of outstanding commercial loans by risk category. (in thousands) Total September 30, 2017 By risk category: Pass $ 3,495,129 Criticized 18,922 Total commercial loans $ 3,514,051 December 31, 2016 By risk category: Pass $ 3,976,801 Criticized 8,080 Total commercial loans $ 3,984,881
Loans and Allowance for Credit Losses, Loans by Delinquency Status, Commercial	The following table provides past due information for commercial loans, which we monitor as part of our credit risk management practices. (in thousands) Total September 30, 2017 By delinquency status: Current-29 days past due (DPD) and still accruing $ 3,507,124 30-89 DPD and still accruing 2,611 90+ DPD and still accruing 991 Nonaccrual loans 3,325 Total commercial loans $ 3,514,051 December 31, 2016 By delinquency status: Current-29 DPD and still accruing $ 3,981,306 30-89 DPD and still accruing — 90+ DPD and still accruing 975 Nonaccrual loans 2,600 Total commercial loans $ 3,984,881
Loans and Allowance for Credit Losses, Loans by Delinquency Status, Consumer	The following table provides the outstanding balances of our consumer portfolio by delinquency status. (in thousands) Real estate 1-4 family first mortgage Real estate 1-4 family junior lien mortgage Total September 30, 2017 By delinquency status: Current-29 DPD $ 28,134,223 870,218 29,004,441 30-59 DPD 57,284 15,788 73,072 60-89 DPD 15,038 6,091 21,129 90-119 DPD 6,708 3,696 10,404 120-179 DPD 6,577 3,457 10,034 180+ DPD 62,366 11,532 73,898 Remaining PCI accounting adjustments (6,401 ) (3,563 ) (9,964 ) Total consumer loans $ 28,275,795 907,219 29,183,014 December 31, 2016 By delinquency status: Current-29 DPD $ 26,083,077 1,046,385 27,129,462 30-59 DPD 50,197 14,254 64,451 60-89 DPD 23,740 8,216 31,956 90-119 DPD 9,962 5,493 15,455 120-179 DPD 9,945 3,971 13,916 180+ DPD 66,606 14,168 80,774 Remaining PCI accounting adjustments (7,480 ) (3,422 ) (10,902 ) Total consumer loans $ 26,236,047 1,089,065 27,325,112
Loans and allowance for Credit Losses, Loans by FICO Score, Consumer	The following table provides a breakdown of our consumer portfolio by FICO. The September 30, 2017 FICO scores for real estate 1-4 family first and junior lien mortgages reflect a new FICO score version we adopted in first quarter 2017 to monitor and manage those portfolios. In general the impact for us is a shift to higher scores, particularly to the 800+ level, as the new FICO score version utilizes a more refined approach that better distinguishes borrower credit risk. FICO is not available for certain loan types and may not be obtained if we deem it unnecessary due to strong collateral and other borrower attributes. (in thousands) Real estate 1-4 family first mortgage Real estate 1-4 family junior lien mortgage Total September 30, 2017 (1) By FICO: < 600 $ 180,770 78,531 259,301 600-639 131,637 53,355 184,992 640-679 304,801 92,405 397,206 680-719 949,482 161,549 1,111,031 720-759 2,288,097 168,060 2,456,157 760-799 5,391,682 136,532 5,528,214 800+ 18,847,163 203,557 19,050,720 No FICO available 188,564 16,793 205,357 Remaining PCI accounting adjustments (6,401 ) (3,563 ) (9,964 ) Total consumer loans $ 28,275,795 907,219 29,183,014 December 31, 2016 By FICO: < 600 $ 227,775 114,855 342,630 600-639 183,318 76,631 259,949 640-679 490,005 132,398 622,403 680-719 1,283,767 198,166 1,481,933 720-759 3,668,121 213,787 3,881,908 760-799 12,926,891 229,558 13,156,449 800+ 7,328,038 113,112 7,441,150 No FICO available 135,612 13,980 149,592 Remaining PCI accounting adjustments (7,480 ) (3,422 ) (10,902 ) Total consumer loans $ 26,236,047 1,089,065 27,325,112 (1) September 30, 2017 amounts reflect updated FICO score version implemented in first quarter 2017.
Loans and Allowance for Credit Losses, Loans by Loan to Value Ratio, Consumer	The following table shows the most updated LTV and CLTV distribution of the real estate 1-4 family first and junior lien mortgage loan portfolios. We consider the trends in residential real estate markets as we monitor credit risk and establish our allowance for credit losses. In the event of a default, any loss should be limited to the portion of the loan amount in excess of the net realizable value of the underlying real estate collateral value. Certain loans do not have an LTV or CLTV due to industry data availability and portfolios acquired from or serviced by other institutions. (in thousands) Real estate 1-4 family first mortgage by LTV Real estate 1-4 family junior lien mortgage by CLTV Total September 30, 2017 By LTV/CLTV: 0-60% $ 15,073,059 307,471 15,380,530 60.01-80% 11,744,611 255,512 12,000,123 80.01-100% 1,252,129 214,921 1,467,050 100.01-120% (1) 139,248 93,312 232,560 > 120% (1) 57,030 38,116 95,146 No LTV/CLTV available 16,119 1,450 17,569 Remaining PCI accounting adjustments (6,401 ) (3,563 ) (9,964 ) Total consumer loans $ 28,275,795 907,219 29,183,014 December 31, 2016 By LTV/CLTV: 0-60% $ 12,639,979 347,932 12,987,911 60.01-80% 11,995,186 297,037 12,292,223 80.01-100% 1,362,748 271,230 1,633,978 100.01-120% (1) 155,553 124,467 280,020 > 120% (1) 69,990 50,226 120,216 No LTV/CLTV available 20,071 1,595 21,666 Remaining PCI accounting adjustments (7,480 ) (3,422 ) (10,902 ) Total consumer loans $ 26,236,047 1,089,065 27,325,112 (1) Reflects total loan balances with LTV/CLTV amounts in excess of 100%. In the event of default, the loss content would generally be limited to only the amount in excess of 100% LTV/CLTV.
Loans and Allowance for Credit Losses, Nonaccrual Loans	The following table provides loans on nonaccrual status. PCI loans are excluded from this table because they continue to earn interest from accretable yield, independent of performance in accordance with their contractual terms. (in thousands) Sep 30, Dec 31, Total commercial $ 3,325 2,600 Consumer: Real estate 1-4 family first mortgage 152,861 165,117 Real estate 1-4 family junior lien mortgage 42,237 48,806 Total consumer 195,098 213,923 Total nonaccrual loans (excluding PCI) $ 198,423 216,523
Loans and Allowance for Credit Losses, 90 days Past Due but Still Accruing Loans	The following table shows non-PCI loans 90 days or more past due and still accruing. (in thousands) Sep 30, 2017 Dec 31, 2016 Total commercial $ 991 — Consumer: Real estate 1-4 family first mortgage 3,685 4,962 Real estate 1-4 family junior lien mortgage 1,498 2,545 Total consumer 5,183 7,507 Total past due (excluding PCI) $ 6,174 7,507
Loans and Allowance for Credit Losses, Impaired Loans	The table below summarizes key information for impaired loans. Our impaired loans predominantly include loans on nonaccrual status in the commercial portfolio segment and loans modified in a TDR, whether on accrual or nonaccrual status. These impaired loans generally have estimated losses which are included in the allowance for credit losses. We have impaired loans with no allowance for credit losses when loss content has been previously recognized through charge-offs and we do not anticipate additional charge-offs or losses, or certain loans are currently performing in accordance with their terms and for which no loss has been estimated. Impaired loans exclude PCI loans. The table below includes trial modifications that totaled $8.8 million at September 30, 2017 and $11.8 million at December 31, 2016 . Recorded investment (in thousands) Unpaid principal balance Impaired loans Impaired loans with related allowance for credit losses Related allowance for credit losses September 30, 2017 Total commercial $ 6,029 4,010 4,010 1,326 Consumer: Real estate 1-4 family first mortgage 386,290 323,740 221,407 38,534 Real estate 1-4 family junior lien mortgage 102,897 93,424 75,436 18,589 Total consumer 489,187 417,164 296,843 57,123 Total impaired loans (excluding PCI) $ 495,216 421,174 300,853 58,449 December 31, 2016 Total commercial $ 3,940 3,236 3,236 1,109 Consumer: Real estate 1-4 family first mortgage 419,497 349,627 247,525 49,486 Real estate 1-4 family junior lien mortgage 111,967 101,443 83,887 23,984 Total consumer 531,464 451,070 331,412 73,470 Total impaired loans (excluding PCI) $ 535,404 454,306 334,648 74,579
Loans and Allowance for Credit Losses, Impaired Loans, Average Recorded Investment and Interest Income	The following table provides the average recorded investment in impaired loans and the amount of interest income recognized on impaired loans by portfolio segment and class. Quarter ended September 30, Nine months ended September 30, 2017 2016 2017 2016 (in thousands) Average Recognized interest income Average recorded investment Recognized interest income Average Recognized interest income Average recorded investment Recognized interest income Total commercial $ 4,030 10 3,358 11 3,791 33 3,828 60 Consumer: Real estate 1-4 family first mortgage 329,054 5,174 363,593 5,867 338,040 15,927 372,254 17,120 Real estate 1-4 family junior lien mortgage 94,054 2,037 107,935 2,240 97,054 6,236 111,742 6,935 Total consumer 423,108 7,211 471,528 8,107 435,094 22,163 483,996 24,055 Total impaired loans $ 427,138 7,221 474,886 8,118 438,885 22,196 487,824 24,115 Interest income: Cash basis of accounting $ 1,947 2,511 6,262 7,443 Other (1) 5,274 5,607 15,934 16,672 Total interest income $ 7,221 8,118 22,196 24,115 (1) Includes interest recognized on accruing TDRs, interest recognized related to certain impaired loans which have an allowance calculated using discounting, and amortization of purchase accounting adjustments related to certain impaired loans.
Loans and Allowance for Credit Losses, Troubled Debt Restructurings, Modification by Type	The following table summarizes our TDR modifications for the periods presented by primary modification type and includes the financial effects of these modifications. For those loans that may be modified more than once, the following table reflects each modification that occurred during the period. Loans that both modify and pay off within the period, as well as changes in recorded investment during the period for loans modified in prior periods, are not included in the table. Primary modification type (1) Financial effects of modifications (in thousands) Principal (2) Interest rate reduction Other concessions (3) Total Charge- offs (4) Weighted average interest rate reduction Recorded investment related to interest rate reduction (5) Quarter ended September 30, 2017 Total commercial $ — — — — — — % $ — Consumer: Real estate 1-4 family first mortgage 2,055 386 2,719 5,160 29 3.36 2,078 Real estate 1-4 family junior lien mortgage 33 841 1,889 2,763 363 3.60 842 Trial modifications (6) — — (952 ) (952 ) — — — Total consumer 2,088 1,227 3,656 6,971 392 3.43 2,920 Total $ 2,088 1,227 3,656 6,971 392 3.43 % $ 2,920 Quarter ended September 30, 2016 Total commercial $ — — 2,106 2,106 — — % $ — Consumer: Real estate 1-4 family first mortgage 2,079 3,107 3,267 8,453 258 3.48 5,110 Real estate 1-4 family junior lien mortgage 111 738 866 1,715 437 3.88 848 Trial modifications (6) — — 1,181 1,181 — — — Total consumer 2,190 3,845 5,314 11,349 695 3.54 5,958 Total $ 2,190 3,845 7,420 13,455 695 3.54 % $ 5,958 Primary modification type (1) Financial effects of modifications (in thousands) Principal (2) Interest rate reduction Other concessions (3) Total Charge- offs (4) Weighted average interest rate reduction Recorded investment related to interest rate reduction (5) Nine months ended September 30, 2017 Total commercial $ — — — — — — % $ — Consumer: Real estate 1-4 family first mortgage 8,499 5,481 7,875 21,855 557 3.43 10,767 Real estate 1-4 family junior lien mortgage 1,122 2,604 3,468 7,194 679 4.29 3,088 Trial modifications (6) — — (274 ) (274 ) — — — Total consumer 9,621 8,085 11,069 28,775 1,236 3.63 13,855 Total $ 9,621 8,085 11,069 28,775 1,236 3.63 % $ 13,855 Nine months ended September 30, 2016 Total commercial $ — — 3,954 3,954 — — % $ — Consumer: Real estate 1-4 family first mortgage 5,914 8,086 13,137 27,137 1,297 3.48 12,798 Real estate 1-4 family junior lien mortgage 794 3,425 3,211 7,430 1,478 3.82 4,012 Trial modifications (6) — — (1,133 ) (1,133 ) — — — Total consumer 6,708 11,511 15,215 33,434 2,775 3.56 16,810 Total $ 6,708 11,511 19,169 37,388 2,775 3.56 % $ 16,810 (1) Amounts represent the recorded investment in loans after recognizing the effects of the TDR, if any. TDRs may have multiple types of concessions, but are presented only once in the first modification type based on the order presented in the table above. The reported amounts include loans remodified of $2.4 million and $2.7 million for the quarters ended September 30, 2017 and 2016 , and $7.4 million and $6.9 million for the first nine months of 2017 and 2016 , respectively. (2) Principal modifications include principal forgiveness at the time of the modification, contingent principal forgiveness granted over the life of the loan based on borrower performance, and principal that has been legally separated and deferred to the end of the loan, with a zero percent contractual interest rate. (3) Other concessions include loans discharged in bankruptcy, loan renewals, term extensions and other interest and noninterest adjustments, but exclude modifications that also forgive principal and/or reduce the interest rate. (4) Charge-offs include write-downs of the investment in the loan in the period it is contractually modified. The amount of charge-off will differ from the modification terms if the loan has been charged down prior to the modification based on our policies. In addition, there may be cases where we have a charge-off/down with no legal principal modification. Modifications resulted in legally forgiving principal (actual, contingent or deferred) of $135 thousand and $290 thousand for the quarters ended September 30, 2017 and 2016 , and $753 thousand and $1.0 million for the first nine months of 2017 and 2016 , respectively. (5) Reflects the effect of reduced interest rates on loans with an interest rate concession as one of their concession types, which includes loans reported as a principal primary modification type that also have an interest rate concession. (6) Trial modifications are granted a delay in payments due under the original terms during the trial payment period. However, these loans continue to advance through delinquency status and accrue interest according to their original terms. Any subsequent permanent modification generally includes interest rate related concessions; however, the exact concession type and resulting financial effect are usually not known until the loan is permanently modified. Trial modifications for the period are presented net of previously reported trial modifications that became permanent in the current period.
Loans and Allowance for Credit Losses, Troubled Debt Restructuring, Current Defaults	The table below summarizes permanent modification TDRs that have defaulted in the current period within 12 months of their permanent modification date. We report these defaulted TDRs based on a payment default definition of 90 days past due for the commercial portfolio segment and 60 days past due for the consumer portfolio segment. Recorded investment of defaults Quarter ended September 30, Nine months ended September 30, (in thousands) 2017 2016 2017 2016 Total commercial $ — — — 807 Consumer: Real estate 1-4 family first mortgage 1,187 835 2,257 1,759 Real estate 1-4 family junior lien mortgage 60 573 623 885 Total consumer 1,247 1,408 2,880 2,644 Total $ 1,247 1,408 2,880 3,451

Fair Values of Assets and Lia15

Fair Values of Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities, Fair Value, Estimated for Financial Instruments Not Carried at Fair Value	The table below is a summary of fair value estimates by level for financial instruments. The carrying amounts in the following table are recorded in the balance sheet under the indicated captions. We have not included assets and liabilities that are not financial instruments in our disclosure, such as other assets and other liabilities. The total of the fair value calculations presented does not represent, and should not be construed to represent, the underlying value of the Company. Carrying amount Estimated fair value (in thousands) Level 1 Level 2 Level 3 Total September 30, 2017 Financial assets Cash and cash equivalents (1) $ — — — — — Loans, net (2) 32,567,949 — — 33,669,834 33,669,834 Financial liabilities Line of credit with Bank (1) 341,064 — — 341,064 341,064 December 31, 2016 Financial assets Cash and cash equivalents (1) $ 971,349 971,349 — — 971,349 Loans, net (2) 31,186,116 — — 31,732,422 31,732,422 Financial liabilities Line of credit with Bank (1) — — — — — (1) Amounts consist of financial instruments in which carrying value approximates fair value. (2) Carrying amount is net of allowance for loan losses.

Common and Preferred Stock (Tab

Common and Preferred Stock (Tables)	9 Months Ended
	Sep. 30, 2017
Equity [Abstract]
Common and Preferred Stock, Summary of preferred stock and common stock	The following table provides details of our authorized common and preferred stock. September 30, 2017 and December 31, 2016 Liquidation Shares Shares Par value Carrying Preferred stock: Series A 6.375%, Cumulative, Perpetual Series A Preferred Stock $ 25 11,000,000 11,000,000 $ 0.01 110,000 Series B $85 Annual Dividend Per Share, Cumulative, Perpetual Series B Preferred Stock 1,000 1,000 667 0.01 7 Common stock 100,000,000 34,058,028 0.01 340,580 Total 111,001,000 45,058,695 $ 450,587

Transactions with Related Par17

Transactions with Related Parties (Tables)	9 Months Ended
	Sep. 30, 2017
Related Party Transactions [Abstract]
Transactions with Related Parties	The principal items related to transactions with affiliated parties included in the accompanying statement of income and balance sheet are described in the table and narrative below. Quarter ended September 30, Nine months ended September 30, (in thousands) 2017 2016 2017 2016 Income statement data Interest income: Net accretion of adjustments on loans $ 4,130 4,694 10,392 42,538 Interest on deposits 2 4,064 8,498 4,303 Total interest income 4,132 8,758 18,890 46,841 Pledge fees 15,864 8,715 44,338 16,457 Interest expense 3,173 1,272 3,423 2,029 Loan servicing costs 20,614 13,308 58,602 30,848 Management fees 6,384 4,441 19,155 11,843 (in thousands) Sep 30, Dec 31, Balance sheet related data Cash and cash equivalents $ — 971,349 Loan acquisitions (year-to-date) 4,707,964 23,339,146 Proceeds from common stock issuance (year-to-date) — 20,000,050 Loan sales (book value) (year-to-date) (101,285 ) (424,556 ) Pledged loans (carrying value) (1) 17,843,817 20,239,773 Foreclosed asset sales (year-to-date) (9,066 ) (10,915 ) Line of credit with Bank 341,064 — Accounts receivable - affiliates, net 82,372 155,813 (1) The fair value of pledged loans was approximately $18.4 billion and $20.4 billion at September 30, 2017 and December 31, 2016 , respectively.

Summary of Significant Accoun18

Summary of Significant Accounting Policies Significant Accounting Policies Textual (Details) - USD ($) $ in Thousands, shares in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Significant Accounting Policies [Line Items]
Stock Issued During Period, Shares, New Issues					21.2
Proceeds from common stock issuance			$ 0	$ 20,000,050	$ 20,000,000
Sale of Stock, Percentage of Ownership after Transaction			100.00%
Loan acquisitions (year-to-date)	$ 0	$ 21,025,219	$ 4,707,964	$ 23,339,146
Consumer Portfolio Segment [Member]
Significant Accounting Policies [Line Items]
Loan acquisitions (year-to-date)					19,100,000
Commercial Portfolio Segment [Member]
Significant Accounting Policies [Line Items]
Loan acquisitions (year-to-date)					$ 1,900,000

Loans and Allowance for Credi19

Loans and Allowance for Credit Losses, Loans Outstanding (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Deferred Income	$ 10,600	$ (65,500)
Total loans	32,697,065	31,309,993
Total commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	3,514,051	3,984,881
Total consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	29,183,014	27,325,112
Real estate 1-4 family first mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	28,275,795	26,236,047
Real estate 1-4 family junior lien mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 907,219	$ 1,089,065
California, New York, Washington, Virginia and Florida [Member] | Geographic Concentration Risk [Member] | Loans And Leases Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration Risk, Percentage	55.00%

Loans and Allowance for Credi20

Loans and Allowance for Credit Losses, Significant Activity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Loans and Allowance for Credit Losses Significant Activity [Abstract]
Loan acquisitions	$ 0	$ 21,025,219	$ 4,707,964	$ 23,339,146
Loan sales	(43,641)	(198,549)	(100,670)	(203,762)
Total commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unused Commitments to Extend Credit	520,400		520,400		$ 438,000
Loans and Allowance for Credit Losses Significant Activity [Abstract]
Loan acquisitions	0	1,907,228	0	1,907,228
Loan sales	0	0	0	(128)
Total consumer [Member]
Loans and Allowance for Credit Losses Significant Activity [Abstract]
Loan acquisitions	0	19,117,991	4,707,964	21,431,918
Loan sales	$ (43,641)	$ (198,549)	$ (100,670)	$ (203,634)

Loans and Allowance for Credi21

Loans and Allowance for Credit Losses, Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	$ 144,447	$ 118,030	$ 125,029	$ 121,538
Provision (reversal of provision) for credit losses	(11,537)	18,743	14,664	30,174
Interest income on certain impaired loans	(1,331)	(1,604)	(3,939)	(4,384)
Loan charge-offs	(5,619)	(8,714)	(19,397)	(30,036)
Loan recoveries	4,463	5,511	14,066	14,674
Net loan recoveries (charge-offs)	(1,156)	(3,203)	(5,331)	(15,362)
Balance, end of period	130,423	131,966	130,423	131,966
Components:
Allowance for loan losses					$ 129,116	$ 123,877	$ 130,715
Allowance For Unfunded Credit Commitments					1,307		1,251
Allowance for credit losses	$ 144,447	$ 118,030	$ 125,029	$ 121,538	$ 130,423	125,029	$ 131,966
Net loan charge-offs (annualized) as a percentage of average total loans	0.01%	0.06%	0.02%	0.13%
Allowance for loan losses as a percentage of total loans					0.39%		0.39%
Allowance for credit losses as a percentage of total loans					0.40%		0.39%
Total commercial [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	$ 27,375	$ 15,008	$ 29,644	$ 17,676
Provision (reversal of provision) for credit losses	(857)	12,194	(3,144)	9,507
Interest income on certain impaired loans	0	0	0	0
Loan charge-offs	0	0	(11)	(10)
Loan recoveries	59	48	88	77
Net loan recoveries (charge-offs)	59	48	77	67
Balance, end of period	26,577	27,250	26,577	27,250
Components:
Allowance for credit losses	27,375	15,008	29,644	17,676	$ 26,577	29,644	$ 27,250
Total consumer [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	117,072	103,022	95,385	103,862
Provision (reversal of provision) for credit losses	(10,680)	6,549	17,808	20,667
Interest income on certain impaired loans	(1,331)	(1,604)	(3,939)	(4,384)
Loan charge-offs	(5,619)	(8,714)	(19,386)	(30,026)
Loan recoveries	4,404	5,463	13,978	14,597
Net loan recoveries (charge-offs)	(1,215)	(3,251)	(5,408)	(15,429)
Balance, end of period	103,846	104,716	103,846	104,716
Components:
Allowance for credit losses	117,072	103,022	95,385	103,862	103,846	$ 95,385	$ 104,716
Real estate 1-4 family first mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Loan charge-offs	(2,320)	(4,246)	(8,120)	(13,602)
Loan recoveries	2,044	1,820	5,197	4,265
Real estate 1-4 family junior lien mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Loan charge-offs	(3,299)	(4,468)	(11,266)	(16,424)
Loan recoveries	2,360	$ 3,643	8,781	$ 10,332
Hurricane [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, end of period	10,000		10,000
Components:
Allowance for credit losses	$ 10,000		$ 10,000		$ 10,000

Loans and Allowance for Credi22

Loans and Allowance for Credit Losses, Allowance Activity by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	$ 144,447	$ 118,030	$ 125,029	$ 121,538
Provision (reversal of provision) for credit losses	(11,537)	18,743	14,664	30,174
Interest income on certain impaired loans	(1,331)	(1,604)	(3,939)	(4,384)
Loan charge-offs	(5,619)	(8,714)	(19,397)	(30,036)
Loan recoveries	4,463	5,511	14,066	14,674
Net loan recoveries (charge-offs)	(1,156)	(3,203)	(5,331)	(15,362)
Balance, end of period	130,423	131,966	130,423	131,966
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	27,375	15,008	29,644	17,676
Provision (reversal of provision) for credit losses	(857)	12,194	(3,144)	9,507
Interest income on certain impaired loans	0	0	0	0
Loan charge-offs	0	0	(11)	(10)
Loan recoveries	59	48	88	77
Net loan recoveries (charge-offs)	59	48	77	67
Balance, end of period	26,577	27,250	26,577	27,250
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	117,072	103,022	95,385	103,862
Provision (reversal of provision) for credit losses	(10,680)	6,549	17,808	20,667
Interest income on certain impaired loans	(1,331)	(1,604)	(3,939)	(4,384)
Loan charge-offs	(5,619)	(8,714)	(19,386)	(30,026)
Loan recoveries	4,404	5,463	13,978	14,597
Net loan recoveries (charge-offs)	(1,215)	(3,251)	(5,408)	(15,429)
Balance, end of period	$ 103,846	$ 104,716	$ 103,846	$ 104,716

Loans and Allowance for Credi23

Loans and Allowance for Credit Losses, Allowance for Credit Losses by Credit Impairment Methodology (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Allowance for credit losses
Collectively evaluated	$ 71,974		$ 50,450
Individually evaluated	58,449		74,579
Allowance for credit losses	130,423	$ 144,447	125,029	$ 131,966	$ 118,030	$ 121,538
Recorded investment in loans
Collectively evaluated	32,265,897		30,841,183
Individually evaluated	421,174		454,306
Total loans	32,697,065		31,309,993
Commercial Portfolio Segment [Member]
Allowance for credit losses
Collectively evaluated	25,251		28,535
Individually evaluated	1,326		1,109
Allowance for credit losses	26,577	27,375	29,644	27,250	15,008	17,676
Recorded investment in loans
Collectively evaluated	3,510,041		3,980,501
Individually evaluated	4,010		3,236
Total loans	3,514,051		3,984,881
Consumer Portfolio Segment [Member]
Allowance for credit losses
Collectively evaluated	46,723		21,915
Individually evaluated	57,123		73,470
Allowance for credit losses	103,846	$ 117,072	95,385	$ 104,716	$ 103,022	$ 103,862
Recorded investment in loans
Collectively evaluated	28,755,856		26,860,682
Individually evaluated	417,164		451,070
Total loans	29,183,014		27,325,112
Allowance for Doubtful Accounts [Member]
Allowance for credit losses
Allowance for credit losses	0		0
Allowance for Doubtful Accounts [Member] | Commercial Portfolio Segment [Member]
Allowance for credit losses
Allowance for credit losses	0		0
Allowance for Doubtful Accounts [Member] | Consumer Portfolio Segment [Member]
Allowance for credit losses
Allowance for credit losses	0		0
PCI Loans Carrying Value [Member]
Recorded investment in loans
Financing Receivable, Recorded Investment, Current	9,994		14,504
PCI Loans Carrying Value [Member] | Commercial Portfolio Segment [Member]
Recorded investment in loans
Financing Receivable, Recorded Investment, Current	0		1,144
PCI Loans Carrying Value [Member] | Consumer Portfolio Segment [Member]
Recorded investment in loans
Financing Receivable, Recorded Investment, Current	$ 9,994		$ 13,360

Loans and Allowance for Credi24

Loans and Allowance for Credit Losses, Loans by Credit Quality Indicator, Commercial (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Loans and Leases Receivable Disclosure [Abstract]
Total loans	$ 32,697,065	$ 31,309,993
Total commercial [Member]
Loans and Leases Receivable Disclosure [Abstract]
Total loans	3,514,051	3,984,881
Total commercial [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Total loans	3,495,129	3,976,801
Total commercial [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Total loans	$ 18,922	$ 8,080

Loans and Allowance for Credi25

Loans and Allowance for Credit Losses, Loans by Delinquency Status, Commercial (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
By delinquency status:
Total loans	$ 32,697,065	$ 31,309,993
Total commercial [Member]
By delinquency status:
90 days and more past due and still accruing	991	975
Nonaccrual loans	3,325	2,600
Total loans	3,514,051	3,984,881
Current-29 days past due (DPD) and still accruing [Member] | Total commercial [Member]
By delinquency status:
Total loans	3,507,124	3,981,306
30-89 DPD and still accruing [Member] | Total commercial [Member]
By delinquency status:
Total loans	$ 2,611	$ 0

Loans and Allowance for Credi26

Loans and Allowance for Credit Losses, Loans by Delinquency Status, Consumer (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
By delinquency status:
Total loans	$ 32,697,065	$ 31,309,993
Total consumer [Member]
By delinquency status:
Remaining PCI accounting adjustments	(9,964)	(10,902)
Total loans	29,183,014	27,325,112
Real estate 1-4 family first mortgage [Member]
By delinquency status:
Remaining PCI accounting adjustments	(6,401)	(7,480)
Total loans	28,275,795	26,236,047
Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Remaining PCI accounting adjustments	(3,563)	(3,422)
Total loans	907,219	1,089,065
Current-29 DPD [Member] | Total consumer [Member]
By delinquency status:
Total loans	29,004,441	27,129,462
Current-29 DPD [Member] | Real estate 1-4 family first mortgage [Member]
By delinquency status:
Total loans	28,134,223	26,083,077
Current-29 DPD [Member] | Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Total loans	870,218	1,046,385
30-59 DPD [Member] | Total consumer [Member]
By delinquency status:
Total loans	73,072	64,451
30-59 DPD [Member] | Real estate 1-4 family first mortgage [Member]
By delinquency status:
Total loans	57,284	50,197
30-59 DPD [Member] | Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Total loans	15,788	14,254
60-89 DPD [Member] | Total consumer [Member]
By delinquency status:
Total loans	21,129	31,956
60-89 DPD [Member] | Real estate 1-4 family first mortgage [Member]
By delinquency status:
Total loans	15,038	23,740
60-89 DPD [Member] | Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Total loans	6,091	8,216
90-119 DPD [Member] | Total consumer [Member]
By delinquency status:
Total loans	10,404	15,455
90-119 DPD [Member] | Real estate 1-4 family first mortgage [Member]
By delinquency status:
Total loans	6,708	9,962
90-119 DPD [Member] | Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Total loans	3,696	5,493
120-179 DPD [Member] | Total consumer [Member]
By delinquency status:
Total loans	10,034	13,916
120-179 DPD [Member] | Real estate 1-4 family first mortgage [Member]
By delinquency status:
Total loans	6,577	9,945
120-179 DPD [Member] | Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Total loans	3,457	3,971
180 plus DPD [Member] | Total consumer [Member]
By delinquency status:
Total loans	73,898	80,774
180 plus DPD [Member] | Real estate 1-4 family first mortgage [Member]
By delinquency status:
Total loans	62,366	66,606
180 plus DPD [Member] | Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Total loans	$ 11,532	$ 14,168

Loans and Allowance for Credi27

Loans and Allowance for Credit Losses, Loans by FICO Score, Consumer (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
By FICO:
Total loans	$ 32,697,065	$ 31,309,993
Total consumer [Member]
By FICO:
Remaining PCI accounting adjustments	(9,964)	(10,902)
Total loans	29,183,014	27,325,112
Real estate 1-4 family first mortgage [Member]
By FICO:
Remaining PCI accounting adjustments	(6,401)	(7,480)
Total loans	28,275,795	26,236,047
Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Remaining PCI accounting adjustments	(3,563)	(3,422)
Total loans	907,219	1,089,065
FICO less than 600 [Member] | Total consumer [Member]
By FICO:
Total loans	259,301	342,630
FICO less than 600 [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	180,770	227,775
FICO less than 600 [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	78,531	114,855
FICO 600-639 [Member] | Total consumer [Member]
By FICO:
Total loans	184,992	259,949
FICO 600-639 [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	131,637	183,318
FICO 600-639 [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	53,355	76,631
FICO 640-679 [Member] | Total consumer [Member]
By FICO:
Total loans	397,206	622,403
FICO 640-679 [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	304,801	490,005
FICO 640-679 [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	92,405	132,398
FICO 680-719 [Member] | Total consumer [Member]
By FICO:
Total loans	1,111,031	1,481,933
FICO 680-719 [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	949,482	1,283,767
FICO 680-719 [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	161,549	198,166
FICO 720-759 [Member] | Total consumer [Member]
By FICO:
Total loans	2,456,157	3,881,908
FICO 720-759 [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	2,288,097	3,668,121
FICO 720-759 [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	168,060	213,787
FICO 760-799 [Member] | Total consumer [Member]
By FICO:
Total loans	5,528,214	13,156,449
FICO 760-799 [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	5,391,682	12,926,891
FICO 760-799 [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	136,532	229,558
FICO 800 or more [Member] | Total consumer [Member]
By FICO:
Total loans	19,050,720	7,441,150
FICO 800 or more [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	18,847,163	7,328,038
FICO 800 or more [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	203,557	113,112
No FICO available [Member] | Total consumer [Member]
By FICO:
Total loans	205,357	149,592
No FICO available [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	188,564	135,612
No FICO available [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	$ 16,793	$ 13,980

Loans and Allowance for Credi28

Loans and Allowance for Credit Losses, Loans by Loan to Value Ratio, Consumer (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
High Value Properties, Threshold	$ 1,000
By LTV/CLTV:
Total loans	32,697,065	$ 31,309,993
Total consumer [Member]
By LTV/CLTV:
Remaining PCI accounting adjustments	(9,964)	(10,902)
Total loans	29,183,014	27,325,112
Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Remaining PCI accounting adjustments	(6,401)	(7,480)
Total loans	28,275,795	26,236,047
Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Remaining PCI accounting adjustments	(3,563)	(3,422)
Total loans	907,219	1,089,065
LTV 0-60% [Member] | Total consumer [Member]
By LTV/CLTV:
Total loans	15,380,530	12,987,911
LTV 0-60% [Member] | Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Total loans	15,073,059	12,639,979
LTV 0-60% [Member] | Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Total loans	307,471	347,932
LTV 60.01-80% [Member] | Total consumer [Member]
By LTV/CLTV:
Total loans	12,000,123	12,292,223
LTV 60.01-80% [Member] | Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Total loans	11,744,611	11,995,186
LTV 60.01-80% [Member] | Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Total loans	255,512	297,037
LTV 80 to 100 Percent [Member] | Total consumer [Member]
By LTV/CLTV:
Total loans	1,467,050	1,633,978
LTV 80 to 100 Percent [Member] | Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Total loans	1,252,129	1,362,748
LTV 80 to 100 Percent [Member] | Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Total loans	214,921	271,230
LTV 100.01-120% [Member] | Total consumer [Member]
By LTV/CLTV:
Total loans	232,560	280,020
LTV 100.01-120% [Member] | Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Total loans	139,248	155,553
LTV 100.01-120% [Member] | Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Total loans	93,312	124,467
LTV greater than 120% [Member] | Total consumer [Member]
By LTV/CLTV:
Total loans	95,146	120,216
LTV greater than 120% [Member] | Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Total loans	57,030	69,990
LTV greater than 120% [Member] | Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Total loans	38,116	50,226
No LTV/CLTV available [Member] | Total consumer [Member]
By LTV/CLTV:
Total loans	17,569	21,666
No LTV/CLTV available [Member] | Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Total loans	16,119	20,071
No LTV/CLTV available [Member] | Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Total loans	$ 1,450	$ 1,595

Loans and Allowance for Credi29

Loans and Allowance for Credit Losses, Nonaccrual (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Total commercial [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	$ 3,325	$ 2,600
Loans Excluding Certain Loans Acquired In Transfer With Evidence Of Credit Deterioration [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	198,423	216,523
Loans Excluding Certain Loans Acquired In Transfer With Evidence Of Credit Deterioration [Member] | Total commercial [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	3,325	2,600
Loans Excluding Certain Loans Acquired In Transfer With Evidence Of Credit Deterioration [Member] | Total consumer [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	195,098	213,923
Loans Excluding Certain Loans Acquired In Transfer With Evidence Of Credit Deterioration [Member] | Real estate 1-4 family first mortgage [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	152,861	165,117
Loans Excluding Certain Loans Acquired In Transfer With Evidence Of Credit Deterioration [Member] | Real estate 1-4 family junior lien mortgage [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	$ 42,237	$ 48,806

Loans and Allowance for Credi30

Loans and Allowance for Credit Losses, 90 Days Past Due but Still Accruing (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Total commercial [Member]
90 Days Past Due and Still Accruing [Abstract]
90 days and more past due and still accruing	$ 991	$ 975
Loans past due excluding Purchased Credit Impaired Loans [Member]
90 Days Past Due and Still Accruing [Abstract]
90 days and more past due and still accruing	6,174	7,507
Loans past due excluding Purchased Credit Impaired Loans [Member] | Total commercial [Member]
90 Days Past Due and Still Accruing [Abstract]
90 days and more past due and still accruing	991	0
Loans past due excluding Purchased Credit Impaired Loans [Member] | Total consumer [Member]
90 Days Past Due and Still Accruing [Abstract]
90 days and more past due and still accruing	5,183	7,507
Loans past due excluding Purchased Credit Impaired Loans [Member] | Real estate 1-4 family first mortgage [Member]
90 Days Past Due and Still Accruing [Abstract]
90 days and more past due and still accruing	3,685	4,962
Loans past due excluding Purchased Credit Impaired Loans [Member] | Real estate 1-4 family junior lien mortgage [Member]
90 Days Past Due and Still Accruing [Abstract]
90 days and more past due and still accruing	1,498	2,545
Financing Receivable Acquired With Deteriorated Credit Quality [Member]
90 Days Past Due and Still Accruing [Abstract]
90 days and more past due and still accruing	$ 853	$ 2,300

Loans and Allowance for Credi31

Loans and Allowance for Credit Losses, Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Impaired Loans [Abstract]
Unpaid principal balance	$ 495,216	$ 535,404
Impaired Loans, recorded investment	421,174	454,306
Impaired Loans with related allowance for credit losses, recorded investment	300,853	334,648
Related allowance for credit losses	58,449	74,579
Total commercial [Member]
Impaired Loans [Abstract]
Unpaid principal balance	6,029	3,940
Impaired Loans, recorded investment	4,010	3,236
Impaired Loans with related allowance for credit losses, recorded investment	4,010	3,236
Related allowance for credit losses	1,326	1,109
Total consumer [Member]
Impaired Loans [Abstract]
Unpaid principal balance	489,187	531,464
Impaired Loans, recorded investment	417,164	451,070
Impaired Loans with related allowance for credit losses, recorded investment	296,843	331,412
Related allowance for credit losses	57,123	73,470
Real estate 1-4 family first mortgage [Member]
Impaired Loans [Abstract]
Unpaid principal balance	386,290	419,497
Impaired Loans, recorded investment	323,740	349,627
Impaired Loans with related allowance for credit losses, recorded investment	221,407	247,525
Related allowance for credit losses	38,534	49,486
Real estate 1-4 family junior lien mortgage [Member]
Impaired Loans [Abstract]
Unpaid principal balance	102,897	111,967
Impaired Loans, recorded investment	93,424	101,443
Impaired Loans with related allowance for credit losses, recorded investment	75,436	83,887
Related allowance for credit losses	18,589	23,984
Trial modifications [Member]
Impaired Loans [Abstract]
Impaired Loans, recorded investment	$ 8,800	$ 11,800

Loans and Allowance for Credi32

Loans and Allowance for Credit Losses, Impaired Loans, Average Recorded Investment and Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Impaired Loans, Average Recorded Investment [Abstract]
Average recorded investment	$ 427,138	$ 474,886	$ 438,885	$ 487,824
Recognized interest income	7,221	8,118	22,196	24,115
Interest income:
Cash basis of accounting	1,947	2,511	6,262	7,443
Other	5,274	5,607	15,934	16,672
Total commercial [Member]
Impaired Loans, Average Recorded Investment [Abstract]
Average recorded investment	4,030	3,358	3,791	3,828
Recognized interest income	10	11	33	60
Total consumer [Member]
Impaired Loans, Average Recorded Investment [Abstract]
Average recorded investment	423,108	471,528	435,094	483,996
Recognized interest income	7,211	8,107	22,163	24,055
Real estate 1-4 family first mortgage [Member]
Impaired Loans, Average Recorded Investment [Abstract]
Average recorded investment	329,054	363,593	338,040	372,254
Recognized interest income	5,174	5,867	15,927	17,120
Real estate 1-4 family junior lien mortgage [Member]
Impaired Loans, Average Recorded Investment [Abstract]
Average recorded investment	94,054	107,935	97,054	111,742
Recognized interest income	$ 2,037	$ 2,240	$ 6,236	$ 6,935

Loans and Allowance for Credi33

Loans and Allowance for Credit Losses, Troubled Debt Restructurings Modifications by Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Net Amount	$ 32,567,949		$ 32,567,949		$ 31,186,116
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	6,971	$ 13,455	28,775	$ 37,388
Financial effects of modifications
Charge-offs	$ 392	$ 695	$ 1,236	$ 2,775
Weighted average interest rate reduction	3.43%	3.54%	3.63%	3.56%
Total commercial [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 2,106	$ 0	$ 3,954
Financial effects of modifications
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	0.00%	0.00%	0.00%	0.00%
Total consumer [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 6,971	$ 11,349	$ 28,775	$ 33,434
Financial effects of modifications
Charge-offs	$ 392	$ 695	$ 1,236	$ 2,775
Weighted average interest rate reduction	3.43%	3.54%	3.63%	3.56%
Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 5,160	$ 8,453	$ 21,855	$ 27,137
Financial effects of modifications
Charge-offs	$ 29	$ 258	$ 557	$ 1,297
Weighted average interest rate reduction	3.36%	3.48%	3.43%	3.48%
Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 2,763	$ 1,715	$ 7,194	$ 7,430
Financial effects of modifications
Charge-offs	$ 363	$ 437	$ 679	$ 1,478
Weighted average interest rate reduction	3.60%	3.88%	4.29%	3.82%
Trial modifications [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ (952)	$ 1,181	$ (274)	$ (1,133)
Financial effects of modifications
Charge-offs	$ 0	$ 0	$ 0	$ 0
Weighted average interest rate reduction	0.00%	0.00%	0.00%	0.00%
Modification to principal [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 2,088	$ 2,190	$ 9,621	$ 6,708
Modification to principal [Member] | Total commercial [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Modification to principal [Member] | Total consumer [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,088	2,190	9,621	6,708
Modification to principal [Member] | Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,055	2,079	8,499	5,914
Modification to principal [Member] | Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	33	111	1,122	794
Modification to principal [Member] | Trial modifications [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Contractual Interest Rate Reduction [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,227	3,845	8,085	11,511
Contractual Interest Rate Reduction [Member] | Total commercial [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Contractual Interest Rate Reduction [Member] | Total consumer [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,227	3,845	8,085	11,511
Contractual Interest Rate Reduction [Member] | Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	386	3,107	5,481	8,086
Contractual Interest Rate Reduction [Member] | Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	841	738	2,604	3,425
Contractual Interest Rate Reduction [Member] | Trial modifications [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Modifications, other concessions [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	3,656	7,420	11,069	19,169
Modifications, other concessions [Member] | Total commercial [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	2,106	0	3,954
Modifications, other concessions [Member] | Total consumer [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	3,656	5,314	11,069	15,215
Modifications, other concessions [Member] | Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,719	3,267	7,875	13,137
Modifications, other concessions [Member] | Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,889	866	3,468	3,211
Modifications, other concessions [Member] | Trial modifications [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	(952)	1,181	(274)	(1,133)
Modification of recorded investment related to interest rate reduction [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,920	5,958	13,855	16,810
Modification of recorded investment related to interest rate reduction [Member] | Total commercial [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Modification of recorded investment related to interest rate reduction [Member] | Total consumer [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,920	5,958	13,855	16,810
Modification of recorded investment related to interest rate reduction [Member] | Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,078	5,110	10,767	12,798
Modification of recorded investment related to interest rate reduction [Member] | Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	842	848	3,088	4,012
Modification of recorded investment related to interest rate reduction [Member] | Trial modifications [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Troubled debt restructuring balance [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Net Amount	420,200		420,200		$ 454,300
Loans remodified [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,400	2,700	7,400	6,900
Principal Forgiveness [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 135	$ 290	$ 753	$ 1,000

Loans and Allowance for Credi34

Loans and Allowance for Credit Losses, Troubled Debt Restructurings, Current Defaults (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Financing Receivable, Modifications [Line Items]
Recorded investment of defaults	$ 1,247	$ 1,408	$ 2,880	$ 3,451
Total commercial [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment of defaults	0	0	0	807
Total consumer [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment of defaults	1,247	1,408	2,880	2,644
Real estate 1-4 family first mortgage [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment of defaults	1,187	835	2,257	1,759
Real estate 1-4 family junior lien mortgage [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment of defaults	$ 60	$ 573	$ 623	$ 885

Fair Value, Estimates for Finan

Fair Value, Estimates for Financial Instruments Not Carried at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percentage of assets measured on fair value nonrecurring basis (less than 1%)	1.00%	1.00%
Financial assets
Cash and cash equivalents	$ 0	$ 971,349	$ 0	$ 0
Loans, net	32,567,949	31,186,116
Carrying amount [Member]
Financial assets
Cash and cash equivalents	0	971,349
Loans, net	32,567,949	31,186,116
Financial liabilities
Line of credit with Bank	341,064	0
Estimated fair value [Member]
Financial assets
Cash and cash equivalents	0	971,349
Loans, net	33,669,834	31,732,422
Financial liabilities
Line of credit with Bank	341,064	0
Estimated fair value [Member] | Level 1 [Member]
Financial assets
Cash and cash equivalents	0	971,349
Loans, net	0	0
Financial liabilities
Line of credit with Bank	0	0
Estimated fair value [Member] | Level 2 [Member]
Financial assets
Cash and cash equivalents	0	0
Loans, net	0	0
Financial liabilities
Line of credit with Bank	0	0
Estimated fair value [Member] | Level 3 [Member]
Financial assets
Cash and cash equivalents	0	0
Loans, net	33,669,834	31,732,422
Financial liabilities
Line of credit with Bank	$ 341,064	$ 0

Common and Preferred Stock (Det

Common and Preferred Stock (Details) - USD ($)	9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues			21,200,000
Shares authorized	111,001,000		111,001,000
Shares, Issued	45,058,695		45,058,695
Shares, Outstanding	45,058,695		45,058,695
Carrying value	$ 450,587		$ 450,587
Common stock
Shares authorized	100,000,000		100,000,000
Common Stock, Shares, Issued	34,058,028		34,058,028
Par value (in dollars per share)	$ 0.01		$ 0.01
Carrying value	$ 340,580		$ 340,580
Common Stock, Shares, Outstanding	34,058,028		34,058,028
Proceeds from common stock issuance	$ 0	$ 20,000,050,000	$ 20,000,000,000
Sale of Stock, Percentage of Ownership after Transaction	100.00%
Series A Preferred Stock [Member]
Preferred stock:
Dividend rate, percentage	6.375%		6.375%
Liquidation preference per share (in dollars per share)	$ 25		$ 25
Shares authorized	11,000,000		11,000,000
Preferred Stock, Shares Issued	11,000,000		11,000,000
Shares outstanding	11,000,000		11,000,000
Par value per share (in dollars per share)	$ 0.01		$ 0.01
Carrying value	$ 110,000		$ 110,000
Common stock
Certificate Of Designation, Dividend And Debt Restrictive Covenant, Threshold Dividend Coverage Ratio Of Four Prior Fiscal Quarters, Threshold	150.00%
Series B Preferred Stock [Member]
Preferred stock:
Dividend rate (in dollars per share)	$ 85		$ 85
Liquidation preference per share (in dollars per share)	$ 1,000		$ 1,000
Shares authorized	1,000		1,000
Preferred Stock, Shares Issued	667		667
Shares outstanding	667		667
Par value per share (in dollars per share)	$ 0.01		$ 0.01
Carrying value	$ 7		$ 7
Preferred Stock [Member]
Class of Stock [Line Items]
dividend coverage ratio	6837.00%

Transactions with Related Par37

Transactions with Related Parties (Details) - USD ($) $ in Thousands	Oct. 01, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
Interest income:
Net accretion of adjustments on loans				$ 10,392	$ 42,538
Total interest income		$ 332,748	$ 224,690	963,229	554,364
Pledge fees		15,864	8,715	44,338	16,457
Interest expense		3,173	1,272	3,423	2,029
Loan servicing costs		20,614	13,309	58,602	30,855
Management fees		6,384	4,441	19,155	11,843
Balance sheet related data
Cash and Cash Equivalents, at Carrying Value		0	0	0	0	$ 971,349	$ 0
Loan acquisitions (year-to-date)		0	21,025,219	4,707,964	23,339,146
Proceeds from common stock issuance				0	20,000,050	20,000,000
Loan sales (book value) (year-to-date)		(43,641)	(198,549)	(100,670)	(203,762)
Line of credit with Bank		341,064		341,064		0
Accounts receivable - affiliates, net		82,372		82,372		155,813
Related Party [Member]
Related Party Transaction [Line Items]
Financial Instruments, Owned and Pledged as Collateral, at Fair Value		18,400,000		18,400,000		20,400,000
Interest income:
Net accretion of adjustments on loans		4,130	4,694	10,392	42,538
Interest on deposits		2	4,064	8,498	4,303
Total interest income		4,132	8,758	18,890	46,841
Pledge fees		15,864	8,715	44,338	16,457
Interest expense		3,173	1,272	3,423	2,029
Loan servicing costs		20,614	13,308	58,602	30,848
Management fees		6,384	$ 4,441	19,155	$ 11,843
Balance sheet related data
Cash and Cash Equivalents, at Carrying Value		0		0		971,349
Loan acquisitions (year-to-date)				4,707,964		23,339,146
Proceeds from common stock issuance				0		20,000,050
Loan sales (book value) (year-to-date)				(101,285)		(424,556)
Pledged loans (carrying value)		17,843,817		17,843,817		20,239,773
Foreclosed assets sales (year-to-date)				(9,066)		(10,915)
Line of credit with Bank		341,064		341,064		0
Accounts receivable - affiliates, net		$ 82,372		$ 82,372		$ 155,813
Pledged Loans, Collateral Threshold, Percentage Of Total Assets				80.00%
Pledged loan annual basis point rate applied to UPB		0.34%	0.28%	0.34%	0.28%
Revolving Credit Facility [Member] | Related Party [Member]
Balance sheet related data
Line of Credit Facility, Maximum Borrowing Capacity		$ 2,200,000		$ 2,200,000
Federal Funds Effective Swap Rate [Member] | Revolving Credit Facility [Member] | Related Party [Member]
Balance sheet related data
Debt Instrument, Basis Spread on Variable Rate				0.125%
Subsequent Event [Member] | Revolving Credit Facility [Member] | Related Party [Member]
Balance sheet related data
Line of Credit Facility, Maximum Borrowing Capacity	$ 5,000,000
Subsequent Event [Member] | Federal Funds Effective Swap Rate [Member] | Revolving Credit Facility [Member] | Related Party [Member]
Balance sheet related data
Debt Instrument, Basis Spread on Variable Rate	0.044%