Wells Fargo Real Estate Investment (WFE) 10-Q 7 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 30, 2018
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	Mar. 31, 2018
Amendment Flag	false
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
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
	Mar. 31, 2018	Mar. 31, 2017
Interest income	$ 351,664	$ 310,615
Interest expense	14,402	0
Net interest income	337,262	310,615
Provision (reversal of provision) for credit losses	(5,854)	8,083
Net interest income after provision for credit losses	343,116	302,532
Noninterest income
Pledge fees	6,037	13,599
Other fees	221	184
Total noninterest income	6,258	13,783
Noninterest expense
Loan servicing costs	21,922	18,752
Management fees	6,260	6,912
Foreclosed assets	2,053	2,359
Other	107	195
Total noninterest expense	30,342	28,218
Net income	319,032	288,097
Comprehensive income	319,032	288,097
Dividends on preferred stock	4,397	4,397
Net income applicable to common stock	$ 314,635	$ 283,700
Per common share information
Earnings per common share (in dollars per share)	$ 9.24	$ 8.33
Diluted earnings per common share (in dollars per share)	9.24	8.33
Dividends declared per common share (in dollars per share)	$ 9.54	$ 8.51
Average common shares outstanding (in shares)	34,058	34,058
Diluted average common shares outstanding (in shares)	34,058	34,058

Balance Sheet

Balance Sheet - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 0	$ 0
Loans	34,824,594	35,865,176
Allowance for loan losses	(122,863)	(129,360)
Net loans	34,701,731	35,735,816
Accounts receivable - affiliates, net	103,275	113,755
Other assets	93,513	96,028
Total assets	34,898,519	35,945,599
Liabilities
Line of credit with Bank	2,506,674	3,551,426
Other liabilities	11,947	3,910
Total liabilities	2,518,621	3,555,336
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)	(171,213)	(160,848)
Total stockholders’ equity	32,379,898	32,390,263
Total liabilities and stockholders’ equity	$ 34,898,519	$ 35,945,599

Balance Sheet (Parenthetical)

Balance Sheet (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
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, 2016	$ 32,394,184			$ 110	$ 341	$ 32,550,660	$ (156,927)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	288,097						288,097
Cash dividends
Preferred securities		$ (4,383)	$ (14)					$ (4,383)	$ (14)
Common stock	(290,000)						(290,000)
Ending balance at Mar. 31, 2017	32,387,884			110	341	32,550,660	(163,227)
Beginning balance at Dec. 31, 2017	32,390,263			110	341	32,550,660	(160,848)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	319,032						319,032
Cash dividends
Preferred securities		$ (4,383)	$ (14)					$ (4,383)	$ (14)
Common stock	(325,000)						(325,000)
Ending balance at Mar. 31, 2018	$ 32,379,898			$ 110	$ 341	$ 32,550,660	$ (171,213)

Statement of Changes in Stockh6

Statement of Changes in Stockholders' Equity (Parenthetical) (Unaudited) - $ / shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Common stock, dividend per share (in dollars per share)	$ 9.54	$ 8.51
Series A Preferred Stock [Member]
Preferred stock, dividend per share (in dollars per share)	0.40	0.40
Series B Preferred Stock [Member]
Preferred stock, dividend per share (in dollars per share)	$ 21.25	$ 21.25

Statement of Cash Flows (Unaudi

Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net income	$ 319,032	$ 288,097
Adjustments to reconcile net income to net cash provided by operating activities:
Net accretion of adjustments on loans	(4,278)	(3,893)
Provision for credit losses	(5,854)	8,083
Other operating activities, net	18,401	6,375
Net cash provided by operating activities	327,301	298,662
Increase (decrease) in cash realized from Loans:
Acquisitions	0	0
Proceeds from payments and sales	1,042,451	1,131,240
Net cash provided by investing activities	1,042,451	1,131,240
Increase (decrease) in cash realized from
Draws on line of credit with Bank	337,358	0
Repayments of line of credit with Bank	(1,382,110)	0
Cash dividends paid	(325,000)	(294,397)
Net cash used by financing activities	(1,369,752)	(294,397)
Net change in cash and cash equivalents	0	1,135,505
Cash and cash equivalents at beginning of period	0	971,349
Cash and cash equivalents at end of period	0	2,106,854
Change in noncash items:
Transfer from loans to foreclosed assets	$ 2,457	$ 3,441

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2018
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, 2017 ( 2017 Form 10-K). There were no material changes to these policies in first quarter 2018 . 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 2017 Form 10-K. Accounting Standards Adopted in 2018 In first quarter 2018 , we adopted the following new accounting guidance: • Accounting Standards Update (ASU or Update) 2016-15 – Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. • ASU 2014-09 – Revenue from Contracts With Customers (Topic 606) and subsequent related Updates. • ASU 2016-01 - Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities 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. We do not have any of the activities included in the ASU and there is no impact on our financial statements. ASU 2014-09 modifies the guidance used to recognize revenue from contracts with customers for transfers of goods or services and transfers of nonfinancial assets, unless those contracts are within the scope of other guidance. Our revenue is from net interest income on financial assets and pledge fees, which are both excluded from the scope of the guidance. Accordingly, there is no impact on our financial statements. ASU 2016-01 changes the accounting for certain equity securities to record at fair value with unrealized gains or losses reflected in earnings, as well as improve the disclosures of equity securities and the fair value of financial instruments. We do not have equity securities. Accordingly, the impact to our financial statements is limited to our disclosure of the fair value of financial instruments. The valuation methodologies for estimating the fair value of financial instruments that are recorded at amortized cost, including loans, has been changed to conform with an exit price notion. Subsequent Events We have evaluated the effects of events that have occurred subsequent to March 31, 2018 . 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	3 Months Ended
	Mar. 31, 2018
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. Underlying loans are concentrated primarily in California , New York , Washington , Virginia and Texas . These markets include approximately 54% of our total loan balance at March 31, 2018 . The following table presents total loans outstanding by portfolio segment and class of financing receivable. Total reductions and additions for unamortized premiums, discounts and other adjustments were less than 1% of outstanding balances at March 31, 2018 and December 31, 2017 . (in thousands) Mar 31, Dec 31, Total commercial $ 3,128,427 3,325,939 Consumer: Real estate 1-4 family first mortgage 30,887,109 31,683,651 Real estate 1-4 family junior lien mortgage 809,058 855,586 Total consumer 31,696,167 32,539,237 Total loans $ 34,824,594 35,865,176 The following table summarizes the proceeds paid or received from the Bank for acquisitions and sales of loans, respectively. 2018 2017 (in thousands) Commercial Consumer Total Commercial Consumer Total Quarter ended March 31, Loan acquisitions $ — — — — — — Loan sales — (3,641 ) (3,641 ) — (14,195 ) (14,195 ) Commitments to Lend The contract or notional amount of commercial loan commitments to extend credit was $519.0 million at March 31, 2018 and $507.8 million at December 31, 2017 . 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 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 March 31, (in thousands) 2018 2017 Balance, beginning of period $ 130,661 125,029 Provision (reversal of provision) for credit losses (5,854 ) 8,083 Interest income on certain impaired loans (1) (1,247 ) (1,341 ) Loan charge-offs: Total commercial — (11 ) Consumer: Real estate 1-4 family first mortgage (1,092 ) (3,568 ) Real estate 1-4 family junior lien mortgage (2,798 ) (5,248 ) Total consumer (3,890 ) (8,816 ) Total loan charge-offs (3,890 ) (8,827 ) Loan recoveries: Total commercial 15 17 Consumer: Real estate 1-4 family first mortgage 2,184 1,111 Real estate 1-4 family junior lien mortgage 2,197 3,262 Total consumer 4,381 4,373 Total loan recoveries 4,396 4,390 Net loan recoveries (charge-offs) 506 (4,437 ) Balance, end of period $ 124,066 127,334 Components: Allowance for loan losses $ 122,863 126,301 Allowance for unfunded credit commitments 1,203 1,033 Allowance for credit losses $ 124,066 127,334 Net loan (recoveries) charge-offs as a percentage of average total loans (2) (0.01 )% 0.06 Allowance for loan losses as a percentage of total loans 0.35 0.42 Allowance for credit losses as a percentage of total loans 0.36 0.42 (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. (2) Quarterly net charge-offs (recoveries) as a percentage of average total loans are annualized. The following table summarizes the activity in the allowance for credit losses by our commercial and consumer portfolio segments. 2018 2017 (in thousands) Commercial Consumer Total Commercial Consumer Total Quarter ended March 31, Balance, beginning of period $ 28,085 102,576 130,661 29,644 95,385 125,029 Provision (reversal of provision) for credit losses (1,080 ) (4,774 ) (5,854 ) (1,458 ) 9,541 8,083 Interest income on certain impaired loans — (1,247 ) (1,247 ) — (1,341 ) (1,341 ) Loan charge-offs — (3,890 ) (3,890 ) (11 ) (8,816 ) (8,827 ) Loan recoveries 15 4,381 4,396 17 4,373 4,390 Net loan recoveries (charge-offs) 15 491 506 6 (4,443 ) (4,437 ) Balance, end of period $ 27,020 97,046 124,066 28,192 99,142 127,334 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 March 31, 2018 Collectively evaluated (1) $ 25,999 42,144 68,143 3,125,275 31,290,775 34,416,050 Individually evaluated (2) 1,021 54,902 55,923 3,152 397,428 400,580 Purchased credit-impaired (PCI) (3) — — — — 7,964 7,964 Total $ 27,020 97,046 124,066 3,128,427 31,696,167 34,824,594 December 31, 2017 Collectively evaluated (1) $ 27,192 46,664 73,856 3,322,947 32,123,483 35,446,430 Individually evaluated (2) 893 55,912 56,805 2,992 406,736 409,728 PCI (3) — — — — 9,018 9,018 Total $ 28,085 102,576 130,661 3,325,939 32,539,237 35,865,176 (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 December 31, 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 March 31, 2018 By risk category: Pass $ 3,117,199 Criticized 11,228 Total commercial loans $ 3,128,427 December 31, 2017 By risk category: Pass $ 3,316,604 Criticized 9,335 Total commercial loans $ 3,325,939 The following table provides past due information for commercial loans, which we monitor as part of our credit risk management practices. (in thousands) Total March 31, 2018 By delinquency status: Current-29 days past due (DPD) and still accruing $ 3,104,883 30-89 DPD and still accruing 18,171 90+ DPD and still accruing 2,854 Nonaccrual loans 2,519 Total commercial loans $ 3,128,427 December 31, 2017 By delinquency status: Current-29 DPD and still accruing $ 3,320,666 30-89 DPD and still accruing 1,977 90+ DPD and still accruing 990 Nonaccrual loans 2,306 Total commercial loans $ 3,325,939 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 March 31, 2018 By delinquency status: Current-29 DPD $ 30,753,549 771,267 31,524,816 30-59 DPD 50,366 12,875 63,241 60-89 DPD 16,109 9,766 25,875 90-119 DPD 7,981 3,800 11,781 120-179 DPD 14,928 3,945 18,873 180+ DPD 50,036 10,689 60,725 Remaining PCI accounting adjustments (5,860 ) (3,284 ) (9,144 ) Total consumer loans $ 30,887,109 809,058 31,696,167 December 31, 2017 By delinquency status: Current-29 DPD $ 31,529,774 819,000 32,348,774 30-59 DPD 63,591 13,663 77,254 60-89 DPD 20,770 6,245 27,015 90-119 DPD 15,384 5,462 20,846 120-179 DPD 9,235 3,648 12,883 180+ DPD 50,323 10,917 61,240 Remaining PCI accounting adjustments (5,426 ) (3,349 ) (8,775 ) Total consumer loans $ 31,683,651 855,586 32,539,237 The following table provides a breakdown of our consumer portfolio by FICO. 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 March 31, 2018 By FICO: < 600 $ 167,599 65,440 233,039 600-639 129,159 52,326 181,485 640-679 317,657 81,774 399,431 680-719 928,622 145,054 1,073,676 720-759 2,417,533 149,388 2,566,921 760-799 5,551,568 122,598 5,674,166 800+ 21,203,047 180,401 21,383,448 No FICO available 177,784 15,361 193,145 Remaining PCI accounting adjustments (5,860 ) (3,284 ) (9,144 ) Total consumer loans $ 30,887,109 809,058 31,696,167 December 31, 2017 By FICO: < 600 $ 179,829 74,644 254,473 600-639 138,782 50,676 189,458 640-679 307,999 88,948 396,947 680-719 988,162 150,180 1,138,342 720-759 2,556,013 159,309 2,715,322 760-799 5,957,929 126,785 6,084,714 800+ 21,359,614 191,851 21,551,465 No FICO available 200,749 16,542 217,291 Remaining PCI accounting adjustments (5,426 ) (3,349 ) (8,775 ) Total consumer loans $ 31,683,651 855,586 32,539,237 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 March 31, 2018 By LTV/CLTV: 0-60% $ 17,571,140 290,998 17,862,138 60.01-80% 12,035,580 235,740 12,271,320 80.01-100% 1,087,623 181,876 1,269,499 100.01-120% (1) 125,785 73,861 199,646 > 120% (1) 58,363 27,858 86,221 No LTV/CLTV available 14,478 2,009 16,487 Remaining PCI accounting adjustments (5,860 ) (3,284 ) (9,144 ) Total consumer loans $ 30,887,109 809,058 31,696,167 December 31, 2017 By LTV/CLTV: 0-60% $ 17,500,078 307,358 17,807,436 60.01-80% 12,827,337 240,888 13,068,225 80.01-100% 1,153,304 196,456 1,349,760 100.01-120% (1) 129,637 80,636 210,273 > 120% (1) 64,239 32,224 96,463 No LTV/CLTV available 14,482 1,373 15,855 Remaining PCI accounting adjustments (5,426 ) (3,349 ) (8,775 ) Total consumer loans $ 31,683,651 855,586 32,539,237 (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 due to the existence of the accretable yield, independent of performance in accordance with their contractual terms. (in thousands) Mar 31, Dec 31, Total commercial $ 2,519 2,306 Consumer: Real estate 1-4 family first mortgage 152,510 150,381 Real estate 1-4 family junior lien mortgage 42,161 44,703 Total consumer 194,671 195,084 Total nonaccrual loans (excluding PCI) $ 197,190 197,390 LOANS IN PROCESS OF FORECLOSURE Our recorded investment in consumer mortgage loans collateralized by residential real estate property that are in process of foreclosure was $36.8 million and $41.7 million at March 31, 2018 and December 31, 2017 , and none of these loans are government insured/guaranteed. We commence the foreclosure process on consumer real estate loans when a borrower becomes 120 days delinquent in accordance with Consumer Finance Protection Bureau Guidelines. Foreclosure procedures and timelines vary depending on whether the property address resides in a judicial or non-judicial state. Judicial states require the foreclosure to be processed through the state’s courts while non-judicial states are processed without court intervention. Foreclosure timelines vary according to state law. 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 $529 thousand at March 31, 2018 , and $699 thousand at December 31, 2017 , 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) Mar 31, 2018 Dec 31, 2017 Total commercial $ 2,854 990 Consumer: Real estate 1-4 family first mortgage 3,999 9,001 Real estate 1-4 family junior lien mortgage 1,419 2,914 Total consumer 5,418 11,915 Total past due (excluding PCI) $ 8,272 12,905 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 $5.6 million at March 31, 2018 and $7.5 million at December 31, 2017 . Recorded investment (in thousands) Unpaid principal balance Impaired loans Impaired loans with related allowance for credit losses Related allowance for credit losses March 31, 2018 Total commercial $ 4,146 3,152 3,152 1,021 Consumer: Real estate 1-4 family first mortgage 369,250 309,207 208,525 37,274 Real estate 1-4 family junior lien mortgage 97,941 88,221 70,542 17,628 Total consumer 467,191 397,428 279,067 54,902 Total impaired loans (excluding PCI) $ 471,337 400,580 282,219 55,923 December 31, 2017 Total commercial $ 3,714 2,992 2,992 893 Consumer: Real estate 1-4 family first mortgage 377,877 315,529 215,109 37,090 Real estate 1-4 family junior lien mortgage 100,228 91,207 73,261 18,822 Total consumer 478,105 406,736 288,370 55,912 Total impaired loans (excluding PCI) $ 481,819 409,728 291,362 56,805 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 March 31, 2018 2017 (in thousands) Average Recognized interest income Average recorded investment Recognized interest income Total commercial $ 3,021 12 3,244 12 Consumer: Real estate 1-4 family first mortgage 313,170 4,960 346,133 5,406 Real estate 1-4 family junior lien mortgage 89,630 1,948 100,044 2,149 Total consumer 402,800 6,908 446,177 7,555 Total impaired loans $ 405,821 6,920 449,421 7,567 Interest income: Cash basis of accounting $ 1,897 2,158 Other (1) 5,023 5,409 Total interest income $ 6,920 7,567 (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 $400.6 million and $409.7 million at March 31, 2018 and December 31, 2017 , 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 modify more than once, the 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 March 31, 2018 Total commercial $ — — 2,067 2,067 — — % $ — Consumer: Real estate 1-4 family first mortgage 2,049 — 5,602 7,651 76 2.13 1,100 Real estate 1-4 family junior lien mortgage 44 82 1,977 2,103 11 2.28 82 Trial modifications (6) — — (1,589 ) (1,589 ) — — — Total consumer 2,093 82 5,990 8,165 87 2.14 1,182 Total $ 2,093 82 8,057 10,232 87 2.14 % $ 1,182 Quarter ended March 31, 2017 Total commercial $ — — — — — — % $ — Consumer: Real estate 1-4 family first mortgage 4,105 2,884 2,987 9,976 441 3.34 4,791 Real estate 1-4 family junior lien mortgage 626 1,207 1,039 2,872 181 4.98 1,376 Trial modifications (6) — — (1,193 ) (1,193 ) — — — Total consumer 4,731 4,091 2,833 11,655 622 3.70 6,167 Total $ 4,731 4,091 2,833 11,655 622 3.70 % $ 6,167 (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 $4.2 million and $3.2 million for the quarters ended March 31, 2018 and 2017 , 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 $112 thousand and $396 thousand for the quarters ended March 31, 2018 and 2017 , 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 March 31, (in thousands) 2018 2017 Total commercial $ — — Consumer: Real estate 1-4 family first mortgage 730 419 Real estate 1-4 family junior lien mortgage 55 57 Total consumer 785 476 Total $ 785 476

Fair Values of Assets and Liabi

Fair Values of Assets and Liabilities	3 Months Ended
	Mar. 31, 2018
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 March 31, 2018 and December 31, 2017 , 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 2017 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. In connection with the adoption of ASU 2016-01 in first quarter 2018, the valuation methodologies for estimating the fair value of financial instruments that are recorded at amortized cost, including loans, has been changed, where necessary, to conform with an exit price notion. Under an exit price notion, fair value estimates are based upon the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the balance sheet date. For certain loans the estimated fair values prior to adoption of ASU 2016-01 followed an entrance price notion that based fair values on recent prices offered to customers for loans with similar characteristics. 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 March 31, 2018 Financial assets Cash and cash equivalents (1) $ — — — — — Loans, net (2) 34,701,731 — — 34,709,411 34,709,411 Financial liabilities Line of credit with Bank (1) 2,506,674 — — 2,506,674 2,506,674 December 31, 2017 Financial assets Cash and cash equivalents (1) $ — — — — — Loans, net (2) 35,735,816 — — 36,407,260 36,407,260 Financial liabilities Line of credit with Bank (1) 3,551,426 — — 3,551,426 3,551,426 (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	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Common and Preferred Stock	Note 4: Common and Preferred Stock The following table provides details of our authorized common and preferred stock. March 31, 2018 and December 31, 2017 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 2017 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 March 31, 2018 , the dividend coverage ratio was 7,105% .

Transactions With Related Parti

Transactions With Related Parties	3 Months Ended
	Mar. 31, 2018
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 March 31, (in thousands) 2018 2017 Income statement data Interest income: Net accretion of adjustments on loans 4,278 3,893 Interest on deposits — 2,780 Total interest income 4,278 6,673 Pledge fees 6,037 13,599 Interest expense 14,402 — Loan servicing costs 21,922 18,752 Management fees 6,260 6,912 (in thousands) Mar 31, Dec 31, Balance sheet related data Cash and cash equivalents $ — — Loan acquisitions (year-to-date) — 9,162,579 Loan sales (book value) (year-to-date) (3,609 ) (121,210 ) Pledged loans (carrying value) (1) — 24,323,830 Foreclosed asset sales (year-to-date) (2,576 ) (11,495 ) Line of credit with Bank 2,506,674 3,551,426 Accounts receivable - affiliates, net 103,275 113,755 (1) There were no pledged loans at March 31, 2018 . The fair value of pledged loans was approximately $24.8 billion at December 31, 2017 . 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 pays us a fee that is consistent with market terms. At March 31, 2018 and March 31, 2017 , the fee was equal to an annual rate of 15 basis points ( 0.15% ) and 34 basis points ( 0.34% ), 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, pursuant to which we can borrow up to $5.0 billion at a rate of interest equal 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)	3 Months Ended
	Mar. 31, 2018
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, 2017 ( 2017 Form 10-K). There were no material changes to these policies in first quarter 2018 . 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 2017 Form 10-K.
Accounting Standards with Retrospective Application [Policy Text Block]	Accounting Standards Adopted in 2018 In first quarter 2018 , we adopted the following new accounting guidance: • Accounting Standards Update (ASU or Update) 2016-15 – Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. • ASU 2014-09 – Revenue from Contracts With Customers (Topic 606) and subsequent related Updates. • ASU 2016-01 - Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities
Subsequent Events	Subsequent Events We have evaluated the effects of events that have occurred subsequent to March 31, 2018 . 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. We do not have any of the activities included in the ASU and there is no impact on our financial statements. ASU 2014-09 modifies the guidance used to recognize revenue from contracts with customers for transfers of goods or services and transfers of nonfinancial assets, unless those contracts are within the scope of other guidance. Our revenue is from net interest income on financial assets and pledge fees, which are both excluded from the scope of the guidance. Accordingly, there is no impact on our financial statements. ASU 2016-01 changes the accounting for certain equity securities to record at fair value with unrealized gains or losses reflected in earnings, as well as improve the disclosures of equity securities and the fair value of financial instruments. We do not have equity securities. Accordingly, the impact to our financial statements is limited to our disclosure of the fair value of financial instruments. The valuation methodologies for estimating the fair value of financial instruments that are recorded at amortized cost, including loans, has been changed to conform with an exit price notion.

Loans and Allowance for Credi14

Loans and Allowance for Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2018
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. Total reductions and additions for unamortized premiums, discounts and other adjustments were less than 1% of outstanding balances at March 31, 2018 and December 31, 2017 . (in thousands) Mar 31, Dec 31, Total commercial $ 3,128,427 3,325,939 Consumer: Real estate 1-4 family first mortgage 30,887,109 31,683,651 Real estate 1-4 family junior lien mortgage 809,058 855,586 Total consumer 31,696,167 32,539,237 Total loans $ 34,824,594 35,865,176
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. 2018 2017 (in thousands) Commercial Consumer Total Commercial Consumer Total Quarter ended March 31, Loan acquisitions $ — — — — — — Loan sales — (3,641 ) (3,641 ) — (14,195 ) (14,195 )
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 March 31, (in thousands) 2018 2017 Balance, beginning of period $ 130,661 125,029 Provision (reversal of provision) for credit losses (5,854 ) 8,083 Interest income on certain impaired loans (1) (1,247 ) (1,341 ) Loan charge-offs: Total commercial — (11 ) Consumer: Real estate 1-4 family first mortgage (1,092 ) (3,568 ) Real estate 1-4 family junior lien mortgage (2,798 ) (5,248 ) Total consumer (3,890 ) (8,816 ) Total loan charge-offs (3,890 ) (8,827 ) Loan recoveries: Total commercial 15 17 Consumer: Real estate 1-4 family first mortgage 2,184 1,111 Real estate 1-4 family junior lien mortgage 2,197 3,262 Total consumer 4,381 4,373 Total loan recoveries 4,396 4,390 Net loan recoveries (charge-offs) 506 (4,437 ) Balance, end of period $ 124,066 127,334 Components: Allowance for loan losses $ 122,863 126,301 Allowance for unfunded credit commitments 1,203 1,033 Allowance for credit losses $ 124,066 127,334 Net loan (recoveries) charge-offs as a percentage of average total loans (2) (0.01 )% 0.06 Allowance for loan losses as a percentage of total loans 0.35 0.42 Allowance for credit losses as a percentage of total loans 0.36 0.42 (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. (2) Quarterly net charge-offs (recoveries) as a percentage of average total loans are annualized.
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. 2018 2017 (in thousands) Commercial Consumer Total Commercial Consumer Total Quarter ended March 31, Balance, beginning of period $ 28,085 102,576 130,661 29,644 95,385 125,029 Provision (reversal of provision) for credit losses (1,080 ) (4,774 ) (5,854 ) (1,458 ) 9,541 8,083 Interest income on certain impaired loans — (1,247 ) (1,247 ) — (1,341 ) (1,341 ) Loan charge-offs — (3,890 ) (3,890 ) (11 ) (8,816 ) (8,827 ) Loan recoveries 15 4,381 4,396 17 4,373 4,390 Net loan recoveries (charge-offs) 15 491 506 6 (4,443 ) (4,437 ) Balance, end of period $ 27,020 97,046 124,066 28,192 99,142 127,334
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 March 31, 2018 Collectively evaluated (1) $ 25,999 42,144 68,143 3,125,275 31,290,775 34,416,050 Individually evaluated (2) 1,021 54,902 55,923 3,152 397,428 400,580 Purchased credit-impaired (PCI) (3) — — — — 7,964 7,964 Total $ 27,020 97,046 124,066 3,128,427 31,696,167 34,824,594 December 31, 2017 Collectively evaluated (1) $ 27,192 46,664 73,856 3,322,947 32,123,483 35,446,430 Individually evaluated (2) 893 55,912 56,805 2,992 406,736 409,728 PCI (3) — — — — 9,018 9,018 Total $ 28,085 102,576 130,661 3,325,939 32,539,237 35,865,176 (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 March 31, 2018 By risk category: Pass $ 3,117,199 Criticized 11,228 Total commercial loans $ 3,128,427 December 31, 2017 By risk category: Pass $ 3,316,604 Criticized 9,335 Total commercial loans $ 3,325,939
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 March 31, 2018 By delinquency status: Current-29 days past due (DPD) and still accruing $ 3,104,883 30-89 DPD and still accruing 18,171 90+ DPD and still accruing 2,854 Nonaccrual loans 2,519 Total commercial loans $ 3,128,427 December 31, 2017 By delinquency status: Current-29 DPD and still accruing $ 3,320,666 30-89 DPD and still accruing 1,977 90+ DPD and still accruing 990 Nonaccrual loans 2,306 Total commercial loans $ 3,325,939
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 March 31, 2018 By delinquency status: Current-29 DPD $ 30,753,549 771,267 31,524,816 30-59 DPD 50,366 12,875 63,241 60-89 DPD 16,109 9,766 25,875 90-119 DPD 7,981 3,800 11,781 120-179 DPD 14,928 3,945 18,873 180+ DPD 50,036 10,689 60,725 Remaining PCI accounting adjustments (5,860 ) (3,284 ) (9,144 ) Total consumer loans $ 30,887,109 809,058 31,696,167 December 31, 2017 By delinquency status: Current-29 DPD $ 31,529,774 819,000 32,348,774 30-59 DPD 63,591 13,663 77,254 60-89 DPD 20,770 6,245 27,015 90-119 DPD 15,384 5,462 20,846 120-179 DPD 9,235 3,648 12,883 180+ DPD 50,323 10,917 61,240 Remaining PCI accounting adjustments (5,426 ) (3,349 ) (8,775 ) Total consumer loans $ 31,683,651 855,586 32,539,237
Loans and allowance for Credit Losses, Loans by FICO Score, Consumer	The following table provides a breakdown of our consumer portfolio by FICO. 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 March 31, 2018 By FICO: < 600 $ 167,599 65,440 233,039 600-639 129,159 52,326 181,485 640-679 317,657 81,774 399,431 680-719 928,622 145,054 1,073,676 720-759 2,417,533 149,388 2,566,921 760-799 5,551,568 122,598 5,674,166 800+ 21,203,047 180,401 21,383,448 No FICO available 177,784 15,361 193,145 Remaining PCI accounting adjustments (5,860 ) (3,284 ) (9,144 ) Total consumer loans $ 30,887,109 809,058 31,696,167 December 31, 2017 By FICO: < 600 $ 179,829 74,644 254,473 600-639 138,782 50,676 189,458 640-679 307,999 88,948 396,947 680-719 988,162 150,180 1,138,342 720-759 2,556,013 159,309 2,715,322 760-799 5,957,929 126,785 6,084,714 800+ 21,359,614 191,851 21,551,465 No FICO available 200,749 16,542 217,291 Remaining PCI accounting adjustments (5,426 ) (3,349 ) (8,775 ) Total consumer loans $ 31,683,651 855,586 32,539,237
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 March 31, 2018 By LTV/CLTV: 0-60% $ 17,571,140 290,998 17,862,138 60.01-80% 12,035,580 235,740 12,271,320 80.01-100% 1,087,623 181,876 1,269,499 100.01-120% (1) 125,785 73,861 199,646 > 120% (1) 58,363 27,858 86,221 No LTV/CLTV available 14,478 2,009 16,487 Remaining PCI accounting adjustments (5,860 ) (3,284 ) (9,144 ) Total consumer loans $ 30,887,109 809,058 31,696,167 December 31, 2017 By LTV/CLTV: 0-60% $ 17,500,078 307,358 17,807,436 60.01-80% 12,827,337 240,888 13,068,225 80.01-100% 1,153,304 196,456 1,349,760 100.01-120% (1) 129,637 80,636 210,273 > 120% (1) 64,239 32,224 96,463 No LTV/CLTV available 14,482 1,373 15,855 Remaining PCI accounting adjustments (5,426 ) (3,349 ) (8,775 ) Total consumer loans $ 31,683,651 855,586 32,539,237 (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 due to the existence of the accretable yield, independent of performance in accordance with their contractual terms. (in thousands) Mar 31, Dec 31, Total commercial $ 2,519 2,306 Consumer: Real estate 1-4 family first mortgage 152,510 150,381 Real estate 1-4 family junior lien mortgage 42,161 44,703 Total consumer 194,671 195,084 Total nonaccrual loans (excluding PCI) $ 197,190 197,390
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) Mar 31, 2018 Dec 31, 2017 Total commercial $ 2,854 990 Consumer: Real estate 1-4 family first mortgage 3,999 9,001 Real estate 1-4 family junior lien mortgage 1,419 2,914 Total consumer 5,418 11,915 Total past due (excluding PCI) $ 8,272 12,905
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 $5.6 million at March 31, 2018 and $7.5 million at December 31, 2017 . Recorded investment (in thousands) Unpaid principal balance Impaired loans Impaired loans with related allowance for credit losses Related allowance for credit losses March 31, 2018 Total commercial $ 4,146 3,152 3,152 1,021 Consumer: Real estate 1-4 family first mortgage 369,250 309,207 208,525 37,274 Real estate 1-4 family junior lien mortgage 97,941 88,221 70,542 17,628 Total consumer 467,191 397,428 279,067 54,902 Total impaired loans (excluding PCI) $ 471,337 400,580 282,219 55,923 December 31, 2017 Total commercial $ 3,714 2,992 2,992 893 Consumer: Real estate 1-4 family first mortgage 377,877 315,529 215,109 37,090 Real estate 1-4 family junior lien mortgage 100,228 91,207 73,261 18,822 Total consumer 478,105 406,736 288,370 55,912 Total impaired loans (excluding PCI) $ 481,819 409,728 291,362 56,805
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 March 31, 2018 2017 (in thousands) Average Recognized interest income Average recorded investment Recognized interest income Total commercial $ 3,021 12 3,244 12 Consumer: Real estate 1-4 family first mortgage 313,170 4,960 346,133 5,406 Real estate 1-4 family junior lien mortgage 89,630 1,948 100,044 2,149 Total consumer 402,800 6,908 446,177 7,555 Total impaired loans $ 405,821 6,920 449,421 7,567 Interest income: Cash basis of accounting $ 1,897 2,158 Other (1) 5,023 5,409 Total interest income $ 6,920 7,567 (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 modify more than once, the 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 March 31, 2018 Total commercial $ — — 2,067 2,067 — — % $ — Consumer: Real estate 1-4 family first mortgage 2,049 — 5,602 7,651 76 2.13 1,100 Real estate 1-4 family junior lien mortgage 44 82 1,977 2,103 11 2.28 82 Trial modifications (6) — — (1,589 ) (1,589 ) — — — Total consumer 2,093 82 5,990 8,165 87 2.14 1,182 Total $ 2,093 82 8,057 10,232 87 2.14 % $ 1,182 Quarter ended March 31, 2017 Total commercial $ — — — — — — % $ — Consumer: Real estate 1-4 family first mortgage 4,105 2,884 2,987 9,976 441 3.34 4,791 Real estate 1-4 family junior lien mortgage 626 1,207 1,039 2,872 181 4.98 1,376 Trial modifications (6) — — (1,193 ) (1,193 ) — — — Total consumer 4,731 4,091 2,833 11,655 622 3.70 6,167 Total $ 4,731 4,091 2,833 11,655 622 3.70 % $ 6,167 (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 $4.2 million and $3.2 million for the quarters ended March 31, 2018 and 2017 , 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 $112 thousand and $396 thousand for the quarters ended March 31, 2018 and 2017 , 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 March 31, (in thousands) 2018 2017 Total commercial $ — — Consumer: Real estate 1-4 family first mortgage 730 419 Real estate 1-4 family junior lien mortgage 55 57 Total consumer 785 476 Total $ 785 476

Fair Values of Assets and Lia15

Fair Values of Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2018
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. In connection with the adoption of ASU 2016-01 in first quarter 2018, the valuation methodologies for estimating the fair value of financial instruments that are recorded at amortized cost, including loans, has been changed, where necessary, to conform with an exit price notion. Under an exit price notion, fair value estimates are based upon the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the balance sheet date. For certain loans the estimated fair values prior to adoption of ASU 2016-01 followed an entrance price notion that based fair values on recent prices offered to customers for loans with similar characteristics. 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 March 31, 2018 Financial assets Cash and cash equivalents (1) $ — — — — — Loans, net (2) 34,701,731 — — 34,709,411 34,709,411 Financial liabilities Line of credit with Bank (1) 2,506,674 — — 2,506,674 2,506,674 December 31, 2017 Financial assets Cash and cash equivalents (1) $ — — — — — Loans, net (2) 35,735,816 — — 36,407,260 36,407,260 Financial liabilities Line of credit with Bank (1) 3,551,426 — — 3,551,426 3,551,426 (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)	3 Months Ended
	Mar. 31, 2018
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. March 31, 2018 and December 31, 2017 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)	3 Months Ended
	Mar. 31, 2018
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 March 31, (in thousands) 2018 2017 Income statement data Interest income: Net accretion of adjustments on loans 4,278 3,893 Interest on deposits — 2,780 Total interest income 4,278 6,673 Pledge fees 6,037 13,599 Interest expense 14,402 — Loan servicing costs 21,922 18,752 Management fees 6,260 6,912 (in thousands) Mar 31, Dec 31, Balance sheet related data Cash and cash equivalents $ — — Loan acquisitions (year-to-date) — 9,162,579 Loan sales (book value) (year-to-date) (3,609 ) (121,210 ) Pledged loans (carrying value) (1) — 24,323,830 Foreclosed asset sales (year-to-date) (2,576 ) (11,495 ) Line of credit with Bank 2,506,674 3,551,426 Accounts receivable - affiliates, net 103,275 113,755 (1) There were no pledged loans at March 31, 2018 . The fair value of pledged loans was approximately $24.8 billion at December 31, 2017 .

Loans and Allowance for Credi18

Loans and Allowance for Credit Losses, Loans Outstanding (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
deferred income as a percent of loans less than	1.00%	1.00%
Total loans	$ 34,824,594	$ 35,865,176
Total commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	3,128,427	3,325,939
Total consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	31,696,167	32,539,237
Real estate 1-4 family first mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	30,887,109	31,683,651
Real estate 1-4 family junior lien mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 809,058	$ 855,586
California, New York, Washington, Virginia and Texas [Member] | Geographic Concentration Risk [Member] | Loans And Leases Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration Risk, Percentage	54.00%

Loans and Allowance for Credi19

Loans and Allowance for Credit Losses, Significant Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Loans and Allowance for Credit Losses Significant Activity [Abstract]
Loan acquisitions	$ 0	$ 0
Loan sales	(3,641)	(14,195)
Total commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unused Commitments to Extend Credit	519,000		$ 507,800
Loans and Allowance for Credit Losses Significant Activity [Abstract]
Loan acquisitions	0	0
Loan sales	0	0
Total consumer [Member]
Loans and Allowance for Credit Losses Significant Activity [Abstract]
Loan acquisitions	0	0
Loan sales	$ (3,641)	$ (14,195)

Loans and Allowance for Credi20

Loans and Allowance for Credit Losses, Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	$ 130,661	$ 125,029
Provision (reversal of provision) for credit losses	(5,854)	8,083
Interest income on certain impaired loans	(1,247)	(1,341)
Loan charge-offs	(3,890)	(8,827)
Loan recoveries	4,396	4,390
Net loan recoveries (charge-offs)	506	(4,437)
Balance, end of period	124,066	127,334
Components:
Allowance for loan losses			$ 122,863	$ 129,360	$ 126,301
Allowance For Unfunded Credit Commitments			1,203		1,033
Allowance for credit losses	$ 130,661	$ 125,029	$ 124,066	130,661	$ 127,334
Net loan (recoveries) charge-offs as a percentage of average total loans (2)	(0.01%)	0.06%
Allowance for loan losses as a percentage of total loans			0.35%		0.42%
Allowance for credit losses as a percentage of total loans			0.36%		0.42%
Total commercial [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	$ 28,085	$ 29,644
Provision (reversal of provision) for credit losses	(1,080)	(1,458)
Interest income on certain impaired loans	0	0
Loan charge-offs	0	(11)
Loan recoveries	15	17
Net loan recoveries (charge-offs)	15	6
Balance, end of period	27,020	28,192
Components:
Allowance for credit losses	28,085	29,644	$ 27,020	28,085	$ 28,192
Total consumer [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	102,576	95,385
Provision (reversal of provision) for credit losses	(4,774)	9,541
Interest income on certain impaired loans	(1,247)	(1,341)
Loan charge-offs	(3,890)	(8,816)
Loan recoveries	4,381	4,373
Net loan recoveries (charge-offs)	491	(4,443)
Balance, end of period	97,046	99,142
Components:
Allowance for credit losses	102,576	95,385	$ 97,046	$ 102,576	$ 99,142
Real estate 1-4 family first mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Loan charge-offs	(1,092)	(3,568)
Loan recoveries	2,184	1,111
Real estate 1-4 family junior lien mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Loan charge-offs	(2,798)	(5,248)
Loan recoveries	$ 2,197	$ 3,262

Loans and Allowance for Credi21

Loans and Allowance for Credit Losses, Allowance Activity by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	$ 130,661	$ 125,029
Provision (reversal of provision) for credit losses	(5,854)	8,083
Interest income on certain impaired loans	(1,247)	(1,341)
Loan charge-offs	(3,890)	(8,827)
Loan recoveries	4,396	4,390
Net loan recoveries (charge-offs)	506	(4,437)
Balance, end of period	124,066	127,334
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	28,085	29,644
Provision (reversal of provision) for credit losses	(1,080)	(1,458)
Interest income on certain impaired loans	0	0
Loan charge-offs	0	(11)
Loan recoveries	15	17
Net loan recoveries (charge-offs)	15	6
Balance, end of period	27,020	28,192
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	102,576	95,385
Provision (reversal of provision) for credit losses	(4,774)	9,541
Interest income on certain impaired loans	(1,247)	(1,341)
Loan charge-offs	(3,890)	(8,816)
Loan recoveries	4,381	4,373
Net loan recoveries (charge-offs)	491	(4,443)
Balance, end of period	$ 97,046	$ 99,142

Loans and Allowance for Credi22

Loans and Allowance for Credit Losses, Allowance for Credit Losses by Credit Impairment Methodology (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Allowance for credit losses
Collectively evaluated	$ 68,143	$ 73,856
Individually evaluated	55,923	56,805
Allowance for credit losses	124,066	130,661	$ 127,334	$ 125,029
Recorded investment in loans
Collectively evaluated	34,416,050	35,446,430
Individually evaluated	400,580	409,728
Total loans	34,824,594	35,865,176
Commercial Portfolio Segment [Member]
Allowance for credit losses
Collectively evaluated	25,999	27,192
Individually evaluated	1,021	893
Allowance for credit losses	27,020	28,085	28,192	29,644
Recorded investment in loans
Collectively evaluated	3,125,275	3,322,947
Individually evaluated	3,152	2,992
Total loans	3,128,427	3,325,939
Consumer Portfolio Segment [Member]
Allowance for credit losses
Collectively evaluated	42,144	46,664
Individually evaluated	54,902	55,912
Allowance for credit losses	97,046	102,576	$ 99,142	$ 95,385
Recorded investment in loans
Collectively evaluated	31,290,775	32,123,483
Individually evaluated	397,428	406,736
Total loans	31,696,167	32,539,237
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	7,964	9,018
PCI Loans Carrying Value [Member] | Commercial Portfolio Segment [Member]
Recorded investment in loans
Financing Receivable, Recorded Investment, Current	0	0
PCI Loans Carrying Value [Member] | Consumer Portfolio Segment [Member]
Recorded investment in loans
Financing Receivable, Recorded Investment, Current	$ 7,964	$ 9,018

Loans and Allowance for Credi23

Loans and Allowance for Credit Losses, Loans by Credit Quality Indicator, Commercial (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Abstract]
Total loans	$ 34,824,594	$ 35,865,176
Total commercial [Member]
Loans and Leases Receivable Disclosure [Abstract]
Total loans	3,128,427	3,325,939
Total commercial [Member] | Pass [Member]
Loans and Leases Receivable Disclosure [Abstract]
Total loans	3,117,199	3,316,604
Total commercial [Member] | Criticized [Member]
Loans and Leases Receivable Disclosure [Abstract]
Total loans	$ 11,228	$ 9,335

Loans and Allowance for Credi24

Loans and Allowance for Credit Losses, Loans by Delinquency Status, Commercial (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
By delinquency status:
Total loans	$ 34,824,594	$ 35,865,176
Total commercial [Member]
By delinquency status:
90 days and more past due and still accruing	2,854	990
Nonaccrual loans	2,519	2,306
Total loans	3,128,427	3,325,939
Current-29 days past due (DPD) and still accruing [Member] | Total commercial [Member]
By delinquency status:
Total loans	3,104,883	3,320,666
30-89 DPD and still accruing [Member] | Total commercial [Member]
By delinquency status:
Total loans	$ 18,171	$ 1,977

Loans and Allowance for Credi25

Loans and Allowance for Credit Losses, Loans by Delinquency Status, Consumer (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
By delinquency status:
Total loans	$ 34,824,594	$ 35,865,176
Total consumer [Member]
By delinquency status:
Remaining PCI accounting adjustments	(9,144)	(8,775)
Total loans	31,696,167	32,539,237
Real estate 1-4 family first mortgage [Member]
By delinquency status:
Remaining PCI accounting adjustments	(5,860)	(5,426)
Total loans	30,887,109	31,683,651
Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Remaining PCI accounting adjustments	(3,284)	(3,349)
Total loans	809,058	855,586
Current-29 DPD [Member] | Total consumer [Member]
By delinquency status:
Total loans	31,524,816	32,348,774
Current-29 DPD [Member] | Real estate 1-4 family first mortgage [Member]
By delinquency status:
Total loans	30,753,549	31,529,774
Current-29 DPD [Member] | Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Total loans	771,267	819,000
30-59 DPD [Member] | Total consumer [Member]
By delinquency status:
Total loans	63,241	77,254
30-59 DPD [Member] | Real estate 1-4 family first mortgage [Member]
By delinquency status:
Total loans	50,366	63,591
30-59 DPD [Member] | Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Total loans	12,875	13,663
60-89 DPD [Member] | Total consumer [Member]
By delinquency status:
Total loans	25,875	27,015
60-89 DPD [Member] | Real estate 1-4 family first mortgage [Member]
By delinquency status:
Total loans	16,109	20,770
60-89 DPD [Member] | Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Total loans	9,766	6,245
90-119 DPD [Member] | Total consumer [Member]
By delinquency status:
Total loans	11,781	20,846
90-119 DPD [Member] | Real estate 1-4 family first mortgage [Member]
By delinquency status:
Total loans	7,981	15,384
90-119 DPD [Member] | Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Total loans	3,800	5,462
120-179 DPD [Member] | Total consumer [Member]
By delinquency status:
Total loans	18,873	12,883
120-179 DPD [Member] | Real estate 1-4 family first mortgage [Member]
By delinquency status:
Total loans	14,928	9,235
120-179 DPD [Member] | Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Total loans	3,945	3,648
180 plus DPD [Member] | Total consumer [Member]
By delinquency status:
Total loans	60,725	61,240
180 plus DPD [Member] | Real estate 1-4 family first mortgage [Member]
By delinquency status:
Total loans	50,036	50,323
180 plus DPD [Member] | Real estate 1-4 family junior lien mortgage [Member]
By delinquency status:
Total loans	$ 10,689	$ 10,917

Loans and Allowance for Credi26

Loans and Allowance for Credit Losses, Loans by FICO Score, Consumer (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
By FICO:
Total loans	$ 34,824,594	$ 35,865,176
Total consumer [Member]
By FICO:
Remaining PCI accounting adjustments	(9,144)	(8,775)
Total loans	31,696,167	32,539,237
Real estate 1-4 family first mortgage [Member]
By FICO:
Remaining PCI accounting adjustments	(5,860)	(5,426)
Total loans	30,887,109	31,683,651
Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Remaining PCI accounting adjustments	(3,284)	(3,349)
Total loans	809,058	855,586
FICO less than 600 [Member] | Total consumer [Member]
By FICO:
Total loans	233,039	254,473
FICO less than 600 [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	167,599	179,829
FICO less than 600 [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	65,440	74,644
FICO 600-639 [Member] | Total consumer [Member]
By FICO:
Total loans	181,485	189,458
FICO 600-639 [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	129,159	138,782
FICO 600-639 [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	52,326	50,676
FICO 640-679 [Member] | Total consumer [Member]
By FICO:
Total loans	399,431	396,947
FICO 640-679 [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	317,657	307,999
FICO 640-679 [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	81,774	88,948
FICO 680-719 [Member] | Total consumer [Member]
By FICO:
Total loans	1,073,676	1,138,342
FICO 680-719 [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	928,622	988,162
FICO 680-719 [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	145,054	150,180
FICO 720-759 [Member] | Total consumer [Member]
By FICO:
Total loans	2,566,921	2,715,322
FICO 720-759 [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	2,417,533	2,556,013
FICO 720-759 [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	149,388	159,309
FICO 760-799 [Member] | Total consumer [Member]
By FICO:
Total loans	5,674,166	6,084,714
FICO 760-799 [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	5,551,568	5,957,929
FICO 760-799 [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	122,598	126,785
FICO 800 or more [Member] | Total consumer [Member]
By FICO:
Total loans	21,383,448	21,551,465
FICO 800 or more [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	21,203,047	21,359,614
FICO 800 or more [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	180,401	191,851
No FICO available [Member] | Total consumer [Member]
By FICO:
Total loans	193,145	217,291
No FICO available [Member] | Real estate 1-4 family first mortgage [Member]
By FICO:
Total loans	177,784	200,749
No FICO available [Member] | Real estate 1-4 family junior lien mortgage [Member]
By FICO:
Total loans	$ 15,361	$ 16,542

Loans and Allowance for Credi27

Loans and Allowance for Credit Losses, Loans by Loan to Value Ratio, Consumer (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
High Value Properties, Threshold	$ 1,000
By LTV/CLTV:
Total loans	34,824,594	$ 35,865,176
Total consumer [Member]
By LTV/CLTV:
Remaining PCI accounting adjustments	(9,144)	(8,775)
Total loans	31,696,167	32,539,237
Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Remaining PCI accounting adjustments	(5,860)	(5,426)
Total loans	30,887,109	31,683,651
Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Remaining PCI accounting adjustments	(3,284)	(3,349)
Total loans	809,058	855,586
LTV 0-60% [Member] | Total consumer [Member]
By LTV/CLTV:
Total loans	17,862,138	17,807,436
LTV 0-60% [Member] | Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Total loans	17,571,140	17,500,078
LTV 0-60% [Member] | Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Total loans	290,998	307,358
LTV 60.01-80% [Member] | Total consumer [Member]
By LTV/CLTV:
Total loans	12,271,320	13,068,225
LTV 60.01-80% [Member] | Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Total loans	12,035,580	12,827,337
LTV 60.01-80% [Member] | Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Total loans	235,740	240,888
LTV 80 to 100 Percent [Member] | Total consumer [Member]
By LTV/CLTV:
Total loans	1,269,499	1,349,760
LTV 80 to 100 Percent [Member] | Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Total loans	1,087,623	1,153,304
LTV 80 to 100 Percent [Member] | Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Total loans	181,876	196,456
LTV 100.01-120% [Member] | Total consumer [Member]
By LTV/CLTV:
Total loans	199,646	210,273
LTV 100.01-120% [Member] | Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Total loans	125,785	129,637
LTV 100.01-120% [Member] | Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Total loans	73,861	80,636
LTV greater than 120% [Member] | Total consumer [Member]
By LTV/CLTV:
Total loans	86,221	96,463
LTV greater than 120% [Member] | Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Total loans	58,363	64,239
LTV greater than 120% [Member] | Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Total loans	27,858	32,224
No LTV/CLTV available [Member] | Total consumer [Member]
By LTV/CLTV:
Total loans	16,487	15,855
No LTV/CLTV available [Member] | Real estate 1-4 family first mortgage [Member]
By LTV/CLTV:
Total loans	14,478	14,482
No LTV/CLTV available [Member] | Real estate 1-4 family junior lien mortgage [Member]
By LTV/CLTV:
Total loans	$ 2,009	$ 1,373

Loans and Allowance for Credi28

Loans and Allowance for Credit Losses, Nonaccrual (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Total commercial [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	$ 2,519	$ 2,306
Total consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	36,800	41,700
Loans Excluding Certain Loans Acquired In Transfer With Evidence Of Credit Deterioration [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	197,190	197,390
Loans Excluding Certain Loans Acquired In Transfer With Evidence Of Credit Deterioration [Member] | Total commercial [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	2,519	2,306
Loans Excluding Certain Loans Acquired In Transfer With Evidence Of Credit Deterioration [Member] | Total consumer [Member]
Nonaccrual Loans [Abstract]
Nonaccrual loans	194,671	195,084
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	152,510	150,381
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	$ 42,161	$ 44,703

Loans and Allowance for Credi29

Loans and Allowance for Credit Losses, 90 Days Past Due but Still Accruing (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Total commercial [Member]
90 Days Past Due and Still Accruing [Abstract]
90 days and more past due and still accruing	$ 2,854	$ 990
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	8,272	12,905
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	2,854	990
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	5,418	11,915
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	3,999	9,001
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	1,419	2,914
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	$ 529	$ 699

Loans and Allowance for Credi30

Loans and Allowance for Credit Losses, Impaired Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Impaired Loans [Abstract]
Unpaid principal balance	$ 471,337	$ 481,819
Impaired Loans, recorded investment	400,580	409,728
Impaired Loans with related allowance for credit losses, recorded investment	282,219	291,362
Related allowance for credit losses	55,923	56,805
Total commercial [Member]
Impaired Loans [Abstract]
Unpaid principal balance	4,146	3,714
Impaired Loans, recorded investment	3,152	2,992
Impaired Loans with related allowance for credit losses, recorded investment	3,152	2,992
Related allowance for credit losses	1,021	893
Total consumer [Member]
Impaired Loans [Abstract]
Unpaid principal balance	467,191	478,105
Impaired Loans, recorded investment	397,428	406,736
Impaired Loans with related allowance for credit losses, recorded investment	279,067	288,370
Related allowance for credit losses	54,902	55,912
Real estate 1-4 family first mortgage [Member]
Impaired Loans [Abstract]
Unpaid principal balance	369,250	377,877
Impaired Loans, recorded investment	309,207	315,529
Impaired Loans with related allowance for credit losses, recorded investment	208,525	215,109
Related allowance for credit losses	37,274	37,090
Real estate 1-4 family junior lien mortgage [Member]
Impaired Loans [Abstract]
Unpaid principal balance	97,941	100,228
Impaired Loans, recorded investment	88,221	91,207
Impaired Loans with related allowance for credit losses, recorded investment	70,542	73,261
Related allowance for credit losses	17,628	18,822
Trial modifications [Member]
Impaired Loans [Abstract]
Impaired Loans, recorded investment	$ 5,600	$ 7,500

Loans and Allowance for Credi31

Loans and Allowance for Credit Losses, Impaired Loans, Average Recorded Investment and Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Impaired Loans, Average Recorded Investment [Abstract]
Average recorded investment	$ 405,821	$ 449,421
Recognized interest income	6,920	7,567
Interest income:
Cash basis of accounting	1,897	2,158
Other	5,023	5,409
Total commercial [Member]
Impaired Loans, Average Recorded Investment [Abstract]
Average recorded investment	3,021	3,244
Recognized interest income	12	12
Total consumer [Member]
Impaired Loans, Average Recorded Investment [Abstract]
Average recorded investment	402,800	446,177
Recognized interest income	6,908	7,555
Real estate 1-4 family first mortgage [Member]
Impaired Loans, Average Recorded Investment [Abstract]
Average recorded investment	313,170	346,133
Recognized interest income	4,960	5,406
Real estate 1-4 family junior lien mortgage [Member]
Impaired Loans, Average Recorded Investment [Abstract]
Average recorded investment	89,630	100,044
Recognized interest income	$ 1,948	$ 2,149

Loans and Allowance for Credi32

Loans and Allowance for Credit Losses, Troubled Debt Restructurings Modifications by Type (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Net Amount	$ 34,701,731		$ 35,735,816
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	10,232	$ 11,655
Financial effects of modifications
Charge-offs	$ 87	$ 622
Weighted average interest rate reduction	2.14%	3.70%
Total commercial [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 2,067	$ 0
Financial effects of modifications
Charge-offs	$ 0	$ 0
Weighted average interest rate reduction	0.00%	0.00%
Total consumer [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 8,165	$ 11,655
Financial effects of modifications
Charge-offs	$ 87	$ 622
Weighted average interest rate reduction	2.14%	3.70%
Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 7,651	$ 9,976
Financial effects of modifications
Charge-offs	$ 76	$ 441
Weighted average interest rate reduction	2.13%	3.34%
Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 2,103	$ 2,872
Financial effects of modifications
Charge-offs	$ 11	$ 181
Weighted average interest rate reduction	2.28%	4.98%
Trial modifications [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ (1,589)	$ (1,193)
Financial effects of modifications
Charge-offs	$ 0	$ 0
Weighted average interest rate reduction	0.00%	0.00%
Modification to principal [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 2,093	$ 4,731
Modification to principal [Member] | Total commercial [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0
Modification to principal [Member] | Total consumer [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,093	4,731
Modification to principal [Member] | Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,049	4,105
Modification to principal [Member] | Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	44	626
Modification to principal [Member] | Trial modifications [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0
Contractual Interest Rate Reduction [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	82	4,091
Contractual Interest Rate Reduction [Member] | Total commercial [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0
Contractual Interest Rate Reduction [Member] | Total consumer [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	82	4,091
Contractual Interest Rate Reduction [Member] | Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	2,884
Contractual Interest Rate Reduction [Member] | Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	82	1,207
Contractual Interest Rate Reduction [Member] | Trial modifications [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0
Modifications, other concessions [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	8,057	2,833
Modifications, other concessions [Member] | Total commercial [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,067	0
Modifications, other concessions [Member] | Total consumer [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	5,990	2,833
Modifications, other concessions [Member] | Real estate 1-4 family first mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	5,602	2,987
Modifications, other concessions [Member] | Real estate 1-4 family junior lien mortgage [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,977	1,039
Modifications, other concessions [Member] | Trial modifications [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	(1,589)	(1,193)
Modification of recorded investment related to interest rate reduction [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,182	6,167
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
Modification of recorded investment related to interest rate reduction [Member] | Total consumer [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,182	6,167
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	1,100	4,791
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	82	1,376
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
Troubled debt restructuring balance [Member]
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Net Amount	400,600		$ 409,700
Loans remodified [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	4,200	3,200
Principal Forgiveness [Member]
Primary modification type
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 112	$ 396

Loans and Allowance for Credi33

Loans and Allowance for Credit Losses, Troubled Debt Restructurings, Current Defaults (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Financing Receivable, Modifications [Line Items]
Recorded investment of defaults	$ 785	$ 476
Total commercial [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment of defaults	0	0
Total consumer [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment of defaults	785	476
Real estate 1-4 family first mortgage [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment of defaults	730	419
Real estate 1-4 family junior lien mortgage [Member]
Financing Receivable, Modifications [Line Items]
Recorded investment of defaults	$ 55	$ 57

Fair Value, Estimates for Finan

Fair Value, Estimates for Financial Instruments Not Carried at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
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	$ 0	$ 2,106,854	$ 971,349
Loans, net	34,701,731	35,735,816
Carrying amount [Member]
Financial assets
Cash and cash equivalents	0	0
Loans, net	34,701,731	35,735,816
Financial liabilities
Line of credit with Bank	2,506,674	3,551,426
Estimated fair value [Member]
Financial assets
Cash and cash equivalents	0	0
Loans, net	34,709,411	36,407,260
Financial liabilities
Line of credit with Bank	2,506,674	3,551,426
Estimated fair value [Member] | Level 1 [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 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	34,709,411	36,407,260
Financial liabilities
Line of credit with Bank	$ 2,506,674	$ 3,551,426

Common and Preferred Stock (Det

Common and Preferred Stock (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Class of Stock [Line Items]
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
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	7105.00%

Transactions with Related Par36

Transactions with Related Parties (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Interest income:
Net accretion of adjustments on loans	$ 4,278	$ 3,893
Total interest income	351,664	310,615
Pledge fees	6,037	13,599
Interest expense	14,402	0
Loan servicing costs	21,922	18,752
Management fees	6,260	6,912
Balance sheet related data
Cash and Cash Equivalents, at Carrying Value	0	2,106,854	$ 0	$ 971,349
Loan acquisitions (year-to-date)	0	0
Loan sales (book value) (year-to-date)	(3,641)	(14,195)
Line of credit with Bank	2,506,674		3,551,426
Accounts receivable - affiliates, net	103,275		113,755
Related Party [Member]
Related Party Transaction [Line Items]
Financial Instruments, Owned and Pledged as Collateral, at Fair Value	0		24,800,000
Interest income:
Net accretion of adjustments on loans	4,278	3,893
Interest on deposits	0	2,780
Total interest income	4,278	6,673
Pledge fees	6,037	13,599
Interest expense	14,402	0
Loan servicing costs	21,922	18,752
Management fees	6,260	6,912
Balance sheet related data
Cash and Cash Equivalents, at Carrying Value	0		0
Loan acquisitions (year-to-date)	0	9,162,579
Loan sales (book value) (year-to-date)	(3,609)	(121,210)
Pledged loans (carrying value)	0		24,323,830
Foreclosed assets sales (year-to-date)	(2,576)	$ (11,495)
Line of credit with Bank	2,506,674		3,551,426
Accounts receivable - affiliates, net	$ 103,275		$ 113,755
Pledged Loans, Collateral Threshold, Percentage Of Total Assets	80.00%
Pledged loan annual basis point rate applied to UPB	0.15%	0.34%
Revolving Credit Facility [Member] | Related Party [Member]
Balance sheet related data
Line of Credit Facility, Maximum Borrowing Capacity	$ 5,000,000
Federal Funds Effective Swap Rate [Member] | Revolving Credit Facility [Member] | Related Party [Member]
Balance sheet related data
Debt Instrument, Basis Spread on Variable Rate	0.044%