Sterling Bancorp (STL) 10-Q 3 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	Apr. 30, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	STERLING BANCORP
Entity Central Index Key	0001070154
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Smaller Reporting Company	false
Emerging Growth Company	false
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding (in shares)		209,679,900

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
ASSETS:
Cash and due from banks	$ 314,255	$ 438,110
Securities:
Available for sale, at fair value	3,847,799	3,870,563
Held to maturity, at amortized cost (fair value of $2,079,057 and $2,740,522 at March 31, 2019 and December 31, 2018, respectively)	2,067,251	2,796,617
Total securities	5,915,050	6,667,180
Loans held for sale	248,972	1,565,979
Portfolio loans	19,908,473	19,218,530
Allowance for loan losses	(98,960)	(95,677)
Portfolio loans, net	19,809,513	19,122,853
Federal Home Loan Bank (“FHLB”) and Federal Reserve Bank (“FRB”) stock, at cost	298,455	369,690
Accrued interest receivable	115,764	107,111
Premises and equipment, net	262,744	264,194
Goodwill	1,657,814	1,613,033
Other intangible assets, net	124,719	129,545
Bank owned life insurance	657,504	653,995
Other real estate owned	16,502	19,377
Other assets	535,315	432,240
Total assets	29,956,607	31,383,307
LIABILITIES:
Deposits	21,225,639	21,214,148
FHLB borrowings	3,259,507	4,838,772
Repurchase agreements	27,020	21,338
Senior Notes	173,952	181,130
Subordinated Notes	173,001	172,943
Mortgage escrow funds	102,036	72,891
Other liabilities	576,229	453,232
Total liabilities	25,537,384	26,954,454
Commitments and Contingent liabilities (See Note 17. “Commitments and Contingencies”)
STOCKHOLDERS’ EQUITY:
Preferred stock (par value $0.01 per share; 10,000,000 shares authorized; 135,000 shares issued and outstanding at March 31, 2019 and December 31, 2018)	138,218	138,423
Common stock (par value $0.01 per share; 310,000,000 shares authorized at March 31, 2019 and December 31, 2018; 229,872,925 shares issued at March 31, 2019 and December 31, 2018; 209,560,824 and 216,227,852 shares outstanding at March 31, 2019 and December 31, 2018, respectively)	2,299	2,299
Additional paid-in capital	3,751,835	3,776,461
Treasury stock, at cost (20,312,101 shares at March 31, 2019 and 13,645,073 shares at December 31, 2018)	(355,357)	(213,935)
Retained earnings	888,838	791,550
Accumulated other comprehensive loss, net of tax benefit of $(2,763) at March 31, 2019 and $(25,429) at December 31, 2018	(6,610)	(65,945)
Total stockholders’ equity	4,419,223	4,428,853
Total liabilities and stockholders’ equity	$ 29,956,607	$ 31,383,307

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Securities held to maturity, fair value	$ 2,079,057	$ 2,740,522
Preferred stock, par value (USD per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	135,000	135,000
Preferred stock, shares outstanding (in shares)	135,000	135,000
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	310,000,000	310,000,000
Common stock, shares issued (in shares)	229,872,925	229,872,925
Common stock, shares outstanding (in shares)	209,560,824	216,227,852
Treasury stock, shares (in shares)	20,312,101	13,645,073
Accumulated other comprehensive loss, tax benefit	$ (2,763)	$ 25,429

Consolidated Income Statements

Consolidated Income Statements (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Interest and dividend income:
Loans and loan fees	$ 260,295	$ 234,615
Securities taxable	27,847	27,061
Securities non-taxable	14,857	15,312
Other earning assets	6,401	4,358
Total interest and dividend income	309,400	281,346
Interest expense:
Deposits	45,995	24,206
Borrowings	27,899	22,770
Total interest expense	73,894	46,976
Net interest income	235,506	234,370
Provisions for loan losses	10,200	13,000
Net interest income after provision for loan losses	225,306	221,370
Non-interest income:
Deposit fees and service charges	6,212	7,003
Accounts receivable management / factoring commissions and other fees	5,423	5,360
Bank owned life insurance	3,641	3,614
Loan commissions and fees	3,838	3,406
Investment management fees	1,900	1,825
Net loss on sale of securities	(13,184)	(5,421)
Gain on sale of residential mortgage loans	8,313	0
Other	3,454	2,920
Total non-interest income	19,597	18,707
Non-interest expense:
Compensation and benefits	55,990	54,680
Stock-based compensation plans	5,123	2,854
Occupancy and office operations	16,535	17,460
Information technology	8,675	11,718
Amortization of intangible assets	4,826	6,052
FDIC insurance and regulatory assessments	3,338	5,347
Other real estate owned expense, net	217	364
Charge for asset write-downs, retention and severance	3,344	0
Other	16,944	13,274
Total non-interest expense	114,992	111,749
Income before income tax expense	129,911	128,328
Income tax expense	28,474	29,456
Net income	101,437	98,872
Preferred stock dividend	1,989	1,999
Net income available to common stockholders	$ 99,448	$ 96,873
Weighted average common shares:
Basic (in shares)	213,157,090	224,730,686
Diluted (in shares)	213,505,842	225,264,147
Earnings per common share:
Basic (USD per share)	$ 0.47	$ 0.43
Diluted (USD per share)	$ 0.47	$ 0.43

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 101,437	$ 98,872
Other comprehensive income (loss), before tax:
Change in unrealized holding gains (losses) on securities available for sale	75,329	(72,321)
Unrealized loss on transfer of securities held to maturity to available for sale	(11,813)	0
Reclassification adjustment for net realized losses included in net income	13,184	5,421
Accretion of net unrealized loss on securities transferred to held to maturity	2,417	234
Change in the actuarial loss of defined benefit plan and post-retirement benefit plans	2,883	679
Total other comprehensive income (loss), before tax	82,000	(65,987)
Deferred tax (expense) benefit related to other comprehensive (loss) income	(22,665)	18,238
Other comprehensive income (loss), net of tax	59,335	(47,749)
Comprehensive income	$ 160,772	$ 51,123

Consolidated Statement of Chang

Consolidated Statement of Changes In Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common stock	Preferred stock	Additional paid-in capital	Treasury stock	Retained earnings	Accumulated other comprehensive (loss)
Balance (in shares) at Dec. 31, 2017		224,782,694
Balance, beginning at Dec. 31, 2017	$ 4,240,178	$ 2,299	$ 139,220	$ 3,780,908	$ (58,039)	$ 401,956	$ (26,166)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	98,872					98,872
Other comprehensive income	(47,749)						(47,749)
Stock options & other stock transactions, net (in shares)		28,794
Stock option & other stock transactions, net	331			2	375	(46)
Restricted stock awards, net (in shares)		654,778
Restricted stock awards, net	10			(14,630)	6,562	8,078
Cash dividends declared, common	(15,693)					(15,693)
Cash dividends declared, preferred	$ (2,194)		(195)			(1,999)
Purchase of treasury stock (in shares)	0
Reclassification of the stranded income tax effects from the enactment of the Tax Cuts and Jobs Act from accumulated other comprehensive (loss)	$ (5,129)					5,129	(5,129)
Balance (in shares) at Mar. 31, 2018		225,466,266
Balance, ending at Mar. 31, 2018	4,273,755	$ 2,299	139,025	3,766,280	(51,102)	496,297	(79,044)
Balance (in shares) at Dec. 31, 2017		224,782,694
Balance, beginning at Dec. 31, 2017	4,240,178	$ 2,299	139,220	3,780,908	(58,039)	401,956	(26,166)
Balance (in shares) at Dec. 31, 2018		216,227,852
Balance, ending at Dec. 31, 2018	4,428,853	$ 2,299	138,423	3,776,461	(213,935)	791,550	(65,945)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	101,437					101,437
Other comprehensive income	59,335						59,335
Stock options & other stock transactions, net (in shares)		3,893
Stock option & other stock transactions, net	55			0	49	6
Restricted stock awards, net (in shares)		1,331,674
Restricted stock awards, net	1,105			(24,626)	12,818	12,913
Cash dividends declared, common	(15,079)					(15,079)
Cash dividends declared, preferred	$ (2,194)		(205)			(1,989)
Purchase of treasury stock (in shares)	(8,002,595)
Purchase of treasury stock	$ (154,289)				(154,289)
Balance (in shares) at Mar. 31, 2019		209,560,824
Balance, ending at Mar. 31, 2019	$ 4,419,223	$ 2,299	$ 138,218	$ 3,751,835	$ (355,357)	$ 888,838	$ (6,610)

Consolidated Statement of Cha_2

Consolidated Statement of Changes In Stockholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Stockholders' Equity [Abstract]
Cash dividends paid, common (usd per share)	$ 0.07	$ 0.07
Cash dividends paid, preferred (usd per share)	$ 16,250	$ 16.25

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 101,437	$ 98,872
Adjustments to reconcile net income to net cash provided by operating activities:
Provisions for loan losses	10,200	13,000
Net (gain) from write-downs and sales of other real estate owned	(316)	(272)
Net (gain) on extinguishment of Senior Notes	46	0
Depreciation of premises and equipment	4,990	5,082
Asset write-downs, retention and severance compensation and other restructuring charges	3,344	0
Amortization of intangible assets	4,826	6,052
Amortization of low income housing tax credits	3,810	998
Net loss on sale of securities	13,184	5,421
Net gain on loans held for sale	(8,337)	(2)
Net amortization of premiums on securities	9,060	9,514
Amortization of premium on certificates of deposit	(1,077)	(1,687)
Net accretion of purchase discount and amortization of net deferred loan costs	(25,280)	(30,090)
Net accretion of debt issuance costs and amortization of premium on borrowings	(431)	(595)
Restricted stock compensation expense	5,123	2,852
Stock option compensation expense	0	2
Originations of loans held for sale	(4,500)	(44,077)
Proceeds from sales of loans held for sale	2,273	4,885
Increase in cash surrender value of bank owned life insurance	(3,641)	(3,614)
Deferred income tax expense	21,073	15,327
Other adjustments (principally net changes in other assets and other liabilities)	(27,324)	(19,063)
Net cash provided by operating activities	108,368	62,605
Purchases of securities:
Available for sale	(17,839)	(416,491)
Held to maturity	(3,420)	(54,279)
Proceeds from maturities, calls and other principal payments on securities:
Available for sale	71,784	76,694
Held to maturity	17,311	33,706
Proceeds from sales of securities available for sale	738,751	117,810
Portfolio loan originations, net	(200,709)	86,297
Proceeds from sale of residential mortgage loans	1,319,234	0
Redemptions (purchases) of FHLB and FRB stock, net	71,235	(70,720)
Proceeds from sales of other real estate owned	4,198	7,590
Purchases of premises and equipment	(3,540)	(1,627)
Proceeds from (premiums paid for) bank owned life insurance	132	(26)
Purchases of low income housing tax credits	(3,602)	(2,063)
Cash paid for acquisition, net	(515,692)	0
Net cash provided by (used in) investing activities	1,477,843	(223,109)
Cash flows from financing activities:
Net (decrease) increase in transaction, savings and money market deposits	(44,755)	19,992
Net increase in certificates of deposit	57,323	66,724
Net (decrease) in short-term FHLB borrowings	(754,000)	(885,000)
Advances of term FHLB borrowings	300,000	1,125,000
Repayments of term FHLB borrowings	(1,125,000)	(300,000)
Repayment of Senior Notes	(6,954)	0
Net increase (decrease) in other borrowings	5,682	(3,312)
Net increase in mortgage escrow funds	29,145	39,083
Proceeds from stock option exercises	55	329
Treasury shares repurchase	154,289	0
Cash dividends paid - common stock	(15,079)	(15,693)
Cash dividends paid - preferred stock	(2,194)	(2,194)
Net cash (used in) provided by financing activities	(1,710,066)	44,929
Net decrease in cash and cash equivalents	(123,855)	(115,575)
Cash and cash equivalents at beginning of period	438,110	479,906
Cash and cash equivalents at end of period	314,255	364,331
Supplemental cash flow information:
Interest payments	69,935	41,870
Income tax payments	14	9,647
Real estate acquired in settlement of loans	1,007	4,716
Unsettled securities transactions	7,188	0
Securities held to maturity transferred to available for sale	708,627	0
Operating cash flows from operating leases	4,153
Right-of-use assets obtained in exchange for lease liabilities	125,394
Non-cash assets acquired:
Total loans, net	471,878	0
Accrued interest receivable	1,789	0
Goodwill	44,781	0
Other assets	545	0
Total non-cash assets acquired	518,993	0
Liabilities assumed:
Other liabilities	3,301	0
Total liabilities assumed	3,301	0
Net non-cash assets acquired	515,692	0
Cash and cash equivalents received in acquisitions	0	0
Total consideration paid	$ 515,692	$ 0

Basis of Financial Statement Pr

Basis of Financial Statement Presentation	3 Months Ended
	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Financial Statement Presentation	Basis of Financial Statement Presentation (a) Nature of Operations Sterling Bancorp (the “Company,” “we,” “us” and “our” ) is a Delaware corporation, a bank holding company and a financial holding company headquartered in Montebello, New York that owns all of the outstanding shares of common stock of Sterling National Bank (the “Bank”), its principal subsidiary. The Bank is a full-service regional bank specializing in the delivery of services and solutions to business owners, their families and consumers within the communities it serves through teams of dedicated and experienced relationship managers. (b) Basis of Presentation The consolidated financial statements in this Quarterly Report on Form 10-Q include the accounts of the Company and all other entities in which the Company has a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation. The accounting and financial reporting policies we follow conform, in all material respects, to accounting principles generally accepted in the United States (“GAAP”) and to general practices within the banking industry, which include regulatory reporting instructions. The consolidated financial statements in this Quarterly Report on Form 10-Q have not been audited by an independent registered public accounting firm, but, in the opinion of management, reflect all adjustments necessary for a fair presentation of our financial position and results of operations. All such adjustments were of a normal and recurring nature. The consolidated financial statements have been prepared in accordance with GAAP and with the instructions to Form 10-Q adopted by the Securities and Exchange Commission (the “SEC”). Accordingly, the financial statements do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with our consolidated financial statements, and notes thereto, for the year ended December 31, 2018 , included in our Annual Report on Form 10-K, as filed with the SEC on March 1, 2019 (the “2018 Form 10-K”). Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period. Certain items in prior financial statements have been reclassified to conform to the current presentation. These reclassifications had no impact on previously reported net income. (c) Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, income, expense and contingencies at the date of the financial statements. Actual results could differ significantly from these estimates, particularly the allowance for loan losses and the status of contingencies, and are subject to change. (d) Adoption of New Accounting Standards We adopted ASU No. 2016-02 “Leases (Topic 842)” , as of January 1, 2019, which requires lessees to recognize most leases on their balance sheets as a right-of-use asset with a corresponding lease liability. The standard included additional required qualitative and quantitative disclosures. We adopted the following practical expedients and elected the following accounting policies related to the leasing standard: • Carry over of historical lease classifications and whether existing contracts contain leases; • Current lease classification for existing leases; • Short-term lease accounting policy election allowing us not to recognize right-of-use assets and liabilities for leases with a term of 12 months or less; and • The option not to separate lease and non-lease components for certain leases. Adoption of this standard resulted in the recognition of right-of-use assets of $125,394 and a lease liability of $130,860 , included in other assets and other liabilities, respectively, in the March 31, 2019 consolidated balance sheet. The standard did not have a significant impact on operating results or cash flows. See Note 9. “Leases” for additional information. We adopted ASU 2017-12, “Derivatives and Hedging (Topic 815) - Targeted Improvements to Accounting for Hedging Activities,” (“ASU 2017-12”) which amended the hedge accounting recognition and presentation requirements in ASC 815 to improve the transparency and understandability of information conveyed to financial statement users about an entity’s risk management activities to better align the entity’s financial reporting for hedging relationships with those risk management activities and to reduce the complexity of and simplify the application of hedge accounting. A provision in ASU 2017-12 provides that we may reclassify a debt security from held to maturity to available for sale at the time of adoption if the debt security is eligible to be hedged under the last-of-layer method in accordance ASU 2017-12. Generally, this includes debt securities that are pre-payable, including mortgage-backed securities, and debt securities that are callable by the issuer, which are applicable to many of our state and local government debt securities. We transferred held to maturity securities with a book value of $720,440 and a fair value of $708,627 at December 31, 2018 to available for sale effective January 1, 2019. See Note 3. “Securities” for additional information.

Acquisitions

Acquisitions	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
Acquisitions	Acquisitions Commercial loan portfolio and origination platform acquired from Woodforest National Bank On February 28, 2019, the Bank acquired a commercial loan portfolio consisting of equipment finance loans and leases and asset-based lending loans from Woodforest National Bank. In addition, the Bank retained sales and relationship management personnel based in Novi, Michigan, which will continue to originate new loans and leases. The total consideration paid in cash at closing was $515,692 . We acquired $166,143 of equipment finance loans, which are mainly fixed rate loans, and $331,842 of asset-based lending loans, which are mainly variable rate loans. The fair value of these loans was $471,878 . The Bank paid a premium of 3.75% on the unpaid principal balance of the loans of $18,674 . The transaction was accounted for as a business combination. We recorded a $3,344 restructuring charge consisting mainly of professional fees, severance, retention, systems integration expense and facilities consolidation, which is included in charge for asset write-downs, retention and severance on the consolidated income statement. We anticipate the acquired loans and origination platform will be fully integrated into our equipment finance and asset-based lending business lines. Acquisition of Advantage Funding Management Co., Inc. (“Advantage Funding”) On April 2, 2018 , the Bank acquired 100% of the outstanding common stock of Advantage Funding (the “Advantage Funding Acquisition”). The total consideration in the transaction was $502,052 and was paid in cash on the closing date. Advantage Funding is a provider of commercial vehicle and transportation financing services based in Lake Success, NY. Advantage Funding had total outstanding loans and leases of $457,638 on the acquisition date consisting mainly of fixed rate assets. The fair value of these loans was $439,622 . The Bank paid a premium on the gross loans and leases receivable of 4.5% or $20,300 . In the second quarter of 2018, we recorded a $4,396 restructuring charge consisting mainly of professional fees, severance, retention, systems integration expense and facilities consolidation, which is included in charge for asset write-downs, retention and severance on the consolidated income statement. The Advantage Funding Acquisition is consistent with our strategy of growing commercial loans and increasing the proportion of commercial loans in our loan portfolio. We anticipate the operations of the business will be fully integrated into our equipment finance business line.

Securities

Securities	3 Months Ended
	Mar. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Securities	Securities A summary of amortized cost and estimated fair value of securities as of March 31, 2019 is presented below. The term “MBS” refers to mortgage-backed securities and the term “CMOs” refers to collateralized mortgage obligations. Both of these terms are further defined in Note 18. “Fair Value Measurements”. March 31, 2019 Available for Sale Held to Maturity Amortized cost Gross unrealized gains Gross unrealized losses Fair value Amortized cost Gross unrecognized gains Gross unrecognized losses Fair value Residential MBS: Agency-backed $ 2,068,142 $ 6,989 $ (23,827 ) $ 2,051,304 $ 190,516 $ 88 $ (2,061 ) $ 188,543 CMOs/Other MBS 545,415 2 (15,907 ) 529,510 — — — — Total residential MBS 2,613,557 6,991 (39,734 ) 2,580,814 190,516 88 (2,061 ) 188,543 Other securities: Federal agencies 216,306 1,059 (1,093 ) 216,272 59,168 370 (13 ) 59,525 Corporate 364,774 5,722 (2,049 ) 368,447 19,942 117 (55 ) 20,004 State and municipal 680,217 4,573 (2,524 ) 682,266 1,780,375 17,461 (4,206 ) 1,793,630 Other — — — — 17,250 109 (4 ) 17,355 Total other securities 1,261,297 11,354 (5,666 ) 1,266,985 1,876,735 18,057 (4,278 ) 1,890,514 Total securities $ 3,874,854 $ 18,345 $ (45,400 ) $ 3,847,799 $ 2,067,251 $ 18,145 $ (6,339 ) $ 2,079,057 A summary of securities classified as held to maturity at December 31, 2018 that were transferred to available for sale effective January 1, 2019 is presented below. Amortized Fair Residential MBS: Agency-backed $ 125,343 $ 121,510 CMOs/Other MBS 27,780 27,017 Total residential MBS 153,123 148,527 Other securities: Corporate 49,001 48,607 State and municipal 518,316 511,493 Total of securities transferred from held to maturity to available for sale $ 720,440 $ 708,627 A summary of amortized cost and estimated fair value of securities as of December 31, 2018 is presented below: December 31, 2018 Available for Sale Held to Maturity Amortized cost Gross unrealized gains Gross unrealized losses Fair value Amortized cost Gross unrecognized gains Gross unrecognized losses Fair value Residential MBS: Agency-backed $ 2,328,870 $ 2,347 $ (62,366 ) $ 2,268,851 $ 318,590 $ 73 $ (8,605 ) $ 310,058 CMOs/Other MBS 596,868 11 (22,109 ) 574,770 27,780 2 (765 ) 27,017 Total residential MBS 2,925,738 2,358 (84,475 ) 2,843,621 346,370 75 (9,370 ) 337,075 Other securities: Federal agencies 283,825 — (9,852 ) 273,973 59,065 160 (128 ) 59,097 Corporate 537,210 1,162 (10,407 ) 527,965 68,512 431 (392 ) 68,551 State and municipal 227,546 302 (2,844 ) 225,004 2,305,420 2,654 (49,562 ) 2,258,512 Other — — — — 17,250 49 (12 ) 17,287 Total other securities 1,048,581 1,464 (23,103 ) 1,026,942 2,450,247 3,294 (50,094 ) 2,403,447 Total securities $ 3,974,319 $ 3,822 $ (107,578 ) $ 3,870,563 $ 2,796,617 $ 3,369 $ (59,464 ) $ 2,740,522 The amortized cost and estimated fair value of securities at March 31, 2019 are presented below by contractual maturity. Actual maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations. Residential MBS are shown separately since they are not due at a single maturity date. March 31, 2019 Available for sale Held to maturity Amortized cost Fair value Amortized cost Fair value Remaining period to contractual maturity: One year or less $ 11,554 $ 11,568 $ 65,358 $ 65,471 One to five years 134,689 134,062 98,556 99,359 Five to ten years 816,088 822,318 210,940 214,695 Greater than ten years 298,966 299,037 1,501,881 1,510,989 Total securities with a stated maturity date 1,261,297 1,266,985 1,876,735 1,890,514 Residential MBS 2,613,557 2,580,814 190,516 188,543 Total securities $ 3,874,854 $ 3,847,799 $ 2,067,251 $ 2,079,057 Sales of securities for the periods indicated below were as follows: For the three months ended March 31, 2019 2018 Available for sale: Proceeds from sales $ 738,751 $ 117,810 Gross realized gains (1) 4,355 1 Gross realized losses (1) (17,539 ) (5,422 ) Income tax benefit on realized net losses (3,644 ) (1,260 ) (1) Gross realized gains and losses includes securities called prior to maturity. We adopted ASU 2017-12, “Derivatives and Hedging (Topic 815) - Targeted Improvements to Accounting for Hedging Activities,” which allowed us to reclassify a debt security from held to maturity to available for sale if the debt security is eligible to be hedged under the last-of-layer method in accordance with ASU 2017-12. Generally, this included debt securities that are pre-payable, including mortgage-backed securities, and debt securities that are callable by the issuer, which are applicable to many of our state and local government debt securities. We transferred held to maturity securities with a book value of $720,440 and a fair value of $708,627 at December 31, 2018 to available for sale effective January 1, 2019. In the first quarter of 2019, we sold securities with a book value of $751,935 to raise liquidity for the commercial loan and origination platform acquired from Woodforest National Bank on February 28, 2019, and to reduce lower yielding securities as a percentage of total assets. At March 31, 2019 and December 31, 2018 , there were no holdings of securities of any one issuer in an amount greater than 10% of stockholders’ equity, other than the U.S. federal government and its agencies. The following table summarizes securities available for sale with unrealized losses, segregated by the length of time in a continuous unrealized loss position for the periods presented below: Continuous unrealized loss position Less than 12 months 12 months or longer Total Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Available for sale March 31, 2019 Residential MBS: Agency-backed $ 95,470 $ (1,209 ) $ 1,509,947 $ (22,618 ) $ 1,605,417 $ (23,827 ) CMOs/Other MBS — — 526,178 (15,907 ) 526,178 (15,907 ) Total residential MBS 95,470 (1,209 ) 2,036,125 (38,525 ) 2,131,595 (39,734 ) Other securities: Federal agencies — — 88,805 (1,093 ) 88,805 (1,093 ) Corporate 23,201 (317 ) 84,236 (1,733 ) 107,437 (2,050 ) State and municipal 218,791 (1,847 ) 99,224 (677 ) 318,015 (2,524 ) Total other securities 241,992 (2,164 ) 272,265 (3,503 ) 514,257 (5,667 ) Total securities $ 337,462 $ (3,373 ) $ 2,308,390 $ (42,028 ) $ 2,645,852 $ (45,401 ) December 31, 2018 Residential MBS: Agency-backed $ 156,787 $ (536 ) $ 1,955,056 $ (61,830 ) $ 2,111,843 $ (62,366 ) CMOs/Other MBS 94 (2 ) 574,053 (22,107 ) 574,147 (22,109 ) Total residential MBS 156,881 (538 ) 2,529,109 (83,937 ) 2,685,990 (84,475 ) Other securities: Federal agencies — — 273,973 (9,852 ) 273,973 (9,852 ) Corporate 230,126 (4,278 ) 119,869 (6,129 ) 349,995 (10,407 ) State and municipal 16,172 (64 ) 175,966 (2,780 ) 192,138 (2,844 ) Total other securities 246,298 (4,342 ) 569,808 (18,761 ) 816,106 (23,103 ) Total securities $ 403,179 $ (4,880 ) $ 3,098,917 $ (102,698 ) $ 3,502,096 $ (107,578 ) The following table summarizes securities held to maturity with unrecognized losses, segregated by the length of time in a continuous unrecognized loss position for the periods presented below: Continuous unrecognized loss position Less than 12 months 12 months or longer Total Fair value Unrecognized losses Fair value Unrecognized losses Fair value Unrecognized losses Held to maturity March 31, 2019 Residential MBS: Agency-backed $ — $ — $ 159,577 $ (2,061 ) $ 159,577 $ (2,061 ) CMOs/Other MBS — — — — — — Total residential MBS — — 159,577 (2,061 ) 159,577 (2,061 ) Other securities: Federal agencies — — 14,824 (13 ) 14,824 (13 ) Corporate — — 9,887 (55 ) 9,887 (55 ) State and municipal 2,820 (2 ) 410,039 (4,204 ) 412,859 (4,206 ) Other 4,996 (4 ) — — 4,996 (4 ) Total other securities 7,816 (6 ) 434,750 (4,272 ) 442,566 (4,278 ) Total securities $ 7,816 $ (6 ) $ 594,327 $ (6,333 ) $ 602,143 $ (6,339 ) December 31, 2018 Residential MBS: Agency-backed $ 25,003 $ (147 ) $ 273,974 $ (8,458 ) $ 298,977 $ (8,605 ) CMOs/Other MBS 101 (2 ) 25,066 (763 ) 25,167 (765 ) Total residential MBS 25,104 (149 ) 299,040 (9,221 ) 324,144 (9,370 ) Other securities: Federal agencies 29,485 (95 ) 4,908 (33 ) 34,393 (128 ) Corporate 21,859 (137 ) 16,261 (255 ) 38,120 (392 ) State and municipal 118,389 (877 ) 1,897,758 (48,685 ) 2,016,147 (49,562 ) Other 9,488 (12 ) — — 9,488 (12 ) Total other securities 179,221 (1,121 ) 1,918,927 (48,973 ) 2,098,148 (50,094 ) Total securities $ 204,325 $ (1,270 ) $ 2,217,967 $ (58,194 ) $ 2,422,292 $ (59,464 ) At March 31, 2019 , a total of 187 available for sale securities were in a continuous unrealized loss position for less than 12 months and 278 available for sale securities were in a continuous unrealized loss position for 12 months or longer. At March 31, 2019 , a total of 6 held to maturity securities were in a continuous unrealized loss position for less than 12 months and 154 held to maturity securities were in a continuous unrealized loss position for 12 months or longer. Declines in the fair value of held to maturity and available for sale securities below their cost that are deemed to be other than temporary are reflected in earnings as realized losses to the extent the impairment is related to credit losses. The amount of the impairment related to other factors is recognized in other comprehensive income. In estimating other than temporary impairment (“OTTI”) losses, management considers, among other things: (i) the length of time and the extent to which the fair value has been less than cost; (ii) the financial condition and near-term prospects of the issuer; and (iii) our intent and ability to retain the investment in the issuer for a period of time sufficient to allow for any anticipated recovery in cost. Management has the ability and intent to hold the securities classified as held to maturity in the table above until they mature, at which time we anticipate we will receive full value for the securities. Furthermore, as of March 31, 2019 , management did not have the intent to sell any of the securities classified as available for sale in the table above and believes that it is more likely than not that we will not have to sell any such securities before a recovery of cost. Any unrealized losses are largely due to increases in market interest rates over the yields available at the time the underlying securities were purchased. The fair value is expected to recover as the securities approach their maturity date or repricing date or if market yields for such investments decline. Management does not believe any of the securities are impaired due to reasons related to credit quality. As of March 31, 2019 , management believes the impairments detailed in the table above are temporary. Securities pledged for borrowings at the FHLB and other institutions, and securities pledged for municipal deposits and other purposes, were as follows for the periods presented below: March 31, December 31, 2019 2018 Available for sale securities pledged for borrowings, at fair value $ 27,020 $ 12,206 Available for sale securities pledged for municipal deposits, at fair value 1,489,651 817,306 Held to maturity securities pledged for borrowings, at amortized cost 1,503 34,996 Held to maturity securities pledged for municipal deposits, at amortized cost 921,668 1,338,901 Total securities pledged $ 2,439,842 $ 2,203,409

Portfolio Loans

Portfolio Loans	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Portfolio Loans	Portfolio Loans The composition of our total portfolio loans, which excludes loans held for sale, was the following for the periods presented below: March 31, 2019 December 31, 2018 Originated loans Acquired loans Total Originated loans Acquired loans Total Commercial: C&I: Traditional C&I $ 2,386,984 $ 70,227 $ 2,457,211 $ 2,321,131 $ 75,051 $ 2,396,182 Asset-based lending 793,598 291,974 1,085,572 792,935 — 792,935 Payroll finance 204,610 — 204,610 227,452 — 227,452 Warehouse lending 1,022,811 — 1,022,811 782,646 — 782,646 Factored receivables 263,033 — 263,033 258,383 — 258,383 Equipment financing 930,883 404,834 1,335,717 913,751 301,291 1,215,042 Public sector finance 896,233 — 896,233 860,746 — 860,746 Total C&I 6,498,152 767,035 7,265,187 6,157,044 376,342 6,533,386 Commercial mortgage: CRE 4,391,136 431,785 4,822,921 4,154,956 487,461 4,642,417 Multi-family 1,554,913 3,138,179 4,693,092 1,527,619 3,236,505 4,764,124 ADC 290,875 — 290,875 267,754 — 267,754 Total commercial mortgage 6,236,924 3,569,964 9,806,888 5,950,329 3,723,966 9,674,295 Total commercial 12,735,076 4,336,999 17,072,075 12,107,373 4,100,308 16,207,681 Residential mortgage 571,594 1,977,690 2,549,284 621,471 2,083,755 2,705,226 Consumer 146,755 140,359 287,114 153,811 151,812 305,623 Total portfolio loans 13,453,425 6,455,048 19,908,473 12,882,655 6,335,875 19,218,530 Allowance for loan losses (98,960 ) — (98,960 ) (95,677 ) — (95,677 ) Total portfolio loans, net $ 13,354,465 $ 6,455,048 $ 19,809,513 $ 12,786,978 $ 6,335,875 $ 19,122,853 Acquired loans at March 31, 2019 and December 31, 2018 include loans that were acquired in the following transactions: the commercial loan portfolio acquired from Woodforest National Bank; the Advantage Funding Acquisition; the merger with Astoria Financial Corporation (“Astoria”) (the “Astoria Merger”); the merger with Hudson Valley Holding Corp. (the “HVB Merger”), and the the merger between Provident New York Bancorp and legacy Sterling Bancorp (the “Provident Merger”). Under our credit administration and accounting policies, once a loan relationship reaches maturity and is re-underwritten, the loan is no longer considered an acquired loan and is included in originated loans. In addition, acquired performing loans that were subsequently subject to a credit evaluation, such as after designation as criticized or classified or placed on non-accrual since the acquisition date, are also included in originated loans. Consistent with our credit and accounting policies discussed above, at March 31, 2019 , there were $1,237,567 of loans with an allowance for loan loss reserve of $9,448 that were originally considered acquired loans but have since migrated to the originated loans portfolio as they have reached maturity, were re-underwritten, have been designated as criticized or classified or have been placed on non-accrual since the acquisition date. At December 31, 2018 , there were $1,365,682 of loans with an allowance for loan loss reserve of $9,607 that were originally considered acquired loans but have since migrated to the originated loans portfolio as they have reached maturity, were re-underwritten, have been designated criticized or classified or have been placed on non-accrual since the acquisition date. Total portfolio loans include net deferred loan origination fees of $9,453 and $5,581 at March 31, 2019 and December 31, 2018 , respectively. Portfolio loans subject to purchase accounting adjustments are shown net of discounts on acquired loans, which were $115,290 at March 31, 2019 and $117,222 at December 31, 2018 . At March 31, 2019 and December 31, 2018 , the Bank pledged residential mortgage and commercial real estate loans of $7,556,051 and $8,526,247 , respectively, to the FHLB as collateral for certain borrowing arrangements. See Note 8. “Borrowings”. The following tables set forth the amounts and status of our loans, troubled debt restructurings (“TDRs”) and non-performing loans at March 31, 2019 and December 31, 2018 : Originated loans: March 31, 2019 Current 30-59 60-89 90+ Non- Total Traditional C&I $ 2,344,556 $ 3,541 $ 36 $ 2,084 $ 36,767 $ 2,386,984 Asset-based lending 791,261 — — — 2,337 793,598 Payroll finance 203,915 — — — 695 204,610 Warehouse lending 1,022,811 — — — — 1,022,811 Factored receivables 263,033 — — — — 263,033 Equipment financing 901,695 8,772 5,172 129 15,115 930,883 Public sector finance 896,233 — — — — 896,233 CRE 4,356,172 3,711 4,785 — 26,468 4,391,136 Multi-family 1,550,317 141 — — 4,455 1,554,913 ADC 287,088 — 2,563 790 434 290,875 Residential mortgage 540,028 466 322 — 30,778 571,594 Consumer 136,782 501 410 214 8,848 146,755 Total loans $ 13,293,891 $ 17,132 $ 13,288 $ 3,217 $ 125,897 $ 13,453,425 Total TDRs included above $ 29,320 $ — $ 57 $ 214 $ 32,709 $ 62,300 Non-performing loans: Loans 90+ days past due and still accruing $ 3,217 Non-accrual loans 125,897 Total originated non-performing loans $ 129,114 December 31, 2018 Current 30-59 60-89 90+ Non- Total Traditional C&I $ 2,266,947 $ 5,747 $ 6,139 $ — $ 42,298 $ 2,321,131 Asset-based lending 789,654 — — — 3,281 792,935 Payroll finance 226,571 — — — 881 227,452 Warehouse lending 782,646 — — — — 782,646 Factored receivables 258,383 — — — — 258,383 Equipment financing 879,468 20,466 1,587 9 12,221 913,751 Public sector finance 860,746 — — — — 860,746 CRE 4,118,134 8,054 — 799 27,969 4,154,956 Multi-family 1,524,914 1,014 — — 1,691 1,527,619 ADC 267,090 230 — 434 — 267,754 Residential mortgage 592,563 1,934 897 264 25,813 621,471 Consumer 143,510 1,720 1,232 271 7,078 153,811 Total loans $ 12,710,626 $ 39,165 $ 9,855 $ 1,777 $ 121,232 $ 12,882,655 Total TDRs included above $ 34,892 $ 215 $ 181 $ 650 $ 38,947 $ 74,885 Non-performing loans: Loans 90+ days past due and still accruing $ 1,777 Non-accrual loans 121,232 Total originated non-performing loans $ 123,009 Acquired loans: March 31, 2019 Current 30-59 60-89 90+ Non- Total Traditional C&I $ 69,384 $ 243 $ 600 $ — $ — $ 70,227 Asset-based lending 291,974 — — — — 291,974 Equipment financing 399,407 5,427 — — — 404,834 CRE 417,344 4,602 6,174 — 3,665 431,785 Multi-family 3,135,508 1,340 — — 1,331 3,138,179 Residential mortgage 1,930,942 9,050 4,681 325 32,692 1,977,690 Consumer 135,348 1,014 709 127 3,161 140,359 Total loans $ 6,379,907 $ 21,676 $ 12,164 $ 452 $ 40,849 $ 6,455,048 Total TDRs included above $ — $ — $ — $ — $ — $ — Non-performing loans: Loans 90+ days past due and still accruing $ 452 Non-accrual loans 40,849 Total acquired non-performing loans $ 41,301 December 31, 2018 Current 30-59 days past due 60-89 days past due 90+ days past due Non- accrual Total Traditional C&I $ 69,690 $ 5,256 $ 105 $ — $ — $ 75,051 Equipment financing 288,447 8,659 3,998 187 — 301,291 CRE 481,583 377 — 458 5,043 487,461 Multi-family 3,233,779 1,736 — — 990 3,236,505 Residential mortgage 2,022,340 18,734 6,513 — 36,168 2,083,755 Consumer 146,042 1,852 951 — 2,967 151,812 Total loans $ 6,241,881 $ 36,614 $ 11,567 $ 645 $ 45,168 $ 6,335,875 Total TDRs included above $ — $ — $ — $ — $ — $ — Non-performing loans: Loans 90+ days past due and still accruing $ 645 Non-accrual loans 45,168 Total acquired non-performing loans $ 45,813 The following table provides additional analysis of our non-accrual loans at March 31, 2019 and December 31, 2018 : March 31, 2019 December 31, 2018 Recorded investment non-accrual loans Recorded investment PCI non-accrual loans Recorded investment total non-accrual loans Unpaid principal balance non-accrual loans Recorded investment non-accrual loans Recorded investment PCI non-accrual loans Recorded investment total non-accrual loans Unpaid principal balance non-accrual loans Traditional C&I $ 36,094 $ 673 $ 36,767 $ 49,637 $ 41,625 $ 673 $ 42,298 $ 50,651 Asset-based lending 2,337 — 2,337 2,822 3,281 — 3,281 3,859 Payroll finance 695 — 695 695 881 — 881 881 Equipment financing 15,115 — 15,115 20,064 12,221 — 12,221 15,744 Commercial real estate 22,305 7,828 30,133 36,539 23,675 9,337 33,012 39,440 Multi-family 3,574 2,212 5,786 6,033 482 2,199 2,681 2,920 ADC — 434 434 434 — — — — Residential mortgage 29,636 33,834 63,470 73,192 24,339 37,642 61,981 72,706 Consumer 8,031 3,978 12,009 14,114 6,576 3,469 10,045 12,170 Total $ 117,787 $ 48,959 $ 166,746 $ 203,530 $ 113,080 $ 53,320 $ 166,400 $ 198,371 There were no non-accrual warehouse lending, factored receivables or public sector finance loans at March 31, 2019 . There were no non-accrual ADC, warehouse lending, factored receivables or public sector finance loans at December 31, 2018 . When the ultimate collectability of the total principal of an impaired loan is in doubt and the loan is on non-accrual status, all payments are applied to principal under the cost recovery method. When the ultimate collectability of the total principal of an impaired loan is not in doubt and the loan is on non-accrual status, contractual interest is credited to interest income when received, under the cash basis method. At March 31, 2019 and December 31, 2018 , the recorded investment of residential mortgage loans that were in the process of foreclosure was $45,696 and $48,107 , respectively, which is included in non-accrual residential mortgage loans above. The following table sets forth loans evaluated for impairment by segment and the allowance evaluated by segment at March 31, 2019 : Loans evaluated by segment Allowance evaluated by segment Individually evaluated for impairment Collectively evaluated for impairment PCI loans (1) Total loans Individually evaluated for impairment Collectively evaluated for impairment Total allowance for loan losses Traditional C&I $ 40,807 $ 2,409,365 $ 7,039 $ 2,457,211 $ — $ 17,936 $ 17,936 Asset-based lending 2,307 1,077,672 5,593 1,085,572 — 8,573 8,573 Payroll finance — 204,610 — 204,610 — 2,100 2,100 Warehouse lending — 1,022,811 — 1,022,811 — 693 693 Factored receivables — 263,033 — 263,033 — 1,092 1,092 Equipment financing 3,722 1,324,338 7,657 1,335,717 — 14,326 14,326 Public sector finance — 896,233 — 896,233 — 1,134 1,134 Commercial real estate 29,346 4,770,876 22,699 4,822,921 — 33,087 33,087 Multi-family 4,373 4,682,367 6,352 4,693,092 — 8,659 8,659 ADC 789 290,086 — 290,875 — 1,912 1,912 Residential mortgage 4,629 2,460,592 84,063 2,549,284 — 6,925 6,925 Consumer 6,400 272,828 7,886 287,114 — 2,523 2,523 Total portfolio loans $ 92,373 $ 19,674,811 $ 141,289 $ 19,908,473 $ — $ 98,960 $ 98,960 (1) We acquired loans for which there was, at acquisition, both evidence of deterioration of credit quality since origination and the probability, at acquisition, that all contractually required payments would not be collected. These loans are classified as purchased credit impaired loans (“PCI loans”). The following table sets forth loans evaluated for impairment by segment and the allowance evaluated by segment at December 31, 2018 : Loans evaluated by segment Allowance evaluated by segment Individually evaluated for impairment Collectively evaluated for impairment PCI loans Total loans Individually evaluated for impairment Collectively evaluated for impairment Total allowance for loan losses Traditional C&I $ 48,735 $ 2,338,432 $ 9,015 $ 2,396,182 $ — $ 14,201 $ 14,201 Asset-based lending 3,281 789,654 — 792,935 — 7,979 7,979 Payroll finance — 227,452 — 227,452 — 2,738 2,738 Warehouse lending — 782,646 — 782,646 — 2,800 2,800 Factored receivables — 258,383 — 258,383 — 1,064 1,064 Equipment financing 3,577 1,211,465 — 1,215,042 — 12,450 12,450 Public sector finance — 860,746 — 860,746 — 1,739 1,739 Commercial real estate 33,284 4,581,911 27,222 4,642,417 — 32,285 32,285 Multi-family 1,662 4,754,912 7,550 4,764,124 — 8,355 8,355 ADC — 267,754 — 267,754 — 1,769 1,769 Residential mortgage 3,210 2,614,046 87,970 2,705,226 — 7,454 7,454 Consumer 7,249 290,336 8,038 305,623 — 2,843 2,843 Total portfolio loans $ 100,998 $ 18,977,737 $ 139,795 $ 19,218,530 $ — $ 95,677 $ 95,677 Management considers a loan to be impaired when, based on current information and events, it is determined that we will not be able to collect all amounts due according to the loan contract, including scheduled interest payments. Evaluation of impairment is generally treated the same across all classes of loans on a loan-by-loan basis. Generally loans of $750 or less are evaluated for impairment on a homogeneous pool basis. When management identifies a loan as impaired, the impairment is measured based on the present value of expected future cash flows, discounted at the loan’s effective interest rate, except when the sole remaining source of repayment of the loan is the operation or liquidation of the collateral. In these cases, management uses the current fair value of the collateral, less selling costs when foreclosure or liquidation is probable, instead of discounted cash flows. If management determines that the value of the impaired loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs and unamortized premium or discount), impairment is generally recognized through a charge-off to the allowance for loan losses. The following table presents the changes in the balance of the accretable yield discount for PCI loans for the three months ended March 31, 2019 and 2018 : For the three months ended March 31, 2019 2018 Balance at beginning of period $ 16,932 $ 45,582 Accretion of income (2,111 ) (3,029 ) Charge-offs (508 ) (342 ) Reclassification (to) from non-accretable difference 1,534 410 Other, adjustments — (15,072 ) Balance at end of period $ 15,847 $ 27,549 Income is not recognized on PCI loans unless we can reasonably estimate the cash flows that are expected to be collected over the life of the loan. The balance of PCI loans that were treated under the cost recovery method was $3,172 and $5,363 at March 31, 2019 and December 31, 2018 , respectively. The following table presents loans individually evaluated for impairment, excluding PCI loans, by segment of loans at March 31, 2019 and December 31, 2018 : March 31, 2019 December 31, 2018 Unpaid principal balance Recorded investment Unpaid principal balance Recorded investment Loans with no related allowance recorded: Traditional C&I $ 50,565 $ 40,807 $ 64,653 $ 48,735 Asset-based lending 2,792 2,307 3,859 3,281 Equipment financing 3,974 3,722 3,577 3,577 Commercial real estate 34,047 29,346 43,119 33,284 Multi-family 4,705 4,373 2,341 1,662 ADC 789 789 — — Residential mortgage 4,784 4,629 3,430 3,210 Consumer 6,400 6,400 7,249 7,249 Total $ 108,056 $ 92,373 $ 128,228 $ 100,998 At March 31, 2019 and December 31, 2018 , there were no payroll finance, warehouse lending, factored receivables or public sector finance loans that were individually evaluated for impairment. Our policy generally requires a charge-off of the difference between the present value of the cash flows or the net collateral value of the collateral securing the loan and our recorded investment. As a result, there were no impaired loans with an allowance recorded at March 31, 2019 or December 31, 2018 . The following table presents the average recorded investment and interest income recognized related to loans individually evaluated for impairment by segment for the three months ended March 31, 2019 and March 31, 2018 : For the three months ended March 31, 2019 March 31, 2018 QTD average recorded investment Interest income recognized Cash-basis interest income recognized QTD average recorded investment Interest income recognized Cash-basis interest income recognized Loans with no related allowance recorded: Traditional C&I $ 41,835 $ 49 $ — $ 39,928 $ 140 $ — Asset-based lending 1,864 — — — — — Equipment financing 2,590 — — 1,411 — — Commercial real estate 28,586 172 — 12,190 44 — Multi-family 3,224 16 — 2,001 16 — ADC 395 13 — 4,138 3 — Residential mortgage 2,502 — — 2,599 — — Consumer 5,191 — — 3,127 — — Total $ 86,187 $ 250 $ — $ 65,394 $ 203 $ — For the three months ended March 31, 2019 and 2018 , there were no payroll finance, warehouse lending, factored receivables or public sector finance loans that were impaired, and there was no cash-basis interest income recognized. Troubled Debt Restructurings (“TDRs”) The following tables set forth the amounts and past due status of our TDRs at March 31, 2019 and December 31, 2018 : March 31, 2019 Current loans 30-59 days past due 60-89 days past due 90+ days past due Non- accrual Total Traditional C&I $ 5,935 $ — $ — $ — $ 19,705 $ 25,640 Asset-based lending — — — — 1,294 1,294 Equipment financing 1,688 — — — 2,288 3,976 Commercial real estate 8,859 — — — 6,516 15,375 ADC — — — — 434 434 Residential mortgage 6,818 — — — 2,195 9,013 Consumer 6,020 — 57 214 277 6,568 Total $ 29,320 $ — $ 57 $ 214 $ 32,709 $ 62,300 There were no payroll finance, warehouse lending, factored receivables, public sector finance or multi-family loans that were TDRs for the period presented above. December 31, 2018 Current loans 30-59 days past due 60-89 days past due 90+ days past due Non- accrual Total Traditional C&I $ 9,011 $ — $ — $ — $ 25,672 $ 34,683 Asset-based lending — — — — 1,276 1,276 Equipment financing 1,905 — 9 — 2,367 4,281 Commercial real estate 11,071 — — — 7,112 18,183 ADC — — — 434 — 434 Residential mortgage 5,688 — 103 — 2,312 8,103 Consumer 7,217 215 69 216 208 7,925 Total $ 34,892 $ 215 $ 181 $ 650 $ 38,947 $ 74,885 There were no payroll finance, warehouse lending, factored receivables, public sector finance or multi-family loans that were TDRs for the period presented above. We did not have any outstanding commitments to lend additional amounts to customers with loans classified as TDRs as of March 31, 2019 or December 31, 2018 . The following table presents loans by segment modified as TDRs that occurred during the first three months of 2019 and 2018 : March 31, 2019 March 31, 2018 Recorded investment Recorded investment Number Pre- modification Post- modification Number Pre- modification Post- modification Traditional C&I — $ — $ — 1 $ 12,766 $ 12,766 Equipment financing 1 5,026 5,026 1 670 670 Residential mortgage 2 895 895 5 808 603 Total TDRs 3 $ 5,921 $ 5,921 7 $ 14,244 $ 14,039 There were no asset-based lending, payroll finance, warehouse lending, factored receivables, public sector finance, commercial real estate, multi-family or consumer loans modified as TDRs during the first three months of 2019 or 2018 . During the three months ended March 31, 2019 and 2018 , except for certain TDRs that are included in non-accrual loans, there were no TDRs that experienced a payment default within the twelve months following the modification. A payment default is defined as missing three consecutive monthly payments or being over 90 days past due on a scheduled payment. TDRs are formal loan modifications which consist mainly of an extension of the loan maturity date, converting a loan to interest only for some defined period of time, deferral of interest payments, waiver of certain covenants, or reducing collateral requirements or interest rates. TDRs during the periods presented above did not significantly impact the determination of the allowance for loan losses.

Allowance for Loan Losses

Allowance for Loan Losses	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Allowance for Loan Losses	Allowance for Loan Losses Activity in the allowance for loan losses for the three months ended March 31, 2019 and 2018 is summarized below: For the three months ended March 31, 2019 Beginning balance Charge-offs Recoveries Net charge-offs Provision / (credit) Ending balance Traditional C&I $ 14,201 $ (4,839 ) $ 139 $ (4,700 ) $ 8,435 $ 17,936 Asset-based lending 7,979 — — — 594 8,573 Payroll finance 2,738 — 1 1 (639 ) 2,100 Warehouse lending 2,800 — — — (2,107 ) 693 Factored receivables 1,064 (32 ) 121 89 (61 ) 1,092 Equipment financing 12,450 (1,249 ) 131 (1,118 ) 2,994 14,326 Public sector finance 1,739 — — — (605 ) 1,134 Commercial real estate 32,285 (17 ) 9 (8 ) 810 33,087 Multi-family 8,355 — 103 103 201 8,659 ADC 1,769 — — — 143 1,912 Residential mortgage 7,454 (1,085 ) 1 (1,084 ) 555 6,925 Consumer 2,843 (443 ) 243 (200 ) (120 ) 2,523 Total allowance for loan losses $ 95,677 $ (7,665 ) $ 748 $ (6,917 ) $ 10,200 $ 98,960 Annualized net charge-offs to average loans outstanding: 0.14 % For the three months ended March 31, 2018 Beginning balance Charge-offs Recoveries Net charge-offs Provision / (credit) Ending balance Traditional C&I $ 19,072 $ (3,572 ) $ 214 $ (3,358 ) $ 3,696 $ 19,410 Asset-based lending 6,625 — — — (298 ) 6,327 Payroll finance 1,565 — 22 22 (112 ) 1,475 Warehouse lending 3,705 — — — (597 ) 3,108 Factored receivables 1,395 (3 ) 3 — (226 ) 1,169 Equipment financing 4,862 (4,199 ) 72 (4,127 ) 5,837 6,572 Public sector finance 1,797 — — — 109 1,906 Commercial real estate 24,945 (1,353 ) 16 (1,337 ) 614 24,222 Multi-family 3,261 — 3 3 3,483 6,747 ADC 1,680 — — — 352 2,032 Residential mortgage 5,819 (39 ) 15 (24 ) 224 6,019 Consumer 3,181 (125 ) 131 6 (82 ) 3,105 Total allowance for loan losses $ 77,907 $ (9,291 ) $ 476 $ (8,815 ) $ 13,000 $ 82,092 Annualized net charge-offs to average loans outstanding: 0.18 % Credit Quality Indicators As part of the ongoing monitoring of the credit quality of our loan portfolio, management tracks certain credit quality indicators, including trends related to (i) the weighted-average risk grade of commercial loans; (ii) the level of classified commercial loans; (iii) the delinquency status of residential mortgage and consumer loans, including home equity lines of credit (“HELOC”) and other consumer loans; (iv) net charge-offs; (v) non-performing loans (see details above); and (vi) the general economic conditions in the greater New York metropolitan region. We analyze loans individually by classifying the loans by credit risk, except residential mortgage loans, HELOC and other consumer loans, which are evaluated on a homogeneous pool basis unless the loan balance is greater than $750 . This analysis is performed at least quarterly on all graded 7-Special Mention and lower loans. We use the following definitions of risk ratings: 1 and 2 - These grades include loans that are secured by cash, marketable securities or cash surrender value of life insurance policies. 3 - This grade includes loans to borrowers with strong earnings and cash flow that have the ability to service debt. The borrower’s assets and liabilities are generally well-matched and are above average quality. The borrower has ready access to multiple sources of funding, including alternatives such as term loans, private equity placements or trade credit. 4 - This grade includes loans to borrowers with above average cash flow, adequate earnings and debt service coverage ratios. The borrower generates discretionary cash flow, assets and liabilities are reasonably matched, and the borrower has access to other sources of debt funding or additional trade credit at market rates. 5 - This grade includes loans to borrowers with adequate earnings and cash flow and reasonable debt service coverage ratios. Overall leverage is acceptable and there is average reliance upon trade credit. Management has a reasonable amount of experience and depth, and owners are willing to invest available outside capital, as necessary. 6 - This grade includes loans to borrowers where there is evidence of some strain, earnings are inconsistent and volatile, and the borrowers’ outlook is uncertain. Generally, such borrowers have higher leverage than those with a better risk rating. These borrowers typically have limited access to alternative sources of bank debt and may be dependent upon debt funding for working capital support. 7 - Special Mention (OCC definition) - Other Assets Especially Mentioned are loans that have potential weaknesses which may, if not reversed or corrected, weaken the asset or inadequately protect the Bank’s credit position at some future date. Such assets constitute an undue and unwarranted credit risk but not to the point of justifying a classification of “Substandard.” The credit risk may be relatively minor yet constitute an unwarranted risk in light of the circumstances surrounding a specific asset. 8 - Substandard (OCC definition) - These loans are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified must have a well-defined weakness that jeopardizes the liquidation of the debt. They are characterized by the distinct possibility that the Bank will sustain some losses if the deficiencies are not corrected. Loss potential, while existing in the aggregate amount of substandard assets, does not have to exist in individual assets classified as substandard. 9 - Doubtful (OCC definition) - These loans have all the weakness inherent in one classified as “Substandard” with the added characteristics that the weakness makes collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. The possibility of loss is extremely high, but, because of certain important and reasonably specific pending factors which may work to the advantage and strengthening of the asset, its classification as an estimated loss is deferred until its more exact status may be determined. Pending factors may include a proposed merger, acquisition, liquidating procedures, capital injection, perfecting liens or additional collateral and refinancing plans. 10 - Loss (OCC definition) - These loans are charged-off because they are determined to be uncollectible and unbankable assets. This classification does not indicate that the asset has no absolute recovery or salvage value, but rather it is not practical or desirable to defer writing-off this asset even though partial recovery may be effected in the future. Losses should be taken in the period in which they are determined to be uncollectible. Loans that are risk-rated 1 through 6 as defined above are considered to be pass-rated loans. As of March 31, 2019 , the risk category of gross loans by segment was as follows: Special Mention Substandard Originated Acquired Total Originated Acquired Total March 31, 2019 Traditional C&I $ 7,510 $ 82 $ 7,592 $ 53,421 $ 122 $ 53,543 Asset-based lending 13,228 23,007 36,235 20,164 6,617 26,781 Payroll finance — — — 17,533 — 17,533 Equipment financing 14,231 13,031 27,262 23,538 — 23,538 CRE 10,929 9,940 20,869 43,123 5,559 48,682 Multi-family 22,366 7,598 29,964 35,656 1,793 37,449 ADC — — — 1,223 — 1,223 Residential mortgage 3,212 1,790 5,002 34,427 33,017 67,444 Consumer 934 196 1,130 9,340 3,161 12,501 Total $ 72,410 $ 55,644 $ 128,054 $ 238,425 $ 50,269 $ 288,694 At March 31, 2019 , there were $45,952 of special mention loans and $116,062 of substandard loans that were originally considered acquired loans but were migrated to the originated loans portfolio as they have been designated criticized or classified status or have been placed on non-accrual since the acquisition date. As of December 31, 2018 , the risk category of gross loans by segment was as follows: Special Mention Substandard Originated Acquired Total Originated Acquired Total Traditional C&I $ 12,003 $ 99 $ 12,102 $ 51,903 $ 128 $ 52,031 Asset-based lending 14,033 — 14,033 21,865 — 21,865 Payroll finance 9,682 — 9,682 17,766 — 17,766 Factored receivables — — — 508 — 508 Equipment financing 9,966 — 9,966 21,256 — 21,256 CRE 3,852 10,160 14,012 43,336 8,126 51,462 Multi-family 33,321 10,490 43,811 20,812 3,542 24,354 ADC — — — 434 — 434 Residential mortgage 5,179 2,231 7,410 29,475 36,431 65,906 Consumer 1,919 245 2,164 7,223 3,242 10,465 Total $ 89,955 $ 23,225 $ 113,180 $ 214,578 $ 51,469 $ 266,047 At December 31, 2018 , there were $51,282 of special mention loans and $95,575 of substandard loans that were originally considered acquired loans but were migrated to the originated loans portfolio as they have been designated criticized or classified status or have been placed on non-accrual since the acquisition date. At March 31, 2019 there were no loans rated doubtful. At December 31, 2018 there were $59 of originated consumer loans rated doubtful. At March 31, 2019 and December 31, 2018 there were no mortgage warehouse or public sector finance loans that were rated special mention or substandard. There were no loans rated loss at March 31, 2019 or December 31, 2018 .

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	3 Months Ended
	Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets The balance of goodwill and other intangible assets for the periods presented were as follows: March 31, December 31, 2019 2018 Goodwill $ 1,657,814 $ 1,613,033 Other intangible assets: Core deposits $ 99,678 $ 104,263 Customer lists 4,541 4,740 Non-compete agreements — 42 Trade name 20,500 20,500 Total $ 124,719 $ 129,545 The increase in goodwill at March 31, 2019 compared to December 31, 2018 was due to the commercial loan portfolio and origination platform acquired from Woodforest National Bank in February 2019. See Note 2. “Acquisitions” for additional information. The decrease in other intangible assets at March 31, 2019 compared to December 31, 2018 was due to amortization of intangibles. The estimated aggregate future amortization expense for intangible assets remaining as of March 31, 2019 was as follows: Amortization expense Remainder of 2019 $ 14,354 2020 16,800 2021 15,104 2022 13,703 2023 12,322 2024 10,448 Thereafter 21,488 Total $ 104,219

Deposits

Deposits	3 Months Ended
	Mar. 31, 2019
Deposits [Abstract]
Deposits	Deposits Deposit balances at March 31, 2019 and December 31, 2018 were as follows: March 31, December 31, 2019 2018 Non-interest bearing demand $ 4,321,310 $ 4,241,923 Interest bearing demand 4,400,725 4,207,392 Savings 2,358,905 2,382,520 Money market 7,611,522 7,905,382 Certificates of deposit 2,533,177 2,476,931 Total deposits $ 21,225,639 $ 21,214,148 Total municipal deposits, which are included in the deposit balances above, were $2,027,563 and $1,751,670 at March 31, 2019 and December 31, 2018 , respectively. See Note 3. “Securities” for the aggregate amount of securities that were pledged as collateral for municipal deposits and other purposes. Brokered deposits at March 31, 2019 and December 31, 2018 were as follows: March 31, December 31, 2019 2018 Interest bearing demand $ 15,320 $ 23,742 Money market 869,175 983,889 CDARs (1) and ICS (2) one way 150,206 150,192 Total brokered deposits $ 1,034,701 $ 1,157,823 1 CDARs are deposits generated through the certificate of deposit account registry service. 2 ICS are deposits generated through the insured cash sweep program.

Borrowings

Borrowings	3 Months Ended
	Mar. 31, 2019
Debt Instruments [Abstract]
Borrowings	Borrowings Our borrowings and weighted average interest rates were as follows for the periods presented: March 31, December 31, 2019 2018 Amount Rate Amount Rate By type of borrowing: FHLB borrowings $ 3,259,507 2.38 % $ 4,838,772 2.40 % Repurchase agreements 27,020 1.22 21,338 1.20 3.50% Senior Notes 173,952 3.19 181,130 3.19 Subordinated Notes 173,001 5.45 172,943 5.45 Total borrowings $ 3,633,480 2.56 % $ 5,214,183 2.52 % By remaining period to maturity: Less than one year $ 2,535,225 2.46 % $ 3,958,635 2.48 % One to two years 824,912 2.30 831,889 2.28 Two to three years 100,342 2.15 250,716 2.04 Greater than five years 173,001 5.45 172,943 5.45 Total borrowings $ 3,633,480 2.56 % $ 5,214,183 2.52 % FHLB borrowings. As a member of the FHLB, the Bank may borrow up to a discounted percentage of the amount of eligible mortgages and securities that have been pledged as collateral under a blanket security agreement. As of March 31, 2019 and December 31, 2018 , the Bank had total residential mortgage and commercial real estate loans pledged after discount of $7,556,051 and $8,526,247 , respectively. In addition to the pledged mortgages, the Bank had also pledged securities to secure borrowings, which are disclosed in Note 3. “Securities.” As of March 31, 2019 , the Bank had unused borrowing capacity at the FHLB of $4,435,364 and may increase such borrowing capacity by pledging securities not required to be pledged for other purposes with a collateral value of approximately $3,048,586 . Repurchase agreements. The Bank enters into sales of securities under agreements to repurchase. These repurchase agreements facilitate the needs of our customers and a portion of our secured short-term funding needs. Securities sold under agreements to repurchase at March 31, 2019 and December 31, 2018 are secured short-term borrowings that mature in one to 45 days and are generally renewed on a continuous basis. Repurchase agreements are stated at the amount of cash received in connection with these transactions. The securities pledged under these repurchase agreements fluctuate in value due to market conditions. The Bank is obligated to promptly transfer additional securities if the market value of the securities falls below the repurchase agreement price. Securities pledged as collateral under repurchase agreements are maintained with our safekeeping agents. 3.50% Senior Notes. On October 2, 2017 , in connection with the Astoria Merger, we assumed $ 200,000 principal amount of 3.50% fixed rate senior notes that mature on June 8, 2020 (the “ 3.50% Senior Notes”). The 3.50% Senior Notes were issued by Astoria on June 8, 2017 through a public offering. We recorded the 3.50% Senior Notes at an estimated fair value of 100.76% on the acquisition date, which was based on the quoted market value. The fair value adjustment, with a remaining balance of $ 579 at March 31, 2019 , is being amortized over the remaining maturity using a level-yield methodology, which results in an effective cost of 3.19% . During the three months ended March 31, 2019 , we repurchased $7,000 of the 3.50% Senior Notes and recorded a gain of $46 . Subordinated Notes . On March 29, 2016 , the Bank issued $110,000 principal amount of 5.25% fixed-to-floating rate subordinated notes (the “Subordinated Notes”) through a private placement at a discount of 1.25% . The cost of issuance was $500 . On September 2, 2016, the Bank reopened the Subordinated Notes offering and issued an additional $65,000 principal amount of Subordinated Notes. The Subordinated Notes issued September 2, 2016 are fully fungible with, rank equally in right of payment with, and form a single series with the Subordinated Notes issued in March 2016. The Subordinated Notes issued in September 2016 were issued to the purchasers at a premium of 0.50% and an underwriters discount of 1.25% . The cost of issuance was $275 . At March 31, 2019 , the net unamortized discount of all Subordinated Notes was $1,999 , which will be accreted to interest expense over the life of the Subordinated Notes, resulting in an effective yield of 5.45% . Interest is due semi-annually in arrears on April 1 and October 1 of each year, until April 1, 2021 . From and including April 1, 2021 , the Subordinated Notes will bear interest at a floating rate per annum equal to three-month LIBOR plus 3.937% , payable quarterly on January 1 , April 1 , July 1 and October 1 of each year, beginning on July 1, 2021 , through maturity on April 1, 2026 or earlier redemption. The Subordinated Notes are redeemable by the Bank, in whole or in part, on April 1, 2021 and each interest payment date thereafter. The Subordinated Notes are redeemable in whole at any time upon the occurrence of certain specified events. The Subordinated Notes are unsecured, subordinated obligations of the Bank and are subordinated in right of payment to all of the Bank’s existing and future senior indebtedness, including claims of depositors and general creditors. The Subordinated Notes qualify as Tier 2 capital for regulatory purposes. See Note 16. “Stockholders’ Equity” for additional information. Revolving line of credit. Effective September 2, 2018 , we renewed our $35,000 revolving line of credit facility (the “Credit Facility”). The Credit Facility, which is with another financial institution, matures on September 2, 2019 . The balance was zero at March 31, 2019 and December 31, 2018 . The use of proceeds are for general corporate purposes. The Credit Facility and accrued interest is payable at maturity, and we are required to maintain a zero balance for at least 30 days during its term. Loans under the Credit Facility bear interest at one-month LIBOR plus 1.25% . Under the terms of the Credit Facility, we must maintain certain ratios related to capital, non-performing assets to capital, reserves to non-performing loans and debt service coverage. We were in compliance with all requirements of the Credit Facility at March 31, 2019 .

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases	Leases At March 31, 2019 , operating lease right-of-use assets of $122,084 and operating lease liabilities of $128,257 were included in other assets and other liabilities, respectively, on our consolidated balance sheet. We do not have any significant finance leases in which we are the lessee. We have operating leases for financial centers, back-office operations locations, business development offices, information technology data centers and equipment. Our leases have remaining terms of one to 16 years, some of which include options to extend the lease for up to 10 years and some of which include options to terminate the lease within two years. Sub-leases are not material to our financial statements and were not considered in the right-of-use asset or lease liability. The components of lease expense were as follows: March 31, 2019 Operating lease expense $ 4,943 Sub-lease income (604 ) Net lease expense $ 4,339 Rent expense for the three months ended March 31, 2018, prior to the adoption of ASU 2016-02, was $4,406 . Maturities of lease liabilities were as follows: Remainder of 2019 $ 14,697 2020 19,379 2021 17,823 2022 16,109 2023 14,504 2024 12,703 2025 and thereafter 54,229 Total lease payments 149,444 Interest 21,187 Present value of lease liabilities $ 128,257 Lease Term and Discount Rate: March 31, 2019 Weighted average remaining lease term (years) 8.71 Weighted average remaining discount rate 3.25 %

Derivatives

Derivatives	3 Months Ended
	Mar. 31, 2019
Derivative Instruments and Hedges, Assets [Abstract]
Derivatives	Derivatives We have entered into certain interest rate swap contracts that are not designated as hedging instruments. These derivative contracts relate to transactions in which we enter into an interest rate swap with a customer while at the same time entering into an offsetting interest rate swap with another financial institution. In connection with each swap transaction, we agree to pay interest to the customer on a notional amount at a variable interest rate and receive interest from the customer on a similar notional amount at a fixed interest rate. At the same time, we agrees to pay another financial institution the same fixed interest rate on the same notional amount and receive the same variable interest rate on the same notional amount. The transaction allows our customers to effectively convert a variable rate loan to a fixed rate loan. Because we act as an intermediary for our customers, changes in the fair value of the underlying derivative contracts largely offset each other and do not materially impact results of operations. We have entered into interest rate swap contracts that are both over-the-counter, or OTC, and those that are exchanged on futures markets such as the Chicago Mercantile Exchange (“CME”). At March 31, 2019 and December 31, 2018 , the OTC derivatives are included in our financial statements at the gross fair value amount of the asset (included in other assets) and liability (included in other liabilities), which represents the change in the fair value of the contract since inception. The CME legally characterizes variation margin payments (a payment made based on changes in the fair value of the interest rate swap contracts) as a settlement, referred to as settled-to-market (“STM”). As a result, at March 31, 2019 and December 31, 2018 , the Company paid cash under STMs in the amounts of $19,224 and $5,214 , respectively, for the net fair value of its CME interest rate swap contracts with another financial institution. The variation margin payment may change daily, positively or negatively, based on the change in the fair value of the underlying interest rate swap contracts. We do not typically require our commercial customers to post cash or securities as collateral on its program of back-to-back swaps. However, certain language is written into the International Swaps and Derivatives Association agreement and loan documents where, in default situations, we are allowed to access collateral supporting the loan relationship to recover any losses suffered on the derivative asset or liability. Summary information as of March 31, 2019 and December 31, 2018 regarding these derivatives is presented below: Notional amount Average maturity (in years) Weighted average fixed rate Weighted average variable rate Fair value March 31, 2019 Included in other assets: Third-party interest rate swap $ 313,515 $ 898 Customer interest rate swap 990,356 32,496 Total $ 1,303,871 5.72 4.69 % 1 m Libor + 2.26% $ 33,394 Included in other liabilities: Third-party interest rate swap $ (990,356 ) $ (10,119 ) Customer interest rate swap (313,515 ) (4,051 ) Total $ (1,303,871 ) 5.72 4.69 % 1 m Libor + 2.26% $ (14,170 ) December 31, 2018 Included in other assets: Third-party interest rate swap $ 516,419 $ 1,963 Customer interest rate swap 556,934 16,252 Total $ 1,073,353 5.90 4.65 % 1 m Libor + 2.29% $ 18,215 Included in other liabilities: Third-party interest rate swap $ (556,934 ) $ (4,351 ) Customer interest rate swap (516,419 ) (8,650 ) Total $ (1,073,353 ) 5.90 4.65 % 1 m Libor + 2.29% $ (13,001 )

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Actual income tax expense differs from the tax computed based on pre-tax income and the applicable statutory federal tax rate for the following reasons: For the three months ended March 31, 2019 2018 Income before income tax expense $ 129,911 $ 128,328 Tax at federal statutory rate of 21% 27,281 26,948 State and local income taxes, net of federal tax benefit 6,690 6,059 Tax exempt interest, net of disallowed interest (5,253 ) (4,627 ) BOLI income (769 ) (763 ) Low income housing tax credits and other benefits (4,347 ) (2,125 ) Low income housing investment amortization expense 3,810 998 Equity-based stock compensation benefit (106 ) (379 ) FDIC insurance premium limitation 254 486 Other, net 914 2,859 Actual income tax expense $ 28,474 $ 29,456 Effective income tax rate 21.9 % 23.0 % Net deferred tax assets totaled $7,742 at March 31, 2019 and $53,990 at December 31, 2018 . The decline in net deferred tax assets at March 31, 2019 compared to December 31, 2018 was mainly due to the change in unrealized losses on available for sale securities. No valuation allowance was recorded against deferred tax assets as of those dates, based upon management’s consideration of historical and anticipated future pre-tax income, and the reversal periods for the items resulting in deferred tax assets and liabilities. There were no unrecognized tax benefits during any of the reported periods. Interest and/or penalties related to income taxes are reported as a component of other non-interest expense. Such amounts were not material during the reported periods. We are generally no longer subject to examination by federal, state and local taxing authorities for tax years prior to December 31, 2015.

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2019
Retirement Benefits [Abstract]
Stock-Based Compensation	Stock-Based Compensation We have one active stock-based compensation plan, as described below. Our stockholders approved the 2015 Omnibus Equity and Incentive Plan (the “2015 Plan”) on May 28, 2015. The 2015 Plan permits the grant of stock options, stock appreciation rights, restricted stock (both time-based and performance-based), restricted stock units, deferred stock and other stock-based awards. The total number of shares that may be awarded under the 2015 Plan is 2,800,000 shares plus the remaining shares available for grant under the stockholder approved 2014 Stock Incentive Plan as of the date of adoption of the 2015 Plan. At March 31, 2019 , there were an aggregate, 778,517 shares available for future grant under the 2015 Plan. Under the 2015 Plan, one share is deducted from the 2015 Plan for every share that is awarded and delivered under the 2015 Plan. Restricted stock awards are granted with a fair value equal to the market price of our common stock at the date of grant. Stock option awards are granted with a strike price that is equal to the market price of our common stock at the date of grant. The restricted stock awards generally vest in equal installments annually on the anniversary date of grant and have total vesting periods ranging from one to five years, while stock options have 10 -year contractual terms. The following table summarizes the activity in our stock-based compensation plan for the three months ended March 31, 2019 : Non-vested stock awards/stock units outstanding Stock options outstanding Shares available for grant Number of shares Weighted average grant date fair value Number of shares Weighted average exercise price Balance at January 1, 2019 2,318,950 1,333,514 $ 22.12 686,539 $ 11.20 Granted (1,501,511 ) 1,501,511 19.63 — — Stock awards vested (1) (70,353 ) (489,373 ) 19.43 — — Exercised — — — (3,893 ) 14.05 Forfeited 31,431 (31,431 ) 23.07 — — Canceled/expired — — — — — Balance at March 31, 2019 778,517 2,314,221 $ 21.06 682,646 $ 11.18 Exercisable at March 31, 2019 682,646 $ 11.18 (1) The 70,353 shares vested represents performance shares granted in February 2016 to certain executives with a three -year measurement period. These shares vested in the first quarter of 2019 at 150.0% of the target amount granted, which resulted in additional expense of $1,000 . The total intrinsic value of outstanding in-the-money stock options and outstanding in-the-money exercisable stock options was $ 5,086 at March 31, 2019 . We use an option pricing model to estimate the grant date fair value of stock options granted. There were no stock options granted during the three months ended March 31, 2019 or March 31, 2018 . Stock-based compensation expense is recognized ratably over the requisite service period for all awards. Stock-based compensation expense associated with stock options and non-vested stock awards and the related income tax benefit are presented below: For the three months ended March 31, 2019 2018 Stock options $ — $ 2 Non-vested stock awards/performance units 5,123 2,852 Total $ 5,123 $ 2,854 Income tax benefit 1,127 665 Proceeds from stock option exercises 55 329 Unrecognized stock-based compensation expense as of March 31, 2019 was as follows: March 31, 2019 Stock options $ — Non-vested stock awards/performance units 42,619 Total $ 42,619 The weighted average period over which unrecognized non-vested stock awards/performance units expense is expected to be recognized is 2.47 years .

Pension and Other Post-Retireme

Pension and Other Post-Retirement Benefits	3 Months Ended
	Mar. 31, 2019
Retirement Benefits [Abstract]
Pension and Other Post-Retirement Benefits	Pension and Other Post-Retirement Benefits Total pension and other post-retirement benefits expense is comprised of the following for the periods presented below: For the three months ended March 31, 2019 March 31, 2018 Pension Benefits Other Post Retirement Benefits Pension Benefits Other Post Retirement Benefits Service cost $ — $ 15 $ — $ 21 Interest cost 2,293 305 2,122 273 Expected return on plan assets (2,394 ) — (3,353 ) — Net amortization and deferral — (82 ) — — Net periodic pension and other post-retirement (benefit) expense $ (101 ) $ 238 $ (1,231 ) $ 294 Total net periodic pension and other post-retirement (benefit) expense is included as a component of other non-interest expense. Our pension benefit plans include all of the assets and liabilities of the Astoria Bank Pension Plan, the Astoria Excess and Supplemental Benefit Plans, the Astoria Directors’ Retirement Plan, the Greater New York Savings Bank Directors’ Retirement Plan and the Long Island Bancorp Directors’ Retirement Plan, which were assumed in the Astoria Merger. We have announced plans to terminate the Astoria Bank Pension Plan in 2019 and do not anticipate any additional contributions, or expect any assets to be returned from this plan. Our other post retirement benefit plans include the assumed Astoria Bank Retiree Health Care Plan and the Astoria Bank BOLI plan, along with other non-qualified Supplemental Executive Retirement Plans (“SERPs”) that provide certain directors, officers and executives with supplemental retirement benefits. We contributed $391 and $276 to fund pension and other post retirement benefits during the three months ended March 31, 2019 and 2018 , respectively. The Astoria Bank Pension Plan was overfunded by $13,747 and $13,608 at March 31, 2019 and December 31, 2018 , respectively, and such over funded amounts are included in other assets in our consolidated balance sheets. The remaining pension benefit plans and other post retirement benefit plans were underfunded by $35,153 and $35,278 at March 31, 2019 and December 31, 2018 , respectively, and such underfunded amounts are included in other liabilities in our consolidated balance sheets.

Non-Interest Income and Other N

Non-Interest Income and Other Non-Interest Expense	3 Months Ended
	Mar. 31, 2019
Other Income and Expenses [Abstract]
Non-Interest Income and Other Non-Interest Expense	Non-Interest Income and Other Non-Interest Expense (a) Non-Interest Income - Revenue from Contracts with Customers Our significant sources of non-interest income are presented on the face of the consolidated income statements. A description of our revenue streams follows: Deposit fees and service charges. We earn fees from our deposit customers mainly for transaction-based, account maintenance, and overdraft services. Transaction-based fees, which include services such as ATM use fees, stop payment charges, statement rendering, and ACH fees, are recognized at the time the transaction is executed as that is the point in time we fulfill the customer’s request. Account maintenance fees, which relate primarily to monthly maintenance, are earned over the course of a month, representing the period over which we satisfy the performance obligation. Overdraft fees are recognized at the point in time that the overdraft occurs. Service charges on deposits are withdrawn from the customer’s account balance. Accounts receivable management / factoring commissions and other fees. We earn these fees / commissions from our payroll finance and factoring businesses, as described below. Payroll finance. We provide financing and back office support services, which include preparation of payroll, payroll tax payments, billings and collections, for clients in the temporary staffing industry. Upon completion of the back office support services, and as payroll remittances are made on behalf of the client to fund their employee payroll, which typically occurs weekly, we recognize a portion of the total revenue generated as non-interest income. We collect invoices directly from the borrower’s customers, and retain the amounts billed for the temporary staffing services provided, and remit the remaining funds to the borrower net of amounts advanced, payroll taxes withheld, our fees, and subject to a reserve to offset potential uncollectible balances. Factored Receivables. We provide accounts receivable management services. The purchase of a client’s accounts receivable is traditionally known as “factoring” and results in payment by the client of a factoring fee. The factoring fee included in non-interest income represents compensation to us for the bookkeeping and collection services provided. The factoring fee, which is non-refundable, is recognized at the time the receivable is assigned to us. Other revenue associated with factored receivables includes wire fees, technology fees, field examination fees and UCC fees. All such fees are recognized as income upon receipt, which is when our obligations are provided to our customers. Investment management fees. We earn investment management fees from our contracts with customers to manage assets for investment, and / or to transact on their accounts. Advisory fees are primarily earned over time as we provide the contracted monthly or quarterly services and are generally assessed based on a tiered scale of the market value of assets under management at month end. Fees that are transaction based, including trade execution services, are recognized at the point in time that the transaction is executed, i.e., the trade date. Gains / Losses on sales of other real estate owned (“OREO”). We record a gain or loss from the sale of OREO when control of the property transfers to the buyer, which generally occurs at the time of an executed deed. When we finance the sale of OREO to the buyer, we assess whether the buyer is committed to perform its obligations under the contract and whether collectability of the transaction price is probable. Once these criteria are met, the OREO asset is derecognized and the gain or loss on sale is recorded upon the transfer of control of the property to the buyer. In determining the gain or loss on the sale, we may adjust the transaction price and related gain (loss) on sale if a significant financing component is present. Contract Balances. A contract asset balance occurs when an entity performs a service for a customer before the customer pays consideration (resulting in a contract receivable) or before payment is due (resulting in a contract asset). A contract liability balance is an entity’s obligation to transfer a service to a customer for which the entity has already received payment (or payment is due) from the customer. Our non-interest revenue streams are largely based on transactional activity, or standard month-end revenue accruals such as investment management fees based on period-end market values. Consideration is often received immediately or shortly after we satisfy our performance obligation and revenue is recognized. We do not typically enter into long-term revenue contracts with customers, and therefore, do not experience significant contract balances. As of March 31, 2019 and December 31, 2018 , we did not have any significant contract balances. (b) Other Non-Interest Expense Other non-interest expense items for the three months ended March 31, 2019 and 2018 , respectively, are presented in the following table: For the three months ended March 31, 2019 2018 Other non-interest expense: Professional fees $ 4,148 $ 3,502 Advertising and promotion 991 1,543 Telephone 1,895 1,558 Operational losses 583 1,275 Insurance & surety bond premium 1,062 571 Pension plan expense (benefit) 74 (1,008 ) Other 8,191 5,833 Total other non-interest expense $ 16,944 $ 13,274

Earnings Per Common Share

Earnings Per Common Share	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings Per Common Share The following is a summary of the calculation of earnings per common share (“EPS”): For the three months ended March 31, 2019 2018 Net income available to common stockholders $ 99,448 $ 96,873 Weighted average common shares outstanding for computation of basic EPS 213,157,090 224,730,686 Common-equivalent shares due to the dilutive effect of stock options and unvested performance share grants (1) 348,752 533,461 Weighted average common shares for computation of diluted EPS 213,505,842 225,264,147 EPS: Basic $ 0.47 $ 0.43 Diluted 0.47 0.43 Weighted average common shares that could be exercised that were anti-dilutive for the period (2) — — (1) Represents incremental shares computed using the treasury stock method. (2) Anti-dilutive shares are not included in determining diluted EPS. There were no anti-dilutive shares in the three months ended March 31, 2019 or March 31, 2018 .

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2019
Stockholders' Equity Note [Abstract]
Stockholders' Equity	Stockholders’ Equity (a) Regulatory Capital Requirements Banks and bank holding companies are subject to various regulatory capital requirements administered by the federal banking agencies. Capital adequacy guidelines, and, additionally for banks, prompt corrective action regulations, involve quantitative measures of assets, liabilities, and certain off-balance sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators about components, risk-weighting, and other factors. The Company’s and the Bank’s Common Equity Tier 1 capital consists of common stock and related paid-in capital, net of treasury stock, and retained earnings. In connection with the adoption of the Basel III Capital Rules, we elected to opt-out of the requirement to include most components of accumulated other comprehensive income in Common Equity Tier 1 capital. Common Equity Tier 1 capital for both the Company and the Bank is reduced by goodwill and other intangible assets, net of associated deferred tax liabilities and subject to transition provisions. Tier 1 capital includes Common Equity Tier 1 capital and additional Tier 1 capital. Total capital includes Tier 1 capital and Tier 2 capital. Tier 2 capital (as defined in the regulations) for both the Bank and us includes a permissible portion of the allowance for loan losses and $173,001 and $144,824 of the Subordinated Notes, respectively. During the final five years of the term of the Subordinated Notes, the permissible portion eligible for inclusion in Tier 2 capital decreases by 20% annually. The Common Equity Tier 1, Tier 1 and Total capital ratios are calculated by dividing the respective capital amounts by risk-weighted assets (“RWA”). RWA is calculated based on regulatory requirements and includes total assets, excluding goodwill and other intangible assets, allocated by risk weight category, and certain off-balance-sheet items, among other items. The following tables present actual and required capital ratios as of March 31, 2019 and December 31, 2018 for us and the Bank under the Basel III Capital Rules. The Basel III Capital Rules became fully phased-in on January 1, 2019. The minimum required capital amounts presented include the minimum required capital levels as of December 31, 2018 include the minimum required capital levels applicable as of that date as well as the minimum required capital levels as of January 1, 2019 when the Basel III Capital Rules became fully phased-in. Capital levels required to be considered well-capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. Actual Minimum capital required - Basel III Required to be considered well- capitalized Capital amount Ratio Capital amount Ratio Capital amount Ratio March 31, 2019 Common equity tier 1 to RWA: Sterling National Bank $ 2,780,903 13.13 % $ 1,483,071 7.00 % $ 1,377,138 6.50 % Sterling Bancorp 2,539,554 11.98 1,484,270 7.00 N/A N/A Tier 1 capital to RWA: Sterling National Bank 2,780,903 13.13 % 1,800,872 8.50 % 1,694,939 8.00 % Sterling Bancorp 2,677,772 12.63 1,802,328 8.50 N/A N/A Total capital to RWA: Sterling National Bank 3,053,518 14.41 % 2,224,607 10.50 % 2,118,673 10.00 % Sterling Bancorp 2,922,209 13.78 2,226,405 10.50 N/A N/A Tier 1 leverage ratio: Sterling National Bank 2,780,903 9.58 % 1,161,717 4.00 % 1,452,147 5.00 % Sterling Bancorp 2,677,772 9.21 1,162,518 4.00 N/A N/A Actual Minimum capital required - Basel III phase-in schedule Minimum capital required - Basel III fully phased-in Required to be considered well- capitalized Capital amount Ratio Capital amount Ratio Capital amount Ratio Capital amount Ratio December 31, 2018 Common equity tier 1 to RWA: Sterling National Bank $ 2,915,484 13.55 % $ 1,371,480 6.375 % $ 1,505,939 7.00 % $ 1,398,372 6.50 % Sterling Bancorp 2,649,593 12.31 1,372,457 6.375 1,507,011 7.00 N/A N/A Tier 1 capital to RWA: Sterling National Bank 2,915,484 13.55 % 1,694,181 7.875 % 1,828,640 8.50 % 1,721,073 8.00 % Sterling Bancorp 2,788,016 12.95 1,695,388 7.875 1,829,942 8.50 N/A N/A Total capital to RWA: Sterling National Bank 3,184,758 14.80 % 2,124,450 9.875 % 2,258,908 10.50 % 2,151,341 10.00 % Sterling Bancorp 3,027,124 14.06 2,125,963 9.875 2,260,517 10.50 N/A N/A Tier 1 leverage ratio: Sterling National Bank 2,915,484 9.94 % 1,172,964 4.00 % 1,172,964 4.00 % 1,466,206 5.00 % Sterling Bancorp 2,788,016 9.50 1,173,883 4.00 1,173,883 4.00 N/A N/A The Bank and the Company are subject to the regulatory capital requirements administered by the FRB, and, for the Bank, the Office of the Comptroller of the Currency. Regulatory authorities can initiate certain mandatory actions if the Bank or the Company fails to meet the minimum capital requirements, which could have a direct material effect on our financial statements. As of March 31, 2019 , and December 31, 2018 , the most recent regulatory notifications categorized the Company and the Bank as well capitalized under the regulatory framework for prompt corrective action. There are no conditions or events since that notification that management believes have changed the classification. (b) Dividend Restrictions We are mainly dependent on dividends from the Bank to provide funds for the payment of dividends to stockholders and to provide for other cash requirements. Banking regulations may limit the amount of dividends that may be paid. Approval by regulatory authorities is required if the effect of dividends declared would cause the regulatory capital of the Bank to fall below specified minimum levels. Approval is also required if dividends declared exceed the net profits for that fiscal year combined with the retained net profits for the preceding two fiscal years. Under the foregoing dividend restrictions and while maintaining its “well-capitalized” status, at March 31, 2019 , the Bank had capacity to pay aggregate dividends of up to $165,000 to us without prior regulatory approval. (c) Stock Repurchase Plans From time to time, our Board of Directors has authorized stock repurchase plans. We may purchase up to 20,000,000 common shares, between the fourth quarter of 2018 and first quarter of 2019 we purchased a total of 17,117,366 of the authorized shares. Repurchases may be made at management’s discretion through open market purchases and block trades in accordance with SEC and regulatory requirements. Any common shares purchased will be held as Treasury stock and made available for general corporate purposes. In the three months ended March 31, 2019 , there were 8,002,595 shares repurchased under the repurchase program and none during the three months ended March 31, 2018 . On April 24, 2019, our Board of Directors increased the number of shares authorized for repurchase by 10,000,000 common shares.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies (a) Off-Balance Sheet Financial Instruments In the normal course of business, we enter into various transactions, which, in accordance with GAAP, are not included in our consolidated balance sheets. We enter into these transactions to meet the financing needs of our customers. These transactions include commitments to extend credit and standby letters of credit, which involve, to varying degrees, elements of credit risk and interest rate risk in excess of the amounts recognized in the consolidated balance sheets. We minimize our exposure to losses under these commitments by subjecting them to credit approval and monitoring procedures. We enter into contractual commitments to extend credit, normally with fixed expiration dates or termination clauses, at specified rates and for specific purposes. Substantially all of our commitments to extend credit are contingent upon customers maintaining specific credit standards at the time of loan funding. Standby letters of credit are written conditional commitments issued by us to guarantee the performance of a customer to a third-party. In the event the customer does not perform in accordance with the terms of the agreement with the third-party, we would be required to fund the commitment. The maximum potential amount of future payments we could be required to make is represented by the contractual amount of the commitment. If the commitment were funded, we would be entitled to seek recovery from the customer. Based on our credit risk exposure assessment of its standby letter of credit arrangements, the arrangements contain security and debt covenants similar to those contained in loan agreements. The contractual or notional amounts of these instruments, which reflect the extent of our involvement in particular classes of off-balance sheet financial instruments, are summarized as follows: March 31, December 31, 2019 2018 Loan origination commitments $ 414,545 $ 417,027 Unused lines of credit 1,823,040 1,737,315 Letters of credit 300,123 287,779 (b) Litigation We and the Bank are involved in a number of judicial proceedings concerning matters arising from their business activities. These include routine legal proceedings arising in the ordinary course of business. These proceedings also include actions brought against us and the Bank with respect to corporate matters and transactions in which we and the Bank are or were involved. There can be no assurance as to the ultimate outcome of a legal proceeding; however, we and the Bank have generally denied liability in all significant litigation pending against them and intend to defend vigorously each case, other than matters that are determined appropriate to be settled. We and the Bank accrue a liability for legal claims when payments associated with the claims become probable and the costs can be reasonably estimated. The actual costs of resolving legal claims may be substantially higher or lower than the amounts accrued for those claims. At March 31, 2019 and December 31, 2018 we have no amounts accrued for litigation.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in an orderly transaction occurring in the principal or most advantageous market for such asset or liability in an orderly transaction between market participants on the measurement date. In estimating fair value, we use valuation techniques that are consistent with the market approach, the income approach and/or the cost approach. Such valuation techniques are consistently applied. GAAP establishes a fair value hierarchy comprised of three levels of inputs that may be used to measure fair values. Level 1 Inputs – Unadjusted quoted prices in active markets for identical assets and liabilities that the reporting entity has the ability to access at the measurement date. Level 2 Inputs – Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (such as interest rates, volatilities, prepayment speeds, credit risk, etc.) or inputs that are derived principally from, or corroborated by, market data by correlation or other means. Level 3 Inputs – Unobservable inputs for determining the fair value of assets or liabilities that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities. In general, fair value is based on quoted market prices, when available. If quoted market prices in active markets are not available, fair value is based on internally developed models that primarily use, as inputs, observable market-based parameters. Valuation adjustments may be made to ensure that financial instruments are recorded at fair value. These adjustments may include amounts to reflect counterparty credit quality and the Company’s creditworthiness, among other things, as well as unobservable parameters. Any such valuation adjustments are applied consistently over time. The Company’s valuation methodologies may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. While management believes the Company’s valuation methodologies are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. Furthermore, the reported fair value amounts have not been comprehensively revalued since the presentation dates, and therefore, estimates of fair value after the balance sheet date may differ significantly from the amounts presented herein. A more detailed description of the valuation methodologies used for assets and liabilities measured at fair value is set forth below. Transfers between levels of the fair value hierarchy are recognized on the actual date of the event or circumstances that caused the transfer, which generally coincide with the Company’s monthly and/or quarterly valuation process. Investment Securities Available for Sale The majority of our available for sale investment securities are reported at fair value utilizing Level 2 inputs. For these securities, we obtain fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the securities’ terms and conditions, among other things. The Company reviews the prices supplied by the independent pricing service, as well as their underlying pricing methodologies, for reasonableness and to ensure such prices are aligned with traditional pricing matrices. In general, the Company does not purchase investment securities that have a complicated structure. The Company’s entire portfolio consists of traditional investments, nearly all of which are mortgage pass-through securities, state and municipal general obligation or revenue bonds, U.S. agency bullet and callable securities and corporate bonds. Pricing for such instruments is fairly generic and is easily obtained. From time to time, the Company validates, on a sample basis, prices supplied by the independent pricing service by comparison to prices obtained from third-party sources or derived using internal models. As of March 31, 2019 , management did not believe any of our securities are OTTI; however, management reviews all of our securities on at least a quarterly basis to assess whether impairment, if any, is OTTI. Derivatives The fair values of derivatives are based on valuation models using current observable market data (including interest rates and fees), the remaining terms of the agreements and the credit worthiness of the counterparty as of the measurement date, which are considered Level 2 inputs. Our derivatives are traded in an over-the-counter market where quoted market prices are not always available. The Company’s derivatives at March 31, 2019 , consisted of interest rate swaps. (See Note 10. “Derivatives.”) A summary of assets and liabilities at March 31, 2019 and December 31, 2018 , respectively, measured at estimated fair value on a recurring basis, is as follows: March 31, 2019 Fair value Level 1 inputs Level 2 inputs Level 3 inputs Assets: Investment securities available for sale: Residential MBS (1) : Agency-backed $ 2,051,304 $ — $ 2,051,304 $ — CMOs (2) /Other MBS 529,510 — 529,510 — Total residential MBS 2,580,814 — 2,580,814 — Other securities: Federal agencies 216,272 — 216,272 — Corporate 368,447 — 368,447 — State and municipal 682,266 — 682,266 — Total other securities 1,266,985 — 1,266,985 — Total available for sale securities 3,847,799 — 3,847,799 — Swaps 33,394 — 33,394 — Total assets $ 3,881,193 $ — $ 3,881,193 $ — Liabilities: Swaps $ 14,170 $ — $ 14,170 $ — Total liabilities $ 14,170 $ — $ 14,170 $ — December 31, 2018 Fair value Level 1 inputs Level 2 inputs Level 3 inputs Assets: Investment securities available for sale: Residential MBS (1) : Agency-backed $ 2,268,851 $ — $ 2,268,851 $ — CMOs (2) /Other MBS 574,770 — 574,770 — Total residential MBS 2,843,621 — 2,843,621 — Federal agencies 273,973 — 273,973 — Corporate bonds 527,965 — 527,965 — State and municipal 225,004 — 225,004 — Total other securities 1,026,942 — 1,026,942 — Total available for sale securities 3,870,563 — 3,870,563 — Swaps 18,215 — 18,215 — Total assets $ 3,888,778 $ — $ 3,888,778 $ — Liabilities: Swaps $ 13,001 $ — $ 13,001 $ — Total liabilities $ 13,001 $ — $ 13,001 $ — (1) Residential MBS are debt securities whose cash flows come from residential mortgage and consumer loans, such as mortgages and HELOCs. A residential MBS is comprised of a pool of mortgage loans created by financial institutions, including governmental agencies. The cash flows from each mortgage loan included in the pool are structured through a special purpose entity into various classes and tranches, which then issues securities backed by those cash flows to investors. (2) CMOs are debt securities that are collateralized by a specific pool of residential mortgage loans, in which the issuer of the CMOs can direct the payments of principal and interest received on the underlying collateral to achieve specific investor cash flow objectives. The Bank generally acquires planned-amortization class securities and CMOs with a sequential pay structure in order to manage the duration and extension risk inherent in these securities. The following categories of financial assets are not measured at fair value on a recurring basis, but are subject to fair value adjustments in certain circumstances. Loans Held for Sale The estimated fair value of commercial loans originated and intended for sale approximates their carrying value as these loans are variable-rate loans that reprice frequently with no significant change in credit risk since origination. Residential loans held for sale are carried at the lower of cost or fair value, which is evaluated on a pool-level basis. Fair value is determined using quoted prices for similar assets, adjusted for specific attributes of that loan or other observable market data, such as outstanding commitments from third party investors. Impaired Loans The Company may record adjustments to the carrying value of loans based on fair value measurements, generally as partial charge-offs of the uncollectible portions of these loans. These adjustments also include certain impairment amounts for collateral dependent loans calculated in accordance with GAAP. Impairment amounts are generally based on the fair value of the underlying collateral supporting the loan and, as a result, the carrying value of the loan less the calculated impairment amount applicable to that loan generally approximates the fair value of the loan. Real estate collateral is valued using independent appraisals or other indications of value based on recent comparable sales of similar properties or assumptions generally observable by market participants. However, due to the substantial judgment applied and limited volume of activity as compared to other assets, fair value is based on Level 3 inputs. Estimates of fair value used for collateral supporting commercial loans not collateralized by real estate generally are based on assumptions not observable in the market place and are also based on Level 3 inputs. Impaired loans subject to non-recurring fair value measurements were $92,373 and $100,998 at March 31, 2019 and December 31, 2018 , respectively. Changes in fair value recognized as a charge-off on loans held by us were $3,958 and $542 for the three months ended March 31, 2019 and 2018 , respectively. When an impaired loan is collateral dependent, we charge-off the difference between the recorded investment in the loan and the appraised value less cost to sell. A discount for estimated costs to dispose of the asset and overall marketability is used when estimating the amount of impairment. A summary of the classes with impaired loans at March 31, 2019 and December 31, 2018 , respectively, is set forth below: March 31, 2019 Fair value Level 1 inputs Level 2 inputs Level 3 inputs Traditional C&I $ 20,828 $ — $ — $ 20,828 Asset-based lending 1,294 — — 1,294 Equipment financing 252 — — 252 Commercial real estate 10,592 — — 10,592 Multi-family 1,183 — — 1,183 Residential mortgage 1,133 — — 1,133 Total impaired loans measured at fair value $ 35,282 $ — $ — $ 35,282 December 31, 2018 Fair value Level 1 inputs Level 2 inputs Level 3 inputs Traditional C&I $ 28,780 $ — $ — $ 28,780 Commercial real estate 10,725 — — 10,725 Multi-family 1,210 — — 1,210 Residential mortgage 769 — — 769 Total impaired loans measured at fair value $ 41,484 $ — $ — $ 41,484 Mortgage Servicing Rights T he Company utilizes the amortization method to account for mortgage servicing rights, which are amortized on a periodic basis, and reported with other assets in the consolidated balance sheet at the lower of amortized cost or fair value. To estimate the fair value of servicing rights, the Company utilizes a third-party that considers the market prices for similar assets and the present value of expected future cash flows associated with the mortgage servicing rights. Mortgage servicing rights are evaluated for impairment based upon the fair value of the rights as compared to the carrying amount. If the carrying amount of an individual tranche exceeds fair value, impairment is recorded on that tranche so that the servicing asset is carried at fair value. Assumptions utilized to calculate fair value include estimates of the cost of servicing, loan default rates, an appropriate discount rate and prepayment speeds. The determination of fair value of servicing rights relies upon Level 3 inputs. At March 31, 2019 , the assumption for constant prepayment rates (“CPR”) ranged from 8.74 to 19.53 , with a weighted average CPR of 9.14 , and the assumption for market discount rate ranged from 9.06% to 20.00% , with a weighted average market discount rate of 9.54% . At December 31, 2018 , the CPR assumption ranged from 7.98 to 24.07 with a weighted average CPR of 8.54 , and the assumption for market discount rate ranged from 9.00% to 20.0% with a weighted average market discount rate of 9.60% The fair value of mortgage servicing rights at March 31, 2019 and December 31, 2018 was $11,105 and $11,715 , respectively. Other Real Estate Owned (Assets Taken in Foreclosure of Defaulted Loans) Other real estate owned is initially recorded at fair value less costs to sell when acquired, which establishes a new cost basis. These assets are subsequently accounted for at the lower of cost or fair value, less costs to sell, and are primarily comprised of commercial and residential real estate property. Upon initial recognition, other real estate owned is re-measured and reported at fair value through a charge-off to the allowance for loan losses based on the fair value of the underlying collateral. The fair value is generally determined using appraisals or other indications of value based on recent comparable sales of similar properties or assumptions generally observable in the market place. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between comparable sales and income data available. The fair value is derived using Level 3 inputs. Appraisals are reviewed by our credit department, our external loan review consultant and verified by officers in our credit administration area. At March 31, 2019 and December 31, 2018 , appraisals were discounted by 22.0% , which considers estimated costs to sell and overall marketability of the properties. OREO subject to non-recurring fair value measurement was $16,502 and $19,377 at March 31, 2019 and December 31, 2018 , respectively. There were $141 and $200 of write-downs related to changes in fair value for OREO held by us during the three months ended March 31, 2019 and March 31, 2018 , respectively. Fair Value of Financial Instruments GAAP requires disclosure of fair value information for those financial instruments for which it is practicable to estimate fair value, whether or not such financial instruments are recognized in the consolidated financial statements for interim and annual periods. Quoted market prices are used to estimate fair values when those prices are available, although active markets do not exist for many types of financial instruments. Fair values for these instruments must be estimated by management using techniques such as discounted cash flow analysis and comparison to similar instruments. These estimates are highly subjective and require judgments regarding significant matters, such as the amount and timing of future cash flows and the selection of discount rates that appropriately reflect market and credit risks. Changes in these judgments often have a material effect on the fair value estimates. Since these estimates are made as of a specific point in time, they are susceptible to material near-term changes. Fair values disclosed in accordance with GAAP do not reflect any premium or discount that could result from the sale of a large volume of a particular financial instrument, nor do they reflect possible tax ramifications or estimated transaction costs. The following is a summary of the carrying amounts and estimated fair value of financial assets and liabilities (none of which were held for trading purposes) as of March 31, 2019 : March 31, 2019 Carrying amount Level 1 inputs Level 2 inputs Level 3 inputs Financial assets: Cash and cash equivalents $ 314,255 $ 314,255 $ — $ — Securities available for sale 3,847,799 — 3,847,799 — Securities held to maturity 2,067,251 — 2,079,057 — Loans held for sale 248,972 — 248,972 — Portfolio loans, net 19,809,513 — — 19,859,037 Accrued interest receivable on securities 39,419 — 39,419 — Accrued interest receivable on loans 76,345 — — 76,345 FHLB stock and FRB stock 298,455 — — — Swaps 33,394 — 33,394 — Financial liabilities: Non-maturity deposits (18,692,462 ) (18,692,462 ) — — Certificates of deposit (2,533,177 ) — (2,513,906 ) — FHLB borrowings (3,259,507 ) — (3,250,738 ) — Other borrowings (27,020 ) — (27,018 ) — Senior Notes (173,952 ) — (179,634 ) — Subordinated Notes (173,001 ) — (175,388 ) — Mortgage escrow funds (102,036 ) — (102,036 ) — Accrued interest payable on deposits (4,222 ) — (4,222 ) — Accrued interest payable on borrowings (14,751 ) — (14,751 ) — Swaps (14,170 ) — (14,170 ) — The following is a summary of the carrying amounts and estimated fair value of financial assets and liabilities (none of which were held for trading purposes) as of December 31, 2018 : December 31, 2018 Carrying amount Level 1 inputs Level 2 inputs Level 3 inputs Financial assets: Cash and cash equivalents $ 438,110 $ 438,110 $ — $ — Securities available for sale 3,870,563 — 3,870,563 — Securities held to maturity 2,796,617 — 2,740,522 — Loans held for sale 1,565,979 — 1,565,979 — Portfolio loans, net 19,122,853 — — 19,033,743 Accrued interest receivable on securities 38,722 — 38,722 — Accrued interest receivable on loans 68,389 — — 68,389 FHLB stock and FRB stock 369,690 — — — Swaps 18,215 — 18,215 — Financial liabilities: Non-maturity deposits (18,737,217 ) (18,737,217 ) — — Certificates of deposit (2,476,931 ) — (2,447,534 ) — FHLB borrowings (4,838,772 ) — (4,821,652 ) — Other borrowings (21,338 ) — (21,337 ) — Senior Notes (181,130 ) — (179,786 ) — Subordinated Notes (172,943 ) — (177,481 ) — Mortgage escrow funds (72,891 ) — (64,074 ) — Accrued interest payable on deposits (3,191 ) — (3,191 ) — Accrued interest payable on borrowings (11,823 ) — (11,823 ) — Swaps (13,001 ) — (13,001 ) —

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Components of accumulated other comprehensive loss were as follows as of the dates shown below: March 31, December 31, 2019 2018 Net unrealized holding loss on available for sale securities $ (27,055 ) $ (103,756 ) Related income tax benefit 7,478 28,679 Available for sale securities, net of tax (19,577 ) (75,077 ) Net unrealized holding loss on securities transferred to held to maturity (1,101 ) (3,518 ) Related income tax benefit 304 972 Securities transferred to held to maturity, net of tax (797 ) (2,546 ) Net unrealized holding gain on retirement plans 18,783 15,900 Related income tax benefit (5,019 ) (4,222 ) Retirement plans, net of tax 13,764 11,678 Accumulated other comprehensive loss $ (6,610 ) $ (65,945 ) The following table presents the changes in each component of accumulated other comprehensive loss for the three months ended March 31, 2019 and 2018 : Net unrealized holding (loss) gain on available for sale securities Net unrealized holding (loss) gain on securities transferred to held to maturity Net unrealized holding gain (loss) on retirement plans Total For the three months ended March 31, 2019 Balance beginning of the period $ (75,077 ) $ (2,546 ) $ 11,678 $ (65,945 ) Other comprehensive gain before reclassification 54,508 — — 54,508 Securities reclassified from held to maturity to available for sale (8,548 ) — — (8,548 ) Amounts reclassified from accumulated other comprehensive loss 9,540 1,749 2,086 13,375 Total other comprehensive income 55,500 1,749 2,086 59,335 Balance at end of period $ (19,577 ) $ (797 ) $ 13,764 $ (6,610 ) For the three months ended March 31, 2018 Balance beginning of the period $ (22,324 ) $ (2,678 ) $ (1,164 ) $ (26,166 ) Reclassification of the stranded income tax effects from the enactment of the Tax Cuts and Jobs Act of 2017 from accumulated other comprehensive loss (4,376 ) (525 ) (228 ) (5,129 ) Other comprehensive (loss) before reclassification (53,830 ) — — (53,830 ) Amounts reclassified from accumulated other comprehensive loss 5,421 169 491 6,081 Total other comprehensive (loss) income (48,409 ) 169 491 (47,749 ) Balance at end of period $ (75,109 ) $ (3,034 ) $ (901 ) $ (79,044 ) Location in consolidated income statements where reclassification from accumulated other comprehensive loss is included Net loss on sale of securities Interest income on securities Other non-interest expense

Recently Issued Accounting Stan

Recently Issued Accounting Standards Not Yet Adopted	3 Months Ended
	Mar. 31, 2019
Accounting Changes and Error Corrections [Abstract]
Recently Issued Accounting Standards Not Yet Adopted	Recently Issued Accounting Standards Not Yet Adopted ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (ASU 2016-13”). ASU 2016-13 requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts and requires enhanced disclosures related to the significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of our loan portfolio. In addition, ASU 2016-13 amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. ASU 2016-13 will be effective for us on January 1, 2020. We are currently evaluating the potential impact of ASU 2016-13 on our financial statements. In that regard, we have formed a cross-functional working group under the direction of our Chief Financial Officer and our Chief Risk Officer. The working group is comprised of individuals from various areas including credit, risk management, finance and business intelligence, among others. We continue to work through our implementation plan and have made significant progress as follows: • through our principal vendor we are implementing estimation approaches and creating documentation to provide an audit trail for key design decisions and assumptions; • continued our efforts to migrate to a dual credit risk rating methodology; • established preliminary decisions regarding economic scenarios; • performed initial data gap assessment and completed remediation efforts; • conducted preliminary testing across investments securities portfolio; • commenced review of financial disclosure requirements; and • documented process for determining qualitative factors impacting the expected credit losses (“CECL”) estimate. The impact of adoption will be significantly influenced by the composition, characteristics and quality of our loan and securities portfolios as well as the prevailing economic conditions and forecasts as of the adoption date. Although we anticipate the allowance for loan losses will be greater under the CECL model compared to the current loss incurred model, we do not anticipate the change will be material to our capital position. ASU 2018-13, “Fair Value Measurement (Topic 820) - Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement” (“ASU 2018-13”). ASU 2018-13 modifies the disclosure requirements on fair value measurements in Topic 820. The amendments in this update remove disclosures that no longer are considered cost beneficial, modify/clarify the specific requirements of certain disclosures, and add disclosure requirements identified as relevant. ASU 2018-13 will be effective for us on January 1, 2020, and is not expected to have a significant impact on our financial statements. ASU 2018-14, “Compensation - Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20)” (“ASU 2018-14”). ASU 2018-14 amends and modifies the disclosure requirements for employers that sponsor defined benefit pension or other post-retirement plans. The amendments in this update remove disclosures that are no longer considered cost beneficial, clarify the specific requirements of disclosures, and add disclosure requirements identified as relevant. ASU 2018-14 will be effective for us on January 1, 2021, with early adoption permitted, and is not expected to have a significant impact on our financial statements. ASU 2018-15, “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40) - Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract” (“ASU 2018-15”). ASU 2018-15 clarifies certain aspects of ASU 2015-05,“Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement,” which was issued in April 2015. Specifically, ASU 2018-15 aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). ASU 2018-15 does not affect the accounting for the service element of a hosting arrangement that is a service contract. ASU 2018-15 will be effective for us on January 1, 2020, and is not expected to have a significant impact on our financial statements.

Basis of Financial Statement _2

Basis of Financial Statement Presentation - (Policies)	3 Months Ended
	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The consolidated financial statements in this Quarterly Report on Form 10-Q include the accounts of the Company and all other entities in which the Company has a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation. The accounting and financial reporting policies we follow conform, in all material respects, to accounting principles generally accepted in the United States (“GAAP”) and to general practices within the banking industry, which include regulatory reporting instructions. The consolidated financial statements in this Quarterly Report on Form 10-Q have not been audited by an independent registered public accounting firm, but, in the opinion of management, reflect all adjustments necessary for a fair presentation of our financial position and results of operations. All such adjustments were of a normal and recurring nature. The consolidated financial statements have been prepared in accordance with GAAP and with the instructions to Form 10-Q adopted by the Securities and Exchange Commission (the “SEC”). Accordingly, the financial statements do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with our consolidated financial statements, and notes thereto, for the year ended December 31, 2018 , included in our Annual Report on Form 10-K, as filed with the SEC on March 1, 2019 (the “2018 Form 10-K”). Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period. Certain items in prior financial statements have been reclassified to conform to the current presentation. These reclassifications had no impact on previously reported net income.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, income, expense and contingencies at the date of the financial statements. Actual results could differ significantly from these estimates, particularly the allowance for loan losses and the status of contingencies, and are subject to change.
Recently Issued Accounting Standards, Adopted and Not Yet Adopted	Adoption of New Accounting Standards We adopted ASU No. 2016-02 “Leases (Topic 842)” , as of January 1, 2019, which requires lessees to recognize most leases on their balance sheets as a right-of-use asset with a corresponding lease liability. The standard included additional required qualitative and quantitative disclosures. We adopted the following practical expedients and elected the following accounting policies related to the leasing standard: • Carry over of historical lease classifications and whether existing contracts contain leases; • Current lease classification for existing leases; • Short-term lease accounting policy election allowing us not to recognize right-of-use assets and liabilities for leases with a term of 12 months or less; and • The option not to separate lease and non-lease components for certain leases. Adoption of this standard resulted in the recognition of right-of-use assets of $125,394 and a lease liability of $130,860 , included in other assets and other liabilities, respectively, in the March 31, 2019 consolidated balance sheet. The standard did not have a significant impact on operating results or cash flows. See Note 9. “Leases” for additional information. We adopted ASU 2017-12, “Derivatives and Hedging (Topic 815) - Targeted Improvements to Accounting for Hedging Activities,” (“ASU 2017-12”) which amended the hedge accounting recognition and presentation requirements in ASC 815 to improve the transparency and understandability of information conveyed to financial statement users about an entity’s risk management activities to better align the entity’s financial reporting for hedging relationships with those risk management activities and to reduce the complexity of and simplify the application of hedge accounting. A provision in ASU 2017-12 provides that we may reclassify a debt security from held to maturity to available for sale at the time of adoption if the debt security is eligible to be hedged under the last-of-layer method in accordance ASU 2017-12. Generally, this includes debt securities that are pre-payable, including mortgage-backed securities, and debt securities that are callable by the issuer, which are applicable to many of our state and local government debt securities. We transferred held to maturity securities with a book value of $720,440 and a fair value of $708,627 at December 31, 2018 to available for sale effective January 1, 2019. See Note 3. “Securities” for additional information. Recently Issued Accounting Standards Not Yet Adopted ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (ASU 2016-13”). ASU 2016-13 requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts and requires enhanced disclosures related to the significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of our loan portfolio. In addition, ASU 2016-13 amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. ASU 2016-13 will be effective for us on January 1, 2020. We are currently evaluating the potential impact of ASU 2016-13 on our financial statements. In that regard, we have formed a cross-functional working group under the direction of our Chief Financial Officer and our Chief Risk Officer. The working group is comprised of individuals from various areas including credit, risk management, finance and business intelligence, among others. We continue to work through our implementation plan and have made significant progress as follows: • through our principal vendor we are implementing estimation approaches and creating documentation to provide an audit trail for key design decisions and assumptions; • continued our efforts to migrate to a dual credit risk rating methodology; • established preliminary decisions regarding economic scenarios; • performed initial data gap assessment and completed remediation efforts; • conducted preliminary testing across investments securities portfolio; • commenced review of financial disclosure requirements; and • documented process for determining qualitative factors impacting the expected credit losses (“CECL”) estimate. The impact of adoption will be significantly influenced by the composition, characteristics and quality of our loan and securities portfolios as well as the prevailing economic conditions and forecasts as of the adoption date. Although we anticipate the allowance for loan losses will be greater under the CECL model compared to the current loss incurred model, we do not anticipate the change will be material to our capital position. ASU 2018-13, “Fair Value Measurement (Topic 820) - Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement” (“ASU 2018-13”). ASU 2018-13 modifies the disclosure requirements on fair value measurements in Topic 820. The amendments in this update remove disclosures that no longer are considered cost beneficial, modify/clarify the specific requirements of certain disclosures, and add disclosure requirements identified as relevant. ASU 2018-13 will be effective for us on January 1, 2020, and is not expected to have a significant impact on our financial statements. ASU 2018-14, “Compensation - Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20)” (“ASU 2018-14”). ASU 2018-14 amends and modifies the disclosure requirements for employers that sponsor defined benefit pension or other post-retirement plans. The amendments in this update remove disclosures that are no longer considered cost beneficial, clarify the specific requirements of disclosures, and add disclosure requirements identified as relevant. ASU 2018-14 will be effective for us on January 1, 2021, with early adoption permitted, and is not expected to have a significant impact on our financial statements. ASU 2018-15, “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40) - Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract” (“ASU 2018-15”). ASU 2018-15 clarifies certain aspects of ASU 2015-05,“Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement,” which was issued in April 2015. Specifically, ASU 2018-15 aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). ASU 2018-15 does not affect the accounting for the service element of a hosting arrangement that is a service contract. ASU 2018-15 will be effective for us on January 1, 2020, and is not expected to have a significant impact on our financial statements.
Fair Value Measurement, Policy	Mortgage Servicing Rights T he Company utilizes the amortization method to account for mortgage servicing rights, which are amortized on a periodic basis, and reported with other assets in the consolidated balance sheet at the lower of amortized cost or fair value. To estimate the fair value of servicing rights, the Company utilizes a third-party that considers the market prices for similar assets and the present value of expected future cash flows associated with the mortgage servicing rights. Mortgage servicing rights are evaluated for impairment based upon the fair value of the rights as compared to the carrying amount. If the carrying amount of an individual tranche exceeds fair value, impairment is recorded on that tranche so that the servicing asset is carried at fair value. Assumptions utilized to calculate fair value include estimates of the cost of servicing, loan default rates, an appropriate discount rate and prepayment speeds. The determination of fair value of servicing rights relies upon Level 3 inputs. When an impaired loan is collateral dependent, we charge-off the difference between the recorded investment in the loan and the appraised value less cost to sell. A discount for estimated costs to dispose of the asset and overall marketability is used when estimating the amount of impairment. Loans Held for Sale The estimated fair value of commercial loans originated and intended for sale approximates their carrying value as these loans are variable-rate loans that reprice frequently with no significant change in credit risk since origination. Residential loans held for sale are carried at the lower of cost or fair value, which is evaluated on a pool-level basis. Fair value is determined using quoted prices for similar assets, adjusted for specific attributes of that loan or other observable market data, such as outstanding commitments from third party investors. Impaired Loans The Company may record adjustments to the carrying value of loans based on fair value measurements, generally as partial charge-offs of the uncollectible portions of these loans. These adjustments also include certain impairment amounts for collateral dependent loans calculated in accordance with GAAP. Impairment amounts are generally based on the fair value of the underlying collateral supporting the loan and, as a result, the carrying value of the loan less the calculated impairment amount applicable to that loan generally approximates the fair value of the loan. Real estate collateral is valued using independent appraisals or other indications of value based on recent comparable sales of similar properties or assumptions generally observable by market participants. However, due to the substantial judgment applied and limited volume of activity as compared to other assets, fair value is based on Level 3 inputs. Estimates of fair value used for collateral supporting commercial loans not collateralized by real estate generally are based on assumptions not observable in the market place and are also based on Level 3 inputs. Level 1 Inputs – Unadjusted quoted prices in active markets for identical assets and liabilities that the reporting entity has the ability to access at the measurement date. Level 2 Inputs – Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (such as interest rates, volatilities, prepayment speeds, credit risk, etc.) or inputs that are derived principally from, or corroborated by, market data by correlation or other means. Level 3 Inputs – Unobservable inputs for determining the fair value of assets or liabilities that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities. In general, fair value is based on quoted market prices, when available. If quoted market prices in active markets are not available, fair value is based on internally developed models that primarily use, as inputs, observable market-based parameters. Valuation adjustments may be made to ensure that financial instruments are recorded at fair value. These adjustments may include amounts to reflect counterparty credit quality and the Company’s creditworthiness, among other things, as well as unobservable parameters. Any such valuation adjustments are applied consistently over time. The Company’s valuation methodologies may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. While management believes the Company’s valuation methodologies are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. Furthermore, the reported fair value amounts have not been comprehensively revalued since the presentation dates, and therefore, estimates of fair value after the balance sheet date may differ significantly from the amounts presented herein. A more detailed description of the valuation methodologies used for assets and liabilities measured at fair value is set forth below. Transfers between levels of the fair value hierarchy are recognized on the actual date of the event or circumstances that caused the transfer, which generally coincide with the Company’s monthly and/or quarterly valuation process. Investment Securities Available for Sale The majority of our available for sale investment securities are reported at fair value utilizing Level 2 inputs. For these securities, we obtain fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the securities’ terms and conditions, among other things. The Company reviews the prices supplied by the independent pricing service, as well as their underlying pricing methodologies, for reasonableness and to ensure such prices are aligned with traditional pricing matrices. In general, the Company does not purchase investment securities that have a complicated structure. The Company’s entire portfolio consists of traditional investments, nearly all of which are mortgage pass-through securities, state and municipal general obligation or revenue bonds, U.S. agency bullet and callable securities and corporate bonds. Pricing for such instruments is fairly generic and is easily obtained. From time to time, the Company validates, on a sample basis, prices supplied by the independent pricing service by comparison to prices obtained from third-party sources or derived using internal models. As of March 31, 2019 , management did not believe any of our securities are OTTI; however, management reviews all of our securities on at least a quarterly basis to assess whether impairment, if any, is OTTI. Derivatives The fair values of derivatives are based on valuation models using current observable market data (including interest rates and fees), the remaining terms of the agreements and the credit worthiness of the counterparty as of the measurement date, which are considered Level 2 inputs. Our derivatives are traded in an over-the-counter market where quoted market prices are not always available. Other Real Estate Owned (Assets Taken in Foreclosure of Defaulted Loans) Other real estate owned is initially recorded at fair value less costs to sell when acquired, which establishes a new cost basis. These assets are subsequently accounted for at the lower of cost or fair value, less costs to sell, and are primarily comprised of commercial and residential real estate property. Upon initial recognition, other real estate owned is re-measured and reported at fair value through a charge-off to the allowance for loan losses based on the fair value of the underlying collateral. The fair value is generally determined using appraisals or other indications of value based on recent comparable sales of similar properties or assumptions generally observable in the market place. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between comparable sales and income data available. The fair value is derived using Level 3 inputs. Appraisals are reviewed by our credit department, our external loan review consultant and verified by officers in our credit administration area. Fair Value of Financial Instruments GAAP requires disclosure of fair value information for those financial instruments for which it is practicable to estimate fair value, whether or not such financial instruments are recognized in the consolidated financial statements for interim and annual periods. Quoted market prices are used to estimate fair values when those prices are available, although active markets do not exist for many types of financial instruments. Fair values for these instruments must be estimated by management using techniques such as discounted cash flow analysis and comparison to similar instruments. These estimates are highly subjective and require judgments regarding significant matters, such as the amount and timing of future cash flows and the selection of discount rates that appropriately reflect market and credit risks. Changes in these judgments often have a material effect on the fair value estimates. Since these estimates are made as of a specific point in time, they are susceptible to material near-term changes. Fair values disclosed in accordance with GAAP do not reflect any premium or discount that could result from the sale of a large volume of a particular financial instrument, nor do they reflect possible tax ramifications or estimated transaction costs.

Securities - (Tables)

Securities - (Tables)	3 Months Ended
	Mar. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Summary of securities available for sale	A summary of amortized cost and estimated fair value of securities as of March 31, 2019 is presented below. The term “MBS” refers to mortgage-backed securities and the term “CMOs” refers to collateralized mortgage obligations. Both of these terms are further defined in Note 18. “Fair Value Measurements”. March 31, 2019 Available for Sale Held to Maturity Amortized cost Gross unrealized gains Gross unrealized losses Fair value Amortized cost Gross unrecognized gains Gross unrecognized losses Fair value Residential MBS: Agency-backed $ 2,068,142 $ 6,989 $ (23,827 ) $ 2,051,304 $ 190,516 $ 88 $ (2,061 ) $ 188,543 CMOs/Other MBS 545,415 2 (15,907 ) 529,510 — — — — Total residential MBS 2,613,557 6,991 (39,734 ) 2,580,814 190,516 88 (2,061 ) 188,543 Other securities: Federal agencies 216,306 1,059 (1,093 ) 216,272 59,168 370 (13 ) 59,525 Corporate 364,774 5,722 (2,049 ) 368,447 19,942 117 (55 ) 20,004 State and municipal 680,217 4,573 (2,524 ) 682,266 1,780,375 17,461 (4,206 ) 1,793,630 Other — — — — 17,250 109 (4 ) 17,355 Total other securities 1,261,297 11,354 (5,666 ) 1,266,985 1,876,735 18,057 (4,278 ) 1,890,514 Total securities $ 3,874,854 $ 18,345 $ (45,400 ) $ 3,847,799 $ 2,067,251 $ 18,145 $ (6,339 ) $ 2,079,057 A summary of securities classified as held to maturity at December 31, 2018 that were transferred to available for sale effective January 1, 2019 is presented below. Amortized Fair Residential MBS: Agency-backed $ 125,343 $ 121,510 CMOs/Other MBS 27,780 27,017 Total residential MBS 153,123 148,527 Other securities: Corporate 49,001 48,607 State and municipal 518,316 511,493 Total of securities transferred from held to maturity to available for sale $ 720,440 $ 708,627 A summary of amortized cost and estimated fair value of securities as of December 31, 2018 is presented below: December 31, 2018 Available for Sale Held to Maturity Amortized cost Gross unrealized gains Gross unrealized losses Fair value Amortized cost Gross unrecognized gains Gross unrecognized losses Fair value Residential MBS: Agency-backed $ 2,328,870 $ 2,347 $ (62,366 ) $ 2,268,851 $ 318,590 $ 73 $ (8,605 ) $ 310,058 CMOs/Other MBS 596,868 11 (22,109 ) 574,770 27,780 2 (765 ) 27,017 Total residential MBS 2,925,738 2,358 (84,475 ) 2,843,621 346,370 75 (9,370 ) 337,075 Other securities: Federal agencies 283,825 — (9,852 ) 273,973 59,065 160 (128 ) 59,097 Corporate 537,210 1,162 (10,407 ) 527,965 68,512 431 (392 ) 68,551 State and municipal 227,546 302 (2,844 ) 225,004 2,305,420 2,654 (49,562 ) 2,258,512 Other — — — — 17,250 49 (12 ) 17,287 Total other securities 1,048,581 1,464 (23,103 ) 1,026,942 2,450,247 3,294 (50,094 ) 2,403,447 Total securities $ 3,974,319 $ 3,822 $ (107,578 ) $ 3,870,563 $ 2,796,617 $ 3,369 $ (59,464 ) $ 2,740,522
Schedule of held for sale securities transferred to available-for-sale	A summary of securities classified as held to maturity at December 31, 2018 that were transferred to available for sale effective January 1, 2019 is presented below. Amortized Fair Residential MBS: Agency-backed $ 125,343 $ 121,510 CMOs/Other MBS 27,780 27,017 Total residential MBS 153,123 148,527 Other securities: Corporate 49,001 48,607 State and municipal 518,316 511,493 Total of securities transferred from held to maturity to available for sale $ 720,440 $ 708,627
Summary of securities held-to-maturity	A summary of amortized cost and estimated fair value of securities as of March 31, 2019 is presented below. The term “MBS” refers to mortgage-backed securities and the term “CMOs” refers to collateralized mortgage obligations. Both of these terms are further defined in Note 18. “Fair Value Measurements”. March 31, 2019 Available for Sale Held to Maturity Amortized cost Gross unrealized gains Gross unrealized losses Fair value Amortized cost Gross unrecognized gains Gross unrecognized losses Fair value Residential MBS: Agency-backed $ 2,068,142 $ 6,989 $ (23,827 ) $ 2,051,304 $ 190,516 $ 88 $ (2,061 ) $ 188,543 CMOs/Other MBS 545,415 2 (15,907 ) 529,510 — — — — Total residential MBS 2,613,557 6,991 (39,734 ) 2,580,814 190,516 88 (2,061 ) 188,543 Other securities: Federal agencies 216,306 1,059 (1,093 ) 216,272 59,168 370 (13 ) 59,525 Corporate 364,774 5,722 (2,049 ) 368,447 19,942 117 (55 ) 20,004 State and municipal 680,217 4,573 (2,524 ) 682,266 1,780,375 17,461 (4,206 ) 1,793,630 Other — — — — 17,250 109 (4 ) 17,355 Total other securities 1,261,297 11,354 (5,666 ) 1,266,985 1,876,735 18,057 (4,278 ) 1,890,514 Total securities $ 3,874,854 $ 18,345 $ (45,400 ) $ 3,847,799 $ 2,067,251 $ 18,145 $ (6,339 ) $ 2,079,057 A summary of securities classified as held to maturity at December 31, 2018 that were transferred to available for sale effective January 1, 2019 is presented below. Amortized Fair Residential MBS: Agency-backed $ 125,343 $ 121,510 CMOs/Other MBS 27,780 27,017 Total residential MBS 153,123 148,527 Other securities: Corporate 49,001 48,607 State and municipal 518,316 511,493 Total of securities transferred from held to maturity to available for sale $ 720,440 $ 708,627 A summary of amortized cost and estimated fair value of securities as of December 31, 2018 is presented below: December 31, 2018 Available for Sale Held to Maturity Amortized cost Gross unrealized gains Gross unrealized losses Fair value Amortized cost Gross unrecognized gains Gross unrecognized losses Fair value Residential MBS: Agency-backed $ 2,328,870 $ 2,347 $ (62,366 ) $ 2,268,851 $ 318,590 $ 73 $ (8,605 ) $ 310,058 CMOs/Other MBS 596,868 11 (22,109 ) 574,770 27,780 2 (765 ) 27,017 Total residential MBS 2,925,738 2,358 (84,475 ) 2,843,621 346,370 75 (9,370 ) 337,075 Other securities: Federal agencies 283,825 — (9,852 ) 273,973 59,065 160 (128 ) 59,097 Corporate 537,210 1,162 (10,407 ) 527,965 68,512 431 (392 ) 68,551 State and municipal 227,546 302 (2,844 ) 225,004 2,305,420 2,654 (49,562 ) 2,258,512 Other — — — — 17,250 49 (12 ) 17,287 Total other securities 1,048,581 1,464 (23,103 ) 1,026,942 2,450,247 3,294 (50,094 ) 2,403,447 Total securities $ 3,974,319 $ 3,822 $ (107,578 ) $ 3,870,563 $ 2,796,617 $ 3,369 $ (59,464 ) $ 2,740,522 The following table summarizes securities held to maturity with unrecognized losses, segregated by the length of time in a continuous unrecognized loss position for the periods presented below: Continuous unrecognized loss position Less than 12 months 12 months or longer Total Fair value Unrecognized losses Fair value Unrecognized losses Fair value Unrecognized losses Held to maturity March 31, 2019 Residential MBS: Agency-backed $ — $ — $ 159,577 $ (2,061 ) $ 159,577 $ (2,061 ) CMOs/Other MBS — — — — — — Total residential MBS — — 159,577 (2,061 ) 159,577 (2,061 ) Other securities: Federal agencies — — 14,824 (13 ) 14,824 (13 ) Corporate — — 9,887 (55 ) 9,887 (55 ) State and municipal 2,820 (2 ) 410,039 (4,204 ) 412,859 (4,206 ) Other 4,996 (4 ) — — 4,996 (4 ) Total other securities 7,816 (6 ) 434,750 (4,272 ) 442,566 (4,278 ) Total securities $ 7,816 $ (6 ) $ 594,327 $ (6,333 ) $ 602,143 $ (6,339 ) December 31, 2018 Residential MBS: Agency-backed $ 25,003 $ (147 ) $ 273,974 $ (8,458 ) $ 298,977 $ (8,605 ) CMOs/Other MBS 101 (2 ) 25,066 (763 ) 25,167 (765 ) Total residential MBS 25,104 (149 ) 299,040 (9,221 ) 324,144 (9,370 ) Other securities: Federal agencies 29,485 (95 ) 4,908 (33 ) 34,393 (128 ) Corporate 21,859 (137 ) 16,261 (255 ) 38,120 (392 ) State and municipal 118,389 (877 ) 1,897,758 (48,685 ) 2,016,147 (49,562 ) Other 9,488 (12 ) — — 9,488 (12 ) Total other securities 179,221 (1,121 ) 1,918,927 (48,973 ) 2,098,148 (50,094 ) Total securities $ 204,325 $ (1,270 ) $ 2,217,967 $ (58,194 ) $ 2,422,292 $ (59,464 )
Summary of amortized cost and fair value of investment securities available for sale by remaining period to contractual maturity	The amortized cost and estimated fair value of securities at March 31, 2019 are presented below by contractual maturity. Actual maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations. Residential MBS are shown separately since they are not due at a single maturity date. March 31, 2019 Available for sale Held to maturity Amortized cost Fair value Amortized cost Fair value Remaining period to contractual maturity: One year or less $ 11,554 $ 11,568 $ 65,358 $ 65,471 One to five years 134,689 134,062 98,556 99,359 Five to ten years 816,088 822,318 210,940 214,695 Greater than ten years 298,966 299,037 1,501,881 1,510,989 Total securities with a stated maturity date 1,261,297 1,266,985 1,876,735 1,890,514 Residential MBS 2,613,557 2,580,814 190,516 188,543 Total securities $ 3,874,854 $ 3,847,799 $ 2,067,251 $ 2,079,057
Sale of securities	Sales of securities for the periods indicated below were as follows: For the three months ended March 31, 2019 2018 Available for sale: Proceeds from sales $ 738,751 $ 117,810 Gross realized gains (1) 4,355 1 Gross realized losses (1) (17,539 ) (5,422 ) Income tax benefit on realized net losses (3,644 ) (1,260 ) (1) Gross realized gains and losses includes securities called prior to maturity.
Securities available for sale with unrealized losses, by length of time in continuous unrealized loss position	The following table summarizes securities available for sale with unrealized losses, segregated by the length of time in a continuous unrealized loss position for the periods presented below: Continuous unrealized loss position Less than 12 months 12 months or longer Total Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Available for sale March 31, 2019 Residential MBS: Agency-backed $ 95,470 $ (1,209 ) $ 1,509,947 $ (22,618 ) $ 1,605,417 $ (23,827 ) CMOs/Other MBS — — 526,178 (15,907 ) 526,178 (15,907 ) Total residential MBS 95,470 (1,209 ) 2,036,125 (38,525 ) 2,131,595 (39,734 ) Other securities: Federal agencies — — 88,805 (1,093 ) 88,805 (1,093 ) Corporate 23,201 (317 ) 84,236 (1,733 ) 107,437 (2,050 ) State and municipal 218,791 (1,847 ) 99,224 (677 ) 318,015 (2,524 ) Total other securities 241,992 (2,164 ) 272,265 (3,503 ) 514,257 (5,667 ) Total securities $ 337,462 $ (3,373 ) $ 2,308,390 $ (42,028 ) $ 2,645,852 $ (45,401 ) December 31, 2018 Residential MBS: Agency-backed $ 156,787 $ (536 ) $ 1,955,056 $ (61,830 ) $ 2,111,843 $ (62,366 ) CMOs/Other MBS 94 (2 ) 574,053 (22,107 ) 574,147 (22,109 ) Total residential MBS 156,881 (538 ) 2,529,109 (83,937 ) 2,685,990 (84,475 ) Other securities: Federal agencies — — 273,973 (9,852 ) 273,973 (9,852 ) Corporate 230,126 (4,278 ) 119,869 (6,129 ) 349,995 (10,407 ) State and municipal 16,172 (64 ) 175,966 (2,780 ) 192,138 (2,844 ) Total other securities 246,298 (4,342 ) 569,808 (18,761 ) 816,106 (23,103 ) Total securities $ 403,179 $ (4,880 ) $ 3,098,917 $ (102,698 ) $ 3,502,096 $ (107,578 )
Securities pledged for borrowings at FHLB and other institutions, and securities pledged for municipal deposits and other purposes	Securities pledged for borrowings at the FHLB and other institutions, and securities pledged for municipal deposits and other purposes, were as follows for the periods presented below: March 31, December 31, 2019 2018 Available for sale securities pledged for borrowings, at fair value $ 27,020 $ 12,206 Available for sale securities pledged for municipal deposits, at fair value 1,489,651 817,306 Held to maturity securities pledged for borrowings, at amortized cost 1,503 34,996 Held to maturity securities pledged for municipal deposits, at amortized cost 921,668 1,338,901 Total securities pledged $ 2,439,842 $ 2,203,409

Portfolio Loans - (Tables)

Portfolio Loans - (Tables)	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Components of loan portfolio excluding loans held for sale	The composition of our total portfolio loans, which excludes loans held for sale, was the following for the periods presented below: March 31, 2019 December 31, 2018 Originated loans Acquired loans Total Originated loans Acquired loans Total Commercial: C&I: Traditional C&I $ 2,386,984 $ 70,227 $ 2,457,211 $ 2,321,131 $ 75,051 $ 2,396,182 Asset-based lending 793,598 291,974 1,085,572 792,935 — 792,935 Payroll finance 204,610 — 204,610 227,452 — 227,452 Warehouse lending 1,022,811 — 1,022,811 782,646 — 782,646 Factored receivables 263,033 — 263,033 258,383 — 258,383 Equipment financing 930,883 404,834 1,335,717 913,751 301,291 1,215,042 Public sector finance 896,233 — 896,233 860,746 — 860,746 Total C&I 6,498,152 767,035 7,265,187 6,157,044 376,342 6,533,386 Commercial mortgage: CRE 4,391,136 431,785 4,822,921 4,154,956 487,461 4,642,417 Multi-family 1,554,913 3,138,179 4,693,092 1,527,619 3,236,505 4,764,124 ADC 290,875 — 290,875 267,754 — 267,754 Total commercial mortgage 6,236,924 3,569,964 9,806,888 5,950,329 3,723,966 9,674,295 Total commercial 12,735,076 4,336,999 17,072,075 12,107,373 4,100,308 16,207,681 Residential mortgage 571,594 1,977,690 2,549,284 621,471 2,083,755 2,705,226 Consumer 146,755 140,359 287,114 153,811 151,812 305,623 Total portfolio loans 13,453,425 6,455,048 19,908,473 12,882,655 6,335,875 19,218,530 Allowance for loan losses (98,960 ) — (98,960 ) (95,677 ) — (95,677 ) Total portfolio loans, net $ 13,354,465 $ 6,455,048 $ 19,809,513 $ 12,786,978 $ 6,335,875 $ 19,122,853
Schedule of amounts and status of loans and TDRs	The following tables set forth the amounts and status of our loans, troubled debt restructurings (“TDRs”) and non-performing loans at March 31, 2019 and December 31, 2018 : Originated loans: March 31, 2019 Current 30-59 60-89 90+ Non- Total Traditional C&I $ 2,344,556 $ 3,541 $ 36 $ 2,084 $ 36,767 $ 2,386,984 Asset-based lending 791,261 — — — 2,337 793,598 Payroll finance 203,915 — — — 695 204,610 Warehouse lending 1,022,811 — — — — 1,022,811 Factored receivables 263,033 — — — — 263,033 Equipment financing 901,695 8,772 5,172 129 15,115 930,883 Public sector finance 896,233 — — — — 896,233 CRE 4,356,172 3,711 4,785 — 26,468 4,391,136 Multi-family 1,550,317 141 — — 4,455 1,554,913 ADC 287,088 — 2,563 790 434 290,875 Residential mortgage 540,028 466 322 — 30,778 571,594 Consumer 136,782 501 410 214 8,848 146,755 Total loans $ 13,293,891 $ 17,132 $ 13,288 $ 3,217 $ 125,897 $ 13,453,425 Total TDRs included above $ 29,320 $ — $ 57 $ 214 $ 32,709 $ 62,300 Non-performing loans: Loans 90+ days past due and still accruing $ 3,217 Non-accrual loans 125,897 Total originated non-performing loans $ 129,114 December 31, 2018 Current 30-59 60-89 90+ Non- Total Traditional C&I $ 2,266,947 $ 5,747 $ 6,139 $ — $ 42,298 $ 2,321,131 Asset-based lending 789,654 — — — 3,281 792,935 Payroll finance 226,571 — — — 881 227,452 Warehouse lending 782,646 — — — — 782,646 Factored receivables 258,383 — — — — 258,383 Equipment financing 879,468 20,466 1,587 9 12,221 913,751 Public sector finance 860,746 — — — — 860,746 CRE 4,118,134 8,054 — 799 27,969 4,154,956 Multi-family 1,524,914 1,014 — — 1,691 1,527,619 ADC 267,090 230 — 434 — 267,754 Residential mortgage 592,563 1,934 897 264 25,813 621,471 Consumer 143,510 1,720 1,232 271 7,078 153,811 Total loans $ 12,710,626 $ 39,165 $ 9,855 $ 1,777 $ 121,232 $ 12,882,655 Total TDRs included above $ 34,892 $ 215 $ 181 $ 650 $ 38,947 $ 74,885 Non-performing loans: Loans 90+ days past due and still accruing $ 1,777 Non-accrual loans 121,232 Total originated non-performing loans $ 123,009 Acquired loans: March 31, 2019 Current 30-59 60-89 90+ Non- Total Traditional C&I $ 69,384 $ 243 $ 600 $ — $ — $ 70,227 Asset-based lending 291,974 — — — — 291,974 Equipment financing 399,407 5,427 — — — 404,834 CRE 417,344 4,602 6,174 — 3,665 431,785 Multi-family 3,135,508 1,340 — — 1,331 3,138,179 Residential mortgage 1,930,942 9,050 4,681 325 32,692 1,977,690 Consumer 135,348 1,014 709 127 3,161 140,359 Total loans $ 6,379,907 $ 21,676 $ 12,164 $ 452 $ 40,849 $ 6,455,048 Total TDRs included above $ — $ — $ — $ — $ — $ — Non-performing loans: Loans 90+ days past due and still accruing $ 452 Non-accrual loans 40,849 Total acquired non-performing loans $ 41,301 December 31, 2018 Current 30-59 days past due 60-89 days past due 90+ days past due Non- accrual Total Traditional C&I $ 69,690 $ 5,256 $ 105 $ — $ — $ 75,051 Equipment financing 288,447 8,659 3,998 187 — 301,291 CRE 481,583 377 — 458 5,043 487,461 Multi-family 3,233,779 1,736 — — 990 3,236,505 Residential mortgage 2,022,340 18,734 6,513 — 36,168 2,083,755 Consumer 146,042 1,852 951 — 2,967 151,812 Total loans $ 6,241,881 $ 36,614 $ 11,567 $ 645 $ 45,168 $ 6,335,875 Total TDRs included above $ — $ — $ — $ — $ — $ — Non-performing loans: Loans 90+ days past due and still accruing $ 645 Non-accrual loans 45,168 Total acquired non-performing loans $ 45,813
Schedule of additional analysis of non-accrual loans	The following table provides additional analysis of our non-accrual loans at March 31, 2019 and December 31, 2018 : March 31, 2019 December 31, 2018 Recorded investment non-accrual loans Recorded investment PCI non-accrual loans Recorded investment total non-accrual loans Unpaid principal balance non-accrual loans Recorded investment non-accrual loans Recorded investment PCI non-accrual loans Recorded investment total non-accrual loans Unpaid principal balance non-accrual loans Traditional C&I $ 36,094 $ 673 $ 36,767 $ 49,637 $ 41,625 $ 673 $ 42,298 $ 50,651 Asset-based lending 2,337 — 2,337 2,822 3,281 — 3,281 3,859 Payroll finance 695 — 695 695 881 — 881 881 Equipment financing 15,115 — 15,115 20,064 12,221 — 12,221 15,744 Commercial real estate 22,305 7,828 30,133 36,539 23,675 9,337 33,012 39,440 Multi-family 3,574 2,212 5,786 6,033 482 2,199 2,681 2,920 ADC — 434 434 434 — — — — Residential mortgage 29,636 33,834 63,470 73,192 24,339 37,642 61,981 72,706 Consumer 8,031 3,978 12,009 14,114 6,576 3,469 10,045 12,170 Total $ 117,787 $ 48,959 $ 166,746 $ 203,530 $ 113,080 $ 53,320 $ 166,400 $ 198,371
Impaired financing receivables	The following table presents loans individually evaluated for impairment, excluding PCI loans, by segment of loans at March 31, 2019 and December 31, 2018 : March 31, 2019 December 31, 2018 Unpaid principal balance Recorded investment Unpaid principal balance Recorded investment Loans with no related allowance recorded: Traditional C&I $ 50,565 $ 40,807 $ 64,653 $ 48,735 Asset-based lending 2,792 2,307 3,859 3,281 Equipment financing 3,974 3,722 3,577 3,577 Commercial real estate 34,047 29,346 43,119 33,284 Multi-family 4,705 4,373 2,341 1,662 ADC 789 789 — — Residential mortgage 4,784 4,629 3,430 3,210 Consumer 6,400 6,400 7,249 7,249 Total $ 108,056 $ 92,373 $ 128,228 $ 100,998 The following table sets forth loans evaluated for impairment by segment and the allowance evaluated by segment at March 31, 2019 : Loans evaluated by segment Allowance evaluated by segment Individually evaluated for impairment Collectively evaluated for impairment PCI loans (1) Total loans Individually evaluated for impairment Collectively evaluated for impairment Total allowance for loan losses Traditional C&I $ 40,807 $ 2,409,365 $ 7,039 $ 2,457,211 $ — $ 17,936 $ 17,936 Asset-based lending 2,307 1,077,672 5,593 1,085,572 — 8,573 8,573 Payroll finance — 204,610 — 204,610 — 2,100 2,100 Warehouse lending — 1,022,811 — 1,022,811 — 693 693 Factored receivables — 263,033 — 263,033 — 1,092 1,092 Equipment financing 3,722 1,324,338 7,657 1,335,717 — 14,326 14,326 Public sector finance — 896,233 — 896,233 — 1,134 1,134 Commercial real estate 29,346 4,770,876 22,699 4,822,921 — 33,087 33,087 Multi-family 4,373 4,682,367 6,352 4,693,092 — 8,659 8,659 ADC 789 290,086 — 290,875 — 1,912 1,912 Residential mortgage 4,629 2,460,592 84,063 2,549,284 — 6,925 6,925 Consumer 6,400 272,828 7,886 287,114 — 2,523 2,523 Total portfolio loans $ 92,373 $ 19,674,811 $ 141,289 $ 19,908,473 $ — $ 98,960 $ 98,960 (1) We acquired loans for which there was, at acquisition, both evidence of deterioration of credit quality since origination and the probability, at acquisition, that all contractually required payments would not be collected. These loans are classified as purchased credit impaired loans (“PCI loans”). The following table sets forth loans evaluated for impairment by segment and the allowance evaluated by segment at December 31, 2018 : Loans evaluated by segment Allowance evaluated by segment Individually evaluated for impairment Collectively evaluated for impairment PCI loans Total loans Individually evaluated for impairment Collectively evaluated for impairment Total allowance for loan losses Traditional C&I $ 48,735 $ 2,338,432 $ 9,015 $ 2,396,182 $ — $ 14,201 $ 14,201 Asset-based lending 3,281 789,654 — 792,935 — 7,979 7,979 Payroll finance — 227,452 — 227,452 — 2,738 2,738 Warehouse lending — 782,646 — 782,646 — 2,800 2,800 Factored receivables — 258,383 — 258,383 — 1,064 1,064 Equipment financing 3,577 1,211,465 — 1,215,042 — 12,450 12,450 Public sector finance — 860,746 — 860,746 — 1,739 1,739 Commercial real estate 33,284 4,581,911 27,222 4,642,417 — 32,285 32,285 Multi-family 1,662 4,754,912 7,550 4,764,124 — 8,355 8,355 ADC — 267,754 — 267,754 — 1,769 1,769 Residential mortgage 3,210 2,614,046 87,970 2,705,226 — 7,454 7,454 Consumer 7,249 290,336 8,038 305,623 — 2,843 2,843 Total portfolio loans $ 100,998 $ 18,977,737 $ 139,795 $ 19,218,530 $ — $ 95,677 $ 95,677 The following table presents the average recorded investment and interest income recognized related to loans individually evaluated for impairment by segment for the three months ended March 31, 2019 and March 31, 2018 : For the three months ended March 31, 2019 March 31, 2018 QTD average recorded investment Interest income recognized Cash-basis interest income recognized QTD average recorded investment Interest income recognized Cash-basis interest income recognized Loans with no related allowance recorded: Traditional C&I $ 41,835 $ 49 $ — $ 39,928 $ 140 $ — Asset-based lending 1,864 — — — — — Equipment financing 2,590 — — 1,411 — — Commercial real estate 28,586 172 — 12,190 44 — Multi-family 3,224 16 — 2,001 16 — ADC 395 13 — 4,138 3 — Residential mortgage 2,502 — — 2,599 — — Consumer 5,191 — — 3,127 — — Total $ 86,187 $ 250 $ — $ 65,394 $ 203 $ —
Schedule of changes in the balance of accretable yield discount for PCI loans	The following table presents the changes in the balance of the accretable yield discount for PCI loans for the three months ended March 31, 2019 and 2018 : For the three months ended March 31, 2019 2018 Balance at beginning of period $ 16,932 $ 45,582 Accretion of income (2,111 ) (3,029 ) Charge-offs (508 ) (342 ) Reclassification (to) from non-accretable difference 1,534 410 Other, adjustments — (15,072 ) Balance at end of period $ 15,847 $ 27,549
Troubled debt restructurings	The following table presents loans by segment modified as TDRs that occurred during the first three months of 2019 and 2018 : March 31, 2019 March 31, 2018 Recorded investment Recorded investment Number Pre- modification Post- modification Number Pre- modification Post- modification Traditional C&I — $ — $ — 1 $ 12,766 $ 12,766 Equipment financing 1 5,026 5,026 1 670 670 Residential mortgage 2 895 895 5 808 603 Total TDRs 3 $ 5,921 $ 5,921 7 $ 14,244 $ 14,039 The following tables set forth the amounts and past due status of our TDRs at March 31, 2019 and December 31, 2018 : March 31, 2019 Current loans 30-59 days past due 60-89 days past due 90+ days past due Non- accrual Total Traditional C&I $ 5,935 $ — $ — $ — $ 19,705 $ 25,640 Asset-based lending — — — — 1,294 1,294 Equipment financing 1,688 — — — 2,288 3,976 Commercial real estate 8,859 — — — 6,516 15,375 ADC — — — — 434 434 Residential mortgage 6,818 — — — 2,195 9,013 Consumer 6,020 — 57 214 277 6,568 Total $ 29,320 $ — $ 57 $ 214 $ 32,709 $ 62,300 There were no payroll finance, warehouse lending, factored receivables, public sector finance or multi-family loans that were TDRs for the period presented above. December 31, 2018 Current loans 30-59 days past due 60-89 days past due 90+ days past due Non- accrual Total Traditional C&I $ 9,011 $ — $ — $ — $ 25,672 $ 34,683 Asset-based lending — — — — 1,276 1,276 Equipment financing 1,905 — 9 — 2,367 4,281 Commercial real estate 11,071 — — — 7,112 18,183 ADC — — — 434 — 434 Residential mortgage 5,688 — 103 — 2,312 8,103 Consumer 7,217 215 69 216 208 7,925 Total $ 34,892 $ 215 $ 181 $ 650 $ 38,947 $ 74,885

Allowance for Loan Losses - (Ta

Allowance for Loan Losses - (Tables)	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Allowance for loan losses activity	Activity in the allowance for loan losses for the three months ended March 31, 2019 and 2018 is summarized below: For the three months ended March 31, 2019 Beginning balance Charge-offs Recoveries Net charge-offs Provision / (credit) Ending balance Traditional C&I $ 14,201 $ (4,839 ) $ 139 $ (4,700 ) $ 8,435 $ 17,936 Asset-based lending 7,979 — — — 594 8,573 Payroll finance 2,738 — 1 1 (639 ) 2,100 Warehouse lending 2,800 — — — (2,107 ) 693 Factored receivables 1,064 (32 ) 121 89 (61 ) 1,092 Equipment financing 12,450 (1,249 ) 131 (1,118 ) 2,994 14,326 Public sector finance 1,739 — — — (605 ) 1,134 Commercial real estate 32,285 (17 ) 9 (8 ) 810 33,087 Multi-family 8,355 — 103 103 201 8,659 ADC 1,769 — — — 143 1,912 Residential mortgage 7,454 (1,085 ) 1 (1,084 ) 555 6,925 Consumer 2,843 (443 ) 243 (200 ) (120 ) 2,523 Total allowance for loan losses $ 95,677 $ (7,665 ) $ 748 $ (6,917 ) $ 10,200 $ 98,960 Annualized net charge-offs to average loans outstanding: 0.14 % For the three months ended March 31, 2018 Beginning balance Charge-offs Recoveries Net charge-offs Provision / (credit) Ending balance Traditional C&I $ 19,072 $ (3,572 ) $ 214 $ (3,358 ) $ 3,696 $ 19,410 Asset-based lending 6,625 — — — (298 ) 6,327 Payroll finance 1,565 — 22 22 (112 ) 1,475 Warehouse lending 3,705 — — — (597 ) 3,108 Factored receivables 1,395 (3 ) 3 — (226 ) 1,169 Equipment financing 4,862 (4,199 ) 72 (4,127 ) 5,837 6,572 Public sector finance 1,797 — — — 109 1,906 Commercial real estate 24,945 (1,353 ) 16 (1,337 ) 614 24,222 Multi-family 3,261 — 3 3 3,483 6,747 ADC 1,680 — — — 352 2,032 Residential mortgage 5,819 (39 ) 15 (24 ) 224 6,019 Consumer 3,181 (125 ) 131 6 (82 ) 3,105 Total allowance for loan losses $ 77,907 $ (9,291 ) $ 476 $ (8,815 ) $ 13,000 $ 82,092 Annualized net charge-offs to average loans outstanding: 0.18 %
Financing receivable credit quality indicators	As of March 31, 2019 , the risk category of gross loans by segment was as follows: Special Mention Substandard Originated Acquired Total Originated Acquired Total March 31, 2019 Traditional C&I $ 7,510 $ 82 $ 7,592 $ 53,421 $ 122 $ 53,543 Asset-based lending 13,228 23,007 36,235 20,164 6,617 26,781 Payroll finance — — — 17,533 — 17,533 Equipment financing 14,231 13,031 27,262 23,538 — 23,538 CRE 10,929 9,940 20,869 43,123 5,559 48,682 Multi-family 22,366 7,598 29,964 35,656 1,793 37,449 ADC — — — 1,223 — 1,223 Residential mortgage 3,212 1,790 5,002 34,427 33,017 67,444 Consumer 934 196 1,130 9,340 3,161 12,501 Total $ 72,410 $ 55,644 $ 128,054 $ 238,425 $ 50,269 $ 288,694 At March 31, 2019 , there were $45,952 of special mention loans and $116,062 of substandard loans that were originally considered acquired loans but were migrated to the originated loans portfolio as they have been designated criticized or classified status or have been placed on non-accrual since the acquisition date. As of December 31, 2018 , the risk category of gross loans by segment was as follows: Special Mention Substandard Originated Acquired Total Originated Acquired Total Traditional C&I $ 12,003 $ 99 $ 12,102 $ 51,903 $ 128 $ 52,031 Asset-based lending 14,033 — 14,033 21,865 — 21,865 Payroll finance 9,682 — 9,682 17,766 — 17,766 Factored receivables — — — 508 — 508 Equipment financing 9,966 — 9,966 21,256 — 21,256 CRE 3,852 10,160 14,012 43,336 8,126 51,462 Multi-family 33,321 10,490 43,811 20,812 3,542 24,354 ADC — — — 434 — 434 Residential mortgage 5,179 2,231 7,410 29,475 36,431 65,906 Consumer 1,919 245 2,164 7,223 3,242 10,465 Total $ 89,955 $ 23,225 $ 113,180 $ 214,578 $ 51,469 $ 266,047

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets - (Tables)	3 Months Ended
	Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of goodwill and intangible assets	The balance of goodwill and other intangible assets for the periods presented were as follows: March 31, December 31, 2019 2018 Goodwill $ 1,657,814 $ 1,613,033 Other intangible assets: Core deposits $ 99,678 $ 104,263 Customer lists 4,541 4,740 Non-compete agreements — 42 Trade name 20,500 20,500 Total $ 124,719 $ 129,545
Future amortization expense	The estimated aggregate future amortization expense for intangible assets remaining as of March 31, 2019 was as follows: Amortization expense Remainder of 2019 $ 14,354 2020 16,800 2021 15,104 2022 13,703 2023 12,322 2024 10,448 Thereafter 21,488 Total $ 104,219

Deposits - (Tables)

Deposits - (Tables)	3 Months Ended
	Mar. 31, 2019
Deposits [Abstract]
Summary of major classification of deposits	Deposit balances at March 31, 2019 and December 31, 2018 were as follows: March 31, December 31, 2019 2018 Non-interest bearing demand $ 4,321,310 $ 4,241,923 Interest bearing demand 4,400,725 4,207,392 Savings 2,358,905 2,382,520 Money market 7,611,522 7,905,382 Certificates of deposit 2,533,177 2,476,931 Total deposits $ 21,225,639 $ 21,214,148
List of Company's Brokered deposits	Brokered deposits at March 31, 2019 and December 31, 2018 were as follows: March 31, December 31, 2019 2018 Interest bearing demand $ 15,320 $ 23,742 Money market 869,175 983,889 CDARs (1) and ICS (2) one way 150,206 150,192 Total brokered deposits $ 1,034,701 $ 1,157,823 1 CDARs are deposits generated through the certificate of deposit account registry service. 2 ICS are deposits generated through the insured cash sweep program.

Borrowings - (Tables)

Borrowings - (Tables)	3 Months Ended
	Mar. 31, 2019
Debt Instruments [Abstract]
Schedule of debt	Our borrowings and weighted average interest rates were as follows for the periods presented: March 31, December 31, 2019 2018 Amount Rate Amount Rate By type of borrowing: FHLB borrowings $ 3,259,507 2.38 % $ 4,838,772 2.40 % Repurchase agreements 27,020 1.22 21,338 1.20 3.50% Senior Notes 173,952 3.19 181,130 3.19 Subordinated Notes 173,001 5.45 172,943 5.45 Total borrowings $ 3,633,480 2.56 % $ 5,214,183 2.52 % By remaining period to maturity: Less than one year $ 2,535,225 2.46 % $ 3,958,635 2.48 % One to two years 824,912 2.30 831,889 2.28 Two to three years 100,342 2.15 250,716 2.04 Greater than five years 173,001 5.45 172,943 5.45 Total borrowings $ 3,633,480 2.56 % $ 5,214,183 2.52 %

Leases - (Tables)

Leases - (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Schedule of Lease Cost	The components of lease expense were as follows: March 31, 2019 Operating lease expense $ 4,943 Sub-lease income (604 ) Net lease expense $ 4,339
Schedule of Operating Lease Liability Maturities	Maturities of lease liabilities were as follows: Remainder of 2019 $ 14,697 2020 19,379 2021 17,823 2022 16,109 2023 14,504 2024 12,703 2025 and thereafter 54,229 Total lease payments 149,444 Interest 21,187 Present value of lease liabilities $ 128,257
Summary of Lease Weighted-Average Terms and Discount Rates	Lease Term and Discount Rate: March 31, 2019 Weighted average remaining lease term (years) 8.71 Weighted average remaining discount rate 3.25 %

Derivatives - (Tables)

Derivatives - (Tables)	3 Months Ended
	Mar. 31, 2019
Derivative Instruments and Hedges, Assets [Abstract]
Summary of derivatives	Summary information as of March 31, 2019 and December 31, 2018 regarding these derivatives is presented below: Notional amount Average maturity (in years) Weighted average fixed rate Weighted average variable rate Fair value March 31, 2019 Included in other assets: Third-party interest rate swap $ 313,515 $ 898 Customer interest rate swap 990,356 32,496 Total $ 1,303,871 5.72 4.69 % 1 m Libor + 2.26% $ 33,394 Included in other liabilities: Third-party interest rate swap $ (990,356 ) $ (10,119 ) Customer interest rate swap (313,515 ) (4,051 ) Total $ (1,303,871 ) 5.72 4.69 % 1 m Libor + 2.26% $ (14,170 ) December 31, 2018 Included in other assets: Third-party interest rate swap $ 516,419 $ 1,963 Customer interest rate swap 556,934 16,252 Total $ 1,073,353 5.90 4.65 % 1 m Libor + 2.29% $ 18,215 Included in other liabilities: Third-party interest rate swap $ (556,934 ) $ (4,351 ) Customer interest rate swap (516,419 ) (8,650 ) Total $ (1,073,353 ) 5.90 4.65 % 1 m Libor + 2.29% $ (13,001 )

Income Taxes - (Tables)

Income Taxes - (Tables)	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Schedule of Effective Income Tax Rate Reconciliation	Actual income tax expense differs from the tax computed based on pre-tax income and the applicable statutory federal tax rate for the following reasons: For the three months ended March 31, 2019 2018 Income before income tax expense $ 129,911 $ 128,328 Tax at federal statutory rate of 21% 27,281 26,948 State and local income taxes, net of federal tax benefit 6,690 6,059 Tax exempt interest, net of disallowed interest (5,253 ) (4,627 ) BOLI income (769 ) (763 ) Low income housing tax credits and other benefits (4,347 ) (2,125 ) Low income housing investment amortization expense 3,810 998 Equity-based stock compensation benefit (106 ) (379 ) FDIC insurance premium limitation 254 486 Other, net 914 2,859 Actual income tax expense $ 28,474 $ 29,456 Effective income tax rate 21.9 % 23.0 %

Stock-Based Compensation - (Tab

Stock-Based Compensation - (Tables)	3 Months Ended
	Mar. 31, 2019
Retirement Benefits [Abstract]
Summary of Company's stock option activity	The following table summarizes the activity in our stock-based compensation plan for the three months ended March 31, 2019 : Non-vested stock awards/stock units outstanding Stock options outstanding Shares available for grant Number of shares Weighted average grant date fair value Number of shares Weighted average exercise price Balance at January 1, 2019 2,318,950 1,333,514 $ 22.12 686,539 $ 11.20 Granted (1,501,511 ) 1,501,511 19.63 — — Stock awards vested (1) (70,353 ) (489,373 ) 19.43 — — Exercised — — — (3,893 ) 14.05 Forfeited 31,431 (31,431 ) 23.07 — — Canceled/expired — — — — — Balance at March 31, 2019 778,517 2,314,221 $ 21.06 682,646 $ 11.18 Exercisable at March 31, 2019 682,646 $ 11.18 (1) The 70,353 shares vested represents performance shares granted in February 2016 to certain executives with a three -year measurement period. These shares vested in the first quarter of 2019 at 150.0% of the target amount granted, which resulted in additional expense of $1,000 .
Schedule of stock-based compensation expense associated with stock options and non-vested stock awards	Stock-based compensation expense associated with stock options and non-vested stock awards and the related income tax benefit are presented below: For the three months ended March 31, 2019 2018 Stock options $ — $ 2 Non-vested stock awards/performance units 5,123 2,852 Total $ 5,123 $ 2,854 Income tax benefit 1,127 665 Proceeds from stock option exercises 55 329
Unrecognized stock-based compensation expense	Unrecognized stock-based compensation expense as of March 31, 2019 was as follows: March 31, 2019 Stock options $ — Non-vested stock awards/performance units 42,619 Total $ 42,619

Pension and Other Post-Retire_2

Pension and Other Post-Retirement Benefits - (Tables)	3 Months Ended
	Mar. 31, 2019
Retirement Benefits [Abstract]
Schedule of net pension (benefit) expense and post-retirement expense	Total pension and other post-retirement benefits expense is comprised of the following for the periods presented below: For the three months ended March 31, 2019 March 31, 2018 Pension Benefits Other Post Retirement Benefits Pension Benefits Other Post Retirement Benefits Service cost $ — $ 15 $ — $ 21 Interest cost 2,293 305 2,122 273 Expected return on plan assets (2,394 ) — (3,353 ) — Net amortization and deferral — (82 ) — — Net periodic pension and other post-retirement (benefit) expense $ (101 ) $ 238 $ (1,231 ) $ 294

Non-Interest Income and Other_2

Non-Interest Income and Other Non-Interest Expense - (Tables)	3 Months Ended
	Mar. 31, 2019
Other Income and Expenses [Abstract]
Schedule of Other Non-interest Expense	Other non-interest expense items for the three months ended March 31, 2019 and 2018 , respectively, are presented in the following table: For the three months ended March 31, 2019 2018 Other non-interest expense: Professional fees $ 4,148 $ 3,502 Advertising and promotion 991 1,543 Telephone 1,895 1,558 Operational losses 583 1,275 Insurance & surety bond premium 1,062 571 Pension plan expense (benefit) 74 (1,008 ) Other 8,191 5,833 Total other non-interest expense $ 16,944 $ 13,274

Earnings Per Common Share - (Ta

Earnings Per Common Share - (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Computation of basic and diluted earnings per share	The following is a summary of the calculation of earnings per common share (“EPS”): For the three months ended March 31, 2019 2018 Net income available to common stockholders $ 99,448 $ 96,873 Weighted average common shares outstanding for computation of basic EPS 213,157,090 224,730,686 Common-equivalent shares due to the dilutive effect of stock options and unvested performance share grants (1) 348,752 533,461 Weighted average common shares for computation of diluted EPS 213,505,842 225,264,147 EPS: Basic $ 0.47 $ 0.43 Diluted 0.47 0.43 Weighted average common shares that could be exercised that were anti-dilutive for the period (2) — — (1) Represents incremental shares computed using the treasury stock method. (2) Anti-dilutive shares are not included in determining diluted EPS. There were no anti-dilutive shares in the three months ended March 31, 2019 or March 31, 2018 .

Stockholders' Equity - (Tables)

Stockholders' Equity - (Tables)	3 Months Ended
	Mar. 31, 2019
Stockholders' Equity Note [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	The following tables present actual and required capital ratios as of March 31, 2019 and December 31, 2018 for us and the Bank under the Basel III Capital Rules. The Basel III Capital Rules became fully phased-in on January 1, 2019. The minimum required capital amounts presented include the minimum required capital levels as of December 31, 2018 include the minimum required capital levels applicable as of that date as well as the minimum required capital levels as of January 1, 2019 when the Basel III Capital Rules became fully phased-in. Capital levels required to be considered well-capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. Actual Minimum capital required - Basel III Required to be considered well- capitalized Capital amount Ratio Capital amount Ratio Capital amount Ratio March 31, 2019 Common equity tier 1 to RWA: Sterling National Bank $ 2,780,903 13.13 % $ 1,483,071 7.00 % $ 1,377,138 6.50 % Sterling Bancorp 2,539,554 11.98 1,484,270 7.00 N/A N/A Tier 1 capital to RWA: Sterling National Bank 2,780,903 13.13 % 1,800,872 8.50 % 1,694,939 8.00 % Sterling Bancorp 2,677,772 12.63 1,802,328 8.50 N/A N/A Total capital to RWA: Sterling National Bank 3,053,518 14.41 % 2,224,607 10.50 % 2,118,673 10.00 % Sterling Bancorp 2,922,209 13.78 2,226,405 10.50 N/A N/A Tier 1 leverage ratio: Sterling National Bank 2,780,903 9.58 % 1,161,717 4.00 % 1,452,147 5.00 % Sterling Bancorp 2,677,772 9.21 1,162,518 4.00 N/A N/A Actual Minimum capital required - Basel III phase-in schedule Minimum capital required - Basel III fully phased-in Required to be considered well- capitalized Capital amount Ratio Capital amount Ratio Capital amount Ratio Capital amount Ratio December 31, 2018 Common equity tier 1 to RWA: Sterling National Bank $ 2,915,484 13.55 % $ 1,371,480 6.375 % $ 1,505,939 7.00 % $ 1,398,372 6.50 % Sterling Bancorp 2,649,593 12.31 1,372,457 6.375 1,507,011 7.00 N/A N/A Tier 1 capital to RWA: Sterling National Bank 2,915,484 13.55 % 1,694,181 7.875 % 1,828,640 8.50 % 1,721,073 8.00 % Sterling Bancorp 2,788,016 12.95 1,695,388 7.875 1,829,942 8.50 N/A N/A Total capital to RWA: Sterling National Bank 3,184,758 14.80 % 2,124,450 9.875 % 2,258,908 10.50 % 2,151,341 10.00 % Sterling Bancorp 3,027,124 14.06 2,125,963 9.875 2,260,517 10.50 N/A N/A Tier 1 leverage ratio: Sterling National Bank 2,915,484 9.94 % 1,172,964 4.00 % 1,172,964 4.00 % 1,466,206 5.00 % Sterling Bancorp 2,788,016 9.50 1,173,883 4.00 1,173,883 4.00 N/A N/A

Commitments and Contingencies -

Commitments and Contingencies - (Tables)	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Schedule of off-balance-sheet financial instruments	The contractual or notional amounts of these instruments, which reflect the extent of our involvement in particular classes of off-balance sheet financial instruments, are summarized as follows: March 31, December 31, 2019 2018 Loan origination commitments $ 414,545 $ 417,027 Unused lines of credit 1,823,040 1,737,315 Letters of credit 300,123 287,779

Fair Value Measurements - (Tabl

Fair Value Measurements - (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Estimated fair value on a recurring basis	A summary of assets and liabilities at March 31, 2019 and December 31, 2018 , respectively, measured at estimated fair value on a recurring basis, is as follows: March 31, 2019 Fair value Level 1 inputs Level 2 inputs Level 3 inputs Assets: Investment securities available for sale: Residential MBS (1) : Agency-backed $ 2,051,304 $ — $ 2,051,304 $ — CMOs (2) /Other MBS 529,510 — 529,510 — Total residential MBS 2,580,814 — 2,580,814 — Other securities: Federal agencies 216,272 — 216,272 — Corporate 368,447 — 368,447 — State and municipal 682,266 — 682,266 — Total other securities 1,266,985 — 1,266,985 — Total available for sale securities 3,847,799 — 3,847,799 — Swaps 33,394 — 33,394 — Total assets $ 3,881,193 $ — $ 3,881,193 $ — Liabilities: Swaps $ 14,170 $ — $ 14,170 $ — Total liabilities $ 14,170 $ — $ 14,170 $ — December 31, 2018 Fair value Level 1 inputs Level 2 inputs Level 3 inputs Assets: Investment securities available for sale: Residential MBS (1) : Agency-backed $ 2,268,851 $ — $ 2,268,851 $ — CMOs (2) /Other MBS 574,770 — 574,770 — Total residential MBS 2,843,621 — 2,843,621 — Federal agencies 273,973 — 273,973 — Corporate bonds 527,965 — 527,965 — State and municipal 225,004 — 225,004 — Total other securities 1,026,942 — 1,026,942 — Total available for sale securities 3,870,563 — 3,870,563 — Swaps 18,215 — 18,215 — Total assets $ 3,888,778 $ — $ 3,888,778 $ — Liabilities: Swaps $ 13,001 $ — $ 13,001 $ — Total liabilities $ 13,001 $ — $ 13,001 $ — (1) Residential MBS are debt securities whose cash flows come from residential mortgage and consumer loans, such as mortgages and HELOCs. A residential MBS is comprised of a pool of mortgage loans created by financial institutions, including governmental agencies. The cash flows from each mortgage loan included in the pool are structured through a special purpose entity into various classes and tranches, which then issues securities backed by those cash flows to investors. (2) CMOs are debt securities that are collateralized by a specific pool of residential mortgage loans, in which the issuer of the CMOs can direct the payments of principal and interest received on the underlying collateral to achieve specific investor cash flow objectives. The Bank generally acquires planned-amortization class securities and CMOs with a sequential pay structure in order to manage the duration and extension risk inherent in these securities.
Impaired loans measured at estimated fair value on nonrecurring basis	A summary of the classes with impaired loans at March 31, 2019 and December 31, 2018 , respectively, is set forth below: March 31, 2019 Fair value Level 1 inputs Level 2 inputs Level 3 inputs Traditional C&I $ 20,828 $ — $ — $ 20,828 Asset-based lending 1,294 — — 1,294 Equipment financing 252 — — 252 Commercial real estate 10,592 — — 10,592 Multi-family 1,183 — — 1,183 Residential mortgage 1,133 — — 1,133 Total impaired loans measured at fair value $ 35,282 $ — $ — $ 35,282 December 31, 2018 Fair value Level 1 inputs Level 2 inputs Level 3 inputs Traditional C&I $ 28,780 $ — $ — $ 28,780 Commercial real estate 10,725 — — 10,725 Multi-family 1,210 — — 1,210 Residential mortgage 769 — — 769 Total impaired loans measured at fair value $ 41,484 $ — $ — $ 41,484
Carrying amounts and estimated fair value of financial assets and liabilities	The following is a summary of the carrying amounts and estimated fair value of financial assets and liabilities (none of which were held for trading purposes) as of December 31, 2018 : December 31, 2018 Carrying amount Level 1 inputs Level 2 inputs Level 3 inputs Financial assets: Cash and cash equivalents $ 438,110 $ 438,110 $ — $ — Securities available for sale 3,870,563 — 3,870,563 — Securities held to maturity 2,796,617 — 2,740,522 — Loans held for sale 1,565,979 — 1,565,979 — Portfolio loans, net 19,122,853 — — 19,033,743 Accrued interest receivable on securities 38,722 — 38,722 — Accrued interest receivable on loans 68,389 — — 68,389 FHLB stock and FRB stock 369,690 — — — Swaps 18,215 — 18,215 — Financial liabilities: Non-maturity deposits (18,737,217 ) (18,737,217 ) — — Certificates of deposit (2,476,931 ) — (2,447,534 ) — FHLB borrowings (4,838,772 ) — (4,821,652 ) — Other borrowings (21,338 ) — (21,337 ) — Senior Notes (181,130 ) — (179,786 ) — Subordinated Notes (172,943 ) — (177,481 ) — Mortgage escrow funds (72,891 ) — (64,074 ) — Accrued interest payable on deposits (3,191 ) — (3,191 ) — Accrued interest payable on borrowings (11,823 ) — (11,823 ) — Swaps (13,001 ) — (13,001 ) — The following is a summary of the carrying amounts and estimated fair value of financial assets and liabilities (none of which were held for trading purposes) as of March 31, 2019 : March 31, 2019 Carrying amount Level 1 inputs Level 2 inputs Level 3 inputs Financial assets: Cash and cash equivalents $ 314,255 $ 314,255 $ — $ — Securities available for sale 3,847,799 — 3,847,799 — Securities held to maturity 2,067,251 — 2,079,057 — Loans held for sale 248,972 — 248,972 — Portfolio loans, net 19,809,513 — — 19,859,037 Accrued interest receivable on securities 39,419 — 39,419 — Accrued interest receivable on loans 76,345 — — 76,345 FHLB stock and FRB stock 298,455 — — — Swaps 33,394 — 33,394 — Financial liabilities: Non-maturity deposits (18,692,462 ) (18,692,462 ) — — Certificates of deposit (2,533,177 ) — (2,513,906 ) — FHLB borrowings (3,259,507 ) — (3,250,738 ) — Other borrowings (27,020 ) — (27,018 ) — Senior Notes (173,952 ) — (179,634 ) — Subordinated Notes (173,001 ) — (175,388 ) — Mortgage escrow funds (102,036 ) — (102,036 ) — Accrued interest payable on deposits (4,222 ) — (4,222 ) — Accrued interest payable on borrowings (14,751 ) — (14,751 ) — Swaps (14,170 ) — (14,170 ) —

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss - (Tables)	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	Components of accumulated other comprehensive loss were as follows as of the dates shown below: March 31, December 31, 2019 2018 Net unrealized holding loss on available for sale securities $ (27,055 ) $ (103,756 ) Related income tax benefit 7,478 28,679 Available for sale securities, net of tax (19,577 ) (75,077 ) Net unrealized holding loss on securities transferred to held to maturity (1,101 ) (3,518 ) Related income tax benefit 304 972 Securities transferred to held to maturity, net of tax (797 ) (2,546 ) Net unrealized holding gain on retirement plans 18,783 15,900 Related income tax benefit (5,019 ) (4,222 ) Retirement plans, net of tax 13,764 11,678 Accumulated other comprehensive loss $ (6,610 ) $ (65,945 ) The following table presents the changes in each component of accumulated other comprehensive loss for the three months ended March 31, 2019 and 2018 : Net unrealized holding (loss) gain on available for sale securities Net unrealized holding (loss) gain on securities transferred to held to maturity Net unrealized holding gain (loss) on retirement plans Total For the three months ended March 31, 2019 Balance beginning of the period $ (75,077 ) $ (2,546 ) $ 11,678 $ (65,945 ) Other comprehensive gain before reclassification 54,508 — — 54,508 Securities reclassified from held to maturity to available for sale (8,548 ) — — (8,548 ) Amounts reclassified from accumulated other comprehensive loss 9,540 1,749 2,086 13,375 Total other comprehensive income 55,500 1,749 2,086 59,335 Balance at end of period $ (19,577 ) $ (797 ) $ 13,764 $ (6,610 ) For the three months ended March 31, 2018 Balance beginning of the period $ (22,324 ) $ (2,678 ) $ (1,164 ) $ (26,166 ) Reclassification of the stranded income tax effects from the enactment of the Tax Cuts and Jobs Act of 2017 from accumulated other comprehensive loss (4,376 ) (525 ) (228 ) (5,129 ) Other comprehensive (loss) before reclassification (53,830 ) — — (53,830 ) Amounts reclassified from accumulated other comprehensive loss 5,421 169 491 6,081 Total other comprehensive (loss) income (48,409 ) 169 491 (47,749 ) Balance at end of period $ (75,109 ) $ (3,034 ) $ (901 ) $ (79,044 ) Location in consolidated income statements where reclassification from accumulated other comprehensive loss is included Net loss on sale of securities Interest income on securities Other non-interest expense

Basis of Financial Statement _3

Basis of Financial Statement Presentation - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets	$ 122,084	$ 125,394
Operating Lease liabilities	128,257	130,860
Book value of available-for-sale securities transfered from held to maturity	3,874,854		$ 3,974,319
Fair value of available-for-sale securities transfered from held to maturity	3,847,799		3,870,563
Book value of held to maturity securities transfered to available-for-sale	2,067,251		2,796,617
Fair value of held to maturity securities transfered to available-for-sale	$ 2,079,057		2,740,522
ASU 2017-12
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of available-for-sale securities transfered from held to maturity		720,440
Fair value of available-for-sale securities transfered from held to maturity		708,627
Book value of held to maturity securities transfered to available-for-sale		720,440	720,440
Fair value of held to maturity securities transfered to available-for-sale		$ 708,627	$ 708,627

Acquisitions - (Details)

Acquisitions - (Details) - USD ($) $ in Thousands	Feb. 28, 2019	Apr. 02, 2018	Mar. 31, 2019
Woodforest National Bank
Business Acquisition [Line Items]
Consideration paid	$ 515,692
Premium paid for loans receivable, percentage of gross loans	3.75%
Unpaid principal balance of loans acquired	$ 18,674
Restructuring and integration costs	3,344
Advantage Funding
Business Acquisition [Line Items]
Consideration paid		$ 502,052
Outstanding loans and leases held by acquiree at acquisition date		$ 457,638
Premium paid for loans receivable, percentage of gross loans		4.50%
Restructuring and integration costs			$ 4,396
Percentage of interest acquired		100.00%
Loan premium		$ 20,300
Estimate of Fair Value Measurement | Woodforest National Bank
Business Acquisition [Line Items]
Outstanding loans and leases held by acquiree at acquisition date	471,878
Estimate of Fair Value Measurement | Advantage Funding
Business Acquisition [Line Items]
Outstanding loans and leases held by acquiree at acquisition date		$ 439,622
Equipment financing | Woodforest National Bank
Business Acquisition [Line Items]
Outstanding loans and leases held by acquiree at acquisition date	166,143
Asset-based lending | Woodforest National Bank
Business Acquisition [Line Items]
Outstanding loans and leases held by acquiree at acquisition date	$ 331,842

Securities - Amortized Cost to

Securities - Amortized Cost to Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Available for Sale
Amortized cost	$ 3,874,854	$ 3,974,319
Gross unrealized gains	18,345	3,822
Gross unrealized losses	(45,400)	(107,578)
Available for sale, at fair value	3,847,799	3,870,563
Held to Maturity
Amortized cost	2,067,251	2,796,617
Gross unrecognized gains	18,145	3,369
Gross unrecognized losses	(6,339)	(59,464)
Securities held to maturity, fair value	2,079,057	2,740,522
Agency-backed
Available for Sale
Amortized cost	2,068,142	2,328,870
Gross unrealized gains	6,989	2,347
Gross unrealized losses	(23,827)	(62,366)
Available for sale, at fair value	2,051,304	2,268,851
Held to Maturity
Amortized cost	190,516	318,590
Gross unrecognized gains	88	73
Gross unrecognized losses	(2,061)	(8,605)
Securities held to maturity, fair value	188,543	310,058
CMOs/Other MBS
Available for Sale
Amortized cost	545,415	596,868
Gross unrealized gains	2	11
Gross unrealized losses	(15,907)	(22,109)
Available for sale, at fair value	529,510	574,770
Held to Maturity
Amortized cost	0	27,780
Gross unrecognized gains	0	2
Gross unrecognized losses	0	(765)
Securities held to maturity, fair value	0	27,017
Total residential MBS
Available for Sale
Amortized cost	2,613,557	2,925,738
Gross unrealized gains	6,991	2,358
Gross unrealized losses	(39,734)	(84,475)
Available for sale, at fair value	2,580,814	2,843,621
Held to Maturity
Amortized cost	190,516	346,370
Gross unrecognized gains	88	75
Gross unrecognized losses	(2,061)	(9,370)
Securities held to maturity, fair value	188,543	337,075
Federal agencies
Available for Sale
Amortized cost	216,306	283,825
Gross unrealized gains	1,059	0
Gross unrealized losses	(1,093)	(9,852)
Available for sale, at fair value	216,272	273,973
Held to Maturity
Amortized cost	59,168	59,065
Gross unrecognized gains	370	160
Gross unrecognized losses	(13)	(128)
Securities held to maturity, fair value	59,525	59,097
Corporate
Available for Sale
Amortized cost	364,774	537,210
Gross unrealized gains	5,722	1,162
Gross unrealized losses	(2,049)	(10,407)
Available for sale, at fair value	368,447	527,965
Held to Maturity
Amortized cost	19,942	68,512
Gross unrecognized gains	117	431
Gross unrecognized losses	(55)	(392)
Securities held to maturity, fair value	20,004	68,551
State and municipal
Available for Sale
Amortized cost	680,217	227,546
Gross unrealized gains	4,573	302
Gross unrealized losses	(2,524)	(2,844)
Available for sale, at fair value	682,266	225,004
Held to Maturity
Amortized cost	1,780,375	2,305,420
Gross unrecognized gains	17,461	2,654
Gross unrecognized losses	(4,206)	(49,562)
Securities held to maturity, fair value	1,793,630	2,258,512
Other
Available for Sale
Amortized cost	0	0
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Available for sale, at fair value	0	0
Held to Maturity
Amortized cost	17,250	17,250
Gross unrecognized gains	109	49
Gross unrecognized losses	(4)	(12)
Securities held to maturity, fair value	17,355	17,287
Total other securities
Available for Sale
Amortized cost	1,261,297	1,048,581
Gross unrealized gains	11,354	1,464
Gross unrealized losses	(5,666)	(23,103)
Available for sale, at fair value	1,266,985	1,026,942
Held to Maturity
Amortized cost	1,876,735	2,450,247
Gross unrecognized gains	18,057	3,294
Gross unrecognized losses	(4,278)	(50,094)
Securities held to maturity, fair value	$ 1,890,514	$ 2,403,447

Securities - Transfered to Avai

Securities - Transfered to Available-For-Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of held to maturity securities transfered to available-for-sale	$ 2,067,251		$ 2,796,617
Fair value of held to maturity securities transfered to available-for-sale	2,079,057		2,740,522
Agency-backed
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of held to maturity securities transfered to available-for-sale	190,516		318,590
Fair value of held to maturity securities transfered to available-for-sale	188,543		310,058
CMOs/Other MBS
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of held to maturity securities transfered to available-for-sale	0		27,780
Fair value of held to maturity securities transfered to available-for-sale	0		27,017
Total residential MBS
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of held to maturity securities transfered to available-for-sale	190,516		346,370
Fair value of held to maturity securities transfered to available-for-sale	188,543		337,075
Corporate
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of held to maturity securities transfered to available-for-sale	19,942		68,512
Fair value of held to maturity securities transfered to available-for-sale	20,004		68,551
State and municipal
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of held to maturity securities transfered to available-for-sale	1,780,375		2,305,420
Fair value of held to maturity securities transfered to available-for-sale	$ 1,793,630		2,258,512
ASU 2017-12
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of held to maturity securities transfered to available-for-sale		$ 720,440	720,440
Fair value of held to maturity securities transfered to available-for-sale		708,627	$ 708,627
ASU 2017-12 | Agency-backed
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of held to maturity securities transfered to available-for-sale		125,343
Fair value of held to maturity securities transfered to available-for-sale		121,510
ASU 2017-12 | CMOs/Other MBS
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of held to maturity securities transfered to available-for-sale		27,780
Fair value of held to maturity securities transfered to available-for-sale		27,017
ASU 2017-12 | Total residential MBS
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of held to maturity securities transfered to available-for-sale		153,123
Fair value of held to maturity securities transfered to available-for-sale		148,527
ASU 2017-12 | Corporate
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of held to maturity securities transfered to available-for-sale		49,001
Fair value of held to maturity securities transfered to available-for-sale		48,607
ASU 2017-12 | State and municipal
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of held to maturity securities transfered to available-for-sale		518,316
Fair value of held to maturity securities transfered to available-for-sale		$ 511,493

Securities - Future Maturity (D

Securities - Future Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Amortized cost
Available-for-sale, one year or less, amortized cost	$ 11,554
Available-for-sale, one to five years, amortized cost	134,689
Available-for-sale, five to ten years, amortized cost	816,088
Available-for-sale, greater than ten years, amortized cost	298,966
Available-for-sale, with a stated maturity date, amortized cost	1,261,297
Available-for-sale, without single maturity date, amortized cost	2,613,557
Amortized cost	3,874,854	$ 3,974,319
Fair value
Available-for-sale, one year or less, fair value	11,568
Available-for-sale, one to five years, fair value	134,062
Available-for-sale, five to ten years, fair value	822,318
Available-for-sale, greater than ten years, fair value	299,037
Available-for-sale, with a stated maturity date, fair value	1,266,985
Available-for-sale, without single maturity date, fair value	2,580,814
Securities available for sale	3,847,799	3,870,563
Amortized cost
Held-to-maturity, one year or less, amortized cost	65,358
Held-to-maturity, one to five years, amortized cost	98,556
Held-to-maturity, five to ten years, amortized cost	210,940
Held-to-maturity, greater than ten years, amortized cost	1,501,881
Held-to-maturity, with a stated maturity date, amortized cost	1,876,735
Held-to-maturity, without single maturity date, amortized cost	190,516
Amortized cost	2,067,251	2,796,617
Fair value
Held-to-maturity, one year or less, fair value	65,471
Held-to-maturity, one to five years, fair value	99,359
Held-to-maturity, five to ten years, fair value	214,695
Held-to-maturity, greater than ten years, fair value	1,510,989
Held-to-maturity, with a stated maturity date, fair value	1,890,514
Held-to-maturity, without single maturity date, fair value	188,543
Held-to-maturity, fair value	$ 2,079,057	$ 2,740,522

Securities - Sale of Securities

Securities - Sale of Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Available for Sale
Proceeds from sales	$ 738,751	$ 117,810
Gross realized gains	4,355	1
Gross realized losses	(17,539)	(5,422)
Income tax benefit on realized net losses	$ (3,644)	$ (1,260)

Securities - Available-for-sale

Securities - Available-for-sale Securities with Unrealized Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	$ 337,462	$ 403,179
Unrealized losses, less than 12 months, accumulated loss	(3,373)	(4,880)
Fair value, 12 months or longer	2,308,390	3,098,917
Unrealized losses, 12 months or longer	(42,028)	(102,698)
Fair value, total	2,645,852	3,502,096
Unrealized losses, total	(45,401)	(107,578)
Agency-backed
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	95,470	156,787
Unrealized losses, less than 12 months, accumulated loss	(1,209)	(536)
Fair value, 12 months or longer	1,509,947	1,955,056
Unrealized losses, 12 months or longer	(22,618)	(61,830)
Fair value, total	1,605,417	2,111,843
Unrealized losses, total	(23,827)	(62,366)
CMOs/Other MBS
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	0	94
Unrealized losses, less than 12 months, accumulated loss	0	(2)
Fair value, 12 months or longer	526,178	574,053
Unrealized losses, 12 months or longer	(15,907)	(22,107)
Fair value, total	526,178	574,147
Unrealized losses, total	(15,907)	(22,109)
Total residential MBS
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	95,470	156,881
Unrealized losses, less than 12 months, accumulated loss	(1,209)	(538)
Fair value, 12 months or longer	2,036,125	2,529,109
Unrealized losses, 12 months or longer	(38,525)	(83,937)
Fair value, total	2,131,595	2,685,990
Unrealized losses, total	(39,734)	(84,475)
Federal agencies
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	0	0
Unrealized losses, less than 12 months, accumulated loss	0	0
Fair value, 12 months or longer	88,805	273,973
Unrealized losses, 12 months or longer	(1,093)	(9,852)
Fair value, total	88,805	273,973
Unrealized losses, total	(1,093)	(9,852)
Corporate
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	23,201	230,126
Unrealized losses, less than 12 months, accumulated loss	(317)	(4,278)
Fair value, 12 months or longer	84,236	119,869
Unrealized losses, 12 months or longer	(1,733)	(6,129)
Fair value, total	107,437	349,995
Unrealized losses, total	(2,050)	(10,407)
State and municipal
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	218,791	16,172
Unrealized losses, less than 12 months, accumulated loss	(1,847)	(64)
Fair value, 12 months or longer	99,224	175,966
Unrealized losses, 12 months or longer	(677)	(2,780)
Fair value, total	318,015	192,138
Unrealized losses, total	(2,524)	(2,844)
Total other securities
Debt Securities, Available-for-sale [Line Items]
Fair value, less than 12 months	241,992	246,298
Unrealized losses, less than 12 months, accumulated loss	(2,164)	(4,342)
Fair value, 12 months or longer	272,265	569,808
Unrealized losses, 12 months or longer	(3,503)	(18,761)
Fair value, total	514,257	816,106
Unrealized losses, total	$ (5,667)	$ (23,103)

Securities - Held to Maturity S

Securities - Held to Maturity Securities with Unrealized Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of Held-to-maturity Securities [Line Items]
Fair value, less than 12 months	$ 7,816	$ 204,325
Unrecognized losses, less than 12 months	(6)	(1,270)
Fair value, 12 months or longer	594,327	2,217,967
Unrecognized losses, 12 months or longer	(6,333)	(58,194)
Fair value, total	602,143	2,422,292
Unrecognized losses, total	(6,339)	(59,464)
Agency-backed
Schedule of Held-to-maturity Securities [Line Items]
Fair value, less than 12 months	0	25,003
Unrecognized losses, less than 12 months	0	(147)
Fair value, 12 months or longer	159,577	273,974
Unrecognized losses, 12 months or longer	(2,061)	(8,458)
Fair value, total	159,577	298,977
Unrecognized losses, total	(2,061)	(8,605)
CMOs/Other MBS
Schedule of Held-to-maturity Securities [Line Items]
Fair value, less than 12 months	0	101
Unrecognized losses, less than 12 months	0	(2)
Fair value, 12 months or longer	0	25,066
Unrecognized losses, 12 months or longer	0	(763)
Fair value, total	0	25,167
Unrecognized losses, total	0	(765)
Total residential MBS
Schedule of Held-to-maturity Securities [Line Items]
Fair value, less than 12 months	0	25,104
Unrecognized losses, less than 12 months	0	(149)
Fair value, 12 months or longer	159,577	299,040
Unrecognized losses, 12 months or longer	(2,061)	(9,221)
Fair value, total	159,577	324,144
Unrecognized losses, total	(2,061)	(9,370)
Federal agencies
Schedule of Held-to-maturity Securities [Line Items]
Fair value, less than 12 months	0	29,485
Unrecognized losses, less than 12 months	0	(95)
Fair value, 12 months or longer	14,824	4,908
Unrecognized losses, 12 months or longer	(13)	(33)
Fair value, total	14,824	34,393
Unrecognized losses, total	(13)	(128)
Corporate
Schedule of Held-to-maturity Securities [Line Items]
Fair value, less than 12 months	0	21,859
Unrecognized losses, less than 12 months	0	(137)
Fair value, 12 months or longer	9,887	16,261
Unrecognized losses, 12 months or longer	(55)	(255)
Fair value, total	9,887	38,120
Unrecognized losses, total	(55)	(392)
State and municipal
Schedule of Held-to-maturity Securities [Line Items]
Fair value, less than 12 months	2,820	118,389
Unrecognized losses, less than 12 months	(2)	(877)
Fair value, 12 months or longer	410,039	1,897,758
Unrecognized losses, 12 months or longer	(4,204)	(48,685)
Fair value, total	412,859	2,016,147
Unrecognized losses, total	(4,206)	(49,562)
Other
Schedule of Held-to-maturity Securities [Line Items]
Fair value, less than 12 months	4,996	9,488
Unrecognized losses, less than 12 months	(4)	(12)
Fair value, 12 months or longer	0	0
Unrecognized losses, 12 months or longer	0	0
Fair value, total	4,996	9,488
Unrecognized losses, total	(4)	(12)
Total other securities
Schedule of Held-to-maturity Securities [Line Items]
Fair value, less than 12 months	7,816	179,221
Unrecognized losses, less than 12 months	(6)	(1,121)
Fair value, 12 months or longer	434,750	1,918,927
Unrecognized losses, 12 months or longer	(4,272)	(48,973)
Fair value, total	442,566	2,098,148
Unrecognized losses, total	$ (4,278)	$ (50,094)

Securities - Narrative (Details

Securities - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)security	Jan. 01, 2019USD ($)	Dec. 31, 2018USD ($)
Investments, Debt and Equity Securities [Abstract]
Number of available for sale securities which were in continuous unrealized loss position for less than 12 months | security	187
Number of available for sale securities which were in continuous unrealized loss position for 12 months or more | security	278
Number of held to maturity securities which were in continuous unrealized loss position for less than 12 months | security	6
Number of held to maturity securities which were in continuous unrealized loss position for 12 months or more | security	154
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of available-for-sale securities transfered from held to maturity	$ 3,874,854		$ 3,974,319
Fair value of available-for-sale securities transfered from held to maturity	3,847,799		$ 3,870,563
Securities sold to raise liquidity	$ 751,935
ASU 2017-12
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Book value of available-for-sale securities transfered from held to maturity		$ 720,440
Fair value of available-for-sale securities transfered from held to maturity		$ 708,627

Securities - Securities Pledged

Securities - Securities Pledged for Borrowings (Details) - Collateral Pledged - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total securities pledged	$ 2,439,842	$ 2,203,409
Federal Home Loan Bank Borrowings
Financial Instruments Owned and Pledged as Collateral [Line Items]
Available-for-sale, pledged as collateral	27,020	12,206
Held-to-maturity securities pledged as collateral	1,503	34,996
Municipal Deposits
Financial Instruments Owned and Pledged as Collateral [Line Items]
Available-for-sale, pledged as collateral	1,489,651	817,306
Held-to-maturity securities pledged as collateral	$ 921,668	$ 1,338,901

Portfolio Loans - Composition o

Portfolio Loans - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	$ 19,908,473	$ 19,218,530
Allowance for loan losses	(98,960)	(95,677)	$ (82,092)	$ (77,907)
Portfolio loans, net	19,809,513	19,122,853
Traditional C&I
Components of loan portfolio, excluding loans held for sale
Allowance for loan losses	(17,936)	(14,201)	(19,410)	(19,072)
Asset-based lending
Components of loan portfolio, excluding loans held for sale
Allowance for loan losses	(8,573)	(7,979)	(6,327)	(6,625)
Payroll finance
Components of loan portfolio, excluding loans held for sale
Allowance for loan losses	(2,100)	(2,738)	(1,475)	(1,565)
Warehouse lending
Components of loan portfolio, excluding loans held for sale
Allowance for loan losses	(693)	(2,800)	(3,108)	(3,705)
Factored receivables
Components of loan portfolio, excluding loans held for sale
Allowance for loan losses	(1,092)	(1,064)	(1,169)	(1,395)
Equipment financing
Components of loan portfolio, excluding loans held for sale
Allowance for loan losses	(14,326)	(12,450)	(6,572)	(4,862)
Public sector finance
Components of loan portfolio, excluding loans held for sale
Allowance for loan losses	(1,134)	(1,739)	(1,906)	(1,797)
ADC
Components of loan portfolio, excluding loans held for sale
Allowance for loan losses	(1,912)	(1,769)	(2,032)	(1,680)
Residential mortgage
Components of loan portfolio, excluding loans held for sale
Allowance for loan losses	(6,925)	(7,454)	(6,019)	(5,819)
Consumer
Components of loan portfolio, excluding loans held for sale
Allowance for loan losses	(2,523)	(2,843)	$ (3,105)	$ (3,181)
Commercial loans portfolio segment
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	17,072,075	16,207,681
Commercial loans portfolio segment | Commercial and industrial
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	7,265,187	6,533,386
Commercial loans portfolio segment | Commercial and industrial | Traditional C&I
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	2,457,211	2,396,182
Commercial loans portfolio segment | Commercial and industrial | Asset-based lending
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	1,085,572	792,935
Commercial loans portfolio segment | Commercial and industrial | Payroll finance
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	204,610	227,452
Commercial loans portfolio segment | Commercial and industrial | Warehouse lending
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	1,022,811	782,646
Commercial loans portfolio segment | Commercial and industrial | Factored receivables
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	263,033	258,383
Commercial loans portfolio segment | Commercial and industrial | Equipment financing
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	1,335,717	1,215,042
Commercial loans portfolio segment | Commercial and industrial | Public sector finance
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	896,233	860,746
Commercial loans portfolio segment | Real estate
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	9,806,888	9,674,295
Commercial loans portfolio segment | Real estate | Commercial real estate
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	4,822,921	4,642,417
Commercial loans portfolio segment | Real estate | Multi-family | Multi-family
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	4,693,092	4,764,124
Commercial loans portfolio segment | Real estate | ADC
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	290,875	267,754
Residential mortgage portfolio segment | Residential mortgage
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	2,549,284	2,705,226
Consumer portfolio segment | Consumer
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	287,114	305,623
Originated Loan
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	13,453,425	12,882,655
Allowance for loan losses	(98,960)	(95,677)
Portfolio loans, net	13,354,465	12,786,978
Originated Loan | Commercial loans portfolio segment
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	12,735,076	12,107,373
Originated Loan | Commercial loans portfolio segment | Commercial and industrial
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	6,498,152	6,157,044
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Traditional C&I
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	2,386,984	2,321,131
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Asset-based lending
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	793,598	792,935
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Payroll finance
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	204,610	227,452
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Warehouse lending
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	1,022,811	782,646
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Factored receivables
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	263,033	258,383
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Equipment financing
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	930,883	913,751
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Public sector finance
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	896,233	860,746
Originated Loan | Commercial loans portfolio segment | Real estate
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	6,236,924	5,950,329
Originated Loan | Commercial loans portfolio segment | Real estate | Commercial real estate
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	4,391,136	4,154,956
Originated Loan | Commercial loans portfolio segment | Real estate | Multi-family | Multi-family
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	1,554,913	1,527,619
Originated Loan | Commercial loans portfolio segment | Real estate | ADC
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	290,875	267,754
Originated Loan | Residential mortgage portfolio segment | Residential mortgage
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	571,594	621,471
Originated Loan | Consumer portfolio segment | Consumer
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	146,755	153,811
Acquired Loan
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	6,455,048	6,335,875
Allowance for loan losses	0	0
Portfolio loans, net	6,455,048	6,335,875
Acquired Loan | Commercial loans portfolio segment
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	4,336,999	4,100,308
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	767,035	376,342
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Traditional C&I
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	70,227	75,051
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Asset-based lending
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	291,974	0
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Payroll finance
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	0	0
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Warehouse lending
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	0	0
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Factored receivables
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	0	0
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Equipment financing
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	404,834	301,291
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Public sector finance
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	0	0
Acquired Loan | Commercial loans portfolio segment | Real estate
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	3,569,964	3,723,966
Acquired Loan | Commercial loans portfolio segment | Real estate | Commercial real estate
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	431,785	487,461
Acquired Loan | Commercial loans portfolio segment | Real estate | Multi-family | Multi-family
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	3,138,179	3,236,505
Acquired Loan | Commercial loans portfolio segment | Real estate | ADC
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	0	0
Acquired Loan | Residential mortgage portfolio segment | Residential mortgage
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	1,977,690	2,083,755
Acquired Loan | Consumer portfolio segment | Consumer
Components of loan portfolio, excluding loans held for sale
Total portfolio loans	$ 140,359	$ 151,812

Portfolio Loans - Narrative (De

Portfolio Loans - Narrative (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2019USD ($)loan	Mar. 31, 2018USD ($)loan	Dec. 31, 2018USD ($)
Financing Receivable, Allowance for Credit Losses [Line Items]
Net deferred loan origination costs	$ (9,453,000)		$ (5,581,000)
Discounts on acquired loans	115,290,000		117,222,000
Bank pledged mortgages	7,556,051,000		8,526,247,000
Non accrual loans	166,746,000		166,400,000
Maximum loan balance for credit risk to be evaluated on a homogeneous basis	750,000
Loans not individually evaluated for impairment	92,373,000		100,998,000
Impaired loans with an allowance recorded	0		0
Loans not classified as TDRs	$ 62,300,000		74,885,000
Loans modified by TDR | loan	3	7
TDRs modified and subsequently defaulted | loan	0	0
PCI Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	$ 48,959,000		53,320,000
Balance of PCI loans treated under cost recovery method	3,172,000		5,363,000
ADC
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans			0
Warehouse lending
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	0		0
Impaired loans cash-basis interest income recognized	0	$ 0
Public sector finance
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	0		0
Impaired loans with an allowance recorded	0		0
Impaired loans cash-basis interest income recognized	0	0
Payroll finance
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans with an allowance recorded	0		0
Impaired loans cash-basis interest income recognized	0	0
Factored receivables
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans with an allowance recorded	0		0
Impaired loans cash-basis interest income recognized	0	$ 0
Residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans formally in process of foreclosure	45,696,000		48,107,000
Commercial loans portfolio segment | Commercial and industrial | Asset-based lending
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	2,337,000		3,281,000
Loans not individually evaluated for impairment	2,307,000		3,281,000
Loans not classified as TDRs	$ 1,294,000		1,276,000
Loans modified by TDR | loan	0	0
Commercial loans portfolio segment | Commercial and industrial | Asset-based lending | PCI Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	$ 0		0
Commercial loans portfolio segment | Commercial and industrial | Warehouse lending
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans not individually evaluated for impairment	0		0
Impaired loans with an allowance recorded	0		0
Loans not classified as TDRs	$ 0		0
Loans modified by TDR | loan	0	0
Commercial loans portfolio segment | Commercial and industrial | Public sector finance
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans not individually evaluated for impairment	$ 0		0
Loans not classified as TDRs	$ 0		0
Loans modified by TDR | loan	0	0
Commercial loans portfolio segment | Commercial and industrial | Payroll finance
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	$ 695,000		881,000
Loans not individually evaluated for impairment	0		0
Loans not classified as TDRs	$ 0		0
Loans modified by TDR | loan	0	0
Commercial loans portfolio segment | Commercial and industrial | Payroll finance | PCI Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	$ 0		0
Commercial loans portfolio segment | Commercial and industrial | Factored receivables
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	0		0
Loans not individually evaluated for impairment	0		0
Loans not classified as TDRs	$ 0		0
Loans modified by TDR | loan	0	0
Commercial loans portfolio segment | Real estate | ADC
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	$ 434,000		0
Loans not individually evaluated for impairment	789,000		0
Loans not classified as TDRs	434,000		434,000
Commercial loans portfolio segment | Real estate | ADC | PCI Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	434,000		0
Multi-family | Commercial loans portfolio segment | Real estate | Multi-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	5,786,000		2,681,000
Loans not individually evaluated for impairment	4,373,000		1,662,000
Loans not classified as TDRs	$ 0		0
Loans modified by TDR | loan	0	0
Multi-family | Commercial loans portfolio segment | Real estate | Multi-family | PCI Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	$ 2,212,000		2,199,000
Originated Loan
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired transferred to originated	1,237,567,000		1,365,682,000
Loans acquired transferred to originated, allowance	9,448,000	$ 9,607,000
Non accrual loans	125,897,000		121,232,000
Loans not classified as TDRs	62,300,000		74,885,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Asset-based lending
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	2,337,000		3,281,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Warehouse lending
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	0		0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Public sector finance
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	0		0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Payroll finance
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	695,000		881,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Factored receivables
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	0		0
Originated Loan | Commercial loans portfolio segment | Real estate | ADC
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	434,000		0
Originated Loan | Multi-family | Commercial loans portfolio segment | Real estate | Multi-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Non accrual loans	$ 4,455,000		$ 1,691,000

Portfolio Loans - Status of Loa

Portfolio Loans - Status of Loans and TDRs (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Non-Performing loans:
Non accrual loans	$ 166,746,000	$ 166,400,000
Total portfolio loans	19,908,473,000	19,218,530,000
Current loans	29,320,000	34,892,000
Past due TDRs	62,300,000	74,885,000
Non-Accrual TDRs	32,709,000	38,947,000
30-59 days past due
Non-Performing loans:
Past due TDRs	0	215,000
60-89 days past due
Non-Performing loans:
Past due TDRs	57,000	181,000
90 days past due
Non-Performing loans:
Past due TDRs	214,000	650,000
Warehouse lending
Non-Performing loans:
Non accrual loans	0	0
Public sector finance
Non-Performing loans:
Non accrual loans	0	0
ADC
Non-Performing loans:
Non accrual loans		0
Commercial loans portfolio segment
Non-Performing loans:
Total portfolio loans	17,072,075,000	16,207,681,000
Commercial loans portfolio segment | Commercial and industrial
Non-Performing loans:
Total portfolio loans	7,265,187,000	6,533,386,000
Commercial loans portfolio segment | Commercial and industrial | Traditional C&I
Non-Performing loans:
Non accrual loans	36,767,000	42,298,000
Total portfolio loans	2,457,211,000	2,396,182,000
Current loans	5,935,000	9,011,000
Past due TDRs	25,640,000	34,683,000
Non-Accrual TDRs	19,705,000	25,672,000
Commercial loans portfolio segment | Commercial and industrial | Traditional C&I | 30-59 days past due
Non-Performing loans:
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | Traditional C&I | 60-89 days past due
Non-Performing loans:
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | Traditional C&I | 90 days past due
Non-Performing loans:
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | Asset-based lending
Non-Performing loans:
Non accrual loans	2,337,000	3,281,000
Total portfolio loans	1,085,572,000	792,935,000
Current loans	0	0
Past due TDRs	1,294,000	1,276,000
Non-Accrual TDRs	1,294,000	1,276,000
Commercial loans portfolio segment | Commercial and industrial | Asset-based lending | 30-59 days past due
Non-Performing loans:
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | Asset-based lending | 60-89 days past due
Non-Performing loans:
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | Asset-based lending | 90 days past due
Non-Performing loans:
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | Payroll finance
Non-Performing loans:
Non accrual loans	695,000	881,000
Total portfolio loans	204,610,000	227,452,000
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | Warehouse lending
Non-Performing loans:
Total portfolio loans	1,022,811,000	782,646,000
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | Factored receivables
Non-Performing loans:
Non accrual loans	0	0
Total portfolio loans	263,033,000	258,383,000
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | Equipment financing
Non-Performing loans:
Non accrual loans	15,115,000	12,221,000
Total portfolio loans	1,335,717,000	1,215,042,000
Current loans	1,688,000	1,905,000
Past due TDRs	3,976,000	4,281,000
Non-Accrual TDRs	2,288,000	2,367,000
Commercial loans portfolio segment | Commercial and industrial | Equipment financing | 30-59 days past due
Non-Performing loans:
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | Equipment financing | 60-89 days past due
Non-Performing loans:
Past due TDRs	0	9,000
Commercial loans portfolio segment | Commercial and industrial | Equipment financing | 90 days past due
Non-Performing loans:
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | Public sector finance
Non-Performing loans:
Total portfolio loans	896,233,000	860,746,000
Past due TDRs	0	0
Commercial loans portfolio segment | Real estate
Non-Performing loans:
Total portfolio loans	9,806,888,000	9,674,295,000
Commercial loans portfolio segment | Real estate | Commercial real estate
Non-Performing loans:
Non accrual loans	30,133,000	33,012,000
Total portfolio loans	4,822,921,000	4,642,417,000
Current loans	8,859,000	11,071,000
Past due TDRs	15,375,000	18,183,000
Non-Accrual TDRs	6,516,000	7,112,000
Commercial loans portfolio segment | Real estate | Commercial real estate | 30-59 days past due
Non-Performing loans:
Past due TDRs	0	0
Commercial loans portfolio segment | Real estate | Commercial real estate | 60-89 days past due
Non-Performing loans:
Past due TDRs	0	0
Commercial loans portfolio segment | Real estate | Commercial real estate | 90 days past due
Non-Performing loans:
Past due TDRs	0	0
Commercial loans portfolio segment | Real estate | Multi-family | Multi-family
Non-Performing loans:
Non accrual loans	5,786,000	2,681,000
Total portfolio loans	4,693,092,000	4,764,124,000
Past due TDRs	0	0
Commercial loans portfolio segment | Real estate | ADC
Non-Performing loans:
Non accrual loans	434,000	0
Total portfolio loans	290,875,000	267,754,000
Current loans	0	0
Past due TDRs	434,000	434,000
Non-Accrual TDRs	434,000	0
Commercial loans portfolio segment | Real estate | ADC | 30-59 days past due
Non-Performing loans:
Past due TDRs	0	0
Commercial loans portfolio segment | Real estate | ADC | 60-89 days past due
Non-Performing loans:
Past due TDRs	0	0
Commercial loans portfolio segment | Real estate | ADC | 90 days past due
Non-Performing loans:
Past due TDRs	0	434,000
Residential mortgage portfolio segment | Residential mortgage
Non-Performing loans:
Non accrual loans	63,470,000	61,981,000
Total portfolio loans	2,549,284,000	2,705,226,000
Current loans	6,818,000	5,688,000
Past due TDRs	9,013,000	8,103,000
Non-Accrual TDRs	2,195,000	2,312,000
Residential mortgage portfolio segment | Residential mortgage | 30-59 days past due
Non-Performing loans:
Past due TDRs	0	0
Residential mortgage portfolio segment | Residential mortgage | 60-89 days past due
Non-Performing loans:
Past due TDRs	0	103,000
Residential mortgage portfolio segment | Residential mortgage | 90 days past due
Non-Performing loans:
Past due TDRs	0	0
Consumer portfolio segment | Consumer
Non-Performing loans:
Non accrual loans	12,009,000	10,045,000
Total portfolio loans	287,114,000	305,623,000
Current loans	6,020,000	7,217,000
Past due TDRs	6,568,000	7,925,000
Non-Accrual TDRs	277,000	208,000
Consumer portfolio segment | Consumer | 30-59 days past due
Non-Performing loans:
Past due TDRs	0	215,000
Consumer portfolio segment | Consumer | 60-89 days past due
Non-Performing loans:
Past due TDRs	57,000	69,000
Consumer portfolio segment | Consumer | 90 days past due
Non-Performing loans:
Past due TDRs	214,000	216,000
Originated Loan
Non-Performing loans:
Current loans	13,293,891,000	12,710,626,000
Non accrual loans	125,897,000	121,232,000
Total portfolio loans	13,453,425,000	12,882,655,000
Current loans	29,320,000	34,892,000
Past due TDRs	62,300,000	74,885,000
Non-Accrual TDRs	32,709,000	38,947,000
Originated Loan | Nonperforming loans
Non-Performing loans:
Non accrual loans	125,897,000	121,232,000
Non-performing loans:
Loans 90 days past due and still accruing	3,217,000	1,777,000
Total non-performing loans	129,114,000	123,009,000
Originated Loan | 30-59 days past due
Non-Performing loans:
Past due loans	17,132,000	39,165,000
Past due TDRs	0	215,000
Originated Loan | 60-89 days past due
Non-Performing loans:
Past due loans	13,288,000	9,855,000
Past due TDRs	57,000	181,000
Originated Loan | 90 days past due
Non-Performing loans:
Past due loans	3,217,000	1,777,000
Past due TDRs	214,000	650,000
Originated Loan | Commercial loans portfolio segment
Non-Performing loans:
Total portfolio loans	12,735,076,000	12,107,373,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial
Non-Performing loans:
Total portfolio loans	6,498,152,000	6,157,044,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Traditional C&I
Non-Performing loans:
Current loans	2,344,556,000	2,266,947,000
Non accrual loans	36,767,000	42,298,000
Total portfolio loans	2,386,984,000	2,321,131,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Traditional C&I | 30-59 days past due
Non-Performing loans:
Past due loans	3,541,000	5,747,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Traditional C&I | 60-89 days past due
Non-Performing loans:
Past due loans	36,000	6,139,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Traditional C&I | 90 days past due
Non-Performing loans:
Past due loans	2,084,000	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Asset-based lending
Non-Performing loans:
Current loans	791,261,000	789,654,000
Non accrual loans	2,337,000	3,281,000
Total portfolio loans	793,598,000	792,935,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Asset-based lending | 30-59 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Asset-based lending | 60-89 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Asset-based lending | 90 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Payroll finance
Non-Performing loans:
Current loans	203,915,000	226,571,000
Non accrual loans	695,000	881,000
Total portfolio loans	204,610,000	227,452,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Payroll finance | 30-59 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Payroll finance | 60-89 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Payroll finance | 90 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Warehouse lending
Non-Performing loans:
Current loans	1,022,811,000	782,646,000
Non accrual loans	0	0
Total portfolio loans	1,022,811,000	782,646,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Warehouse lending | 30-59 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Warehouse lending | 60-89 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Warehouse lending | 90 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Factored receivables
Non-Performing loans:
Current loans	263,033,000	258,383,000
Non accrual loans	0	0
Total portfolio loans	263,033,000	258,383,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Factored receivables | 30-59 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Factored receivables | 60-89 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Factored receivables | 90 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Equipment financing
Non-Performing loans:
Current loans	901,695,000	879,468,000
Non accrual loans	15,115,000	12,221,000
Total portfolio loans	930,883,000	913,751,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Equipment financing | 30-59 days past due
Non-Performing loans:
Past due loans	8,772,000	20,466,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Equipment financing | 60-89 days past due
Non-Performing loans:
Past due loans	5,172,000	1,587,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Equipment financing | 90 days past due
Non-Performing loans:
Past due loans	129,000	9,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Public sector finance
Non-Performing loans:
Current loans	896,233,000	860,746,000
Non accrual loans	0	0
Total portfolio loans	896,233,000	860,746,000
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Public sector finance | 30-59 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Public sector finance | 60-89 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Commercial and industrial | Public sector finance | 90 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Real estate
Non-Performing loans:
Total portfolio loans	6,236,924,000	5,950,329,000
Originated Loan | Commercial loans portfolio segment | Real estate | Commercial real estate
Non-Performing loans:
Current loans	4,356,172,000	4,118,134,000
Non accrual loans	26,468,000	27,969,000
Total portfolio loans	4,391,136,000	4,154,956,000
Originated Loan | Commercial loans portfolio segment | Real estate | Commercial real estate | 30-59 days past due
Non-Performing loans:
Past due loans	3,711,000	8,054,000
Originated Loan | Commercial loans portfolio segment | Real estate | Commercial real estate | 60-89 days past due
Non-Performing loans:
Past due loans	4,785,000	0
Originated Loan | Commercial loans portfolio segment | Real estate | Commercial real estate | 90 days past due
Non-Performing loans:
Past due loans	0	799,000
Originated Loan | Commercial loans portfolio segment | Real estate | Multi-family | Multi-family
Non-Performing loans:
Current loans	1,550,317,000	1,524,914,000
Non accrual loans	4,455,000	1,691,000
Total portfolio loans	1,554,913,000	1,527,619,000
Originated Loan | Commercial loans portfolio segment | Real estate | Multi-family | Multi-family | 30-59 days past due
Non-Performing loans:
Past due loans	141,000	1,014,000
Originated Loan | Commercial loans portfolio segment | Real estate | Multi-family | Multi-family | 60-89 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Real estate | Multi-family | Multi-family | 90 days past due
Non-Performing loans:
Past due loans	0	0
Originated Loan | Commercial loans portfolio segment | Real estate | ADC
Non-Performing loans:
Current loans	287,088,000	267,090,000
Non accrual loans	434,000	0
Total portfolio loans	290,875,000	267,754,000
Originated Loan | Commercial loans portfolio segment | Real estate | ADC | 30-59 days past due
Non-Performing loans:
Past due loans	0	230,000
Originated Loan | Commercial loans portfolio segment | Real estate | ADC | 60-89 days past due
Non-Performing loans:
Past due loans	2,563,000	0
Originated Loan | Commercial loans portfolio segment | Real estate | ADC | 90 days past due
Non-Performing loans:
Past due loans	790,000	434,000
Originated Loan | Residential mortgage portfolio segment | Residential mortgage
Non-Performing loans:
Current loans	540,028,000	592,563,000
Non accrual loans	30,778,000	25,813,000
Total portfolio loans	571,594,000	621,471,000
Originated Loan | Residential mortgage portfolio segment | Residential mortgage | 30-59 days past due
Non-Performing loans:
Past due loans	466,000	1,934,000
Originated Loan | Residential mortgage portfolio segment | Residential mortgage | 60-89 days past due
Non-Performing loans:
Past due loans	322,000	897,000
Originated Loan | Residential mortgage portfolio segment | Residential mortgage | 90 days past due
Non-Performing loans:
Past due loans	0	264,000
Originated Loan | Consumer portfolio segment | Consumer
Non-Performing loans:
Current loans	136,782,000	143,510,000
Non accrual loans	8,848,000	7,078,000
Total portfolio loans	146,755,000	153,811,000
Originated Loan | Consumer portfolio segment | Consumer | 30-59 days past due
Non-Performing loans:
Past due loans	501,000	1,720,000
Originated Loan | Consumer portfolio segment | Consumer | 60-89 days past due
Non-Performing loans:
Past due loans	410,000	1,232,000
Originated Loan | Consumer portfolio segment | Consumer | 90 days past due
Non-Performing loans:
Past due loans	214,000	271,000
Acquired Loan
Non-Performing loans:
Current loans	6,379,907,000	6,241,881,000
Non accrual loans	40,849,000	45,168,000
Total portfolio loans	6,455,048,000	6,335,875,000
Current loans	0	0
Past due TDRs	0	0
Non-Accrual TDRs	0	0
Acquired Loan | Nonperforming loans
Non-Performing loans:
Non accrual loans	40,849,000	45,168,000
Non-performing loans:
Loans 90 days past due and still accruing	452,000	645,000
Total non-performing loans	41,301,000	45,813,000
Acquired Loan | 30-59 days past due
Non-Performing loans:
Past due loans	21,676,000	36,614,000
Past due TDRs	0	0
Acquired Loan | 60-89 days past due
Non-Performing loans:
Past due loans	12,164,000	11,567,000
Past due TDRs	0	0
Acquired Loan | 90 days past due
Non-Performing loans:
Past due loans	452,000	645,000
Past due TDRs	0	0
Acquired Loan | Commercial loans portfolio segment
Non-Performing loans:
Total portfolio loans	4,336,999,000	4,100,308,000
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial
Non-Performing loans:
Total portfolio loans	767,035,000	376,342,000
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Traditional C&I
Non-Performing loans:
Current loans	69,384,000	69,690,000
Non accrual loans	0	0
Total portfolio loans	70,227,000	75,051,000
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Traditional C&I | 30-59 days past due
Non-Performing loans:
Past due loans	243,000	5,256,000
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Traditional C&I | 60-89 days past due
Non-Performing loans:
Past due loans	600,000	105,000
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Traditional C&I | 90 days past due
Non-Performing loans:
Past due loans	0	0
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Asset-based lending
Non-Performing loans:
Current loans	291,974,000
Non accrual loans	0
Total portfolio loans	291,974,000	0
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Asset-based lending | 30-59 days past due
Non-Performing loans:
Past due loans	0
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Asset-based lending | 60-89 days past due
Non-Performing loans:
Past due loans	0
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Asset-based lending | 90 days past due
Non-Performing loans:
Past due loans	0
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Payroll finance
Non-Performing loans:
Total portfolio loans	0	0
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Warehouse lending
Non-Performing loans:
Total portfolio loans	0	0
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Factored receivables
Non-Performing loans:
Total portfolio loans	0	0
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Equipment financing
Non-Performing loans:
Current loans	399,407,000	288,447,000
Non accrual loans	0	0
Total portfolio loans	404,834,000	301,291,000
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Equipment financing | 30-59 days past due
Non-Performing loans:
Past due loans	5,427,000	8,659,000
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Equipment financing | 60-89 days past due
Non-Performing loans:
Past due loans	0	3,998,000
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Equipment financing | 90 days past due
Non-Performing loans:
Past due loans	0	187,000
Acquired Loan | Commercial loans portfolio segment | Commercial and industrial | Public sector finance
Non-Performing loans:
Total portfolio loans	0	0
Acquired Loan | Commercial loans portfolio segment | Real estate
Non-Performing loans:
Total portfolio loans	3,569,964,000	3,723,966,000
Acquired Loan | Commercial loans portfolio segment | Real estate | Commercial real estate
Non-Performing loans:
Current loans	417,344,000	481,583,000
Non accrual loans	3,665,000	5,043,000
Total portfolio loans	431,785,000	487,461,000
Acquired Loan | Commercial loans portfolio segment | Real estate | Commercial real estate | 30-59 days past due
Non-Performing loans:
Past due loans	4,602,000	377,000
Acquired Loan | Commercial loans portfolio segment | Real estate | Commercial real estate | 60-89 days past due
Non-Performing loans:
Past due loans	6,174,000	0
Acquired Loan | Commercial loans portfolio segment | Real estate | Commercial real estate | 90 days past due
Non-Performing loans:
Past due loans	0	458,000
Acquired Loan | Commercial loans portfolio segment | Real estate | Multi-family | Multi-family
Non-Performing loans:
Current loans	3,135,508,000	3,233,779,000
Non accrual loans	1,331,000	990,000
Total portfolio loans	3,138,179,000	3,236,505,000
Acquired Loan | Commercial loans portfolio segment | Real estate | Multi-family | Multi-family | 30-59 days past due
Non-Performing loans:
Past due loans	1,340,000	1,736,000
Acquired Loan | Commercial loans portfolio segment | Real estate | Multi-family | Multi-family | 60-89 days past due
Non-Performing loans:
Past due loans	0	0
Acquired Loan | Commercial loans portfolio segment | Real estate | Multi-family | Multi-family | 90 days past due
Non-Performing loans:
Past due loans	0	0
Acquired Loan | Commercial loans portfolio segment | Real estate | ADC
Non-Performing loans:
Total portfolio loans	0	0
Acquired Loan | Residential mortgage portfolio segment | Residential mortgage
Non-Performing loans:
Current loans	1,930,942,000	2,022,340,000
Non accrual loans	32,692,000	36,168,000
Total portfolio loans	1,977,690,000	2,083,755,000
Acquired Loan | Residential mortgage portfolio segment | Residential mortgage | 30-59 days past due
Non-Performing loans:
Past due loans	9,050,000	18,734,000
Acquired Loan | Residential mortgage portfolio segment | Residential mortgage | 60-89 days past due
Non-Performing loans:
Past due loans	4,681,000	6,513,000
Acquired Loan | Residential mortgage portfolio segment | Residential mortgage | 90 days past due
Non-Performing loans:
Past due loans	325,000	0
Acquired Loan | Consumer portfolio segment | Consumer
Non-Performing loans:
Current loans	135,348,000	146,042,000
Non accrual loans	3,161,000	2,967,000
Total portfolio loans	140,359,000	151,812,000
Acquired Loan | Consumer portfolio segment | Consumer | 30-59 days past due
Non-Performing loans:
Past due loans	1,014,000	1,852,000
Acquired Loan | Consumer portfolio segment | Consumer | 60-89 days past due
Non-Performing loans:
Past due loans	709,000	951,000
Acquired Loan | Consumer portfolio segment | Consumer | 90 days past due
Non-Performing loans:
Past due loans	$ 127,000	$ 0

Portfolio Loans - Nonaccrual Lo

Portfolio Loans - Nonaccrual Loans (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	$ 166,746,000	$ 166,400,000
Non-accrual loans, unpaid principal balance	203,530,000	198,371,000
Warehouse lending
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	0	0
ADC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans		0
Commercial loans portfolio segment | Traditional C&I | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	36,767,000	42,298,000
Non-accrual loans, unpaid principal balance	49,637,000	50,651,000
Commercial loans portfolio segment | Asset-based lending | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	2,337,000	3,281,000
Non-accrual loans, unpaid principal balance	2,822,000	3,859,000
Commercial loans portfolio segment | Payroll finance | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	695,000	881,000
Non-accrual loans, unpaid principal balance	695,000	881,000
Commercial loans portfolio segment | Equipment financing | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	15,115,000	12,221,000
Non-accrual loans, unpaid principal balance	20,064,000	15,744,000
Commercial loans portfolio segment | Commercial real estate | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	30,133,000	33,012,000
Non-accrual loans, unpaid principal balance	36,539,000	39,440,000
Commercial loans portfolio segment | Multi-family | Multi-family | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	5,786,000	2,681,000
Non-accrual loans, unpaid principal balance	6,033,000	2,920,000
Commercial loans portfolio segment | ADC | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	434,000	0
Non-accrual loans, unpaid principal balance	434,000	0
Residential mortgage portfolio segment | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	63,470,000	61,981,000
Non-accrual loans, unpaid principal balance	73,192,000	72,706,000
Consumer portfolio segment | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	12,009,000	10,045,000
Non-accrual loans, unpaid principal balance	14,114,000	12,170,000
Receivables without deteriorated credit quality
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	117,787,000	113,080,000
Receivables without deteriorated credit quality | Commercial loans portfolio segment | Traditional C&I | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	36,094,000	41,625,000
Receivables without deteriorated credit quality | Commercial loans portfolio segment | Asset-based lending | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	2,337,000	3,281,000
Receivables without deteriorated credit quality | Commercial loans portfolio segment | Payroll finance | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	695,000	881,000
Receivables without deteriorated credit quality | Commercial loans portfolio segment | Equipment financing | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	15,115,000	12,221,000
Receivables without deteriorated credit quality | Commercial loans portfolio segment | Commercial real estate | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	22,305,000	23,675,000
Receivables without deteriorated credit quality | Commercial loans portfolio segment | Multi-family | Multi-family | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	3,574,000	482,000
Receivables without deteriorated credit quality | Commercial loans portfolio segment | ADC | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	0	0
Receivables without deteriorated credit quality | Residential mortgage portfolio segment | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	29,636,000	24,339,000
Receivables without deteriorated credit quality | Consumer portfolio segment | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	8,031,000	6,576,000
Receivables acquired with deteriorated credit quality
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	48,959,000	53,320,000
Receivables acquired with deteriorated credit quality | Commercial loans portfolio segment | Traditional C&I | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	673,000	673,000
Receivables acquired with deteriorated credit quality | Commercial loans portfolio segment | Asset-based lending | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	0	0
Receivables acquired with deteriorated credit quality | Commercial loans portfolio segment | Payroll finance | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	0	0
Receivables acquired with deteriorated credit quality | Commercial loans portfolio segment | Equipment financing | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	0	0
Receivables acquired with deteriorated credit quality | Commercial loans portfolio segment | Commercial real estate | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	7,828,000	9,337,000
Receivables acquired with deteriorated credit quality | Commercial loans portfolio segment | Multi-family | Multi-family | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	2,212,000	2,199,000
Receivables acquired with deteriorated credit quality | Commercial loans portfolio segment | ADC | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	434,000	0
Receivables acquired with deteriorated credit quality | Residential mortgage portfolio segment | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	33,834,000	37,642,000
Receivables acquired with deteriorated credit quality | Consumer portfolio segment | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment non-accrual loans	$ 3,978,000	$ 3,469,000

Portfolio Loans - Loans Evaluat

Portfolio Loans - Loans Evaluated for Impairment (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Loans evaluated for impairment by segment
Loans evaluated by segment, Individually evaluated for impairment	$ 92,373,000	$ 100,998,000
Loans evaluated by segment, Collectively evaluated for impairment	19,674,811,000	18,977,737,000
Total portfolio loans	19,908,473,000	19,218,530,000
Allowance evaluated by segment, Individually evaluated for impairment	0	0
Allowance evaluated by segment, Collectively evaluated for impairment	98,960,000	95,677,000
Total allowance for loan losses	98,960,000	95,677,000
PCI Loans
Loans evaluated for impairment by segment
Loans evaluated by segment, Purchased credit impaired loans	141,289,000	139,795,000
Commercial loans portfolio segment
Loans evaluated for impairment by segment
Total portfolio loans	17,072,075,000	16,207,681,000
Commercial loans portfolio segment | Commercial and industrial
Loans evaluated for impairment by segment
Total portfolio loans	7,265,187,000	6,533,386,000
Commercial loans portfolio segment | Commercial and industrial | Traditional C&I
Loans evaluated for impairment by segment
Loans evaluated by segment, Individually evaluated for impairment	40,807,000	48,735,000
Loans evaluated by segment, Collectively evaluated for impairment	2,409,365,000	2,338,432,000
Total portfolio loans	2,457,211,000	2,396,182,000
Allowance evaluated by segment, Individually evaluated for impairment	0	0
Allowance evaluated by segment, Collectively evaluated for impairment	17,936,000	14,201,000
Total allowance for loan losses	17,936,000	14,201,000
Commercial loans portfolio segment | Commercial and industrial | Traditional C&I | PCI Loans
Loans evaluated for impairment by segment
Loans evaluated by segment, Purchased credit impaired loans	7,039,000	9,015,000
Commercial loans portfolio segment | Commercial and industrial | Asset-based lending
Loans evaluated for impairment by segment
Loans evaluated by segment, Individually evaluated for impairment	2,307,000	3,281,000
Loans evaluated by segment, Collectively evaluated for impairment	1,077,672,000	789,654,000
Total portfolio loans	1,085,572,000	792,935,000
Allowance evaluated by segment, Individually evaluated for impairment	0	0
Allowance evaluated by segment, Collectively evaluated for impairment	8,573,000	7,979,000
Total allowance for loan losses	8,573,000	7,979,000
Commercial loans portfolio segment | Commercial and industrial | Asset-based lending | PCI Loans
Loans evaluated for impairment by segment
Loans evaluated by segment, Purchased credit impaired loans	5,593,000	0
Commercial loans portfolio segment | Commercial and industrial | Payroll finance
Loans evaluated for impairment by segment
Loans evaluated by segment, Individually evaluated for impairment	0	0
Loans evaluated by segment, Collectively evaluated for impairment	204,610,000	227,452,000
Total portfolio loans	204,610,000	227,452,000
Allowance evaluated by segment, Individually evaluated for impairment	0	0
Allowance evaluated by segment, Collectively evaluated for impairment	2,100,000	2,738,000
Total allowance for loan losses	2,100,000	2,738,000
Commercial loans portfolio segment | Commercial and industrial | Payroll finance | PCI Loans
Loans evaluated for impairment by segment
Loans evaluated by segment, Purchased credit impaired loans	0	0
Commercial loans portfolio segment | Commercial and industrial | Warehouse lending
Loans evaluated for impairment by segment
Loans evaluated by segment, Individually evaluated for impairment	0	0
Loans evaluated by segment, Collectively evaluated for impairment	1,022,811,000	782,646,000
Total portfolio loans	1,022,811,000	782,646,000
Allowance evaluated by segment, Individually evaluated for impairment	0	0
Allowance evaluated by segment, Collectively evaluated for impairment	693,000	2,800,000
Total allowance for loan losses	693,000	2,800,000
Commercial loans portfolio segment | Commercial and industrial | Warehouse lending | PCI Loans
Loans evaluated for impairment by segment
Loans evaluated by segment, Purchased credit impaired loans	0	0
Commercial loans portfolio segment | Commercial and industrial | Factored receivables
Loans evaluated for impairment by segment
Loans evaluated by segment, Individually evaluated for impairment	0	0
Loans evaluated by segment, Collectively evaluated for impairment	263,033,000	258,383,000
Total portfolio loans	263,033,000	258,383,000
Allowance evaluated by segment, Individually evaluated for impairment	0	0
Allowance evaluated by segment, Collectively evaluated for impairment	1,092,000	1,064,000
Total allowance for loan losses	1,092,000	1,064,000
Commercial loans portfolio segment | Commercial and industrial | Factored receivables | PCI Loans
Loans evaluated for impairment by segment
Loans evaluated by segment, Purchased credit impaired loans	0	0
Commercial loans portfolio segment | Commercial and industrial | Equipment financing
Loans evaluated for impairment by segment
Loans evaluated by segment, Individually evaluated for impairment	3,722,000	3,577,000
Loans evaluated by segment, Collectively evaluated for impairment	1,324,338,000	1,211,465,000
Total portfolio loans	1,335,717,000	1,215,042,000
Allowance evaluated by segment, Individually evaluated for impairment	0	0
Allowance evaluated by segment, Collectively evaluated for impairment	14,326,000	12,450,000
Total allowance for loan losses	14,326,000	12,450,000
Commercial loans portfolio segment | Commercial and industrial | Equipment financing | PCI Loans
Loans evaluated for impairment by segment
Loans evaluated by segment, Purchased credit impaired loans	7,657,000	0
Commercial loans portfolio segment | Commercial and industrial | Public sector finance
Loans evaluated for impairment by segment
Loans evaluated by segment, Individually evaluated for impairment	0	0
Loans evaluated by segment, Collectively evaluated for impairment	896,233,000	860,746,000
Total portfolio loans	896,233,000	860,746,000
Allowance evaluated by segment, Individually evaluated for impairment	0	0
Allowance evaluated by segment, Collectively evaluated for impairment	1,134,000	1,739,000
Total allowance for loan losses	1,134,000	1,739,000
Commercial loans portfolio segment | Commercial and industrial | Public sector finance | PCI Loans
Loans evaluated for impairment by segment
Loans evaluated by segment, Purchased credit impaired loans	0	0
Commercial loans portfolio segment | Real estate
Loans evaluated for impairment by segment
Total portfolio loans	9,806,888,000	9,674,295,000
Commercial loans portfolio segment | Real estate | Commercial real estate
Loans evaluated for impairment by segment
Loans evaluated by segment, Individually evaluated for impairment	29,346,000	33,284,000
Loans evaluated by segment, Collectively evaluated for impairment	4,770,876,000	4,581,911,000
Total portfolio loans	4,822,921,000	4,642,417,000
Allowance evaluated by segment, Individually evaluated for impairment	0	0
Allowance evaluated by segment, Collectively evaluated for impairment	33,087,000	32,285,000
Total allowance for loan losses	33,087,000	32,285,000
Commercial loans portfolio segment | Real estate | Commercial real estate | PCI Loans
Loans evaluated for impairment by segment
Loans evaluated by segment, Purchased credit impaired loans	22,699,000	27,222,000
Commercial loans portfolio segment | Real estate | Multi-family | Multi-family
Loans evaluated for impairment by segment
Loans evaluated by segment, Individually evaluated for impairment	4,373,000	1,662,000
Loans evaluated by segment, Collectively evaluated for impairment	4,682,367,000	4,754,912,000
Total portfolio loans	4,693,092,000	4,764,124,000
Allowance evaluated by segment, Individually evaluated for impairment	0	0
Allowance evaluated by segment, Collectively evaluated for impairment	8,659,000	8,355,000
Total allowance for loan losses	8,659,000	8,355,000
Commercial loans portfolio segment | Real estate | Multi-family | Multi-family | PCI Loans
Loans evaluated for impairment by segment
Loans evaluated by segment, Purchased credit impaired loans	6,352,000	7,550,000
Commercial loans portfolio segment | Real estate | ADC
Loans evaluated for impairment by segment
Loans evaluated by segment, Individually evaluated for impairment	789,000	0
Loans evaluated by segment, Collectively evaluated for impairment	290,086,000	267,754,000
Total portfolio loans	290,875,000	267,754,000
Allowance evaluated by segment, Individually evaluated for impairment	0	0
Allowance evaluated by segment, Collectively evaluated for impairment	1,912,000	1,769,000
Total allowance for loan losses	1,912,000	1,769,000
Commercial loans portfolio segment | Real estate | ADC | PCI Loans
Loans evaluated for impairment by segment
Loans evaluated by segment, Purchased credit impaired loans	0	0
Residential mortgage portfolio segment | Residential mortgage
Loans evaluated for impairment by segment
Loans evaluated by segment, Individually evaluated for impairment	4,629,000	3,210,000
Loans evaluated by segment, Collectively evaluated for impairment	2,460,592,000	2,614,046,000
Total portfolio loans	2,549,284,000	2,705,226,000
Allowance evaluated by segment, Individually evaluated for impairment	0	0
Allowance evaluated by segment, Collectively evaluated for impairment	6,925,000	7,454,000
Total allowance for loan losses	6,925,000	7,454,000
Residential mortgage portfolio segment | Residential mortgage | PCI Loans
Loans evaluated for impairment by segment
Loans evaluated by segment, Purchased credit impaired loans	84,063,000	87,970,000
Consumer portfolio segment | Consumer
Loans evaluated for impairment by segment
Loans evaluated by segment, Individually evaluated for impairment	6,400,000	7,249,000
Loans evaluated by segment, Collectively evaluated for impairment	272,828,000	290,336,000
Total portfolio loans	287,114,000	305,623,000
Allowance evaluated by segment, Individually evaluated for impairment	0	0
Allowance evaluated by segment, Collectively evaluated for impairment	2,523,000	2,843,000
Total allowance for loan losses	2,523,000	2,843,000
Consumer portfolio segment | Consumer | PCI Loans
Loans evaluated for impairment by segment
Loans evaluated by segment, Purchased credit impaired loans	$ 7,886,000	$ 8,038,000

Portfolio Loans - Accretable Yi

Portfolio Loans - Accretable Yield Discount for PCI Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2017
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at beginning of period	$ 16,932	$ 45,582
Accretion of income	(2,111)	(3,029)
Charge-offs	(508)		$ (342)
Reclassification (to) from non-accretable difference	1,534		410
Other, adjustments	0	(15,072)
Balance at end of period	$ 15,847	$ 27,549	$ 45,582

Portfolio Loans - Loans Individ

Portfolio Loans - Loans Individually Evaluated for Impairment (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	$ 108,056	$ 128,228
Recorded investment with no related allowance recorded	92,373	100,998
Residential mortgage portfolio segment
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded		3,430
Recorded investment with no related allowance recorded		3,210
Residential mortgage portfolio segment | Residential mortgage
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	4,784
Recorded investment with no related allowance recorded	4,629
Consumer portfolio segment
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded		7,249
Recorded investment with no related allowance recorded		7,249
Consumer portfolio segment | Consumer
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	6,400
Recorded investment with no related allowance recorded	6,400
Commercial and industrial | Commercial loans portfolio segment | Traditional C&I
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	50,565	64,653
Recorded investment with no related allowance recorded	40,807	48,735
Commercial and industrial | Commercial loans portfolio segment | Asset-based lending
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	2,792	3,859
Recorded investment with no related allowance recorded	2,307	3,281
Commercial and industrial | Commercial loans portfolio segment | Equipment financing
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	3,974	3,577
Recorded investment with no related allowance recorded	3,722	3,577
Real estate | Commercial loans portfolio segment | Commercial real estate
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	34,047	43,119
Recorded investment with no related allowance recorded	29,346	33,284
Real estate | Commercial loans portfolio segment | Multi-family | Multi-family
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	4,705	2,341
Recorded investment with no related allowance recorded	4,373	1,662
Real estate | Commercial loans portfolio segment | ADC
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	789	0
Recorded investment with no related allowance recorded	$ 789	$ 0

Portfolio Loans - Average Recor

Portfolio Loans - Average Recorded Investment and Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Financing Receivable, Impaired [Line Items]
Average recorded investment with no related allowance	$ 86,187	$ 65,394
Interest income recognized with no related allowance	250	203
Cash-basis interest income recognized with no related allowance	0	0
Commercial loans portfolio segment | Commercial and industrial | Traditional C&I
Financing Receivable, Impaired [Line Items]
Average recorded investment with no related allowance	41,835	39,928
Interest income recognized with no related allowance	49	140
Cash-basis interest income recognized with no related allowance	0	0
Commercial loans portfolio segment | Commercial and industrial | Asset-based lending
Financing Receivable, Impaired [Line Items]
Average recorded investment with no related allowance	1,864	0
Interest income recognized with no related allowance	0	0
Cash-basis interest income recognized with no related allowance	0	0
Commercial loans portfolio segment | Commercial and industrial | Equipment financing
Financing Receivable, Impaired [Line Items]
Average recorded investment with no related allowance	2,590	1,411
Interest income recognized with no related allowance	0	0
Cash-basis interest income recognized with no related allowance	0	0
Commercial loans portfolio segment | Real estate | Commercial real estate
Financing Receivable, Impaired [Line Items]
Average recorded investment with no related allowance	28,586	12,190
Interest income recognized with no related allowance	172	44
Cash-basis interest income recognized with no related allowance	0	0
Commercial loans portfolio segment | Real estate | Multi-family | Multi-family
Financing Receivable, Impaired [Line Items]
Average recorded investment with no related allowance	3,224	2,001
Interest income recognized with no related allowance	16	16
Cash-basis interest income recognized with no related allowance	0	0
Commercial loans portfolio segment | Real estate | ADC
Financing Receivable, Impaired [Line Items]
Average recorded investment with no related allowance	395	4,138
Interest income recognized with no related allowance	13	3
Cash-basis interest income recognized with no related allowance	0	0
Residential mortgage portfolio segment | Residential mortgage
Financing Receivable, Impaired [Line Items]
Average recorded investment with no related allowance	2,502	2,599
Interest income recognized with no related allowance	0	0
Cash-basis interest income recognized with no related allowance	0	0
Consumer portfolio segment | Consumer
Financing Receivable, Impaired [Line Items]
Average recorded investment with no related allowance	5,191	3,127
Interest income recognized with no related allowance	0	0
Cash-basis interest income recognized with no related allowance	$ 0	$ 0

Portfolio Loans - Past Due Stat

Portfolio Loans - Past Due Status (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Modifications [Line Items]
Current loans	$ 29,320	$ 34,892
Past due TDRs	62,300	74,885
Non- accrual	32,709	38,947
30-59 days past due
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	215
60-89 days past due
Financing Receivable, Modifications [Line Items]
Past due TDRs	57	181
90 days past due
Financing Receivable, Modifications [Line Items]
Past due TDRs	214	650
Commercial loans portfolio segment | Commercial and industrial | Traditional C&I
Financing Receivable, Modifications [Line Items]
Current loans	5,935	9,011
Past due TDRs	25,640	34,683
Non- accrual	19,705	25,672
Commercial loans portfolio segment | Commercial and industrial | Asset-based lending
Financing Receivable, Modifications [Line Items]
Current loans	0	0
Past due TDRs	1,294	1,276
Non- accrual	1,294	1,276
Commercial loans portfolio segment | Commercial and industrial | Equipment financing
Financing Receivable, Modifications [Line Items]
Current loans	1,688	1,905
Past due TDRs	3,976	4,281
Non- accrual	2,288	2,367
Commercial loans portfolio segment | Commercial and industrial | 30-59 days past due | Traditional C&I
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | 30-59 days past due | Asset-based lending
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | 30-59 days past due | Equipment financing
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | 60-89 days past due | Traditional C&I
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | 60-89 days past due | Asset-based lending
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | 60-89 days past due | Equipment financing
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	9
Commercial loans portfolio segment | Commercial and industrial | 90 days past due | Traditional C&I
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | 90 days past due | Asset-based lending
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Commercial loans portfolio segment | Commercial and industrial | 90 days past due | Equipment financing
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Commercial loans portfolio segment | Real estate | Commercial real estate
Financing Receivable, Modifications [Line Items]
Current loans	8,859	11,071
Past due TDRs	15,375	18,183
Non- accrual	6,516	7,112
Commercial loans portfolio segment | Real estate | ADC
Financing Receivable, Modifications [Line Items]
Current loans	0	0
Past due TDRs	434	434
Non- accrual	434	0
Commercial loans portfolio segment | Real estate | 30-59 days past due | Commercial real estate
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Commercial loans portfolio segment | Real estate | 30-59 days past due | ADC
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Commercial loans portfolio segment | Real estate | 60-89 days past due | Commercial real estate
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Commercial loans portfolio segment | Real estate | 60-89 days past due | ADC
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Commercial loans portfolio segment | Real estate | 90 days past due | Commercial real estate
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Commercial loans portfolio segment | Real estate | 90 days past due | ADC
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	434
Residential mortgage portfolio segment | Residential mortgage
Financing Receivable, Modifications [Line Items]
Current loans	6,818	5,688
Past due TDRs	9,013	8,103
Non- accrual	2,195	2,312
Residential mortgage portfolio segment | 30-59 days past due | Residential mortgage
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Residential mortgage portfolio segment | 60-89 days past due | Residential mortgage
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	103
Residential mortgage portfolio segment | 90 days past due | Residential mortgage
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	0
Consumer portfolio segment | Consumer
Financing Receivable, Modifications [Line Items]
Current loans	6,020	7,217
Past due TDRs	6,568	7,925
Non- accrual	277	208
Consumer portfolio segment | 30-59 days past due | Consumer
Financing Receivable, Modifications [Line Items]
Past due TDRs	0	215
Consumer portfolio segment | 60-89 days past due | Consumer
Financing Receivable, Modifications [Line Items]
Past due TDRs	57	69
Consumer portfolio segment | 90 days past due | Consumer
Financing Receivable, Modifications [Line Items]
Past due TDRs	$ 214	$ 216

Portfolio Loans - Loans Modifie

Portfolio Loans - Loans Modified as TDRs (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)loan	Mar. 31, 2018USD ($)loan
Financing Receivable, Modifications [Line Items]
Number	3	7
Recorded investment, Pre-modification | $	$ 5,921	$ 14,244
Recorded investment, Post-modification | $	$ 5,921	$ 14,039
Commercial loans portfolio segment | Commercial and industrial | Payroll finance
Financing Receivable, Modifications [Line Items]
Number	0	0
Commercial loans portfolio segment | Commercial and industrial | Traditional C&I
Financing Receivable, Modifications [Line Items]
Number	0	1
Recorded investment, Pre-modification | $	$ 0	$ 12,766
Recorded investment, Post-modification | $	$ 0	$ 12,766
Commercial loans portfolio segment | Commercial and industrial | Asset-based lending
Financing Receivable, Modifications [Line Items]
Number	0	0
Commercial loans portfolio segment | Commercial and industrial | Equipment financing
Financing Receivable, Modifications [Line Items]
Number	1	1
Recorded investment, Pre-modification | $	$ 5,026	$ 670
Recorded investment, Post-modification | $	$ 5,026	$ 670
Commercial loans portfolio segment | Commercial and industrial | Warehouse lending
Financing Receivable, Modifications [Line Items]
Number	0	0
Commercial loans portfolio segment | Commercial and industrial | Factored receivables
Financing Receivable, Modifications [Line Items]
Number	0	0
Commercial loans portfolio segment | Commercial and industrial | Public sector finance
Financing Receivable, Modifications [Line Items]
Number	0	0
Residential mortgage portfolio segment | Residential mortgage
Financing Receivable, Modifications [Line Items]
Number	2	5
Recorded investment, Pre-modification | $	$ 895	$ 808
Recorded investment, Post-modification | $	$ 895	$ 603
Multi-family | Commercial loans portfolio segment | Real estate | Multi-family
Financing Receivable, Modifications [Line Items]
Number	0	0

Allowance for Loan Losses - All

Allowance for Loan Losses - Allowance Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Summary of activity in allowance for loan losses and recorded investments in loans by portfolio segment based on impairment method
Beginning allowance for loan losses	$ 95,677	$ 77,907
Charge-offs	(7,665)	(9,291)
Recoveries	748	476
Net charge-offs	(6,917)	(8,815)
Provision / (credit)	10,200	13,000
Ending allowance for Loan Losses	$ 98,960	$ 82,092
Annualized net charge-offs to average loans outstanding:	0.14%	0.18%
Traditional C&I
Summary of activity in allowance for loan losses and recorded investments in loans by portfolio segment based on impairment method
Beginning allowance for loan losses	$ 14,201	$ 19,072
Charge-offs	(4,839)	(3,572)
Recoveries	139	214
Net charge-offs	(4,700)	(3,358)
Provision / (credit)	8,435	3,696
Ending allowance for Loan Losses	17,936	19,410
Asset-based lending
Summary of activity in allowance for loan losses and recorded investments in loans by portfolio segment based on impairment method
Beginning allowance for loan losses	7,979	6,625
Charge-offs	0	0
Recoveries	0	0
Net charge-offs	0	0
Provision / (credit)	594	(298)
Ending allowance for Loan Losses	8,573	6,327
Payroll finance
Summary of activity in allowance for loan losses and recorded investments in loans by portfolio segment based on impairment method
Beginning allowance for loan losses	2,738	1,565
Charge-offs	0	0
Recoveries	1	22
Net charge-offs	1	22
Provision / (credit)	(639)	(112)
Ending allowance for Loan Losses	2,100	1,475
Warehouse lending
Summary of activity in allowance for loan losses and recorded investments in loans by portfolio segment based on impairment method
Beginning allowance for loan losses	2,800	3,705
Charge-offs	0	0
Recoveries	0	0
Net charge-offs	0	0
Provision / (credit)	(2,107)	(597)
Ending allowance for Loan Losses	693	3,108
Factored receivables
Summary of activity in allowance for loan losses and recorded investments in loans by portfolio segment based on impairment method
Beginning allowance for loan losses	1,064	1,395
Charge-offs	(32)	(3)
Recoveries	121	3
Net charge-offs	89	0
Provision / (credit)	(61)	(226)
Ending allowance for Loan Losses	1,092	1,169
Equipment financing
Summary of activity in allowance for loan losses and recorded investments in loans by portfolio segment based on impairment method
Beginning allowance for loan losses	12,450	4,862
Charge-offs	(1,249)	(4,199)
Recoveries	131	72
Net charge-offs	(1,118)	(4,127)
Provision / (credit)	2,994	5,837
Ending allowance for Loan Losses	14,326	6,572
Public sector finance
Summary of activity in allowance for loan losses and recorded investments in loans by portfolio segment based on impairment method
Beginning allowance for loan losses	1,739	1,797
Charge-offs	0	0
Recoveries	0	0
Net charge-offs	0	0
Provision / (credit)	(605)	109
Ending allowance for Loan Losses	1,134	1,906
Commercial real estate
Summary of activity in allowance for loan losses and recorded investments in loans by portfolio segment based on impairment method
Beginning allowance for loan losses	32,285	24,945
Charge-offs	(17)	(1,353)
Recoveries	9	16
Net charge-offs	(8)	(1,337)
Provision / (credit)	810	614
Ending allowance for Loan Losses	33,087	24,222
Multi-family
Summary of activity in allowance for loan losses and recorded investments in loans by portfolio segment based on impairment method
Beginning allowance for loan losses	8,355	3,261
Charge-offs	0	0
Recoveries	103	3
Net charge-offs	103	3
Provision / (credit)	201	3,483
Ending allowance for Loan Losses	8,659	6,747
ADC
Summary of activity in allowance for loan losses and recorded investments in loans by portfolio segment based on impairment method
Beginning allowance for loan losses	1,769	1,680
Charge-offs	0	0
Recoveries	0	0
Net charge-offs	0	0
Provision / (credit)	143	352
Ending allowance for Loan Losses	1,912	2,032
Residential mortgage
Summary of activity in allowance for loan losses and recorded investments in loans by portfolio segment based on impairment method
Beginning allowance for loan losses	7,454	5,819
Charge-offs	(1,085)	(39)
Recoveries	1	15
Net charge-offs	(1,084)	(24)
Provision / (credit)	555	224
Ending allowance for Loan Losses	6,925	6,019
Consumer
Summary of activity in allowance for loan losses and recorded investments in loans by portfolio segment based on impairment method
Beginning allowance for loan losses	2,843	3,181
Charge-offs	(443)	(125)
Recoveries	243	131
Net charge-offs	(200)	6
Provision / (credit)	(120)	(82)
Ending allowance for Loan Losses	$ 2,523	$ 3,105

Allowance for Loan Losses - Nar

Allowance for Loan Losses - Narrative (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Losses [Line Items]
Maximum loan balance for credit risk to be evaluated on a homogeneous basis	$ 750,000
Special mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired transferred to originated	45,952,000	$ 51,282,000
Gross loans by segment	128,054,000	113,180,000
Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired transferred to originated	116,062,000	95,575,000
Gross loans by segment	288,694,000	266,047,000
Doubtful
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment		0
Loss
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	0
Warehouse lending | Special mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	0
Warehouse lending | Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	0
Public sector finance | Special mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	0
Public sector finance | Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	0
Originated Loan
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired transferred to originated	1,237,567,000	1,365,682,000
Originated Loan | Special mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	72,410,000	89,955,000
Originated Loan | Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	238,425,000	$ 214,578,000
Originated Loan | Doubtful
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	$ 59,000

Allowance for Loan Losses - Val

Allowance for Loan Losses - Valuation Allowances Recorded Against Portfolio Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Special mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	$ 128,054	$ 113,180
Special mention | Traditional C&I
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	7,592	12,102
Special mention | Asset-based lending
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	36,235	14,033
Special mention | Payroll finance
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	9,682
Special mention | Factored receivables
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment		0
Special mention | Equipment financing
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	27,262	9,966
Special mention | Commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	20,869	14,012
Special mention | Multi-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	29,964	43,811
Special mention | ADC
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	0
Special mention | Residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	5,002	7,410
Special mention | Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	1,130	2,164
Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	288,694	266,047
Substandard | Traditional C&I
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	53,543	52,031
Substandard | Asset-based lending
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	26,781	21,865
Substandard | Payroll finance
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	17,533	17,766
Substandard | Factored receivables
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment		508
Substandard | Equipment financing
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	23,538	21,256
Substandard | Commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	48,682	51,462
Substandard | Multi-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	37,449	24,354
Substandard | ADC
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	1,223	434
Substandard | Residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	67,444	65,906
Substandard | Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	12,501	10,465
Originated Loan | Special mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	72,410	89,955
Originated Loan | Special mention | Traditional C&I
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	7,510	12,003
Originated Loan | Special mention | Asset-based lending
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	13,228	14,033
Originated Loan | Special mention | Payroll finance
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	9,682
Originated Loan | Special mention | Factored receivables
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment		0
Originated Loan | Special mention | Equipment financing
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	14,231	9,966
Originated Loan | Special mention | Commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	10,929	3,852
Originated Loan | Special mention | Multi-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	22,366	33,321
Originated Loan | Special mention | ADC
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	0
Originated Loan | Special mention | Residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	3,212	5,179
Originated Loan | Special mention | Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	934	1,919
Originated Loan | Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	238,425	214,578
Originated Loan | Substandard | Traditional C&I
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	53,421	51,903
Originated Loan | Substandard | Asset-based lending
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	20,164	21,865
Originated Loan | Substandard | Payroll finance
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	17,533	17,766
Originated Loan | Substandard | Factored receivables
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment		508
Originated Loan | Substandard | Equipment financing
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	23,538	21,256
Originated Loan | Substandard | Commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	43,123	43,336
Originated Loan | Substandard | Multi-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	35,656	20,812
Originated Loan | Substandard | ADC
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	1,223	434
Originated Loan | Substandard | Residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	34,427	29,475
Originated Loan | Substandard | Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	9,340	7,223
Acquired Loan | Special mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	55,644	23,225
Acquired Loan | Special mention | Traditional C&I
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	82	99
Acquired Loan | Special mention | Asset-based lending
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	23,007	0
Acquired Loan | Special mention | Payroll finance
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	0
Acquired Loan | Special mention | Factored receivables
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment		0
Acquired Loan | Special mention | Equipment financing
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	13,031	0
Acquired Loan | Special mention | Commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	9,940	10,160
Acquired Loan | Special mention | Multi-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	7,598	10,490
Acquired Loan | Special mention | ADC
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	0
Acquired Loan | Special mention | Residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	1,790	2,231
Acquired Loan | Special mention | Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	196	245
Acquired Loan | Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	50,269	51,469
Acquired Loan | Substandard | Traditional C&I
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	122	128
Acquired Loan | Substandard | Asset-based lending
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	6,617	0
Acquired Loan | Substandard | Payroll finance
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	0
Acquired Loan | Substandard | Factored receivables
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment		0
Acquired Loan | Substandard | Equipment financing
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	0
Acquired Loan | Substandard | Commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	5,559	8,126
Acquired Loan | Substandard | Multi-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	1,793	3,542
Acquired Loan | Substandard | ADC
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	0	0
Acquired Loan | Substandard | Residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	33,017	36,431
Acquired Loan | Substandard | Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross loans by segment	$ 3,161	$ 3,242

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Balance of Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 1,657,814	$ 1,613,033
Finite-Lived Intangible Assets [Line Items]
Other intangible assets	124,719	129,545
Core deposits
Finite-Lived Intangible Assets [Line Items]
Other intangible assets	99,678	104,263
Customer lists
Finite-Lived Intangible Assets [Line Items]
Other intangible assets	4,541	4,740
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Other intangible assets	0	42
Trade name
Finite-Lived Intangible Assets [Line Items]
Other intangible assets	$ 20,500	$ 20,500

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Future Amortization Expense (Details) $ in Thousands	Mar. 31, 2019USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2019	$ 14,354
2020	16,800
2021	15,104
2022	13,703
2023	12,322
2024	10,448
Thereafter	21,488
Total	$ 104,219

Deposits - Balances (Details)

Deposits - Balances (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Deposits [Abstract]
Non-interest bearing demand	$ 4,321,310	$ 4,241,923
Interest bearing demand	4,400,725	4,207,392
Savings	2,358,905	2,382,520
Money market	7,611,522	7,905,382
Certificates of deposit	2,533,177	2,476,931
Total deposits	$ 21,225,639	$ 21,214,148

Deposits - Narrative (Details)

Deposits - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Deposits [Abstract]
Municipal deposits	$ 2,027,563	$ 1,751,670

Deposits - Brokered Deposits (D

Deposits - Brokered Deposits (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
List of Company's Brokered deposits
Brokered deposits	$ 1,034,701	$ 1,157,823
Interest bearing demand
List of Company's Brokered deposits
Brokered deposits	15,320	23,742
Money market
List of Company's Brokered deposits
Brokered deposits	869,175	983,889
CDARS and ICS one way
List of Company's Brokered deposits
Brokered deposits	$ 150,206	$ 150,192

Borrowings - Borrowings and Wei

Borrowings - Borrowings and Weighted Average Interest Rates (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 29, 2016
By period to maturity:
Total borrowings, amount	$ 3,633,480	$ 5,214,183
Total borrowings, rate	2.56%	2.52%
Less than one year, amount	$ 2,535,225	$ 3,958,635
Less than one year, rate	2.46%	2.48%
One to two years, amount	$ 824,912	$ 831,889
One to two years, rate	2.30%	2.28%
Two to three years, amount	$ 100,342	$ 250,716
Two to three years, rate	2.15%	2.04%
Greater than five years, amount	$ 173,001	$ 172,943
Greater than five years, rate	5.45%	5.45%
FHLB borrowings
By period to maturity:
Total borrowings, amount	$ 3,259,507	$ 4,838,772
Total borrowings, rate	2.38%	2.40%
Repurchase agreements
By period to maturity:
Total borrowings, amount	$ 27,020	$ 21,338
Total borrowings, rate	1.22%	1.20%
Senior Notes | 3.50% Senior Notes
Debt Instrument [Line Items]
Interest rate	3.50%
By period to maturity:
Total borrowings, amount	$ 173,952	$ 181,130
Total borrowings, rate	3.19%	3.19%
Subordinated Notes
Debt Instrument [Line Items]
Interest rate			5.25%
By period to maturity:
Total borrowings, amount	$ 173,001	$ 172,943
Total borrowings, rate	5.45%	5.45%

Borrowings - Narrative (Details

Borrowings - Narrative (Details) - USD ($)	Sep. 02, 2016	Mar. 29, 2016	Mar. 31, 2019	Dec. 31, 2018	Sep. 02, 2018	Oct. 02, 2017
Debt Instrument [Line Items]
Bank pledged mortgages			$ 7,556,051,000	$ 8,526,247,000
Increased borrowing capacity by pledging securities			$ 3,048,586,000
Weighted average interest rate on debt			2.56%	2.52%
Minimum
Debt Instrument [Line Items]
Repurchase agreements maturity			1 day	1 day
Maximum
Debt Instrument [Line Items]
Repurchase agreements maturity			45 days	45 days
FHLB Borrowings
Debt Instrument [Line Items]
Unused borrowing capacity			$ 4,435,364,000
Weighted average interest rate on debt			2.38%	2.40%
Subordinated notes
Debt Instrument [Line Items]
Principal amount	$ 65,000,000	$ 110,000,000
Interest rate		5.25%
Weighted average interest rate on debt			5.45%	5.45%
Private placement discount rate	1.25%	1.25%
Debt issuance costs	$ 275,000	$ 500,000
Issue premium	0.50%
Unamortized discount			$ 1,999,000
Effective yield			5.45%
Subordinated notes | Three-month LIBOR
Debt Instrument [Line Items]
Basis spread on LIBOR rates		3.937%
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Revolving line of credit amount					$ 35,000,000
Revolving line of credit balance			$ 0	$ 0
Required balance			$ 0
Duration of minimum outstanding balance			30 days
Line of Credit | One-month LIBOR | Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on LIBOR rates			1.25%
3.50% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Interest rate			3.50%
Weighted average interest rate on debt			3.19%	3.19%
Astoria Financial Corporation | 3.50% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Interest rate						3.50%
Principal amount of debt assumed in merger						$ 200,000,000
Percentage recorded for estimated fair value of debt assumed						100.76%
Weighted average interest rate on debt			3.19%
Senior Notes amount repurchased			$ 7,000,000
Gain recognized on debt repurchased			46,000
Adjustment | Astoria Financial Corporation | 3.50% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Fair value of debt			$ 579,000

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 122,084		$ 125,394
Operating Lease liabilities	$ 128,257		$ 130,860
Operating lease renewal term	10 years
Operating lease option to terminate term	2 years
Operating leases rent expense, before Topic 842 adoption		$ 4,406
Minimum
Lessee, Lease, Description [Line Items]
Operating lease remaining lease term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Operating lease remaining lease term	16 years

Leases - Lease Cost (Details)

Leases - Lease Cost (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Operating lease expense	$ 4,943
Sub-lease income	(604)
Net lease expense	$ 4,339

Leases - Maturities of Operatin

Leases - Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
Leases [Abstract]
Remainder of 2019	$ 14,697
2020	19,379
2021	17,823
2022	16,109
2023	14,504
2024	12,703
2025 and thereafter	54,229
Total lease payments	149,444
Interest	21,187
Present value of lease liabilities	$ 128,257	$ 130,860

Leases - Weighted Average Terms

Leases - Weighted Average Terms and Discount Rates (Details)	Mar. 31, 2019
Leases [Abstract]
Weighted average remaining lease term (years)	8 years 8 months 15 days
Weighted average remaining discount rate	3.25%

Derivatives - Narrative (Detail

Derivatives - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Derivative Instruments and Hedges, Assets [Abstract]
Cash Paid as STM	$ 19,224	$ 5,214

Derivatives - Derivative Inform

Derivatives - Derivative Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Other assets
Summary of derivatives
Average maturity (in years)	5 years 8 months 19 days	5 years 10 months 24 days
Weighted average fixed rate	4.69%		4.65%
Other liabilities
Summary of derivatives
Average maturity (in years)	5 years 8 months 19 days	5 years 10 months 24 days
Weighted average fixed rate	4.69%		4.65%
Interest rate swap | Other assets
Summary of derivatives
Derivative assets, notional amount	$ 1,303,871		$ 1,073,353
Derivative assets, fair value	$ 33,394		18,215
Interest rate swap | Other assets | One-month LIBOR
Summary of derivatives
Basis spread	2.26%
Interest rate swap | Other liabilities
Summary of derivatives
Derivative liabilities, notional amount	$ (1,303,871)		(1,073,353)
Swaps	$ (14,170)		(13,001)
Interest rate swap | Other liabilities | One-month LIBOR
Summary of derivatives
Basis spread	2.26%
Third-party interest rate swap | Other assets
Summary of derivatives
Derivative assets, notional amount	$ 313,515		516,419
Derivative assets, fair value	898		$ 1,963
Third-party interest rate swap | Other assets | One-month LIBOR
Summary of derivatives
Basis spread			2.29%
Third-party interest rate swap | Other liabilities
Summary of derivatives
Derivative liabilities, notional amount	(990,356)		$ (556,934)
Swaps	(10,119)		(4,351)
Customer interest rate swap | Other assets
Summary of derivatives
Derivative assets, notional amount	990,356		556,934
Derivative assets, fair value	32,496		16,252
Customer interest rate swap | Other liabilities
Summary of derivatives
Derivative liabilities, notional amount	(313,515)		(516,419)
Swaps	$ (4,051)		$ (8,650)
Customer interest rate swap | Other liabilities | One-month LIBOR
Summary of derivatives
Basis spread			2.29%

Income Taxes - (Details)

Income Taxes - (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Efftective tax rate reconciliation:
Income before income tax expense	$ 129,911,000	$ 128,328,000
Tax at federal statutory rate of 21%	27,281,000	26,948,000
State and local income taxes, net of federal tax benefit	6,690,000	6,059,000
Tax exempt interest, net of disallowed interest	(5,253,000)	(4,627,000)
BOLI income	(769,000)	(763,000)
Low income housing tax credits and other benefits	(4,347,000)	(2,125,000)
Low income housing investment amortization expense	3,810,000	998,000
Equity-based stock compensation benefit	(106,000)	(379,000)
FDIC insurance premium limitation	254,000	486,000
Other, net	914,000	2,859,000
Actual income tax expense	$ 28,474,000	$ 29,456,000
Effective income tax rate	21.90%	23.00%
Net deferred tax asset	$ 7,742,000		$ 53,990,000
Valuation allowance	0		0
Unrecognized tax benefits	$ 0		$ 0

Stock-Based Compensation - Narr

Stock-Based Compensation - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)Planshares	Mar. 31, 2018shares	Dec. 31, 2018shares	May 28, 2015shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of active stock-based compensation plans | Plan	1
Shares remaining that are authorized and available for future grant (in shares)	778,517		2,318,950
Intrinsic value of options outstanding | $	$ 5,086
Grant of share options (in shares)	0	0
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of contract	10 years
Stock options | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for awards	1 year
Stock options | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for awards	5 years
Non-vested stock awards/performance units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average period total unrecognized compensation cost related to non-vested shares granted	2 years 5 months 19 days
2015 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)				2,800,000

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock-based Compensation Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Share-Based Compensation Arrangement By Share-Based Payment Award, Shares Available For Grant [Roll Forward]
Beginning balance (in shares)	2,318,950
Granted (in shares)	(1,501,511)
Stock awards vested (in shares)	70,353
Exercised (in shares)	0
Forfeited (in shares)	31,431
Canceled/expired (in shares)	0
Ending balance (in shares)	778,517
Stock options outstanding - Number of shares
Beginning balance (in shares)	686,539
Granted (in shares)	0	0
Stock awards vested (in shares)	0
Exercised (in shares)	(3,893)
Forfeited (in shares)	0
Canceled/expired (in shares)	0
Ending balance (in shares)	682,646
Exercisable at end of period (in shares)	682,646
Stock options outstanding - Weighted average exercise price
Beginning balance (USD per share)	$ 11.20
Granted (USD per share)	0
Stock awards vested (USD per share)	0
Exercised (USD per share)	14.05
Forfeited (USD per share)	0
Canceled/expired (USD per share)	0
Ending balance (USD per share)	11.18
Exercisable at end of period (USD per share)	$ 11.18
Performance measurement period	3 years
Vesting percentage	150.00%
Stock-based compensation expense	$ 5,123	$ 2,854
Non-vested stock awards/performance units
Stock options outstanding - Weighted average exercise price
Stock-based compensation expense	$ 5,123	$ 2,852
Recognition and Retention Plan | Non-vested stock awards/performance units
Non-vested stock awards/stock units outstanding - Number of shares
Beginning balance (in shares)	1,333,514
Granted (in shares)	1,501,511
Stock awards vested (in shares)	(489,373)
Forfeited (in shares)	(31,431)
Canceled/expired (in shares)	0
Ending balance (in shares)	2,314,221
Non-vested stock awards/stock units outstanding - Weighted average grant date fair value
Beginning balance (USD per share)	$ 22.12
Granted (USD per share)	19.63
Stock awards vested (USD per share)	19.43
Forfeited (USD per share)	23.07
Canceled/expired (USD per share)	0
Ending balance (USD per share)	$ 21.06
February 2016 | Performance Shares
Stock options outstanding - Weighted average exercise price
Stock-based compensation expense	$ 1,000

Stock-Based Compensation - St_2

Stock-Based Compensation - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 5,123	$ 2,854
Stock-based compensation expense, income tax benefit	1,127	665
Proceeds from stock option exercises	55	329
Unrecognized stock-based compensation, stock options	0
Unrecognized stock-based compensation, non-vested stock awards/performance units	42,619
Total unrecognized stock-based compensation expense	42,619
Stock options
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	0	2
Non-vested stock awards/performance units
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 5,123	$ 2,852

Pension and Other Post-Retire_3

Pension and Other Post-Retirement Benefits - Net Pension and Post-retirement Expense (Details) - UNITED STATES - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0
Interest cost	2,293	2,122
Expected return on plan assets	(2,394)	(3,353)
Net amortization and deferral	0	0
Net periodic pension and other post-retirement (benefit) expense	(101)	(1,231)
Other Post Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	15	21
Interest cost	305	273
Expected return on plan assets	0	0
Net amortization and deferral	(82)	0
Net periodic pension and other post-retirement (benefit) expense	$ 238	$ 294

Pension and Other Post-Retire_4

Pension and Other Post-Retirement Benefits - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Employer contributions to fund pension and other post retirement benefits	$ 391	$ 276
Overfunded Plan | Astoria Bank Pension Plan | Other liabilities
Defined Benefit Plan Disclosure [Line Items]
Funded (unfunded) amount	13,747		$ 13,608
Underfunded Plan | Other liabilities
Defined Benefit Plan Disclosure [Line Items]
Funded (unfunded) amount	$ (35,153)		$ (35,278)

Non-Interest Income and Other_3

Non-Interest Income and Other Non-Interest Expense - (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Other Income and Expenses [Abstract]
Professional fees	$ 4,148	$ 3,502
Advertising and promotion	991	1,543
Telephone	1,895	1,558
Operational losses	583	1,275
Insurance & surety bond premium	1,062	571
Pension plan expense (benefit)	74	(1,008)
Other	8,191	5,833
Total other non-interest expense	$ 16,944	$ 13,274

Earnings Per Common Share - (De

Earnings Per Common Share - (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 99,448	$ 96,873
Weighted average common shares outstanding for computation of basic EPS (in shares)	213,157,090	224,730,686
Common-equivalent shares due to the dilutive effect of stock options and unvested performance share grants (in shares)	348,752	533,461
Weighted average common shares for computation of diluted EPS (in shares)	213,505,842	225,264,147
EPS:
Basic (USD per share)	$ 0.47	$ 0.43
Diluted (USD per share)	$ 0.47	$ 0.43
Weighted average common shares that could be exercised that were anti-dilutive for the period (in shares)	0	0

Stockholders' Equity - Narrativ

Stockholders' Equity - Narrative (Details) - USD ($) $ in Thousands	Apr. 24, 2019	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019
Class of Stock [Line Items]
Aggregate dividend capacity without prior regulatory approval		$ 165,000		$ 165,000
Shares authorized for repurchase program (in shares)		20,000,000		20,000,000
Stock repurchased during period (in shares)		8,002,595	0	17,117,366
Sterling National Bank
Class of Stock [Line Items]
Tier 2 capital		$ 173,001		$ 173,001
Sterling Bancorp
Class of Stock [Line Items]
Tier 2 capital		$ 144,824		$ 144,824
Subsequent Event
Class of Stock [Line Items]
Additional number of shares authorized to be repurchased	10,000,000

Stockholders' Equity - Complian

Stockholders' Equity - Compliance with Regulatory Capital Requirements (Schedule) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Sterling National Bank
Common equity tier 1 to RWA:
Tier 1 common equity, actual, capital amount	$ 2,780,903	$ 2,915,484
Tier 1 common equity, actual, ratio	13.13%	13.55%
Tier 1 common equity required for minimum capital adequacy, phase-in schedule, capital amount		$ 1,371,480
Tier 1 common equity required for minimum capital adequacy, phase-in schedule, ratio		6.375%
Tier 1 common equity required for minimum capital adequacy, fully phased-in, capital amount	$ 1,483,071	$ 1,505,939
Tier 1 common equity required for minimum capital adequacy, phase-in schedule, ratio	7.00%	7.00%
Tier 1 common equity required to be well capitalized, capital amount	$ 1,377,138	$ 1,398,372
Tier 1 common equity required to be well capitalized, ratio	6.50%	6.50%
Tier 1 capital to RWA:
Tier 1 risk-based capital, actual, capital amount	$ 2,780,903	$ 2,915,484
Tier 1 risk-based capital, ratio	13.13%	13.55%
Tier 1 risk-based capital required for minimum capital adequacy, phase-in schedule, capital amount		$ 1,694,181
Tier 1 risk-based capital required for minimum capital adequacy, phase-in schedule, ratio		7.875%
Tier 1 risk-based capital required for minimum capital adequacy, fully phased-in, capital amount	$ 1,800,872	$ 1,828,640
Tier 1 risk-based capital required for minimum capital adequacy, fully phased-in, ratio	8.50%	8.50%
Tier 1 risk-based capital required to be well capitalized, capital amount	$ 1,694,939	$ 1,721,073
Tier 1 risk-based capital required to be well capitalized, ratio	8.00%	8.00%
Total capital to RWA:
Total risk-based capital, actual, capital amount	$ 3,053,518	$ 3,184,758
Total risk-based capital, ratio	14.41%	14.80%
Total risk-based capital required for minimum capital adequacy, phase-in schedule, capital amount		$ 2,124,450
Total risk-based capital required for minimum capital adequacy, phase-in schedule, ratio		9.875%
Total risk-based capital required for minimum capital adequacy, fully phased-in, capital amount	$ 2,224,607	$ 2,258,908
Total risk-based capital required for minimum capital adequacy, fully phased-in, ratio	10.50%	10.50%
Total risk-based capital required to be well capitalized, capital amount	$ 2,118,673	$ 2,151,341
Total risk-based capital required to be well capitalized, ratio	10.00%	10.00%
Tier 1 leverage ratio:
Tier 1 (core) capital, actual, capital amount	$ 2,780,903	$ 2,915,484
Tier 1 (core) capital, ratio	9.58%	9.94%
Tier 1 (core) capital required for minimum capital adequacy, phase-in schedule, capital amount		$ 1,172,964
Tier 1 (core) capital required for minimum capital adequacy, phase-in schedule, ratio		4.00%
Tier 1 (core) capital required for minimum capital adequacy, fully phased-in, capital amount	$ 1,161,717	$ 1,172,964
Tier 1 (core) capital required for minimum capital adequacy, fully phased-in, ratio	4.00%	4.00%
Tier 1 (core) capital required to be well capitalized, capital amount	$ 1,452,147	$ 1,466,206
Tier 1 (core) capital required to be well capitalized, ratio	5.00%	5.00%
Sterling Bancorp
Common equity tier 1 to RWA:
Tier 1 common equity, actual, capital amount	$ 2,539,554	$ 2,649,593
Tier 1 common equity, actual, ratio	11.98%	12.31%
Tier 1 common equity required for minimum capital adequacy, phase-in schedule, capital amount		$ 1,372,457
Tier 1 common equity required for minimum capital adequacy, phase-in schedule, ratio		6.375%
Tier 1 common equity required for minimum capital adequacy, fully phased-in, capital amount	$ 1,484,270	$ 1,507,011
Tier 1 common equity required for minimum capital adequacy, phase-in schedule, ratio	7.00%	7.00%
Tier 1 capital to RWA:
Tier 1 risk-based capital, actual, capital amount	$ 2,677,772	$ 2,788,016
Tier 1 risk-based capital, ratio	12.63%	12.95%
Tier 1 risk-based capital required for minimum capital adequacy, phase-in schedule, capital amount		$ 1,695,388
Tier 1 risk-based capital required for minimum capital adequacy, phase-in schedule, ratio		7.875%
Tier 1 risk-based capital required for minimum capital adequacy, fully phased-in, capital amount	$ 1,802,328	$ 1,829,942
Tier 1 risk-based capital required for minimum capital adequacy, fully phased-in, ratio	8.50%	8.50%
Total capital to RWA:
Total risk-based capital, actual, capital amount	$ 2,922,209	$ 3,027,124
Total risk-based capital, ratio	13.78%	14.06%
Total risk-based capital required for minimum capital adequacy, phase-in schedule, capital amount		$ 2,125,963
Total risk-based capital required for minimum capital adequacy, phase-in schedule, ratio		9.875%
Total risk-based capital required for minimum capital adequacy, fully phased-in, capital amount	$ 2,226,405	$ 2,260,517
Total risk-based capital required for minimum capital adequacy, fully phased-in, ratio	10.50%	10.50%
Tier 1 leverage ratio:
Tier 1 (core) capital, actual, capital amount	$ 2,677,772	$ 2,788,016
Tier 1 (core) capital, ratio	9.21%	9.50%
Tier 1 (core) capital required for minimum capital adequacy, phase-in schedule, capital amount		$ 1,173,883
Tier 1 (core) capital required for minimum capital adequacy, phase-in schedule, ratio		4.00%
Tier 1 (core) capital required for minimum capital adequacy, fully phased-in, capital amount	$ 1,162,518	$ 1,173,883
Tier 1 (core) capital required for minimum capital adequacy, fully phased-in, ratio	4.00%	4.00%

Commitments and Contingencies_2

Commitments and Contingencies - (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Loan origination commitments
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Lending-related instruments	$ 414,545	$ 417,027
Unused lines of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Lending-related instruments	1,823,040	1,737,315
Letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Lending-related instruments	$ 300,123	$ 287,779

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financial assets:
Available for sale, at fair value	$ 3,847,799	$ 3,870,563
Level 1 inputs
Financial assets:
Available for sale, at fair value	0	0
Swaps	0	0
Financial liabilities:
Swaps	0	0
Level 2 inputs
Financial assets:
Available for sale, at fair value	3,847,799	3,870,563
Swaps	33,394	18,215
Financial liabilities:
Swaps	14,170	13,001
Level 3 inputs
Financial assets:
Available for sale, at fair value	0	0
Swaps	0	0
Financial liabilities:
Swaps	0	0
Fair Value, Measurements, Recurring
Financial assets:
Available for sale, at fair value	3,847,799	3,870,563
Swaps	33,394	18,215
Total assets	3,881,193	3,888,778
Financial liabilities:
Swaps	14,170	13,001
Total liabilities	14,170	13,001
Fair Value, Measurements, Recurring | Level 1 inputs
Financial assets:
Available for sale, at fair value	0	0
Swaps	0	0
Total assets	0	0
Financial liabilities:
Swaps	0	0
Total liabilities	0	0
Fair Value, Measurements, Recurring | Level 2 inputs
Financial assets:
Available for sale, at fair value	3,847,799	3,870,563
Swaps	33,394	18,215
Total assets	3,881,193	3,888,778
Financial liabilities:
Swaps	14,170	13,001
Total liabilities	14,170	13,001
Fair Value, Measurements, Recurring | Level 3 inputs
Financial assets:
Available for sale, at fair value	0	0
Swaps	0	0
Total assets	0	0
Financial liabilities:
Swaps	0	0
Total liabilities	0	0
Agency-backed
Financial assets:
Available for sale, at fair value	2,051,304	2,268,851
Agency-backed | Fair Value, Measurements, Recurring
Financial assets:
Available for sale, at fair value	2,051,304	2,268,851
Agency-backed | Fair Value, Measurements, Recurring | Level 1 inputs
Financial assets:
Available for sale, at fair value	0	0
Agency-backed | Fair Value, Measurements, Recurring | Level 2 inputs
Financial assets:
Available for sale, at fair value	2,051,304	2,268,851
Agency-backed | Fair Value, Measurements, Recurring | Level 3 inputs
Financial assets:
Available for sale, at fair value	0	0
CMOs/Other MBS
Financial assets:
Available for sale, at fair value	529,510	574,770
CMOs/Other MBS | Fair Value, Measurements, Recurring
Financial assets:
Available for sale, at fair value	529,510	574,770
CMOs/Other MBS | Fair Value, Measurements, Recurring | Level 1 inputs
Financial assets:
Available for sale, at fair value	0	0
CMOs/Other MBS | Fair Value, Measurements, Recurring | Level 2 inputs
Financial assets:
Available for sale, at fair value	529,510	574,770
CMOs/Other MBS | Fair Value, Measurements, Recurring | Level 3 inputs
Financial assets:
Available for sale, at fair value	0	0
Total residential MBS
Financial assets:
Available for sale, at fair value	2,580,814	2,843,621
Total residential MBS | Fair Value, Measurements, Recurring
Financial assets:
Available for sale, at fair value	2,580,814	2,843,621
Total residential MBS | Fair Value, Measurements, Recurring | Level 1 inputs
Financial assets:
Available for sale, at fair value	0	0
Total residential MBS | Fair Value, Measurements, Recurring | Level 2 inputs
Financial assets:
Available for sale, at fair value	2,580,814	2,843,621
Total residential MBS | Fair Value, Measurements, Recurring | Level 3 inputs
Financial assets:
Available for sale, at fair value	0	0
Federal agencies
Financial assets:
Available for sale, at fair value	216,272	273,973
Federal agencies | Fair Value, Measurements, Recurring
Financial assets:
Available for sale, at fair value	216,272	273,973
Federal agencies | Fair Value, Measurements, Recurring | Level 1 inputs
Financial assets:
Available for sale, at fair value	0	0
Federal agencies | Fair Value, Measurements, Recurring | Level 2 inputs
Financial assets:
Available for sale, at fair value	216,272	273,973
Federal agencies | Fair Value, Measurements, Recurring | Level 3 inputs
Financial assets:
Available for sale, at fair value	0	0
Corporate
Financial assets:
Available for sale, at fair value	368,447	527,965
Corporate | Fair Value, Measurements, Recurring
Financial assets:
Available for sale, at fair value	368,447	527,965
Corporate | Fair Value, Measurements, Recurring | Level 1 inputs
Financial assets:
Available for sale, at fair value	0	0
Corporate | Fair Value, Measurements, Recurring | Level 2 inputs
Financial assets:
Available for sale, at fair value	368,447	527,965
Corporate | Fair Value, Measurements, Recurring | Level 3 inputs
Financial assets:
Available for sale, at fair value	0	0
State and municipal
Financial assets:
Available for sale, at fair value	682,266	225,004
State and municipal | Fair Value, Measurements, Recurring
Financial assets:
Available for sale, at fair value	682,266	225,004
State and municipal | Fair Value, Measurements, Recurring | Level 1 inputs
Financial assets:
Available for sale, at fair value	0	0
State and municipal | Fair Value, Measurements, Recurring | Level 2 inputs
Financial assets:
Available for sale, at fair value	682,266	225,004
State and municipal | Fair Value, Measurements, Recurring | Level 3 inputs
Financial assets:
Available for sale, at fair value	0	0
Total other securities
Financial assets:
Available for sale, at fair value	1,266,985	1,026,942
Total other securities | Fair Value, Measurements, Recurring
Financial assets:
Available for sale, at fair value	1,266,985	1,026,942
Total other securities | Fair Value, Measurements, Recurring | Level 1 inputs
Financial assets:
Available for sale, at fair value	0	0
Total other securities | Fair Value, Measurements, Recurring | Level 2 inputs
Financial assets:
Available for sale, at fair value	1,266,985	1,026,942
Total other securities | Fair Value, Measurements, Recurring | Level 3 inputs
Financial assets:
Available for sale, at fair value	$ 0	$ 0

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maximum loan balance for credit risk to be evaluated on a homogeneous basis	$ 750,000
Changes in fair value recognized on provisions on loans held by the Company	3,958,000	$ 542,000
Mortgage servicing rights	$ 11,105,000		$ 11,715,000
Percentage appraisals discounted	22.00%		22.00%
Assets taken in foreclosure, defaulted loans and facilities held for sale	$ 16,502,000		$ 19,377,000
Changes in fair value recognized through income for foreclosed assets held by the Company	141,000	$ 200,000
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Portfolio loans, net	$ 92,373,000		$ 100,998,000
Measurement Input, Prepayment Rate | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and liabilities, measurement input	8.74%	7.98%
Measurement Input, Prepayment Rate | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and liabilities, measurement input	19.53%	24.07%
Measurement Input, Prepayment Rate | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and liabilities, measurement input	9.14%	8.54%
Measurement Input, Discount Rate | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and liabilities, measurement input	9.06%		9.00%
Measurement Input, Discount Rate | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and liabilities, measurement input	20.00%	20.00%
Measurement Input, Discount Rate | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing assets and liabilities, measurement input	9.54%	9.60%

Fair Value Measurements - Impai

Fair Value Measurements - Impaired Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Level 1 inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	$ 0	$ 0
Level 2 inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0	0
Level 3 inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	19,859,037	19,033,743
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	92,373	100,998
Collateral Pledged | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	35,282	41,484
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Traditional C&I
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	20,828	28,780
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Asset-based lending
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	1,294
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Equipment financing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	252
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	10,592	10,725
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Multi-family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	1,183	1,210
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	1,133	769
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 1 inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 1 inputs | Traditional C&I
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 1 inputs | Asset-based lending
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 1 inputs | Equipment financing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 1 inputs | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 1 inputs | Multi-family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 1 inputs | Residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 1 inputs | ADC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value		0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 2 inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 2 inputs | Traditional C&I
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 2 inputs | Asset-based lending
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 2 inputs | Equipment financing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 2 inputs | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 2 inputs | Multi-family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 2 inputs | Residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 2 inputs | ADC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value		0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 3 inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	35,282	41,484
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 3 inputs | Traditional C&I
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	20,828	28,780
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 3 inputs | Asset-based lending
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	1,294
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 3 inputs | Equipment financing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	252
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 3 inputs | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	10,592	10,725
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 3 inputs | Multi-family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	1,183	1,210
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 3 inputs | Residential mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value	$ 1,133
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Level 3 inputs | ADC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans measured at fair value		$ 769

Fair Value Measurements - Sum_2

Fair Value Measurements - Summary of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financial assets:
Available for sale, at fair value	$ 3,847,799	$ 3,870,563
Securities held to maturity, fair value	2,079,057	2,740,522
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Senior Notes	(173,952)	(181,130)
Subordinated Notes	(173,001)	(172,943)
Carrying amount
Financial assets:
Cash and cash equivalents	314,255	438,110
Available for sale, at fair value	3,847,799	3,870,563
Securities held to maturity, fair value	2,067,251	2,796,617
Loans held for sale	248,972	1,565,979
Portfolio loans, net	19,809,513	19,122,853
Accrued interest receivable on securities	39,419	38,722
Accrued interest receivable on loans	76,345	68,389
FHLB stock and FRB stock	298,455	369,690
Swaps	33,394	18,215
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Non-maturity deposits	(18,692,462)	(18,737,217)
Certificates of deposit	(2,533,177)	(2,476,931)
FHLB borrowings	(3,259,507)	(4,838,772)
Other borrowings	(27,020)	(21,338)
Senior Notes	(173,952)	(181,130)
Subordinated Notes	(173,001)	(172,943)
Mortgage escrow funds	(102,036)	(72,891)
Accrued interest payable on deposits	(4,222)	(3,191)
Accrued interest payable on borrowings	(14,751)	(11,823)
Swaps	(14,170)	(13,001)
Level 1 inputs
Financial assets:
Cash and cash equivalents	314,255	438,110
Available for sale, at fair value	0	0
Securities held to maturity, fair value	0	0
Loans held for sale	0	0
Portfolio loans, net	0	0
Accrued interest receivable on securities	0	0
Accrued interest receivable on loans	0	0
FHLB stock and FRB stock	0	0
Swaps	0	0
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Non-maturity deposits	(18,692,462)	(18,737,217)
Certificates of deposit	0	0
FHLB borrowings	0	0
Other borrowings	0	0
Senior Notes	0	0
Subordinated Notes	0	0
Mortgage escrow funds	0	0
Accrued interest payable on deposits	0	0
Accrued interest payable on borrowings	0	0
Swaps	0	0
Level 2 inputs
Financial assets:
Cash and cash equivalents	0	0
Available for sale, at fair value	3,847,799	3,870,563
Securities held to maturity, fair value	2,079,057	2,740,522
Loans held for sale	248,972	1,565,979
Portfolio loans, net	0	0
Accrued interest receivable on securities	39,419	38,722
Accrued interest receivable on loans	0	0
FHLB stock and FRB stock	0	0
Swaps	33,394	18,215
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Non-maturity deposits	0	0
Certificates of deposit	(2,513,906)	(2,447,534)
FHLB borrowings	(3,250,738)	(4,821,652)
Other borrowings	(27,018)	(21,337)
Senior Notes	(179,634)	(179,786)
Subordinated Notes	(175,388)	(177,481)
Mortgage escrow funds	(102,036)	(64,074)
Accrued interest payable on deposits	(4,222)	(3,191)
Accrued interest payable on borrowings	(14,751)	(11,823)
Swaps	(14,170)	(13,001)
Level 3 inputs
Financial assets:
Cash and cash equivalents	0	0
Available for sale, at fair value	0	0
Securities held to maturity, fair value	0	0
Loans held for sale	0	0
Portfolio loans, net	19,859,037	19,033,743
Accrued interest receivable on securities	0	0
Accrued interest receivable on loans	76,345	68,389
FHLB stock and FRB stock	0	0
Swaps	0	0
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Non-maturity deposits	0	0
Certificates of deposit	0	0
FHLB borrowings	0	0
Other borrowings	0	0
Senior Notes	0	0
Subordinated Notes	0	0
Mortgage escrow funds	0	0
Accrued interest payable on deposits	0	0
Accrued interest payable on borrowings	0	0
Swaps	$ 0	$ 0

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss - Components of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), before tax	$ 82,000	$ (65,987)
Other comprehensive income (loss), tax benefit	(22,665)	18,238
Other comprehensive income (loss), net of tax	59,335	(47,749)
Total stockholders’ equity	4,419,223	4,273,755	$ 4,428,853	$ 4,240,178
Net unrealized holding (loss) gain on available for sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total stockholders’ equity	(19,577)	(75,109)	(75,077)	(22,324)
Net unrealized holding (loss) gain on available for sale securities | Available-for-sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), before tax	(27,055)		(103,756)
Other comprehensive income (loss), tax benefit	7,478		28,679
Other comprehensive income (loss), net of tax	(19,577)		(75,077)
Net unrealized holding (loss) gain on available for sale securities | Held-to-maturity securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), before tax	(1,101)		(3,518)
Other comprehensive income (loss), tax benefit	304		972
Other comprehensive income (loss), net of tax	(797)		(2,546)
Net unrealized holding (loss) gain on retirement plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), before tax	18,783		15,900
Other comprehensive income (loss), tax benefit	(5,019)		(4,222)
Other comprehensive income (loss), net of tax	13,764		11,678
Total stockholders’ equity	13,764	(901)	11,678	(1,164)
Accumulated other comprehensive (loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), net of tax	59,335	(47,749)
Total stockholders’ equity	$ (6,610)	$ (79,044)	$ (65,945)	$ (26,166)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Loss - Changes in AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning	$ 4,428,853	$ 4,240,178
Reclassification of the stranded income tax effects from the enactment of the Tax Cuts and Jobs Act from accumulated other comprehensive (loss)		(5,129)
Other comprehensive gain (loss) before reclassification	54,508	(53,830)
Securities reclassified from held to maturity to available for sale	(8,548)
Amounts reclassified from accumulated other comprehensive loss	13,375	6,081
Total other comprehensive income	59,335	(47,749)
Balance, ending	4,419,223	4,273,755
Net unrealized holding (loss) gain on available for sale securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning	(75,077)	(22,324)
Reclassification of the stranded income tax effects from the enactment of the Tax Cuts and Jobs Act from accumulated other comprehensive (loss)		(4,376)
Other comprehensive gain (loss) before reclassification	54,508	(53,830)
Securities reclassified from held to maturity to available for sale	(8,548)
Amounts reclassified from accumulated other comprehensive loss	9,540	5,421
Total other comprehensive income	55,500	(48,409)
Balance, ending	(19,577)	(75,109)
Net unrealized holding (loss)gain on securities transferred to held to maturity
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning	(2,546)	(2,678)
Reclassification of the stranded income tax effects from the enactment of the Tax Cuts and Jobs Act from accumulated other comprehensive (loss)		(525)
Other comprehensive gain (loss) before reclassification	0	0
Securities reclassified from held to maturity to available for sale	0
Amounts reclassified from accumulated other comprehensive loss	1,749	169
Total other comprehensive income	1,749	169
Balance, ending	(797)	(3,034)
Net unrealized holding (loss) gain on retirement plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning	11,678	(1,164)
Reclassification of the stranded income tax effects from the enactment of the Tax Cuts and Jobs Act from accumulated other comprehensive (loss)		(228)
Other comprehensive gain (loss) before reclassification	0	0
Securities reclassified from held to maturity to available for sale	0
Amounts reclassified from accumulated other comprehensive loss	2,086	491
Total other comprehensive income	2,086	491
Balance, ending	13,764	(901)
Accumulated other comprehensive (loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning	(65,945)	(26,166)
Reclassification of the stranded income tax effects from the enactment of the Tax Cuts and Jobs Act from accumulated other comprehensive (loss)		(5,129)
Balance, ending	$ (6,610)	$ (79,044)