PrivateBancorp (PVTB) 10-Q 6 Aug 15 2015 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 31, 2015
Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Entity Registrant Name	PRIVATEBANCORP, INC
Entity Central Index Key	889,936
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		78,789,093
Nonvoting Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		0

Consolidated Statements Of Fina

Consolidated Statements Of Financial Condition - Entity [Domain] - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Assets
Cash and due from banks		$ 185,983	$ 132,211
Federal funds sold and interest-bearing deposits in banks		192,531	292,341
Loans held-for-sale		54,263	115,161
Securities available-for-sale, at fair value (pledged as collateral to creditors: $246.7 million - 2015; $86.5 million - 2014)		1,698,233	1,645,344
Securities held-to-maturity, at amortized cost (fair value: $1.2 billion - 2015; $1.1 billion - 2014)		1,199,120	1,129,285
Federal Home Loan Bank (FHLB) stock		25,854	28,666
Loans – excluding covered assets, net of unearned fees		12,543,281	11,892,219
Allowance for loan losses		(157,051)	(152,498)
Loans, net of allowance for loan losses and unearned fees		12,386,230	11,739,721
Covered assets		30,529	34,132
Allowance for covered loan losses		(6,332)	(5,191)
Covered assets, net of allowance for covered loan losses		24,197	28,941
Other real estate owned, excluding covered assets		15,084	17,416
Premises, furniture, and equipment, net		37,672	39,143
Accrued interest receivable		43,442	40,531
Investment in bank owned life insurance		55,926	55,207
Goodwill		94,041	94,041
Other intangible assets		4,586	5,885
Derivative assets	[1]	47,442	43,062
Other assets		161,291	196,427
Total assets		16,225,895	15,603,382
Demand deposits:
Noninterest-bearing		3,702,377	3,516,695
Interest-bearing		1,304,270	1,907,320
Savings deposits and money market accounts		5,992,288	5,171,025
Time deposits		2,390,001	2,494,928
Total deposits		13,388,936	13,089,968
Deposits held-for-sale		0	122,216
Short-term borrowings		434,695	432,385
Long-term debt		694,788	344,788
Accrued interest payable		7,543	6,948
Derivative liabilities	[1]	24,696	26,767
Other liabilities		90,441	98,631
Total liabilities		14,641,099	14,121,703
Equity
Common stock (no par value, $1 stated value; authorized shares: 174 million; issued shares: 78,717,535 - 2015 and 78,179,542 - 2014)		78,047	77,211
Treasury stock, at cost (742 - 2015 and 1,704 - 2014)		(29)	(53)
Additional paid-in capital		1,051,778	1,034,048
Retained earnings		435,872	349,556
Accumulated other comprehensive income, net of tax		19,128	20,917
Total equity		1,584,796	1,481,679
Total liabilities and equity		$ 16,225,895	$ 15,603,382
[1]	All derivative contracts are over-the-counter contracts.

Consolidated Statements Of Fin3

Consolidated Statements Of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Securities available-for-sale, pledged as collateral to creditors	$ 246,683	$ 86,527
Securities held-to-maturity, at fair value	$ 1,198,460	$ 1,132,615
Common Stock, Par or Stated Value Per Share	$ 1	$ 1
Common Stock, Shares Authorized	174,000,000	174,000,000
Common Stock, Shares, Issued	78,717,535	78,179,542
Treasury Stock, Shares	742	1,704

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest Income
Loans, including fees	$ 125,647	$ 113,696	$ 248,349	$ 223,895
Federal funds sold and interest-bearing deposits in banks	245	139	506	281
Securities:
Taxable	13,541	13,625	27,097	26,880
Exempt from Federal income taxes	1,981	1,432	3,787	2,961
Other interest income	63	59	111	92
Total interest income	141,477	128,951	279,850	254,109
Interest Expense
Interest-bearing demand deposits	966	842	1,972	1,784
Savings deposits and money market accounts	4,953	4,087	9,563	8,061
Time deposits	5,730	5,034	11,369	9,840
Short-term and secured borrowings	234	141	431	337
Long-term debt	4,972	6,496	9,900	12,984
Total interest expense	16,855	16,600	33,235	33,006
Net interest income	124,622	112,351	246,615	221,103
Provision for loan and covered loan losses	2,116	327	7,762	4,034
Net interest income after provision for loan and covered loan losses	122,506	112,024	238,853	217,069
Non-interest Income
Asset management	4,741	4,440	9,104	8,787
Mortgage banking	4,152	2,626	7,927	4,258
Capital markets products	4,919	5,006	9,091	9,089
Treasury management	7,421	6,676	14,748	13,275
Loan, letter of credit and commitment fees	4,914	4,806	10,020	9,440
Syndication fees	5,375	5,440	7,997	8,753
Deposit service charges and fees and other income	1,538	1,069	7,155	2,366
Net securities gains (losses)	(1)	196	533	527
Total non-interest income	33,059	30,259	66,575	56,495
Non-interest Expense
Salaries and employee benefits	50,020	44,405	102,381	89,025
Net occupancy and equipment expense	8,159	7,728	16,023	15,504
Technology and related costs	3,420	3,205	6,841	6,488
Marketing	4,666	3,589	8,244	6,002
Professional services	2,585	2,905	4,895	5,664
Outsourced servicing costs	2,034	1,850	3,714	3,314
Net foreclosed property expenses	585	2,771	1,913	5,594
Postage, telephone, and delivery	899	927	1,761	1,752
Insurance	3,450	3,016	6,661	5,919
Loan and collection expense	2,210	1,573	4,478	2,629
Other expenses	3,869	3,496	8,131	9,324
Total non-interest expense	81,897	75,465	165,042	151,215
Income (loss) before income taxes	73,668	66,818	140,386	122,349
Income tax provision	27,246	25,994	52,480	47,020
Net income (loss) available to common stockholders	$ 46,422	$ 40,824	$ 87,906	$ 75,329
Per Common Share Data
Basic earnings per share (in dollars)	$ 0.59	$ 0.52	$ 1.12	$ 0.97
Diluted earnings per share (in dollars)	0.58	0.52	1.10	0.96
Cash dividends declared (per share)	$ 0.01	$ 0.01	$ 0.02	$ 0.02
Weighted-average common shares outstanding	77,942	77,062	77,676	76,869
Weighted-average diluted common shares outstanding	79,158	77,806	78,837	77,612

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net income (loss)	$ 46,422	$ 40,824	$ 87,906	$ 75,329
Available-for-sale securities:
Net unrealized gains (losses)	(13,997)	11,559	(5,407)	15,236
Reclassification of net losses (gains) included in net income	1	(196)	(533)	(527)
Income tax benefit (expense)	5,429	(4,444)	2,281	(5,764)
Net unrealized (losses) gains on available-for-sale securities	(8,567)	6,919	(3,659)	8,945
Cash flow hedges:
Net unrealized gains (losses)	(504)	7,741	8,126	11,878
Reclassification of net gains included in net income	(2,534)	(2,264)	(5,072)	(4,307)
Income tax benefit (expense)	1,186	(2,137)	(1,184)	(2,954)
Net unrealized (losses) gains on cash flow hedges	(1,852)	3,340	1,870	4,617
Other Comprehensive Income (Loss)	(10,419)	10,259	(1,789)	13,562
Comprehensive income	$ 36,003	$ 51,083	$ 86,117	$ 88,891

Consolidated Statements Of Chan

Consolidated Statements Of Changes In Equity (Unaudited) - Class of Stock [Domain] - USD ($) shares in Thousands, $ in Thousands		Total	Common Shares Outstanding [Member]	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]		Accumulated Other Comprehensive Income [Member]
Beginning Balance (in shares) at Dec. 31, 2013			77,707
Beginning Balance at Dec. 31, 2013		$ 1,301,904		$ 76,825	$ (6,415)	$ 1,022,023	$ 199,627		$ 9,844
Comprehensive income (loss)
Net income (loss)		75,329					75,329	[1]
Other comprehensive income (loss)		13,562							13,562	[1]
Total comprehensive income (loss)	[1]	88,891
Cash dividends declared:
Cash dividends declared ($0.01 per common share)		(1,576)					(1,576)
Common stock issued for: [Abstract]
Nonvested (restricted) stock grants, shares			374
Nonvested (restricted) stock grants		0		(242)	5,548	(5,306)
Exercise of stock options, shares			154
Exercise of stock options		3,054		0	4,429	(1,375)
Restricted stock activity		0		528	360	(888)
Deferred compensation plan, shares			13
Deferred compensation plan		384		0	384	0
Excess tax benefit from share-based compensation plans		2,838				2,838
Stock repurchased in connection with share-based compensation plans, shares			(179)
Stock repurchased in connection with share-based compensation plans		(5,251)			(5,251)
Share-based compensation expense		7,577				7,577
Ending Balance (in shares) at Jun. 30, 2014			78,069
Ending Balance at Jun. 30, 2014		1,397,821		77,111	(945)	1,024,869	273,380		23,406
Beginning Balance (in shares) at Dec. 31, 2014			78,178
Beginning Balance at Dec. 31, 2014		1,481,679		77,211	(53)	1,034,048	349,556		20,917
Comprehensive income (loss)
Net income (loss)		87,906					87,906	[1]
Other comprehensive income (loss)		(1,789)							(1,789)	[1]
Total comprehensive income (loss)	[1]	86,117
Cash dividends declared:
Cash dividends declared ($0.01 per common share)		(1,590)					(1,590)
Common stock issued for: [Abstract]
Nonvested (restricted) stock grants, shares			250
Nonvested (restricted) stock grants		0		0	0	0
Exercise of stock options, shares			451
Exercise of stock options		10,857		281	5,903	4,673
Restricted stock activity, shares			7
Restricted stock activity		0		555	0	(555)
Deferred compensation plan, shares			1
Deferred compensation plan		226			29	197
Excess tax benefit from share-based compensation plans		3,956				3,956
Stock repurchased in connection with share-based compensation plans, shares			(170)
Stock repurchased in connection with share-based compensation plans		(5,908)			(5,908)
Share-based compensation expense		9,459				9,459
Ending Balance (in shares) at Jun. 30, 2015			78,717
Ending Balance at Jun. 30, 2015		$ 1,584,796		$ 78,047	$ (29)	$ 1,051,778	$ 435,872		$ 19,128
[1]	Net of taxes and reclassification adjustments.

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended			12 Months Ended
	Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2015	Jun. 30, 2014		Dec. 31, 2014
Operating Activities
Net income (loss)	$ 46,422		$ 40,824		$ 87,906	$ 75,329
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for loan and covered loan losses	2,116		327		7,762	4,034
Provision for unfunded commitments	507	[1]	(339)	[1]	883	157	[1]
Depreciation of premises, furniture, and equipment					4,280	4,266
Net amortization of premium on securities					8,478	7,088
Net (gains) losses on sale of securities	1		(196)		(533)	(527)
Valuation adjustment on other real estate owned					1,451	3,715
Net (gains) losses on sale of other real estate owned					354	379
Net amortization of discount on covered assets					260	382
Bank owned life insurance income					(719)	(635)
Net (decrease) increase in deferred loan fees					(1,879)	(1,525)
Share-based compensation expense					9,459	7,577
Excess tax benefit from exercise of stock options and vesting of restricted shares					(4,439)	(3,141)
Provision for deferred income tax expense	(1,445)		(92)		2,249	1,067
Amortization of other intangibles					1,299	1,511
Originations and purchases of loans held-for-sale					(340,556)	(212,029)
Proceeds from sales of loans held-for-sale					407,843	161,800
Net (gains) losses from sales of loans held-for-sale					(6,690)	(3,363)
Net (increase) decrease in derivative assets and liabilities					(6,451)	(12,078)
Net (increase) decrease in accrued interest receivable					(2,911)	436
Net (decrease) increase in accrued interest payable					595	(44)
Net (increase) decrease in other assets					41,295	22,518
Net (decrease) increase in other liabilities					(4,997)	(14,379)
Net cash provided by (used in) operating activities					204,939	42,538
Available-for-sale securities:
Proceeds from maturities, prepayments, and calls					104,028	122,473
Proceeds from sales	1,415		26,172		30,346	73,649
Purchases					(198,038)	(111,099)
Held-to-maturity securities:
Proceeds from maturities, repayments, and calls					75,276	51,801
Purchases					(148,221)	(198,727)
Gain on sale of branch					(4,092)	0
Net redemption (purchase) of FHLB stock					2,812	1,339
Net decrease (increase) in loans					(656,325)	(495,273)
Net decrease in covered assets					4,269	30,606
Proceeds from sale of other real estate owned					4,675	6,431
Net purchases of premises, furniture, and equipment					(2,809)	(4,650)
Net cash (used in) provided by investing activities					(788,079)	(523,450)
Financing Activities
Net (decrease) increase in deposit accounts, including deposits held-for-sale					176,752	222,560
Increase (decrease) in short-term and secured borrowings, excluding FHLB advances					153,310	(4,081)
Net increase (decrease) in FHLB advances					199,000	230,000
Stock repurchased in connection with benefit plans					(5,908)	(5,251)
Cash dividends paid					(1,574)	(1,560)
Proceeds from exercise of stock options and issuance of common stock under benefit plans					11,083	3,438
Excess tax benefit from exercise of stock options and vesting of restricted shares					4,439	3,141
Net cash (used in) provided by financing activities					537,102	448,247
Net (decrease) increase in cash and cash equivalents					(46,038)	(32,665)
Cash and cash equivalents at beginning of year					424,552	440,062		$ 440,062
Cash and cash equivalents at end of period	$ 378,514		$ 407,397		378,514	407,397		$ 424,552
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest					32,640	33,050
Cash paid for income taxes					51,876	43,100
Non-cash transfers of loans to other real estate					4,148	1,800
Non-cash transfers of loans to loans held-for-sale					$ 80,926	$ 70,538
[1]	Unfunded commitments include commitments to extend credit, standby letters of credit and commercial letters of credit. Unfunded commitments related to covered assets are excluded as they are covered under a loss sharing agreement with the FDIC.

RECENT ACCOUNTING PRONOUNCEMENT

RECENT ACCOUNTING PRONOUNCEMENTS	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
RECENT ACCOUNTING PRONOUNCEMENTS	RECENT ACCOUNTING PRONOUNCEMENTS Recently Adopted Accounting Pronouncements Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure - On January 1, 2015, we adopted new accounting guidance issued by the Financial Accounting Standards Board ("FASB") that requires a creditor to derecognize a mortgage loan upon foreclosure and recognize a separate other receivable if the following conditions are met: (1) the loan has a government guarantee that is not separable from the loan before foreclosure, (2) at the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under that claim, and (3) at the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed. Upon foreclosure, the separate other receivable is measured based on the amount of the loan balance expected to be recovered from the guarantor. The adoption of this guidance did not impact our financial position or consolidated results of operations. Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans - On January 1, 2015, we adopted new accounting guidance issued by the FASB that clarifies when an entity is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan such that the loan receivable should be derecognized and the real estate property recognized. The guidance indicates that an in substance repossession or foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (2) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or similar legal agreement. Additionally, the guidance requires disclosure of (1) the amount of foreclosed residential real estate property held by the Company and (2) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure. The adoption of this guidance did not impact our financial position or consolidated results of operations. Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures - On January 1, 2015, we adopted new accounting guidance issued by the FASB that amends the accounting for repurchase-to-maturity transactions and repurchase financings, except for the disclosures related to transactions accounted for as secured borrowings, which became effective for the Company’s financial statements that include periods beginning on April 1, 2015. Under the new guidance, repurchase-to-maturity transactions are accounted for as secured borrowings. Additionally, the initial transfer and related repurchase agreement in a repurchase financing must be considered separately, rather than as a linked transaction. In addition, new disclosures are required for (1) repurchase agreements, securities lending transactions, and repurchase-to-maturity transactions that are accounted for as secured borrowings, and (2) transfers accounted for as sales when the transferor also retains substantially all of the exposure to the economic return on the transferred financial assets throughout the term of the transaction. The adoption of this guidance did not impact our financial position or consolidated results of operations. Accounting for Fees Paid in a Cloud Computing Arrangement - In April 2015, the Company adopted new accounting guidance that clarifies how a customer in a cloud computing arrangement (such as the Company) should determine whether the arrangement includes a software license. Under the new guidance, if a cloud computing arrangement is deemed to include a software license for internal use software, the software license would be accounted for in the same manner as other licenses of intangible assets. If a cloud computing arrangement is not deemed to include a software license, the arrangement would be accounted for as a service contract. Previously, the Company was required to analogize to lease accounting guidance when determining the asset acquired in a software licensing arrangement. As permitted under the guidance, the Company has elected to apply the guidance prospectively to all new or materially modified arrangements entered into on or after the effective date. The adoption of this guidance did not impact our financial position or consolidated results of operations. Accounting Pronouncements Pending Adoption Revenue from Contracts with Customers - In May 2014, the FASB issued a comprehensive new revenue recognition standard that will replace most of the existing revenue recognition guidance in U.S. GAAP. All arrangements involving the transfer of goods or services to customers are within the scope of the guidance, except for certain contracts subject to other U.S. GAAP guidance, including lease contracts and rights and obligations related to financial instruments. The standard’s core principle is that an entity should recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance also includes new disclosure requirements related to the nature, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The guidance was originally effective for financial statements beginning January 1, 2017. However, in July 2015, the FASB voted to approve deferring the effective date by one year. Early adoption is permitted, but not before the original effective date. The guidance will be effective for the Company’s financial statements beginning January 1, 2018. The Company may choose to apply the new standard either retrospectively or through a cumulative effect adjustment as of January 1, 2018. The Company is in the process of determining the effect of the new guidance on our financial position and consolidated results of operations, as well as which transition method to use. Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period - In June 2014, the FASB issued guidance that clarifies the accounting for a performance target that affects vesting of a share-based payment award and that could be achieved after the requisite service period. The guidance indicates that such a performance target would not be reflected in the estimation of the award’s grant date fair value. Rather, compensation cost for such an award would be recognized over the requisite service period, if it is probable that the performance target will be achieved. The total amount of compensation cost recognized during and after the requisite service period would reflect the number of awards that are expected to vest and would be adjusted to reflect those awards that ultimately vest. The guidance will be effective for the Company’s financial statements that include periods beginning January 1, 2016 and applied prospectively to awards that are granted or modified after the effective date. The adoption of this guidance is not expected to have a material impact on our financial position or consolidated results of operations. Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern - In August 2014, the FASB issued guidance that requires management to evaluate whether there are conditions and events that raise substantial doubt about an entity’s ability to continue as a going concern. The guidance requires new disclosures to the extent management concludes there is substantial doubt about an entity’s ability to continue as a going concern. The guidance will be effective for the Company’s annual financial statements dated December 31, 2016, as well as interim periods thereafter. The adoption of this guidance is not expected to have a material impact on our financial position or consolidated results of operations. Amendments to the Consolidation Analysis - In February 2015, the FASB issued guidance that changes certain aspects of the variable interest and voting interest consolidation models. The amendments modify existing guidance on (1) the evaluation of whether limited partnerships and similar legal entities are variable interest entities (“VIEs”) or voting interest entities, (2) when fee arrangements represent variable interests in a VIE, and (3) the primary beneficiary determination for VIEs. Additionally, the guidance eliminates the presumption that a general partner controls a limited partnership under the voting interest model and exempts reporting entities from consolidating money market funds that are required to comply with or operate in accordance with requirements that are similar to those in Rule 2a-7 of the Investment Company Act of 1940. The guidance will be effective for the Company’s financial statements that include periods beginning on January 1, 2016. The Company may choose to apply the guidance either retrospectively or through a cumulative effect adjustment as of January 1, 2016. The Company is in the process of determining the effect of the new guidance on our financial position and consolidated results of operations, as well as which transition method to use. Debt Issuance Costs - In April 2015, the FASB issued guidance to clarify the presentation of debt issuance costs within the balance sheet. This guidance requires that an entity present debt issuance costs related to a recognized debt liability on the balance sheet as a direct deduction from the carrying amount of that debt liability, not as a separate asset. The standard does not affect the current guidance for the recognition and measurement for debt issuance costs. This guidance will be effective for the Company's financial statements that include periods beginning January 1, 2016, and must be applied retrospectively. The adoption of this guidance is not expected to have a material impact on our financial position or consolidated results of operations.

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The accompanying unaudited consolidated interim financial statements of PrivateBancorp, Inc. ("PrivateBancorp" or the "Company"), a Delaware corporation, have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission for quarterly reports on Form 10-Q and do not include certain information and footnote disclosures required by U.S. generally accepted accounting principles ("U.S. GAAP") for complete annual financial statements. Accordingly, these financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for our fiscal year ended December 31, 2014 . The accompanying unaudited consolidated interim financial statements have been prepared in accordance with U.S. GAAP, and (where applicable) in accordance with accounting and reporting guidelines prescribed by bank regulation and authority, and reflect all adjustments that are, in the opinion of management, necessary for the fair presentation of the financial position and results of operations for the periods presented. All such adjustments are of a normal recurring nature. The results of operations for interim periods are not necessarily indicative of the results that may be expected for the full year or any other period. The accompanying consolidated financial statements include the accounts and results of operations of the Company and its subsidiary, The PrivateBank and Trust Company (the "Bank"), after elimination of all significant intercompany accounts and transactions. Certain reclassifications have been made to prior period amounts to conform to the current period presentation. The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from these estimates. In preparing the consolidated financial statements, we have considered the impact of events occurring subsequent to June 30, 2015 , for potential recognition or disclosure.

SECURITIES

SECURITIES	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
SECURITIES	SECURITIES Securities Portfolio (Amounts in thousands) June 30, 2015 December 31, 2014 Amortized Cost Gross Unrealized Fair Value Amortized Cost Gross Unrealized Fair Value Gains Losses Gains Losses Securities Available-for-Sale U.S. Treasury $ 268,306 $ 916 $ (327 ) $ 268,895 $ 269,697 $ 120 $ (1,552 ) $ 268,265 U.S. Agency 46,733 — (310 ) 46,423 46,959 — (701 ) 46,258 Collateralized mortgage obligations 113,215 3,913 (31 ) 117,097 132,633 4,334 (34 ) 136,933 Residential mortgage-backed securities 835,105 20,797 (2,539 ) 853,363 822,746 25,058 (1,726 ) 846,078 State and municipal securities 408,815 5,924 (2,284 ) 412,455 340,810 7,222 (722 ) 347,310 Foreign sovereign debt — — — — 500 — — 500 Total $ 1,672,174 $ 31,550 $ (5,491 ) $ 1,698,233 $ 1,613,345 $ 36,734 $ (4,735 ) $ 1,645,344 Securities Held-to-Maturity Collateralized mortgage obligations $ 56,341 $ — $ (1,851 ) $ 54,490 $ 59,960 $ — $ (2,017 ) $ 57,943 Residential mortgage-backed securities 928,158 6,408 (4,163 ) 930,403 885,235 9,410 (2,483 ) 892,162 Commercial mortgage-backed securities 209,010 802 (1,855 ) 207,957 183,021 592 (2,176 ) 181,437 State and municipal securities 1,069 5 — 1,074 1,069 4 — 1,073 Other securities 4,542 — (6 ) 4,536 — — — — Total $ 1,199,120 $ 7,215 $ (7,875 ) $ 1,198,460 $ 1,129,285 $ 10,006 $ (6,676 ) $ 1,132,615 The carrying value of securities pledged to secure public deposits, FHLB advances, trust deposits, Federal Reserve Bank ("FRB") discount window borrowing availability, securities sold under the agreement to repurchase ("repurchase agreements"), derivative transactions, standby letters of credit with counterparty banks and for other purposes as permitted or required by law totaled $541.7 million and $353.1 million at June 30, 2015 and December 31, 2014 , respectively. Of total pledged securities, securities pledged to creditors under agreements pursuant to which the collateral may be sold or re-pledged by the secured parties totaled $246.7 million and $86.5 million at June 30, 2015 and December 31, 2014 , respectively. Excluding securities issued or backed by the U.S. Government, its agencies and U.S. Government-sponsored enterprises, there were no investments in securities from one issuer that exceeded 10% of consolidated equity at June 30, 2015 or December 31, 2014 . The following table presents the fair values of securities with unrealized losses as of June 30, 2015 , and December 31, 2014 . The securities presented are grouped according to the time periods during which the securities have been in a continuous unrealized loss position. Securities in Unrealized Loss Position (Amounts in thousands) Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses As of June 30, 2015 Securities Available-for-Sale U.S. Treasury $ 25,088 $ (131 ) $ 52,133 $ (196 ) $ 77,221 $ (327 ) U.S. Agency 46,422 (310 ) — — 46,422 (310 ) Collateralized mortgage obligations 5,351 (31 ) — — 5,351 (31 ) Residential mortgage-backed securities 74,797 (473 ) 82,475 (2,066 ) 157,272 (2,539 ) State and municipal securities 175,983 (2,223 ) 3,808 (61 ) 179,791 (2,284 ) Total $ 327,641 $ (3,168 ) $ 138,416 $ (2,323 ) $ 466,057 $ (5,491 ) Securities Held-to-Maturity Collateralized mortgage obligations $ — $ — $ 54,490 $ (1,851 ) $ 54,490 $ (1,851 ) Residential mortgage-backed securities 296,725 (2,713 ) 61,379 (1,450 ) 358,104 (4,163 ) Commercial mortgage-backed securities 85,963 (1,171 ) 48,926 (684 ) 134,889 (1,855 ) Other securities 4,536 (6 ) — — 4,536 (6 ) Total $ 387,224 $ (3,890 ) $ 164,795 $ (3,985 ) $ 552,019 $ (7,875 ) As of December 31, 2014 Securities Available-for-Sale U.S. Treasury $ 119,233 $ (159 ) $ 123,117 $ (1,393 ) $ 242,350 $ (1,552 ) U.S. Agency — — 46,258 (701 ) 46,258 (701 ) Collateralized mortgage obligations 4,565 (34 ) — — 4,565 (34 ) Residential mortgage-backed securities — — 89,085 (1,726 ) 89,085 (1,726 ) State and municipal securities 53,092 (249 ) 32,152 (473 ) 85,244 (722 ) Total $ 176,890 $ (442 ) $ 290,612 $ (4,293 ) $ 467,502 $ (4,735 ) Securities Held-to-Maturity Collateralized mortgage obligations $ — $ — $ 57,943 $ (2,017 ) $ 57,943 $ (2,017 ) Residential mortgage-backed securities 45,867 (38 ) 162,564 (2,445 ) 208,431 (2,483 ) Commercial mortgage-backed securities 10,021 (28 ) 105,709 (2,148 ) 115,730 (2,176 ) Total $ 55,888 $ (66 ) $ 326,216 $ (6,610 ) $ 382,104 $ (6,676 ) There were $303.2 million of securities with $6.3 million in an unrealized loss position for greater than 12 months at June 30, 2015 . At December 31, 2014 , there were $616.8 million of securities with $10.9 million in an unrealized loss position for greater than 12 months. The Company does not consider these unrealized losses to be credit-related. These unrealized losses relate to changes in interest rates and market spreads. We do not intend to sell the securities nor do we believe it is more likely than not that we will be required to sell the investments before recovery of their amortized cost bases, which may be at maturity. Accordingly, no other-than-temporary impairments were recorded on these securities during the six months ended June 30, 2015 or during the year ended December 31, 2014 . The following table presents the remaining contractual maturity of securities as of June 30, 2015 , by amortized cost and fair value. Remaining Contractual Maturity of Securities (Amounts in thousands) June 30, 2015 Available-For-Sale Securities Held-To-Maturity Securities Amortized Cost Fair Value Amortized Cost Fair Value U.S. Treasury, U.S. Agency, state and municipal and other securities: One year or less $ 8,200 $ 8,314 $ 816 $ 817 One year to five years 480,331 484,045 253 257 Five years to ten years 220,417 220,633 4,542 4,536 After ten years 14,906 14,781 — — All other securities: Collateralized mortgage obligations 113,215 117,097 56,341 54,490 Residential mortgage-backed securities 835,105 853,363 928,158 930,403 Commercial mortgage-backed securities — — 209,010 207,957 Total $ 1,672,174 $ 1,698,233 $ 1,199,120 $ 1,198,460 The following table presents gains (losses) on securities for the three months and six months ended June 30, 2015 and 2014 . Securities Gains (Losses) (Amounts in thousands) Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Proceeds from sales $ 1,415 $ 26,172 $ 30,346 $ 73,649 Gross realized gains $ 19 $ 213 $ 557 $ 610 Gross realized losses (20 ) (17 ) (24 ) (83 ) Net realized (losses) gains $ (1 ) $ 196 $ 533 $ 527 Income tax provision on net realized gains $ — $ 77 $ 210 $ 208 Refer to Note 10 for additional details of the securities available-for-sale portfolio and the related impact of unrealized gains (losses) on other comprehensive income.

LOANS AND CREDIT QUALITY

LOANS AND CREDIT QUALITY	6 Months Ended
	Jun. 30, 2015
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LOANS	LOANS AND CREDIT QUALITY The following loan portfolio and credit quality disclosures exclude covered loans. Covered loans represent loans acquired through a Federal Deposit Insurance Corporation ("FDIC") assisted transaction that are subject to a loss share agreement and are presented separately in the Consolidated Statements of Financial Condition. Refer to the "Covered Assets" section in this footnote for further information regarding covered loans. Loan Portfolio (Amounts in thousands) June 30, December 31, Commercial and industrial $ 6,397,736 $ 5,996,070 Commercial - owner-occupied CRE 2,048,489 1,892,564 Total commercial 8,446,225 7,888,634 Commercial real estate 2,432,608 2,323,616 Commercial real estate - multi-family 561,924 593,103 Total commercial real estate 2,994,532 2,916,719 Construction 371,096 381,102 Residential real estate 415,826 361,565 Home equity 137,461 142,177 Personal 178,141 202,022 Total loans $ 12,543,281 $ 11,892,219 Net deferred loan fees and unamortized discount and premium on loans, included as a reduction in total loans $ 45,138 $ 47,017 Overdrawn demand deposits included in total loans $ 1,149 $ 1,963 We primarily lend to businesses and consumers in the market areas in which we have physical locations. We seek to diversify our loan portfolio by loan type, industry type for commercial and industrial loans, product type for commercial real estate and construction loans, and borrower. Loans Held-For-Sale (Amounts in thousands) June 30, December 31, Mortgage loans held-for-sale (1) $ 24,414 $ 42,215 Other loans held-for-sale (2) 29,849 72,946 Total loans held-for-sale $ 54,263 $ 115,161 (1) Comprised of residential mortgage loan originations intended to be sold in the secondary market. The Company accounts for these loans under the fair value option. Refer to Note 16 for additional information regarding mortgage loans held-for-sale. (2) Amounts at June 30, 2015 , represent commercial and commercial real estate loans carried at the lower of aggregate cost or fair value. Generally, the Company intends to sell these loans within 30-60 days from the date the intent to sell was established. Amounts at December 31, 2014 , consist of $36.6 million of commercial, commercial real estate and construction loans carried at the lower of aggregate cost or fair value and $36.3 million of commercial, commercial real estate, construction, home equity and personal loans held-for-sale in connection with the sale of the Company's banking office located in Norcross, Georgia, which closed in January 2015. Carrying Value of Loans Pledged (Amounts in thousands) June 30, December 31, Loans pledged to secure outstanding borrowings or availability: FRB discount window borrowings (1) $ 431,488 $ 478,692 FHLB advances (2) 1,845,935 1,576,168 Total $ 2,277,423 $ 2,054,860 (1) No borrowings were outstanding at June 30, 2015 , or December 31, 2014 . (2) Refer to Notes 7 and 8 for additional information regarding FHLB advances. Loan Portfolio Aging (Amounts in thousands) Delinquent Current 30 – 59 Days Past Due 60 – 89 Days Past Due 90 Days Past Due and Accruing Total Accruing Loans Nonaccrual Total Loans As of June 30, 2015 Commercial $ 8,416,607 $ 1,561 $ 212 $ — $ 8,418,380 $ 27,845 $ 8,446,225 Commercial real estate 2,981,091 — — — 2,981,091 13,441 2,994,532 Construction 371,096 — — — 371,096 — 371,096 Residential real estate 411,251 — 459 — 411,710 4,116 415,826 Home equity 125,741 572 — — 126,313 11,148 137,461 Personal 178,098 18 1 — 178,117 24 178,141 Total loans $ 12,483,884 $ 2,151 $ 672 $ — $ 12,486,707 $ 56,574 $ 12,543,281 As of December 31, 2014 Commercial $ 7,855,833 $ 762 $ 992 $ — $ 7,857,587 $ 31,047 $ 7,888,634 Commercial real estate 2,891,301 5,408 261 — 2,896,970 19,749 2,916,719 Construction 380,939 163 — — 381,102 — 381,102 Residential real estate 354,717 943 631 — 356,291 5,274 361,565 Home equity 128,500 397 2,236 — 131,133 11,044 142,177 Personal 201,569 23 — — 201,592 430 202,022 Total loans $ 11,812,859 $ 7,696 $ 4,120 $ — $ 11,824,675 $ 67,544 $ 11,892,219 Impaired Loans Impaired loans consist of nonaccrual loans (which include nonaccrual troubled debt restructurings ("TDRs")) and loans classified as accruing TDRs. A loan is considered impaired when, based on current information and events, either (i) management believes that it is probable that we will be unable to collect all amounts due (both principal and interest) according to the original contractual terms of the loan agreement, or (ii) it has been classified as a TDR. The following two tables present our recorded investment in impaired loans outstanding by product segment, including our recorded investment in impaired loans, which represents the principal amount outstanding, net of unearned income, deferred loan fees and costs, and any direct principal charge-offs. Impaired Loans (Amounts in thousands) Unpaid Contractual Principal Balance Recorded Investment With No Specific Reserve Recorded Investment With Specific Reserve Total Recorded Investment Specific Reserve As of June 30, 2015 Commercial $ 74,657 $ 49,519 $ 13,258 $ 62,777 $ 2,889 Commercial real estate 19,925 3,824 9,617 13,441 2,102 Residential real estate 4,484 — 4,116 4,116 606 Home equity 13,566 3,985 8,917 12,902 1,865 Personal 24 — 24 24 6 Total impaired loans $ 112,656 $ 57,328 $ 35,932 $ 93,260 $ 7,468 As of December 31, 2014 Commercial $ 60,174 $ 25,739 $ 26,432 $ 52,171 $ 11,487 Commercial real estate 26,738 9,755 10,193 19,948 2,441 Residential real estate 5,849 349 4,925 5,274 735 Home equity 12,904 3,627 8,839 12,466 1,855 Personal 430 — 430 430 109 Total impaired loans $ 106,095 $ 39,470 $ 50,819 $ 90,289 $ 16,627 Average Recorded Investment and Interest Income Recognized on Impaired Loans (1) (Amounts in thousands) Three Months Ended June 30, 2015 2014 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Commercial $ 59,380 $ 316 $ 55,534 $ 419 Commercial real estate 14,823 10 36,960 20 Residential real estate 4,454 — 9,481 — Home equity 12,714 24 12,614 21 Personal 248 — 599 — Total $ 91,619 $ 350 $ 115,188 $ 460 (1) Represents amounts while classified as impaired for the periods presented. Average Recorded Investment and Interest Income Recognized on Impaired Loans (1) (Continued) (Amounts in thousands) Six Months Ended June 30, 2015 2014 Average Interest Average Interest Commercial $ 55,791 $ 500 $ 48,935 $ 801 Commercial real estate 16,359 13 41,617 44 Residential real estate 4,676 — 9,700 — Home equity 13,094 46 13,018 45 Personal 300 — 632 — Total $ 90,220 $ 559 $ 113,902 $ 890 (1) Represents amounts while classified as impaired for the periods presented. Credit Quality Indicators We attempt to mitigate risk through loan structure, collateral, monitoring, and other credit risk management controls. We have adopted an internal risk rating policy in which each loan is rated for credit quality with a numerical rating of 1 through 8 . Loans rated 5 and better ( 1 - 5 ratings, inclusive) are considered "pass" rated credits and we believe exhibit acceptable financial performance, cash flow, and leverage. Credits rated 6 are performing in accordance with contractual terms but are considered "special mention" as these credits demonstrate potential weakness that, if left unresolved, may result in deterioration in our credit position and/or the repayment prospects for the credit. Borrowers rated special mention may exhibit adverse operating trends, high leverage, tight liquidity or other credit concerns. Loans rated 7 may be classified as either accruing ("potential problem") or nonaccrual ("nonperforming"). Potential problem loans, like special mention, are loans that are performing in accordance with contractual terms, but for which management has some level of concern (greater than that of special mention loans) about the ability of the borrowers to meet existing repayment terms in future periods. Potential problem loans continue to accrue interest but the ultimate collection of these loans in full is a risk due to the same conditions that characterize a 6 -rated credit. These credits may also have somewhat increased risk profiles as a result of the current net worth and/or paying capacity of the obligor or guarantors or a declining value of the collateral pledged. These loans generally have a well-defined weakness that may jeopardize collection of the debt and are characterized by the distinct possibility that we may sustain some loss if the deficiencies are not resolved. Although these loans are generally identified as potential problem loans and require additional attention by management, they may never become nonperforming. Nonperforming loans include nonaccrual loans risk rated 7 or 8 and have all the weaknesses inherent in a 7 -rated potential problem loan with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently-existing facts, conditions and values, highly questionable and improbable. Special mention, potential problem and nonperforming loans are reviewed at a minimum on a quarterly basis, while all other rated credits over a certain dollar threshold, depending on loan type, are reviewed annually or more frequently as the circumstances warrant. Credit Quality Indicators (Dollars in thousands) Special Mention % of Portfolio Loan Type Potential Problem Loans % of Portfolio Loan Type Non- Performing Loans % of Portfolio Loan Type Total Loans As of June 30, 2015 Commercial $ 124,689 1.5 $ 125,948 1.5 $ 27,845 0.3 $ 8,446,225 Commercial real estate 83 * 2,614 0.1 13,441 0.4 2,994,532 Construction — — — — — — 371,096 Residential real estate 6,148 1.5 6,533 1.6 4,116 1.0 415,826 Home equity 806 0.6 2,618 1.9 11,148 8.1 137,461 Personal 715 0.4 44 * 24 * 178,141 Total $ 132,441 1.1 $ 137,757 1.1 $ 56,574 0.5 $ 12,543,281 As of December 31, 2014 Commercial $ 93,130 1.2 $ 78,562 1.0 $ 31,047 0.4 $ 7,888,634 Commercial real estate 3,552 0.1 746 * 19,749 0.7 2,916,719 Construction — — — — — — 381,102 Residential real estate 2,964 0.8 5,981 1.7 5,274 1.5 361,565 Home equity 1,170 0.8 2,108 1.5 11,044 7.8 142,177 Personal 173 0.1 45 * 430 0.2 202,022 Total $ 100,989 0.8 $ 87,442 0.7 $ 67,544 0.6 $ 11,892,219 * Less than 0.1% Troubled Debt Restructured Loans Troubled Debt Restructured Loans Outstanding (Amounts in thousands) June 30, 2015 December 31, 2014 Accruing Nonaccrual (1) Accruing Nonaccrual (1) Commercial $ 34,932 $ 7,944 $ 21,124 $ 20,113 Commercial real estate — 10,638 199 8,005 Residential real estate — 1,325 — 1,881 Home equity 1,754 5,832 1,422 5,886 Personal — — — 413 Total $ 36,686 $ 25,739 $ 22,745 $ 36,298 (1) Included in nonperforming loans. At June 30, 2015 and December 31, 2014 , credit commitments to lend additional funds to debtors whose loan terms have been modified in a TDR (both accruing and nonaccruing) totaled $14.0 million and $8.5 million , respectively. Additions to Accruing Troubled Debt Restructurings During the Period (Dollars in thousands) Three Months Ended June 30, 2015 2014 Number of Borrowers Recorded Investment (1) Number of Borrowers Recorded Investment (1) Pre- Modification Post- Modification Pre- Modification Post- Modification Commercial Extension of maturity date (2) 4 $ 13,415 $ 13,134 1 $ 3,550 $ 3,550 Other concession (3) — — — 1 2,638 2,638 Total commercial 4 13,415 13,134 2 6,188 6,188 Home equity Extension of maturity date (2) 1 346 346 — — — Total accruing 5 $ 13,761 $ 13,480 2 $ 6,188 $ 6,188 Change in recorded investment due to principal paydown at time of modification $ 281 $ — Six Months Ended June 30, 2015 2014 Recorded Investment (1) Recorded Investment (1) Number of Borrowers Pre- Modification Post- Modification Number of Borrowers Pre- Modification Post- Modification Commercial Extension of maturity date (2) 5 $ 15,809 $ 15,528 2 $ 3,750 $ 3,750 Other concession (3) — — — 2 15,579 15,579 Total commercial 5 15,809 15,528 4 19,329 19,329 Commercial real estate Other concession (3) — — — 1 426 426 Home equity Extension of maturity date (2) 1 346 346 — — — Total accruing 6 $ 16,155 $ 15,874 5 $ 19,755 $ 19,755 Change in recorded investment due to principal paydown at time of modification $ 281 $ — (1) Represents amounts as of the date immediately prior to and immediately after the modification is effective. (2) Extension of maturity date also includes loans renewed at an existing rate of interest that is considered a below market rate for that particular loan’s risk profile. (3) Other concessions primarily include interest rate reductions, loan increases or deferrals of principal. Additions to Nonaccrual Troubled Debt Restructurings During the Period (Dollars in thousands) Three Months Ended June 30, 2015 2014 Number of Borrowers Recorded Investment (1) Number of Borrowers Recorded Investment (1) Pre- Modification Post- Modification Pre- Modification Post- Modification Commercial Extension of maturity date (2) 4 $ 2,583 $ 2,583 — $ — $ — Other concession (3) 1 2,107 2,107 2 97 97 Total commercial 5 4,690 4,690 2 97 97 Commercial real estate Other concession (3) — — — 1 1,120 1,120 Residential real estate Other concession (3) — — — 1 70 70 Home equity Extension of maturity date (2) 3 170 165 — — — Other concession (3) — — — 2 865 865 Total home equity 3 170 165 2 865 865 Total nonaccrual 8 $ 4,860 $ 4,855 6 $ 2,152 $ 2,152 Change in recorded investment due to principal paydown at time of modification $ 5 $ — Six Months Ended June 30, 2015 2014 Recorded Investment (1) Recorded Investment (1) Number of Pre- Post- Number of Pre- Post- Commercial Extension of maturity date (2) 4 $ 2,583 $ 2,583 — $ — $ — Other concession (3) 2 2,780 2,773 4 553 503 Total commercial 6 5,363 5,356 4 553 503 Commercial real estate Extension of maturity date (2) 2 1,747 1,660 — — — Other concession (3) 1 3,773 3,773 1 1,120 1,120 Total commercial real estate 3 5,520 5,433 1 1,120 1,120 Residential real estate Other concession (3) — — — 3 565 565 Home equity Extension of maturity date (2) 3 170 165 1 114 114 Other concession (3) 2 77 77 3 1,115 1,115 Total home equity 5 247 242 4 1,229 1,229 Total nonaccrual 14 $ 11,130 $ 11,031 12 $ 3,467 $ 3,417 Net decrease in recorded investment at time of modification $ 99 $ 50 (1) Represents amounts as of the date immediately prior to and immediately after the modification is effective. (2) Extension of maturity date also includes loans renewed at an existing rate of interest that is considered a below market rate for that particular loan’s risk profile. (3) Other concessions primarily include interest rate reductions, loan increases or deferrals of principal. At the time an accruing loan becomes modified and meets the definition of a TDR, it is considered impaired and no longer included as part of the general loan loss reserve population. However, our general loan loss reserve methodology does consider the amount and product type of the TDRs removed as a proxy for potentially heightened risk in the general portfolio when establishing final reserve requirements. As impaired loans, TDRs (both accruing and nonaccruing) are evaluated for impairment at the end of each quarter with a specific valuation reserve created, or adjusted (either individually or as part of a pool), if necessary, as a component of the allowance for loan losses. Refer to the "Impaired Loan" and "Allowance for Loan Loss" sections of Note 1 , "Summary of Significant Accounting Policies," in the Notes to Consolidated Financial Statements of our 2014 Annual Report on Form 10-K regarding our policy for assessing potential impairment on such loans. Our allowance for loan losses included $3.8 million and $10.6 million in specific reserves for nonaccrual TDRs at June 30, 2015 , and December 31, 2014 , respectively. For accruing TDRs, there were no specific reserves at June 30, 2015 , and December 31, 2014 , respectively, as the present value of cash flows for the restructured loan were greater than the recorded investment in the loan. During the six months ended June 30, 2014 , a single commercial real estate loan totaling $699,000 became nonperforming within 12 months of being modified as an accruing TDR. There were no such transactions for the six months ended June 30, 2015 . A loan typically becomes nonperforming and placed on nonaccrual status when the principal or interest payments are 90 days past due based on contractual terms or when an individual analysis of a borrower’s creditworthiness indicates a loan should be placed on nonaccrual status earlier than the 90-day past due date. Other Real Estate Owned The following table presents the composition of property acquired as a result of borrower defaults on loans secured by real property. OREO Composition (Amounts in thousands) June 30, 2015 December 31, 2014 Single-family homes $ 7,494 $ 7,902 Land parcels 3,807 4,237 Multi-family 1,026 488 Office/industrial 1,734 3,832 Retail 1,023 957 Total OREO properties $ 15,084 $ 17,416 The recorded investment in consumer mortgage loans secured by residential real estate properties for which foreclosure proceedings are in process totaled $5.3 million at June 30, 2015 , and $5.5 million at December 31, 2014 . Covered Assets Covered assets represent acquired residential mortgage loans and foreclosed real estate covered under a loss sharing agreement with the FDIC and include an indemnification receivable representing the present value of the expected reimbursement from the FDIC related to expected losses on the acquired loans and foreclosed real estate under such agreement. The loss share agreement will expire on September 30, 2019. The carrying amount of covered assets is presented in the following table. Covered Assets (Amounts in thousands) June 30, 2015 December 31, 2014 Residential mortgage loans (1) $ 28,259 $ 32,182 Foreclosed real estate - single family homes 159 187 Estimated loss reimbursement by the FDIC 2,111 1,763 Total covered assets 30,529 34,132 Allowance for covered loan losses (6,332 ) (5,191 ) Net covered assets $ 24,197 $ 28,941 (1) Includes $264,000 and $420,000 of purchased credit-impaired loans as of June 30, 2015 , and December 31, 2014 , respectively. The recorded investment in residential mortgage loans secured by residential real estate properties for which foreclosure proceedings are in process totaled $531,000 and $856,000 at June 30, 2015 and December 31, 2014 , respectively.

ALLOWANCE FOR LOAN LOSSES AND R

ALLOWANCE FOR LOAN LOSSES AND RESERVE FOR UNFUNDED COMMITMENTS		6 Months Ended
		Jun. 30, 2015
Text Block [Abstract]
ALLOWANCE FOR LOAN LOSSES AND RESERVE FOR UNFUNDED COMMITMENTS	[1]	ALLOWANCE FOR LOAN LOSSES AND RESERVE FOR UNFUNDED COMMITMENTS The following allowance and credit quality disclosures exclude covered loans. Refer to Note 4 for a discussion regarding covered loans. Allowance for Loan Losses and Recorded Investment in Loans (Amounts in thousands) Three Months Ended June 30, 2015 Commercial Commercial Real Estate Construction Residential Real Estate Home Equity Personal Total Allowance for Loan Losses: Balance at beginning of period $ 108,873 $ 31,606 $ 4,026 $ 5,223 $ 4,588 $ 2,294 $ 156,610 Loans charged-off (2,921 ) (98 ) — (194 ) — (28 ) (3,241 ) Recoveries on loans previously charged-off 984 272 164 47 73 86 1,626 Net (charge-offs) recoveries (1,937 ) 174 164 (147 ) 73 58 (1,615 ) Provision (release) for loan losses 6,208 (3,570 ) (374 ) 181 (46 ) (343 ) 2,056 Balance at end of period $ 113,144 $ 28,210 $ 3,816 $ 5,257 $ 4,615 $ 2,009 $ 157,051 Ending balance for loans individually evaluated for impairment (1) $ 2,889 $ 2,102 $ — $ 606 $ 1,865 $ 6 $ 7,468 Ending balance for loans collectively evaluated for impairment $ 110,255 $ 26,108 $ 3,816 $ 4,651 $ 2,750 $ 2,003 $ 149,583 Recorded Investment in Loans: Ending balance, loans individually evaluated for impairment (1) $ 62,777 $ 13,441 $ — $ 4,116 $ 12,902 $ 24 $ 93,260 Ending balance, loans collectively evaluated for impairment 8,383,448 2,981,091 371,096 411,710 124,559 178,117 12,450,021 Total recorded investment in loans $ 8,446,225 $ 2,994,532 $ 371,096 $ 415,826 $ 137,461 $ 178,141 $ 12,543,281 (1) Refer to Note 4 for additional information regarding impaired loans. Allowance for Loan Losses and Recorded Investment in Loans (Continued) (Amounts in thousands) Three Months Ended June 30, 2014 Commercial Commercial Real Estate Construction Residential Real Estate Home Equity Personal Total Allowance for Loan Losses: Balance at beginning of period $ 90,080 $ 37,575 $ 3,547 $ 6,978 $ 5,500 $ 3,088 $ 146,768 Loans charged-off (2,142 ) (2,082 ) — (180 ) (268 ) (13 ) (4,685 ) Recoveries on loans previously charged-off 813 1,360 9 135 60 20 2,397 Net (charge-offs) recoveries (1,329 ) (722 ) 9 (45 ) (208 ) 7 (2,288 ) Provision (release) for loan losses 7,575 (3,554 ) 65 (1,653 ) (277 ) (145 ) 2,011 Balance at end of period $ 96,326 $ 33,299 $ 3,621 $ 5,280 $ 5,015 $ 2,950 $ 146,491 Ending balance for loans individually evaluated for impairment (1) $ 11,113 $ 4,879 $ — $ 630 $ 1,715 $ 150 $ 18,487 Ending balance for loans collectively evaluated for impairment $ 85,213 $ 28,420 $ 3,621 $ 4,650 $ 3,300 $ 2,800 $ 128,004 Recorded Investment in Loans: Ending balance, loans individually evaluated for impairment (1) $ 64,851 $ 23,173 $ — $ 9,337 $ 11,630 $ 580 $ 109,571 Ending balance, loans collectively evaluated for impairment 7,506,435 2,495,954 360,313 327,992 132,451 204,226 11,027,371 Total recorded investment in loans $ 7,571,286 $ 2,519,127 $ 360,313 $ 337,329 $ 144,081 $ 204,806 $ 11,136,942 (1) Refer to Note 4 for additional information regarding impaired loans. Allowance for Loan Losses (Continued) (Amounts in thousands) Six Months Ended June 30, Commercial Commercial Real Estate Construction Residential Real Estate Home Equity Personal Total 2015 Balance at beginning of year $ 103,462 $ 31,838 $ 4,290 $ 5,316 $ 4,924 $ 2,668 $ 152,498 Loans charged-off (5,123 ) (985 ) — (231 ) (371 ) (38 ) (6,748 ) Recoveries on loans previously charged-off 1,495 870 183 104 143 959 3,754 Net (charge-offs) recoveries (3,628 ) (115 ) 183 (127 ) (228 ) 921 (2,994 ) Provision (release) for loan losses 13,310 (3,513 ) (657 ) 68 (81 ) (1,580 ) 7,547 Balance at end of period $ 113,144 $ 28,210 $ 3,816 $ 5,257 $ 4,615 $ 2,009 $ 157,051 2014 Balance at beginning of year $ 80,768 $ 42,362 $ 3,338 $ 7,555 $ 5,648 $ 3,438 $ 143,109 Loans charged-off (3,629 ) (4,664 ) — (415 ) (715 ) (143 ) (9,566 ) Recoveries on loans previously charged-off 4,475 2,048 16 435 88 426 7,488 Net recoveries (charge-offs) 846 (2,616 ) 16 20 (627 ) 283 (2,078 ) Provision (release) for loan losses 14,712 (6,447 ) 267 (2,295 ) (6 ) (771 ) 5,460 Balance at end of period $ 96,326 $ 33,299 $ 3,621 $ 5,280 $ 5,015 $ 2,950 $ 146,491 Reserve for Unfunded Commitments (1) (Amounts in thousands) Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Balance at beginning of period $ 12,650 $ 9,702 $ 12,274 $ 9,206 Provision (release) for unfunded commitments 507 (339 ) 883 157 Balance at end of period $ 13,157 $ 9,363 $ 13,157 $ 9,363 Unfunded commitments, excluding covered assets, at period end $ 6,135,242 $ 4,957,324 (1) Unfunded commitments include commitments to extend credit, standby letters of credit and commercial letters of credit. Unfunded commitments related to covered assets are excluded as they are covered under a loss sharing agreement with the FDIC. Refer to Note 15 for additional details of commitments to extend credit, standby letters of credit and commercial letters of credit.
[1]	Refer to Note 4 for additional information regarding impaired loans.

GOODWILL AND OTHER INTANGIBLE A

GOODWILL AND OTHER INTANGIBLE ASSETS	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS	GOODWILL AND OTHER INTANGIBLE ASSETS Carrying Amount of Goodwill by Operating Segment (Amounts in thousands) June 30, December 31, 2014 Banking $ 81,755 $ 81,755 Asset management 12,286 12,286 Total goodwill $ 94,041 $ 94,041 Goodwill is not amortized but, instead, is subject to impairment tests at least on an annual basis or more often if events or circumstances occur that would indicate it is more likely than not that the fair value of a reporting unit is below its carrying value. Our annual goodwill impairment test was performed as of October 31, 2014, and it was determined no impairment existed as of that date nor are we aware of any events or circumstances that would indicate goodwill is impaired at June 30, 2015 . There were no impairment charges for goodwill recorded in 2014. Our annual goodwill test will be completed during the fourth quarter 2015. We have other intangible assets capitalized on the Consolidated Statements of Financial Condition in the form of core deposit premiums and client relationships. These intangible assets are being amortized over their estimated useful lives, which range from 8 to 12 years . We review intangible assets for possible impairment whenever events or changes in circumstances indicate that carrying amounts may not be recoverable. During the second quarter 2015 , there were no events or circumstances that we believe indicate there may be impairment of intangible assets, and no impairment charges for other intangible assets were recorded for the six months ended June 30, 2015 . Other Intangible Assets (Dollars in thousands) Six Months Ended June 30, 2015 Year Ended December 31, 2014 Core deposit intangibles: Gross carrying amount $ 18,093 $ 18,093 Accumulated amortization 14,066 12,870 Net carrying amount $ 4,027 $ 5,223 Amortization during the period $ 1,196 $ 2,799 Weighted average remaining life (in years) 2 2 Client relationships: Gross carrying amount $ 2,002 $ 2,002 Accumulated amortization 1,443 1,340 Net carrying amount $ 559 $ 662 Amortization during the period $ 103 $ 208 Weighted average remaining life (in years) 6 6 Scheduled Amortization of Other Intangible Assets (Amounts in thousands) Total Year ending December 31, 2015 - remaining six months $ 1,156 2016 2,161 2017 1,125 2018 98 2019 28 2020 and thereafter 18 Total $ 4,586

SHORT-TERM BORROWINGS

SHORT-TERM BORROWINGS	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
SHORT-TERM BORROWINGS	SHORT-TERM BORROWINGS Summary of Short-Term Borrowings (Dollars in thousands) June 30, 2015 December 31, 2014 Amount Rate Amount Rate Outstanding: Repurchase agreements $ 150,801 0.45 % $ — — % FHLB advances 277,000 0.16 % 428,000 0.13 % Secured borrowings 6,894 4.05 % 4,385 4.45 % Total short-term borrowings $ 434,695 $ 432,385 Other Information: Unused FHLB advances availability $ 541,112 $ 265,529 Unused overnight Federal funds availability (1) $ 630,500 $ 630,500 Borrowing capacity through the FRB discount window primary credit program (2) $ 374,067 $ 403,752 (1) Our total availability of overnight Federal fund ("fed funds") borrowings is not a committed line of credit and is dependent upon lender availability. (2) Our borrowing capacity changes each quarter subject to available collateral and FRB discount factors. Borrowings with maturities of one year or less are classified as short-term and include repurchase agreements and FHLB advances. Repurchase Agreements - Repurchase agreements are agreements to sell securities subject to an obligation to repurchase the same or similar securities. Securities sold under agreements to repurchase are treated as a financing, and the obligations to repurchase securities sold are reflected as a liability in the Consolidated Statements of Financial Condition. Repurchase agreements generally mature within 1 to 90 days from the transaction date. At June 30, 2015 , the repurchase agreement obligation had a remaining contractual maturity of 7 days and was collateralized by $158.3 million of residential mortgage-backed securities, which were held in custody by third parties. The securities underlying the agreements remain in their respective accounts while pledged as collateral to our counter-party. The Company may be required to provide additional collateral based on the fair value of the underlying securities. The Company is therefore exposed to the risks that impact the fair value of its pledged securities, including interest rate movements, market liquidity, and credit events. As of June 30, 2015 , we did not have amounts at risk under repurchase agreements with any individual counterparty or group of counterparties that exceeded 10% of stockholders' equity. FHLB Advances - At June 30, 2015 , FHLB advances consisted of $7.0 million from the FHLB Atlanta, of which $2.0 million is included in short-term borrowings, and $670.0 million from FHLB Chicago, of which $275.0 million is included in short-term borrowings. As a member of the FHLB Chicago, the Bank has access to borrowing capacity which is subject to change based on the availability of acceptable collateral to pledge and the level of our investment in FHLB Chicago stock. At June 30, 2015 , our borrowing capacity was $1.2 billion , of which $541.1 million is available, subject to making the required additional investment in FHLB Chicago stock. Qualifying residential, multi-family and commercial real estate loans, home equity lines of credit, and residential mortgage-backed securities are pledged as collateral to secure current outstanding balances and additional borrowing availability. Revolving Line of Credit - The Company has a 364-day revolving line of credit (the "Facility") with a group of commercial banks allowing borrowing of up to $60.0 million , and maturing on September 25, 2015 . The interest rate applied to borrowings under the Facility will be, elected by the Company at the time an advance is made; interest rate elections include either 30-day or 90-day LIBOR plus 1.95% or Prime minus 0.50% at the time the advance is made. Any amounts outstanding under the Facility upon or before maturity may be converted, at the Company's option, to an amortizing term loan, with the balance of such loan due September 26, 2017 . At June 30, 2015 , no amounts have been drawn on the Facility. Secured Borrowings - Also included in short-term borrowings on the Consolidated Statements of Financial Condition are amounts related to certain loan participation agreements on loans we originated that were classified as secured borrowings because they did not qualify for sale accounting treatment. As of June 30, 2015 , and December 31, 2014 , these loan participation agreements totaled $6.9 million and $4.4 million , respectively. A corresponding amount was recorded within loans on the Consolidated Statements of Financial Condition at each of these dates.

LONG-TERM DEBT Long-Term Debt

LONG-TERM DEBT Long-Term Debt	6 Months Ended
	Jun. 30, 2015
Long-term Debt, Unclassified [Abstract]
Long-term Debt [Text Block]	LONG-TERM DEBT Long-Term Debt (Dollars in thousands) June 30, December 31, Parent Company: 2.93% junior subordinated debentures due 2034 (1)(a) $ 8,248 $ 8,248 2.00% junior subordinated debentures due 2035 (2)(a) 51,547 51,547 1.79% junior subordinated debentures due 2035 (3)(a) 41,238 41,238 10.00% junior subordinated debentures due 2068 (a) 68,755 68,755 7.125% subordinated debentures due 2042 (b) 125,000 125,000 Subtotal 294,788 294,788 Subsidiaries: FHLB advances 400,000 50,000 Total long-term debt $ 694,788 $ 344,788 (1) Variable rate in effect at June 30, 2015 , based on three-month LIBOR +2.65% . (2) Variable rate in effect at June 30, 2015 , based on three-month LIBOR +1.71% . (3) Variable rate in effect at June 30, 2015 , based on three-month LIBOR +1.50% . (a) Under the final regulatory capital rules issued in July 2013, these instruments are grandfathered for inclusion as a component of Tier 1 capital, although the Tier 1 capital treatment for these instruments could be subject to phase-out due to certain acquisitions. (b) Qualifies as Tier 2 capital for regulatory capital purposes. The $169.8 million in junior subordinated debentures presented in the table above were issued to four separate wholly-owned trusts for the purpose of issuing Company-obligated mandatorily redeemable trust preferred securities. Refer to Note 9 for further information on the nature and terms of these and previously issued debentures. At June 30, 2015 , outstanding long-term FHLB advances were secured by qualifying residential, multi-family, commercial real estate, and home equity lines of credit. From time to time, we may pledge eligible real estate mortgage-backed securities to support additional borrowings. Maturity and Rate Schedule for FHLB Long-Term Advances (Dollars in thousands) June 30, 2015 Amount Rate Maturity Date: June 5, 2017 $ 350,000 0.10 % March 25, 2019 2,000 4.26 % May 22, 2019 3,000 4.68 % September 12, 2019 (1) 15,000 3.72 % September 26, 2019 (1) 15,000 3.69 % December 9, 2019 (2) 15,000 3.58 % Total $ 400,000 0.55 % (1) Provides for a one-time option to increase the advances in September 2016, up to $150.0 million each at the same fixed rate as the original advance. The advances include prepayment features and are subject to a prepayment fee. (2) Provides for a one-time option to increase the advances in December 2016, up to $150.0 million each at the same fixed rate as the original advance. The advances include prepayment features and are subject to a prepayment fee. We reclassify long-term debt to short-term borrowings when the remaining maturity becomes less than one year. Scheduled Maturities of Long-Term Debt (Amounts in thousands) Total Year ending December 31, 2017 $ 350,000 2019 50,000 2020 and thereafter 294,788 Total $ 694,788

JUNIOR SUBORDINATED DEFERRABLE

JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURES HELD BY TRUSTS THAT ISSUED GUARANTEED CAPITAL DEBT SECURITIES	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURES HELD BY TRUSTS THAT ISSUED GUARANTEED CAPITAL DEBT SECURITIES	JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURES HELD BY TRUSTS THAT ISSUED GUARANTEED CAPITAL DEBT SECURITIES As of June 30, 2015 , we sponsored and wholly owned 100% of the common equity of four trusts that were formed for the purpose of issuing Company-obligated mandatorily redeemable trust preferred securities ("Trust Preferred Securities") to third-party investors and investing the proceeds from the sale of the Trust Preferred Securities solely in a series of junior subordinated debentures of the Company ("Debentures"). The Debentures held by the trusts, which in aggregate totaled $169.8 million at June 30, 2015 , are the sole assets of each respective trust. Our obligations under the Debentures and related documents, including the indentures, the declarations of trust and related Company guarantees, taken together, constitute a full and unconditional guarantee by the Company on a subordinated basis of distributions and redemption payments and liquidation payments on the Trust Preferred Securities. We currently have the right to redeem, in whole or in part, subject to any required regulatory approval, all or any series of the Debentures, in each case, at a redemption price of 100% of the principal amount of the Debentures being redeemed plus any accrued but unpaid interest to the redemption date. The repayment, redemption or repurchase of any of the Debentures would be subject to the terms of the applicable indenture and would result in a corresponding repayment, redemption or repurchase of an equivalent amount of the related series of Trust Preferred Securities. Any redemption of the 10% Debentures held by the PrivateBancorp Capital Trust IV ("Capital Trust IV") would be subject to the terms of the replacement capital covenant described below and any required regulatory approval. In connection with the issuance in 2008 of the 10% Debentures, which rank junior to the other Debentures, we entered into a replacement capital covenant that relates to the redemption of the 10% Debentures and the related Trust Preferred Securities. Under the replacement capital covenant, as amended in October 2012, we committed, for the benefit of certain debt holders, that we would not repay, redeem or repurchase the 10% Debentures or the related Trust Preferred Securities prior to June 2048 unless we have (1) obtained any required regulatory approval, and (2) raised certain amounts of qualifying equity or equity-like replacement capital at any time after October 10, 2012. The replacement capital covenant benefits holders of our "covered debt" as specified under the terms of the replacement capital covenant. Currently, under the replacement capital covenant, the "covered debt" is the Debentures held by PrivateBancorp Statutory Trust II. In the event that the Company's 7.125% subordinated debentures due 2042 are designated as or become the covered debt under the replacement capital covenant, the terms of such debentures provide that the Company is authorized to terminate the replacement capital covenant without any further action or payment. We may amend or terminate the replacement capital covenant in certain circumstances without the consent of the holders of the covered debt. Under current accounting rules, the trusts qualify as variable interest entities for which we are not the primary beneficiary and therefore are ineligible for consolidation in our financial statements. The Debentures issued by us to the trusts are included in our Consolidated Statements of Financial Condition as "long-term debt" with the corresponding interest distributions recorded as interest expense. The common shares issued by the trusts are included in other assets in our Consolidated Statements of Financial Condition with the related dividend distributions recorded in other non-interest income. Common Securities, Preferred Securities, and Related Debentures (Dollars in thousands) Common Securities Issued Trust Preferred Securities Issued (1) Earliest Redemption Date (on or after) (3) Principal Amount of Debentures (3) Issuance Date Coupon Rate (2) Maturity June 30, December 31, Bloomfield Hills Statutory Trust I May 2004 $ 248 $ 8,000 2.93 % June 17, 2009 June 2034 $ 8,248 $ 8,248 PrivateBancorp Statutory Trust II June 2005 1,547 50,000 2.00 % Sept. 15, 2010 Sept. 2035 51,547 51,547 PrivateBancorp Statutory Trust III Dec. 2005 1,238 40,000 1.79 % Dec. 15, 2010 Dec. 2035 41,238 41,238 PrivateBancorp Capital Trust IV May 2008 5 68,750 10.00 % June 15, 2013 June 2068 68,755 68,755 Total $ 3,038 $ 166,750 $ 169,788 $ 169,788 (1) The Trust Preferred Securities accrue distributions at a rate equal to the interest rate on, and have a maturity identical to that of, the related Debentures. The Trust Preferred Securities will be redeemed upon maturity or earlier redemption of the related Debentures. (2) Reflects the coupon rate in effect at June 30, 2015 . The coupon rate for the Bloomfield Hills Statutory Trust I is a variable rate based on three-month LIBOR plus 2.65% . The coupon rates for PrivateBancorp Statutory Trusts II and III are at a variable rate based on three-month LIBOR plus 1.71% for Trust II and three-month LIBOR plus 1.50% for Trust III. The coupon rate for PrivateBancorp Capital Trust IV is fixed. Distributions on all Trust Preferred Securities are payable quarterly. We have the right to defer payment of interest on the Debentures at any time or from time to time for a period not exceeding ten years in the case of the Debentures held by Trust IV, and five years in the case of all other Debentures, without causing an event of default under the related indenture, provided no extension period may extend beyond the stated maturity of the Debentures. During such extension period, distributions on the trust preferred securities would also be deferred, and our ability to pay dividends on our common stock would generally be prohibited. The Federal Reserve has the ability to prevent interest payments on the Debentures. (3) The Trust Preferred Securities are subject to mandatory redemption, in whole or in part, upon repayment of the Debentures at maturity or upon their earlier redemption in whole or in part. The Debentures are redeemable in whole or in part prior to maturity at any time after the dates shown in the table and only after we have obtained Federal Reserve approval, if then required under applicable guidelines or regulations.

EQUITY

EQUITY	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
EQUITY	EQUITY Preferred Stock At June 30, 2015 , and December 31, 2014 , there were one million shares of preferred stock authorized and none issued or outstanding. Nonvoting Common Stock At June 30, 2015 , and December 31, 2014 , there were five million shares of nonvoting common stock authorized and none issued or outstanding. Treasury Stock The Company reissues treasury stock, when available, or new shares to fulfill its obligation to issue shares granted pursuant to the share-based compensation plans. Treasury shares are reissued at average cost. The Company held 742 shares and 1,704 shares in treasury at June 30, 2015 , and December 31, 2014 , respectively. Comprehensive Income Change in Accumulated Other Comprehensive Income ("AOCI") by Component (Amounts in thousands) Six Months Ended June 30, 2015 2014 Unrealized Gain on Available-for-Sale Securities Accumulated (Loss) Gain on Effective Cash Flow Hedges Total Unrealized Gain on Available-for-Sale Securities Accumulated (Loss) Gain on Effective Cash Flow Hedges Total Balance at beginning of period $ 19,448 $ 1,469 $ 20,917 $ 12,960 $ (3,116 ) $ 9,844 (Decrease) increase in unrealized gains on securities (5,407 ) — (5,407 ) 15,236 — 15,236 Increase in unrealized gains on cash flow hedges — 8,126 8,126 — 11,878 11,878 Tax benefit (expense) on increase in unrealized gains (losses) 2,074 (3,154 ) (1,080 ) (5,972 ) (4,650 ) (10,622 ) Other comprehensive (loss) income before reclassifications (3,333 ) 4,972 1,639 9,264 7,228 16,492 Reclassification adjustment of net gains included in net income (1) (533 ) (5,072 ) (5,605 ) (527 ) (4,307 ) (4,834 ) Reclassification adjustment for tax expense on realized net gains (2) 207 1,970 2,177 208 1,696 1,904 Amounts reclassified from AOCI (326 ) (3,102 ) (3,428 ) (319 ) (2,611 ) (2,930 ) Net current period other comprehensive (loss) income (3,659 ) 1,870 (1,789 ) 8,945 4,617 13,562 Balance at end of period $ 15,789 $ 3,339 $ 19,128 $ 21,905 $ 1,501 $ 23,406 (1) The amounts reclassified from AOCI for the available-for-sale securities are included in net securities gains on the Consolidated Statements of Income, while the amounts reclassified from AOCI for cash flow hedges are included in interest income on loans on the Consolidated Statements of Income. (2) The tax expense amounts reclassified from AOCI in connection with the available-for-sale securities reclassification and cash flow hedges reclassification are included in income tax provision on the Consolidated Statements of Income.

EARNINGS PER COMMON SHARE

EARNINGS PER COMMON SHARE	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
EARNINGS PER COMMON SHARE	EARNINGS PER COMMON SHARE Basic and Diluted Earnings per Common Share (Amounts in thousands, except per share data) Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Basic earnings per common share Net income $ 46,422 $ 40,824 $ 87,906 $ 75,329 Net income allocated to participating stockholders (1) (366 ) (519 ) (838 ) (1,147 ) Net income allocated to common stockholders $ 46,056 $ 40,305 $ 87,068 $ 74,182 Weighted-average common shares outstanding 77,942 77,062 77,676 76,869 Basic earnings per common share $ 0.59 $ 0.52 $ 1.12 $ 0.97 Diluted earnings per common share Diluted earnings applicable to common stockholders (2) $ 46,059 $ 40,308 $ 87,080 $ 74,192 Weighted-average diluted common shares outstanding: Weighted-average common shares outstanding 77,942 77,062 77,676 76,869 Dilutive effect of stock awards (3) 1,216 744 1,161 743 Weighted-average diluted common shares outstanding 79,158 77,806 78,837 77,612 Diluted earnings per common share $ 0.58 $ 0.52 $ 1.10 $ 0.96 (1) Participating stockholders are those that hold certain share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents. Such shares or units are considered participating securities (i.e., certain of the Company’s deferred and restricted stock units and nonvested restricted stock awards). (2) Net income allocated to common stockholders for basic and diluted earnings per share may differ under the two-class method as a result of adding common stock equivalents for options to dilutive shares outstanding, which alters the ratio used to allocate earnings to common stockholders and participating securities for the purposes of calculating diluted earnings per share. (3) For the quarters ended June 30, 2015 and 2014 , the weighted-average outstanding non-participating securities of 238,000 and 1.3 million shares, respectively, and for the six months ended June 30, 2015 and 2014 , the weighted-average outstanding non-participating securities of 483,000 and 1.3 million shares, respectively, were not included in the computation of diluted earnings per common share because their inclusion would have been antidilutive for the periods presented.

INCOME TAXES

INCOME TAXES	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
INCOME TAXES	INCOME TAXES Income Tax Provision Analysis (Dollars in thousands) Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Income before income taxes $ 73,668 $ 66,818 $ 140,386 $ 122,349 Income tax provision: Current income tax provision $ 28,691 $ 26,086 $ 50,231 $ 45,953 Deferred income tax (benefit) provision (1,445 ) (92 ) 2,249 1,067 Total income tax provision $ 27,246 $ 25,994 $ 52,480 $ 47,020 Effective tax rate 37.0 % 38.9 % 37.4 % 38.4 % Deferred Tax Assets Net deferred tax assets totaled $97.0 million at June 30, 2015 , and $98.2 million at December 31, 2014 . Net deferred tax assets are included in other assets in the accompanying Consolidated Statements of Financial Condition. At June 30, 2015 , we have concluded that it is more likely than not that the deferred tax assets will be realized and, accordingly, no valuation allowance was recorded. This conclusion was based in part on our recent earnings history, on both a book and tax basis, and our outlook for earnings and taxable income in future periods. At both June 30, 2015 , and December 31, 2014 , we had $131,000 and $212,000 , respectively, of unrecognized tax benefits relating to uncertain tax positions that, if recognized, would impact the effective tax rate.

DERIVATIVE INSTRUMENTS

DERIVATIVE INSTRUMENTS	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
DERIVATIVE INSTRUMENTS	DERIVATIVE INSTRUMENTS We utilize an overall risk management strategy that incorporates the use of derivative instruments to reduce both interest rate risk (relating to mortgage loan commitments and planned sales of loans) and foreign currency volatility (relating to certain loans denominated in currencies other than the U.S. dollar). We also use these instruments to accommodate our clients as we provide them with risk management solutions. None of the client-related and other end-user derivatives, noted in the table below, were designated as hedging instruments for accounting purposes at June 30, 2015 , and December 31, 2014 . We also use interest rate derivatives to hedge variability in forecasted interest cash flows in our loan portfolio, which is comprised primarily of floating-rate loans. These derivatives are designated as cash flow hedges. Derivatives expose us to counterparty credit risk. Credit risk is managed through our standard underwriting process. Actual exposures are monitored against various types of credit limits established to contain risk within parameters. Additionally, credit risk is managed through the use of collateral, netting agreements, and the establishment of internal concentration limits by financial institution. Notional Amounts and Fair Value of Derivative Instruments (Amounts in thousands) Asset Derivatives Liability Derivatives June 30, 2015 December 31, 2014 June 30, 2015 December 31, 2014 Notional (1) Fair Value Notional (1) Fair Value Notional (1) Fair Value Notional (1) Fair Value Derivatives designated as hedging instruments: Interest rate contracts $ 600,000 $ 5,817 $ 550,000 $ 4,542 $ 200,000 $ 1,284 $ 250,000 $ 2,715 Derivatives not designated as hedging instruments: Client-related derivatives: Interest rate contracts $ 3,810,941 $ 45,099 $ 3,881,202 $ 42,879 $ 3,810,941 $ 46,150 $ 3,743,827 $ 43,792 Foreign exchange contracts 249,258 6,547 98,285 5,183 219,588 5,681 86,582 4,659 Risk participation agreements (1) 85,745 15 98,478 19 114,637 41 100,941 24 Total client-related derivatives $ 51,661 $ 48,081 $ 51,872 $ 48,475 Other end-user derivatives: Foreign exchange contracts $ 9,490 $ 87 $ 18,551 $ 241 $ 207 $ 3 $ 2,892 $ 45 Mortgage banking derivatives 456 786 130 801 Total other end-user derivatives $ 543 $ 1,027 $ 133 $ 846 Total derivatives not designated as hedging instruments $ 52,204 $ 49,108 $ 52,005 $ 49,321 Netting adjustments (2) (10,579 ) (10,588 ) (28,593 ) (25,269 ) Total derivatives $ 47,442 $ 43,062 $ 24,696 $ 26,767 (1) The remaining average notional amounts are shown for risk participation agreements. (2) Represents netting of derivative asset and liability balances, and related cash collateral, with the same counterparty subject to master netting agreements. Refer to Note 14 for additional information regarding master netting agreements. Certain of our derivative contracts contain embedded credit risk contingent features that if triggered either allow the derivative counterparty to terminate the derivative or require additional collateral. These contingent features are triggered if we do not meet specified financial performance indicators such as minimum capital ratios under the Federal banking agencies’ guidelines. All such requirements were met at June 30, 2015 and December 31, 2014 . Details on these derivative contracts are set forth in the following table. Derivatives Subject to Credit Risk Contingency Features (Amounts in thousands) June 30, December 31, Fair value of derivatives with credit contingency features in a net liability position $ 14,207 $ 14,596 Collateral posted for those transactions in a net liability position $ 16,230 $ 16,865 If credit risk contingency features were triggered: Additional collateral required to be posted to derivative counterparties $ — $ — Outstanding derivative instruments that would be immediately settled $ 14,207 $ 14,596 Derivatives Designated in Hedge Relationships The objective of our hedging program is to use interest rate derivatives to manage our exposure to interest rate movements. Cash Flow Hedges – Under our cash flow hedging program, we enter into receive fixed/pay variable interest rate swaps to convert certain floating-rate commercial loan cash flows to fixed-rate to reduce the variability in forecasted interest cash flows due to market interest rate changes. We use regression analysis to assess the effectiveness of cash flow hedges at both the inception of the hedge relationship and on an ongoing basis. Ineffectiveness is generally measured as the amount by which the cumulative change in fair value of the hedging instrument exceeds the present value of the cumulative change in the expected cash flows of the hedged item. Measured ineffectiveness is recognized directly in other non-interest income in the Consolidated Statements of Income. During the six months ended June 30, 2015 , there were no gains or losses from cash flow hedge derivatives related to ineffectiveness that were reclassified to current earnings. The effective portion of the gains or losses on cash flow hedges are recorded, net of tax, in accumulated other comprehensive income ("AOCI") and are subsequently reclassified to interest income on loans in the period that the hedged interest cash flows affect earnings. As of June 30, 2015 , the maximum length of time over which forecasted interest cash flows are hedged is five years . There are no components of derivative gains or losses excluded from the assessment of hedge effectiveness related to our cash flow hedge strategy. Change in Accumulated Other Comprehensive Income Related to Interest Rate Swaps Designated as Cash Flow Hedge (Amounts in thousands) Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Pre-tax After-tax Pre-tax After-tax Pre-Tax After-tax Pre-Tax After-tax Accumulated unrealized gain (loss) at beginning of period $ 8,497 $ 5,191 $ (3,016 ) $ (1,839 ) $ 2,405 $ 1,469 $ (5,110 ) $ (3,116 ) Amount of (loss) gain recognized in AOCI (effective portion) (504 ) (289 ) 7,741 4,714 8,126 4,972 11,878 7,228 Amount reclassified from AOCI to interest income on loans (2,534 ) (1,563 ) (2,264 ) (1,374 ) (5,072 ) (3,102 ) (4,307 ) (2,611 ) Accumulated unrealized gain at end of period $ 5,459 $ 3,339 $ 2,461 $ 1,501 $ 5,459 $ 3,339 $ 2,461 $ 1,501 As of June 30, 2015 , $4.9 million in net deferred gains , net of tax, recorded in AOCI are expected to be reclassified into earnings during the next twelve months. This amount could differ from amounts actually recognized due to changes in interest rates, hedge de-designations, and the addition of other hedges subsequent to June 30, 2015 . During the six months ended June 30, 2015 , there were no gains or losses from cash flow hedge derivatives reclassified to current earnings because it became probable that the original forecasted transaction would not occur. Derivatives Not Designated in Hedge Relationships Other End-User Derivatives – We use forward commitments to sell to-be-announced securities and other commitments to sell residential mortgage loans at specified prices to economically hedge the change in fair value of customer interest rate lock commitments and residential mortgage loans held-for-sale. The forward commitments to sell and the interest rate lock commitments are considered derivatives. At June 30, 2015 , the par value of our residential mortgage loans held-for-sale totaled $24.7 million , the notional value of our interest rate lock commitments totaled $43.3 million , and the notional value of our forward commitments to sell totaled $74.3 million . We are also exposed at times to foreign exchange risk as a result of originating loans in which the principal and interest are settled in a currency other than U.S. dollars. As of June 30, 2015 , our exposure was to the Euro, Canadian dollar, and British pound on $9.6 million of loans. We manage this risk using forward currency derivatives. Client-Related Derivatives – We offer, through our capital markets group, over-the-counter interest rate and foreign exchange derivatives to our clients, including but not limited to, interest rate swaps, interest rate options (also referred to as caps, floors, collars, etc.), foreign exchange forwards and options, as well as cash products such as foreign exchange spot transactions. When our clients enter into an interest rate or foreign exchange derivative transaction with us, we mitigate our exposure to market risk through the execution of off-setting positions with inter-bank dealer counterparties. Although the off-setting nature of transactions originated by our capital markets group limits our market risk exposure, they do expose us to other risks including counterparty credit, settlement, and operational risk. To accommodate our loan clients, we occasionally enter into risk participation agreements ("RPA") with counterparty banks to either accept or transfer a portion of the credit risk related to their interest rate derivatives or transfer a portion of the credit risk related to our interest rate derivatives. This allows clients to execute an interest rate derivative with one bank while allowing for distribution of the credit risk among participating members. We have entered into written RPAs in which we accept a portion of the credit risk associated with an interest rate derivative of another bank's loan client in exchange for a fee. We manage this credit risk through our loan underwriting process, and when appropriate, the RPA is backed by collateral provided by the clients under their loan agreement. The current payment/performance risk of written RPAs is assessed using internal risk ratings which range from 1 to 8 with the latter representing the highest credit risk. The risk rating is based on several factors including the financial condition of the RPA’s underlying derivative counterparty, present economic conditions, performance trends, leverage, and liquidity. The maximum potential amount of future undiscounted payments that we could be required to make under our written RPAs assumes that the underlying derivative counterparty defaults and that the floating interest rate index of the underlying derivative remains at zero percent. In the event that we would have to pay out any amounts under our RPAs, we will seek to maximize the recovery of these amounts from assets that our clients pledged as collateral for the derivative and the related loan. Risk Participation Agreements (Dollars in thousands) June 30, December 31, Fair value of written RPAs $ 41 $ 24 Range of remaining terms to maturity (in years) Less than 1 to 5 Less than 1 to 4 Range of assigned internal risk ratings 2 to 7 2 to 7 Maximum potential amount of future undiscounted payments $ 2,999 $ 3,927 Percent of maximum potential amount of future undiscounted payments covered by proceeds from liquidation of pledged collateral 34 % 25 % Gain (Loss) Recognized on Derivative Instruments Not Designated in Hedging Relationship (Amounts in thousands) Location in Consolidated Statement of Income Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Gain on client-related derivatives: Interest rate contracts Capital markets income $ 2,536 $ 2,509 $ 4,899 $ 5,019 Foreign exchange contracts Capital markets income 2,350 2,383 4,103 3,798 Risk participation agreements Capital markets income 33 114 89 272 Total client-related derivatives 4,919 5,006 9,091 9,089 (Loss) gain on end-user derivatives: Foreign exchange derivatives Other income, service and charges income (500 ) (259 ) 550 (253 ) Mortgage banking derivatives Mortgage banking income 380 (134 ) 340 (316 ) Total end-user derivatives (120 ) (393 ) 890 (569 ) Total derivatives not designated in hedging relationship $ 4,799 $ 4,613 $ 9,981 $ 8,520

BALANCE SHEET OFFSETTING BALANC

BALANCE SHEET OFFSETTING BALANCE SHEET OFFSETTING	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
BALANCE SHEET OFFSETTING	Master Netting Agreements Certain financial instruments, including repurchase agreements, securities lending arrangements and derivatives, may be eligible for offset in the consolidated balance sheet and/or subject to enforceable master netting agreement or similar agreements. Authoritative accounting guidance permits the netting of financial assets and liabilities when a legally enforceable master netting agreement exists between us and a counterparty. A master netting agreement is an agreement between two counterparties who have multiple financial contracts with each other that provide for the net settlement of contracts through a single payment, in a single currency, in the event of default on or termination of any one contract. For those financial instruments subject to enforceable master netting agreements, assets and liabilities, and related cash collateral, with the same counterparty are reported on a net basis within the assets and liabilities on the Consolidated Statements of Financial Condition. Derivative contracts may require us to provide or receive cash or financial instrument collateral. Collateral associated with derivative assets and liabilities subject to enforceable master netting agreements with the same counterparty is posted on a net basis. We have pledged cash or financial collateral in accordance with each counterparty's collateral posting requirements for all of the Company's derivative assets and liabilities in a net liability position as of June 30, 2015 and December 31, 2014 . Certain collateral posting requirements are subject to posting thresholds and minimum transfer amounts, such that we are only required to post collateral once the posting threshold is met, and any adjustments to the amount of collateral posted must meet minimum transfer amounts. As of June 30, 2015 and December 31, 2014 , $18.0 million and $14.7 million of cash collateral pledged, respectively, was netted with the related financial liabilities on the Consolidated Statement of Financial Condition. To the extent not netted against fair values under a master netting agreement, the excess collateral received or pledged is included in other short-term borrowings or other investments, respectively. There was no excess cash collateral pledged at June 30, 2015 and December 31, 2014 . Any securities pledged to counterparties as financial instrument collateral remain on the Consolidated Statements of Financial Condition as long as we do not default. The following table presents information about our financial assets and liabilities and the related collateral by derivative type (e.g., interest rate contracts). As we post collateral with counterparties on the basis of our net position in all financial contracts with a given counterparty, the information presented below aggregates the financial contracts entered into with the same counterparty. Offsetting of Financial Assets and Liabilities (Amounts in thousands) Gross Amounts of Recognized Assets / Liabilities Gross Amounts Offset (2) Net Amount Presented on the Statement of Financial Condition Gross Amounts Not Offset on the Statement of Financial Condition (3) Net Amount Financial Instruments (4) Cash Collateral As of June 30, 2015 Financial assets: Derivatives (1) : Interest rate contracts $ 50,916 $ (7,847 ) $ 43,069 $ — $ — $ 43,069 Foreign exchange contracts 3,866 (2,725 ) 1,141 — — 1,141 Risk participation agreements 15 — 15 — — 15 Mortgage banking derivatives 58 (7 ) 51 — — 51 Total derivatives subject to a master netting agreement 54,855 (10,579 ) 44,276 — — 44,276 Total derivatives not subject to a master netting agreement 3,166 — 3,166 — — 3,166 Total derivatives $ 58,021 $ (10,579 ) $ 47,442 $ — $ — $ 47,442 Financial liabilities: Derivatives (1) : Interest rate contracts $ 47,434 $ (26,424 ) $ 21,010 $ (17,015 ) $ — $ 3,995 Foreign exchange contracts 4,462 (2,162 ) 2,300 (1,863 ) — 437 Risk participation agreements 41 — 41 (33 ) — 8 Mortgage banking derivatives 7 (7 ) — — — — Total derivatives subject to a master netting agreement 51,944 (28,593 ) 23,351 (18,911 ) — 4,440 Total derivatives not subject to a master netting agreement 1,345 — 1,345 — — 1,345 Total derivatives 53,289 (28,593 ) 24,696 (18,911 ) — 5,785 Repurchase agreements 150,801 — 150,801 (150,801 ) — — Total $ 204,090 $ (28,593 ) $ 175,497 $ (169,712 ) $ — $ 5,785 (1) All derivative contracts are over-the-counter contracts. (2) Represents financial instrument and related cash collateral entered into with the same counterparty and subject to a master netting agreement. (3) Collateralization is determined at the counterparty level. If overcollateralization exists, the amount shown is limited to the fair value of the financial instrument. (4) Financial instruments are disclosed at fair value. Financial instrument collateral is allocated pro-rata amongst the derivative liabilities to which it relates. Offsetting of Financial Assets and Liabilities (Continued) (Amounts in thousands) Gross Amounts of Recognized Assets / Liabilities Gross Amounts Offset (2) Net Amount Presented on the Statement of Financial Condition Gross Amounts Not Offset on the Statement of Financial Condition (3) Net Amount Financial Instruments (4) Cash Collateral As of December 31, 2014 Financial assets: Derivatives (1) : Interest rate contracts $ 47,421 $ (7,433 ) $ 39,988 $ — $ — $ 39,988 Foreign exchange contracts 3,664 (3,154 ) 510 — — 510 Risk participation agreements 19 (1 ) 18 — — 18 Total derivatives subject to a master netting agreement 51,104 (10,588 ) 40,516 — — 40,516 Total derivatives not subject to a master netting agreement 2,546 — 2,546 — — 2,546 Total derivatives 53,650 (10,588 ) 43,062 — — 43,062 Financial liabilities: Derivatives (1) : Interest rate contracts $ 46,507 $ (24,067 ) $ 22,440 $ (17,755 ) $ — $ 4,685 Foreign exchange contracts 2,421 (1,202 ) 1,219 (965 ) — 254 Risk participation agreements 24 — 24 (19 ) — 5 Total derivatives subject to a master netting agreement 48,952 (25,269 ) 23,683 (18,739 ) — 4,944 Total derivatives not subject to a master netting agreement 3,084 — 3,084 — — 3,084 Total derivatives 52,036 (25,269 ) 26,767 (18,739 ) — 8,028 (1) All derivative contracts are over-the-counter contracts. (2) Represents financial instrument and related cash collateral entered into with the same counterparty and subject to a master netting agreement. (3) Collateralization is determined at the counterparty level. If overcollateralization exists, the amount shown is limited to the fair value of the financial instrument. (4) Financial instruments are disclosed at fair value. Financial instrument collateral is allocated pro-rata amongst the derivative liabilities to which it relates.

COMMITMENTS, GUARANTEES, AND CO

COMMITMENTS, GUARANTEES, AND CONTINGENT LIABILITIES	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
COMMITMENTS, GUARANTEES, AND CONTINGENT LIABILITIES	COMMITMENTS, GUARANTEES, AND CONTINGENT LIABILITIES Credit Extension Commitments and Guarantees In the normal course of business, we enter into a variety of financial instruments with off-balance sheet risk to meet the financing needs of our clients and to conduct lending activities. These instruments principally include commitments to extend credit, standby letters of credit, and commercial letters of credit. These instruments involve, to varying degrees, elements of credit and liquidity risk in excess of the amounts reflected in the Consolidated Statements of Financial Condition. Contractual or Notional Amounts of Financial Instruments (1) (Amounts in thousands) June 30, December 31, Commitments to extend credit: Home equity lines $ 132,820 $ 129,943 Residential 1-4 family construction 43,162 53,847 Commercial real estate, other construction, and land development 1,185,398 1,123,123 Commercial and industrial 3,863,648 4,031,217 All other commitments 521,199 336,623 Total commitments to extend credit $ 5,746,227 $ 5,674,753 Letters of credit: Financial standby $ 353,416 $ 334,175 Performance standby 40,559 38,167 Commercial letters of credit 5,315 5,224 Total letters of credit $ 399,290 $ 377,566 (1) Includes covered loan commitments of $10.3 million and $11.0 million as of June 30, 2015 , and December 31, 2014 , respectively. Commitments to extend credit are agreements to lend funds to, or issue letters of credit for the account of, a client as long as there is no violation of any condition established in the credit agreement. Commitments generally have fixed expiration dates or other termination clauses and variable interest rates tied to the prime rate or LIBOR and may require payment of a fee for the unused portion of the commitment or for the amounts issued but not drawn on letters of credit. All or a portion of unfunded commitments require regulatory capital support, except for unfunded commitments of less than one year that are unconditionally cancellable. Since many of our commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements of the borrowers. As of June 30, 2015 , we had a reserve for unfunded commitments of $13.2 million , which reflects our estimate of inherent losses associated with these commitment obligations. The balance of this reserve changes based on a number of factors including: the balance of outstanding commitments and our assessment of the likelihood of borrowers to utilize these commitments. The reserve is recorded in other liabilities in the Consolidated Statements of Financial Condition. Standby and commercial letters of credit are conditional commitments issued by us to guarantee the performance of a client to a third party. Standby letters of credit include performance and financial guarantees for clients in connection with contracts between our clients and third parties. Standby letters of credit are agreements where we are obligated to make payment to a third party on behalf of a client in the event the client fails to meet their contractual obligations. Commercial letters of credit are issued specifically to facilitate commerce and typically result in the commitment being drawn upon when the underlying transaction is consummated between the client and the third party. In most cases, the Company receives a fee for the amount of a letter of credit issued but not drawn upon. In the event of a client’s nonperformance, our credit loss exposure is equal to the contractual amount of those commitments. We manage this credit risk in a similar manner to evaluating credit risk in extending loans to clients under our credit policies. We use the same credit policies in making credit commitments as for on-balance sheet instruments, mitigating exposure to credit loss through various collateral requirements, if deemed necessary. In the event of nonperformance by the clients, we have rights to the underlying collateral, which could include commercial real estate, physical plant and property, inventory, receivables, cash and marketable securities. The maximum potential future payments guaranteed by us under standby letters of credit arrangements are equal to the contractual amount of the commitment. The unamortized fees associated with standby letters of credit, which are included in other liabilities in the Consolidated Statements of Financial Condition, totaled $2.2 million as of June 30, 2015 . We amortize these amounts into income over the commitment period. As of June 30, 2015 , standby letters of credit had a remaining weighted-average term of approximately 15 months , with remaining actual lives ranging from less than 1 year to 6 years . Other Commitments The Company has unfunded commitments to Community Reinvestment Act ("CRA") investments and other investment partnerships totaling $18.7 million at June 30, 2015 . Of these commitments, $8.3 million related to legally-binding unfunded commitments for tax-credit investments and was included within other assets and other liabilities on the Consolidated Statements of Financial Condition. Credit Card Settlement Guarantees Our third-party corporate credit card provider issues corporate purchase credit cards on behalf of our commercial clients. The corporate purchase credit cards are issued to employees of certain of our commercial clients at the client’s direction and used for payment of business-related expenses. In most circumstances, these cards will be underwritten by our third-party provider. However, in certain circumstances, we may enter into a recourse agreement, which transfers the credit risk from the third-party provider to us in the event that the client fails to meet its financial payment obligation. In these circumstances, a total maximum exposure amount is established for our corporate client. In addition to the obligations presented in the prior table, the maximum potential future payments guaranteed by us under this third-party settlement guarantee were $15.4 million at June 30, 2015 . We believe that the estimated amounts of maximum potential future payments are not representative of our actual potential loss given our insignificant historical losses from this third-party settlement guarantee program. As of June 30, 2015 , we have no recorded contingent liability in the consolidated financial statements for this settlement guarantee program, and management believes that the probability of any loss under this arrangement is remote. Mortgage Loans Sold with Recourse Certain mortgage loans sold in the secondary market have limited recourse provisions. The losses for the years ended June 30, 2015 and 2014 , arising from limited recourse provisions were not material . Based on this experience, the Company has not established any liability for potential future losses relating to mortgage loans sold in prior periods. Legal Proceedings In June 2013, we were served with a complaint naming the Bank as an additional defendant in a lawsuit pending in the Circuit Court of the 21st Judicial Circuit, Kankakee County, Illinois, known as Maas vs. Marek et. al. The lawsuit, brought by the beneficiaries of two trusts for which the Bank is serving as the successor trustee, seeks reimbursement of penalties and interest assessed by the IRS due to the late payment of certain generation skipping taxes by the trusts, as well as certain related attorney fees and other damages. The other named defendants include legal and accounting professionals that provided services related to the matters involved. In January 2014, the Circuit Court denied the Bank’s motion to dismiss, and the matter is now in the discovery process. Although we are not able to predict the likelihood of an adverse outcome, we currently anticipate that ultimate resolution of this matter will not have a material adverse impact on our financial condition or results of operations. As of June 30, 2015 , there were various other legal proceedings pending against the Company and its subsidiaries in the ordinary course of business. Management does not believe that the outcome of these proceedings will have, individually or in the aggregate, a material adverse effect on the Company’s results of operations, financial condition or cash flows.

ESTIMATED FAIR VALUE OF FINANCI

ESTIMATED FAIR VALUE OF FINANCIAL INSTRUMENTS	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
ESTIMATED FAIR VALUE OF FINANCIAL INSTRUMENTS	ESTIMATED FAIR VALUE OF FINANCIAL INSTRUMENTS We measure, monitor, and disclose certain of our assets and liabilities on a fair value basis. Fair value is used on a recurring basis to account for securities available-for-sale, mortgage loans held-for-sale, derivative assets, derivative liabilities, and certain other assets and other liabilities. In addition, fair value is used on a nonrecurring basis to apply lower-of-cost-or-market accounting to foreclosed real estate and certain other loans held-for-sale, evaluate assets or liabilities for impairment, including collateral-dependent impaired loans, and for disclosure purposes. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Depending on the nature of the asset or liability, we use various valuation techniques and input assumptions when estimating fair value. U.S. GAAP requires us to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value and establishes a fair value hierarchy that prioritizes the inputs used to measure fair value into three broad levels based on the reliability of the input assumptions. The hierarchy gives the highest priority to level 1 measurements and the lowest priority to level 3 measurements. The three levels of the fair value hierarchy are defined as follows: • Level 1 – Unadjusted quoted prices for identical assets or liabilities traded in active markets. • Level 2 – Observable inputs other than level 1 prices, such as quoted prices for similar instruments; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the asset or liability. • Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. The categorization of where an asset or liability falls within the hierarchy is based on the lowest level of input that is significant to the fair value measurement. Valuation Methodology We believe our valuation methods are appropriate and consistent with other market participants. However, 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. Additionally, the methods used may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. The following describes the valuation methodologies we use for assets and liabilities measured at fair value, including the general classification of the assets and liabilities pursuant to the valuation hierarchy. Securities Available-for-Sale – Securities available-for-sale include U.S. Treasury, U.S. Agency, collateralized mortgage obligations, residential mortgage-backed securities, state and municipal securities, and foreign sovereign debt. Substantially all available-for-sale securities are fixed-income instruments that are not quoted on an exchange, but may be traded in active markets. The fair value of these securities is based on quoted market prices obtained from external pricing services. The principal markets for our securities portfolio are the secondary institutional markets, with an exit price that is predominantly reflective of bid level pricing in those markets. U.S. Treasury securities have been classified in level 1 of the valuation hierarchy. All other remaining securities are classified in level 2 of the valuation hierarchy. On a quarterly basis, the Company uses a variety of methods to validate the overall reasonableness of the fair values obtained from external pricing services, including evaluating pricing service inputs and methodologies, using exception reports based on analytical criteria, comparing prices obtained to prices received from other pricing sources, and reviewing the reasonableness of prices based on the Company’s knowledge of market liquidity and other market-related conditions. While we may challenge valuation inputs used in determining prices obtained from external pricing services based on our validation procedures, we have not altered the fair values ultimately provided by the external pricing services during the periods presented. Mortgage Loans Held-for-Sale – Mortgage loans held-for-sale represent residential mortgage loan originations intended to be sold in the secondary market. We have elected the fair value option for residential mortgage loans originated with the intention of selling to a third party. The election of the fair value option aligns the accounting for these loans with the related mortgage banking derivatives used to economically hedge them. These mortgage loans are measured at fair value as of each reporting date, with changes in fair value recognized through mortgage banking non-interest income. The fair value of mortgage loans held-for-sale is determined based on prices obtained for loans with similar characteristics from third-party sources. On a quarterly basis, the Company validates the overall reasonableness of the fair values obtained from third-party sources by comparing prices obtained to prices received from various other pricing sources, and reviewing the reasonableness of prices based on Company knowledge of market liquidity and other market-related conditions. Mortgage loans held-for-sale are classified in level 2 of the valuation hierarchy. Collateral-Dependent Impaired Loans – We do not record loans held for investment at fair value on a recurring basis. However, periodically, we record nonrecurring adjustments to reduce the carrying value of certain impaired loans based on fair value measurement. This population of impaired loans includes those for which repayment of the loan is expected to be provided solely by the underlying collateral. We measure the fair value of collateral-dependent impaired loans based on the fair value of the collateral securing these loans less estimated selling costs. A majority of collateral-dependent impaired loans are secured by real estate with the fair value generally determined based upon appraisals performed by a certified or licensed appraiser using a combination of valuation techniques such as sales comparison, income capitalization and cost approach and include inputs such as absorption rates, capitalization rates and comparables. We also consider other factors or recent developments that could result in adjustments to the collateral value estimates indicated in the appraisals. When a collateral-dependent loan is secured by non-real estate collateral such as receivables, inventory, or equipment, the fair value is generally determined based upon appraisals, field exams, or receivable reports. The valuation techniques and inputs are reviewed internally by an asset-based specialist for reasonableness of estimated liquidation costs, collectability probabilities, and other market data. Accordingly, fair value estimates for collateral-dependent impaired loans are classified in level 3 of the valuation hierarchy. The carrying value of all impaired loans and the related specific reserves are disclosed in Note 4 . At the time a collateral-dependent loan is initially determined to be impaired, we review the existing appraisal. If the most recent appraisal is greater than one-year old, a new appraisal of the underlying collateral is obtained. For collateral-dependent impaired loans that are secured by real estate, we generally obtain "as is" appraisal values in order to evaluate impairment. Appraisals for real estate collateral-dependent impaired loans in excess of $500,000 are updated with new independent appraisals at least annually and are formally reviewed by our internal appraisal department. Additional diligence is performed at the six-month interval between annual appraisals. If during the course of the six-month review process there is evidence supporting a meaningful decline in the value of collateral, the appraised value is either adjusted downward or a new appraisal is required to support the value of the impaired loan . As part of our internal review process, we consider other factors or recent developments that could adjust the valuations indicated in the appraisals or internal reviews. The Company’s internal appraisal review process validates the reasonableness of appraisals in conjunction with analyzing sales and market data from an array of market sources. Covered Asset OREO and OREO – Covered asset OREO and OREO generated from our originated book of business are valued on a nonrecurring basis using third-party appraisals of each property and our judgment of other relevant market conditions and are classified in level 3 of the valuation hierarchy. As part of our internal review process, we consider other factors or recent developments that could adjust the valuations indicated in the appraisals or internal reviews. Updated appraisals on both OREO portfolios are typically obtained every twelve months and evaluated internally at least every six months. In addition, both property-specific and market-specific factors as well as collateral type factors are taken into consideration, which may result in obtaining more frequent appraisal updates or internal assessments. Appraisals are conducted by third-party independent appraisers under internal direction and engagement using a combination of valuation techniques such as sales comparison, income capitalization and cost approach and include inputs such as absorption rates, capitalization rate and comparables. Any appraisal with a value in excess of $250,000 is subject to a compliance review. Appraisals received with a value in excess of $1.0 million are subject to a technical review. Appraisals are either reviewed internally by our appraisal department or sent to an outside technical firm if appropriate. Both levels of review involve a scope appropriate for the complexity and risk associated with the OREO. To validate the reasonableness of the appraisals obtained, the Company compares the appraised value to the actual sales price of properties sold and analyzes the reasons why a property may be sold for less than its appraised value. Derivative Assets and Derivative Liabilities – Derivative instruments with positive fair values are reported as an asset and derivative instruments with negative fair value are reported as liabilities, in both cases after taking into account the effects of master netting agreements. For derivative counterparties with which we have a master netting agreement, we measure nonperformance risk on the basis of our net exposure to the counterparty. The fair value of derivative assets and liabilities is determined based on prices obtained from third-party advisors using standardized industry models, or based on quoted market prices obtained from external pricing services. Many factors affect derivative values, including the level of interest rates, the market’s perception of our nonperformance risk as reflected in our credit spread, and our assessment of counterparty nonperformance risk. The nonperformance risk assessment is based on our evaluation of credit risk, or if available, on observable external assessments of credit risk. Values of derivative assets and liabilities are primarily based on observable inputs and are classified in level 2 of the valuation hierarchy, with the exception of certain client-related derivatives, risk participation agreements, and interest rate lock commitments, as discussed below. On a quarterly basis, the Company uses a variety of methods to validate the overall reasonableness of the fair values obtained from third-party advisors, including evaluating inputs and methodologies used by the third-party advisors, comparing prices obtained to prices received from other pricing sources, and reviewing the reasonableness of prices based on the Company's knowledge of market liquidity and other market-related conditions. While we may challenge valuation inputs used in determining prices obtained from third parties based on our validation procedures, during the quarters ended June 30, 2015 and 2014 , we did not alter the fair values ultimately provided by the third-party advisors. Level 3 derivatives include risk participation agreements, derivatives associated with clients whose loans are risk rated 6 or higher ("watch list derivative"), and interest rate lock commitments. Refer to "Credit Quality Indicators" in Note 4 for further discussion of risk ratings. For the level 3 risk participation agreements and watch list derivatives, the Company obtains prices from third-party advisors, consistent with the valuation processes employed for the Company’s derivatives classified in level 2 of the fair value hierarchy, and then applies loss factors to adjust the prices obtained from third-party advisors. The significant unobservable inputs that are employed in the valuation process for the risk participation agreements and watch list derivatives that cause these derivatives to be classified in level 3 of the fair value hierarchy are the historic loss factors specific to the particular industry segment and risk rating category. The loss factors are updated quarterly and are derived and aligned with the loss factors utilized in the calculation of the Company’s general reserve component of the allowance for loan losses. Changes in the fair value measurement of risk participation agreements and watch list derivatives are largely due to changes in the fair value of the derivative, risk rating adjustments and fluctuations in the pertinent historic average loss rate. For the interest rate lock commitments on mortgage loans, the fair value is based on prices obtained for loans with similar characteristics from third-party sources, adjusted for the probability that the interest rate lock commitment will fund (the “pull-through” rate). The significant unobservable input that causes these derivatives to be classified in level 3 of the fair value hierarchy is the pull-through rate. Pull-through rates are derived using the Company’s historical data and reflect the Company’s best estimate of the likelihood that a committed loan will ultimately fund. Significant increases in this input in isolation would result in a significantly higher fair value measurement and significant decreases would result in a significantly lower fair value measurement. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following table presents the hierarchy level and fair value for each major category of assets and liabilities measured at fair value at June 30, 2015 , and December 31, 2014 on a recurring basis. Fair Value Measurements on a Recurring Basis (Amounts in thousands) June 30, 2015 December 31, 2014 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: Securities available-for sale: U.S. Treasury $ 268,895 $ — $ — $ 268,895 $ 268,265 $ — $ — $ 268,265 U.S. Agency — 46,423 — 46,423 — 46,258 — 46,258 Collateralized mortgage obligations — 117,097 — 117,097 — 136,933 — 136,933 Residential mortgage-backed securities — 853,363 — 853,363 — 846,078 — 846,078 State and municipal securities — 412,455 — 412,455 — 347,310 — 347,310 Foreign sovereign debt — — — — — 500 — 500 Total securities available-for-sale 268,895 1,429,338 — 1,698,233 268,265 1,377,079 — 1,645,344 Mortgage loans held-for-sale — 24,414 — 24,414 — 42,215 — 42,215 Derivative assets: Interest rate contract derivatives designated as hedging instruments — 5,817 — 5,817 — 4,542 — 4,542 Client-related derivatives — 50,978 683 51,661 — 46,669 1,412 48,081 Other end-user derivatives — 145 398 543 — 241 786 1,027 Netting adjustments — (10,448 ) (131 ) (10,579 ) — (9,952 ) (636 ) (10,588 ) Total derivative assets — 46,492 950 47,442 — 41,500 1,562 43,062 Total assets $ 268,895 $ 1,500,244 $ 950 $ 1,770,089 $ 268,265 $ 1,460,794 $ 1,562 $ 1,730,621 Liabilities: Derivative liabilities: Interest rate contract derivatives designated as hedging instruments $ — $ 1,284 $ — $ 1,284 $ — $ 2,715 $ — $ 2,715 Client-related derivatives — 51,700 172 51,872 — 47,799 676 48,475 Other end-user derivatives — 10 123 133 — 45 801 846 Netting adjustments — (28,462 ) (131 ) (28,593 ) — (24,633 ) (636 ) (25,269 ) Total derivative liabilities $ — $ 24,532 $ 164 $ 24,696 $ — $ 25,926 $ 841 $ 26,767 If a change in valuation techniques or input assumptions for an asset or liability occurred between periods, we would consider whether this would result in a transfer between the three levels of the fair value hierarchy. There have been no transfers of assets or liabilities between level 1 and level 2 of the valuation hierarchy between December 31, 2014 , and June 30, 2015 . There have been no other changes in the valuation techniques we used for assets and liabilities measured at fair value on a recurring basis from December 31, 2014 , to June 30, 2015 . Reconciliation of Beginning and Ending Fair Value for Those Fair Value Measurements Using Significant Unobservable Inputs (Level 3) (1) (Amounts in thousands) Three Months Ended June 30, 2015 2014 Derivative Assets Derivative (Liabilities) Derivative Assets Derivative (Liabilities) Balance at beginning of period $ 2,233 $ (1,239 ) $ 1,038 $ (735 ) Total gains: Included in earnings (2) (384 ) 153 329 181 Purchases, issuances, sales and settlements: Issuances 347 — 240 — Settlements (572 ) 340 (645 ) 28 Transfers into Level 3 (out of Level 2) (3) 284 — 1,752 (948 ) Transfers out of Level 3 (into Level 2) (3) (827 ) 451 (2 ) — Balance at end of period $ 1,081 $ (295 ) $ 2,712 $ (1,474 ) Change in unrealized gains in earnings relating to assets and liabilities still held at end of period $ (36 ) $ 193 $ 89 $ 313 Six Months Ended June 30, 2015 2014 Derivative Assets Derivative (Liabilities) Derivative Assets Derivative (Liabilities) Balance at beginning of period $ 2,198 $ (1,477 ) $ 789 $ (201 ) Total gains: Included in earnings (2) (242 ) 299 226 543 Purchases, issuances, sales and settlements: Issuances 505 — 412 — Settlements (1,363 ) 584 (1,180 ) (422 ) Transfers into Level 3 (out of Level 2) (3) 1,168 (160 ) 2,579 (1,394 ) Transfers out of Level 3 (into Level 2) (3) (1,185 ) 459 (114 ) — Balance at end of period $ 1,081 $ (295 ) $ 2,712 $ (1,474 ) Change in unrealized gains in earnings relating to assets and liabilities still held at end of period $ 490 $ (26 ) $ 66 $ 790 (1) Fair value is presented prior to giving effect to netting adjustments. (2) Amounts disclosed in this line are included in the Consolidated Statements of Income as capital markets products income for derivatives and mortgage banking income for interest rate lock commitments. (3) Transfers in and transfers out are recognized at the end of each quarterly reporting period. In general, derivative assets and liabilities are transferred into Level 3 from Level 2 due to a lack of observable market data, as there was deterioration in the credit risk of the derivative counterparty. Conversely, derivative assets and liabilities are transferred out of Level 3 into Level 2 due to an improvement in the credit risk of the derivative counterparty. Financial Instruments Recorded Using the Fair Value Option Difference Between Aggregate Fair Value and Aggregate Remaining Principal Balance for Mortgage Loans Held-For-Sale Elected to be Carried at Fair Value (Amounts in thousands) June 30, December 31, Aggregate fair value $ 24,414 $ 42,215 Difference (1) 271 (16 ) Aggregate unpaid principal balance $ 24,685 $ 42,199 (1) The change in fair value is reflected in mortgage banking non-interest income. As of June 30, 2015 and December 31, 2014 , none of the mortgage loans held-for-sale were on nonaccrual or 90 days or more past due and still accruing interest. Changes in fair value due to instrument-specific credit risk for the six months ended June 30, 2015 , were not material . Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis From time to time, we may be required to measure certain other financial assets at fair value on a nonrecurring basis. These adjustments to fair value usually result from the application of lower-of-cost-or-fair-value accounting or write-downs of individual assets when there is evidence of impairment. The following table provides the fair value of those assets that were subject to fair value adjustments during the second quarter 2015 and 2014 , and still held at June 30, 2015 and 2014 , respectively. All fair value measurements on a nonrecurring basis were measured using level 3 of the valuation hierarchy. Fair Value Measurements on a Nonrecurring Basis (Amounts in thousands) Fair Value Net (Gains) Losses June 30, For the Six Months Ended June 30, 2015 2014 2015 2014 Collateral-dependent impaired loans (1) $ 27,186 $ 31,482 $ (3,021 ) $ 12,391 OREO (2) 10,473 14,238 1,161 3,556 Total $ 37,659 $ 45,720 $ (1,860 ) $ 15,947 (1) Represents the fair value of loans adjusted to the appraised value of the collateral with a write-down in fair value or change in specific reserves during the respective period. These fair value adjustments are recorded against the allowance for loan losses. (2) Represents the fair value of foreclosed properties that were adjusted subsequent to their initial classification as foreclosed assets. Write-downs are recognized as a component of net foreclosed real estate expense in the Consolidated Statements of Income. There have been no changes in the valuation techniques we used for assets and liabilities measured at fair value on a nonrecurring basis from December 31, 2014 , to June 30, 2015 . Additional Information Regarding Level 3 Fair Value Measurements The following table presents information regarding the unobservable inputs developed by the Company for its level 3 fair value measurements. Quantitative Information Regarding Level 3 Fair Value Measurements (Dollars in thousands) Financial Instrument: Fair Value of Assets / (Liabilities) at June 30, 2015 Valuation Technique(s) Unobservable Input Range Weighted Average Watch list derivatives $ 537 Discounted cash flow Loss factors 7.2% to 16.6% 12.9 % Risk participation agreements $ (26 ) (1) Discounted cash flow Loss factors 0.6% to 16.6% 8.8 % Interest rate lock commitments $ (371 ) Discounted cash flow Pull-through rate 80.0% to 100.0% 81.1 % Collateral-dependent impaired loans $ 27,186 Sales comparison, Property specific -0.2% to -27.8% -8.4 % (2) OREO $ 10,473 Sales comparison, Property specific -1.0% to -18.8% -6.8 % (2) (1) Represents fair value of underlying swap. (2) Weighted average is calculated based on assets with a property specific adjustment. The significant unobservable inputs used in the fair value measurement of the risk participation agreements and watch list derivatives are the historic loss factors. A significant increase (decrease) in the pertinent loss factor would result in a significantly lower (higher) fair value measurement. Estimated Fair Value of Certain Financial Instruments U.S. GAAP requires disclosure of the estimated fair values of certain financial instruments, both assets and liabilities, on-and off-balance sheet, for which it is practical to estimate fair value. Because the disclosure of estimated fair values provided herein excludes the fair value of certain other financial instruments and all non-financial instruments, any aggregation of the estimated fair value amounts presented would not represent total underlying value. Examples of non-financial instruments having value not disclosed herein include the future earnings potential of significant customer relationships and the value of our asset management operations and other fee-generating businesses. In addition, other significant assets including property, plant, and equipment and goodwill are not considered financial instruments and, therefore, have not been included in the disclosure. Various methodologies and assumptions have been utilized in management’s determination of the estimated fair value of our financial instruments, which are detailed below. The fair value estimates are made at a discrete point in time based on relevant market information. Because no market exists for a significant portion of these financial instruments, fair value estimates are based on judgments regarding future expected economic conditions, loss experience, and risk characteristics of the financial instruments. These estimates are subjective, involve uncertainties, and cannot be determined with precision. Changes in assumptions could significantly affect the estimates. In addition to the valuation methodology explained above for financial instruments recorded at fair value, the following methods and assumptions were used in estimating the fair value of financial instruments that are carried at cost in the Consolidated Statements of Financial Condition and includes the general classification of the assets and liabilities pursuant to the valuation hierarchy. Short-term financial assets and liabilities – For financial instruments with a shorter-term or with no stated maturity, prevailing market rates, and limited credit risk, the carrying amounts approximate fair value. Those financial instruments include cash and due from banks, Federal funds sold and interest-bearing deposits in banks (including the receivable for cash collateral pledged), accrued interest receivable, and accrued interest payable. Accrued interest receivable and accrued interest payable are classified consistent with the hierarchy of their corresponding assets and liabilities. Other loans held-for-sale - Included in loans held-for sale at June 30, 2015 , and December 31, 2014 are $29.8 million and $36.6 million , respectively, of loans carried at the lower of aggregate cost or fair value. Also included in loans held-for-sale at December 31, 2014 , are $36.3 million of loans held-for-sale in connection with the sale of the Company's banking office located in Norcross, Georgia, which closed in January 2015. Fair value estimates are based on the actual agreed upon price in the agreement. Securities held-to-maturity – Securities held-to-maturity include collateralized mortgage obligations, residential mortgage-backed securities, commercial mortgage-backed securities and state and municipal securities. Substantially all held-to-maturity securities are fixed income instruments that are not quoted on an exchange, but may be traded in active markets. The fair value of these securities is based on quoted market prices obtained from external pricing services. The principal markets for our securities portfolio are the secondary institutional markets, with an exit price that is predominantly reflective of bid level pricing in those markets. FHLB stock – The carrying value of FHLB stock approximates fair value as the stock is non-marketable, but can only be sold to the FHLB or another member institution at par. Loans – The fair value of loans is calculated by discounting estimated cash flows through the estimated maturity using estimated market discount rates that reflect the credit and interest rate risk inherent in the loan. Cash flows are estimated by applying contractual payment terms to assumed interest rates. The estimate of maturity is based on contractual terms and includes assumptions that reflect our and the industry’s historical experience with repayments for each loan classification. The estimation is modified, as required, by the effect of current economic and lending conditions, collateral, and other factors. Covered assets – Covered assets include acquired loans and foreclosed loan collateral covered under a loss sharing agreement with the FDIC (including the fair value of expected reimbursements from the FDIC). The fair value of covered assets is calculated by discounting contractual cash flows through the estimated maturity using estimated market discount rates that reflect the credit and interest rate risk inherent in the asset. The estimate of maturity is based on contractual terms and includes assumptions that reflect our and the industry’s historical experience with repayments for each asset classification. The estimate is modified, as required, by the effect of current economic and lending conditions, collateral, and other factors. Investment in BOLI – The cash surrender value of our investment in bank owned life insurance approximates the fair value. Deposit liabilities – The fair values disclosed for noninterest-bearing deposits, savings deposits, interest-bearing demand deposits, and money market deposits are approximately equal to the amount payable on demand at the reporting date (i.e., their carrying amounts). The fair values for certificates of deposit and time deposits were estimated using present value techniques by discounting the future cash flows at rates based on internal models and broker quotes. Deposits held-for-sale – Deposits held-for-sale are recorded at the lower of cost or fair value. Amounts held at December 31, 2014 , are deposits held-for-sale in connection with the sale of the Company's banking office located in Norcross, Georgia, which closed in January 2015. Fair value estimates are based upon the price and premium per the agreement. Short-term borrowings – The fair value of FHLB advances with remaining maturities of one year or less is estimated by discounting the obligations using the rates currently offered for borrowings of similar remaining maturities. The fair value of the repurchase obligation is considered to be equal to the carrying value because of its short-term nature. The fair value of secured borrowings is equal to the value of the loans they are collateralizing. See " Loans " above for further information. The carrying amount of the obligation for cash collateral held is considered to be its fair value because of its short-term nature. Long-term debt – The fair value of the Company's fixed-rate long-term debt was estimated using the unadjusted publicly-available market price as of period end. FHLB advances with remaining maturities greater than one year and the Company's variable-rate junior subordinated debentures are estimated by discounting future cash flows. For the FHLB advances with remaining maturities greater than one year, the Company discounts cash flows using quoted interest rates for similar financial instruments. For the Company's variable-rate junior subordinated debentures, we interpolate a discount rate we believe is appropriate based on quoted interest rates and entity specific adjustments. Commitments – Given the limited interest rate risk posed by the commitments outstanding at period end due to their variable rate structure, termination clauses provided in the agreements, and the market rate of fees charged, we have deemed the fair value of commitments outstanding to be immaterial. Financial Instruments (Amounts in thousands) As of June 30, 2015 Carrying Amount Fair Value Measurements Using Fair Value Level 1 Level 2 Level 3 Financial Assets: Cash and due from banks $ 185,983 $ 185,983 $ 185,983 $ — $ — Federal funds sold and interest-bearing deposits in banks 192,531 192,531 — 192,531 — Loans held-for-sale 54,263 54,263 — 54,263 — Securities available-for-sale 1,698,233 1,698,233 268,895 1,429,338 — Securities held-to-maturity 1,199,120 1,198,460 — 1,198,460 — FHLB stock 25,854 25,854 — 25,854 — Loans, net of allowance for loan losses and unearned fees 12,386,230 12,351,635 — — 12,351,635 Covered assets, net of allowance for covered loan losses 24,197 30,408 — — 30,408 Accrued interest receivable 43,442 43,442 — — 43,442 Investment in BOLI 55,926 55,926 — — 55,926 Derivative assets 47,442 47,442 — 46,492 950 Financial Liabilities: Deposits $ 13,388,936 $ 13,396,155 $ — $ 10,998,935 $ 2,397,220 Short-term borrowings 434,695 434,118 — 427,847 6,271 Long-term debt 694,788 670,526 205,200 398,967 66,359 Accrued interest payable 7,543 7,543 — — 7,543 Derivative liabilities 24,696 24,696 — 24,532 164 Financial Instruments (Continued) (Amounts in thousands) As of December 31, 2014 Carrying Amount Fair Value Measurements Using Fair Value Level 1 Level 2 Level 3 Financial Assets: Cash and due from banks $ 132,211 $ 132,211 $ 132,211 $ — $ — Federal funds sold and interest-bearing deposits in banks 292,341 292,341 — 292,341 — Loans held-for-sale 115,161 115,161 — 115,161 — Securities availa

OPERATING SEGMENTS

OPERATING SEGMENTS	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
OPERATING SEGMENTS	OPERATING SEGMENTS We have three primary operating segments: Banking, Asset Management and the Holding Company. With respect to the Banking and Asset Management segments, each is delineated by the products and services that it offers. The Banking operating segment is comprised of commercial and personal banking services, including mortgage originations. Commercial banking services are primarily provided to corporations and other business clients and include a wide array of lending and cash management products. Personal banking services offered to individuals, professionals, and entrepreneurs include direct lending and depository services. The Asset Management segment includes certain activities of our PrivateWealth group, including investment management, personal trust and estate administration, custodial and escrow, retirement plans and brokerage services. The activities of the third operating segment, the Holding Company, include the direct and indirect ownership of our banking subsidiary, the issuance of debt and intersegment eliminations. The accounting policies of the individual operating segments are the same as those of the Company as described in Note 1 , "Summary of Significant Accounting Policies," to the Notes to Consolidated Financial Statements of our 2014 Annual Report on Form 10-K . Transactions between operating segments are primarily conducted at fair value, resulting in profits that are eliminated from consolidated results of operations. Financial results for each segment are presented below. For segment reporting purposes, the statement of financial condition of Asset Management is included with the Banking segment. Operating Segments Performance (Amounts in thousands) Three Months Ended June 30, Banking Asset Management Holding Company and Other Adjustments Consolidated 2015 2014 2015 2014 2015 2014 2015 2014 Net interest income (loss) $ 129,121 $ 118,755 $ 1,104 $ 987 $ (5,603 ) $ (7,391 ) $ 124,622 $ 112,351 Provision for loan and covered loan losses 2,116 327 — — — — 2,116 327 Non-interest income 28,273 25,804 4,771 4,440 15 15 33,059 30,259 Non-interest expense 74,756 68,520 4,513 4,332 2,628 2,613 81,897 75,465 Income (loss) before taxes 80,522 75,712 1,362 1,095 (8,216 ) (9,989 ) 73,668 66,818 Income tax provision (benefit) 29,951 29,330 524 431 (3,229 ) (3,767 ) 27,246 25,994 Net income (loss) $ 50,571 $ 46,382 $ 838 $ 664 $ (4,987 ) $ (6,222 ) $ 46,422 $ 40,824 Six Months Ended June 30, Banking Asset Management Holding Company Consolidated 2015 2014 2015 2014 2015 2014 2015 2014 Net interest income (loss) $ 255,619 $ 233,907 $ 2,003 $ 1,774 $ (11,007 ) $ (14,578 ) $ 246,615 $ 221,103 Provision for loan and covered loan losses 7,762 4,034 — — — — 7,762 4,034 Non-interest income 57,411 47,676 9,134 8,789 30 30 66,575 56,495 Non-interest expense 150,691 137,180 8,825 8,408 5,526 5,627 165,042 151,215 Income (loss) before taxes 154,577 140,369 2,312 2,155 (16,503 ) (20,175 ) 140,386 122,349 Income tax provision (benefit) 57,888 53,983 898 849 (6,306 ) (7,812 ) 52,480 47,020 Net income (loss) $ 96,689 $ 86,386 $ 1,414 $ 1,306 $ (10,197 ) $ (12,363 ) $ 87,906 $ 75,329 Banking Holding Company and Other Adjustments (1) Consolidated 6/30/2015 12/31/2014 6/30/2015 12/31/2014 6/30/2015 12/31/2014 Selected Balances Assets $ 14,395,309 $ 13,882,805 $ 1,830,586 $ 1,720,577 $ 16,225,895 $ 15,603,382 Total loans 12,543,281 11,892,219 — — 12,543,281 11,892,219 Deposits, excluding deposits held-for-sale 13,442,839 13,150,600 (53,903 ) (60,632 ) 13,388,936 13,089,968 (1) Deposit amounts represent the elimination of Holding Company cash accounts included in total deposits of the Banking segment.

VARIABLE INTEREST ENTITIES

VARIABLE INTEREST ENTITIES	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
VARIABLE INTEREST ENTITIES	VARIABLE INTEREST ENTITIES At June 30, 2015 , and December 31, 2014 , the Company did not have any variable interest entities ("VIEs") consolidated in its financial statements. The table below presents our interests in VIEs that are not consolidated in our financial statements. Nonconsolidated VIEs (Amounts in thousands) June 30, 2015 December 31, 2014 Carrying Amount Maximum Exposure to Loss Carrying Amount Maximum Exposure to Loss Trust preferred capital securities issuances $ 169,788 $ — $ 169,788 $ — Community reinvestment investments 10,887 12,581 14,360 16,054 Restructured loans to commercial clients (1) : Outstanding loan balance 53,213 67,219 49,376 57,782 Related derivative asset 37 37 6,533 6,533 Total $ 233,925 $ 79,837 $ 240,057 $ 80,369 (1) Excludes personal loans and loans to non-for-profit entities. Trust preferred capital securities issuances – As discussed in Note 9 , we sponsor and wholly own 100% of the common equity of four trusts that were formed for the purpose of issuing trust preferred securities to third-party investors and investing the proceeds from the sale of the trust preferred securities solely in debentures issued by the Company. The trusts’ only assets are the principal balance of the Debentures and the related interest receivable, which are included within long-term debt in our Consolidated Statements of Financial Condition. The Company is not the primary beneficiary of the trusts and accordingly, the trusts are not consolidated in our financial statements. Community reinvestment investments – We hold certain investments in funds that make investments to further our community reinvestment initiatives. Such investments are included within other assets in our Consolidated Statements of Financial Condition. Certain of these investments meet the definition of a VIE, but the Company is not the primary beneficiary as we are a limited investor in those investment funds and do not have the power to direct their investment activities. Accordingly, we will continue to account for our interests in these investments on an unconsolidated basis. Our maximum exposure to loss is limited to the carrying amount plus additional required future capital contributions. A portion of our community reinvestment investments are investments in limited liability entities that invest in affordable housing projects that qualify for low-income housing tax credits. These investments entitle the Company to tax credits through 2031 . Any new investments in qualified affordable housing projects entered into on or after January 1, 2014, that meet certain conditions are accounted for using the proportional amortization method. Prior to January 1, 2014, the Company accounted for all of its investments in qualified affordable housing projects using the effective yield method and has elected to continue accounting for preexisting tax credit investments using the effective yield method as permitted under the accounting standards. The carrying value of the Company’s tax credit investments in affordable housing projects totaled $9.7 million and $10.0 million as of June 30, 2015 , and December 31, 2014 , respectively. The Company recognizes tax credits related to these investments, tax benefits from the operating losses generated by these investments, and amortization of the principal investment balances, all of which were immaterial during each of the six months ended June 30, 2015 and 2014 . Commitments to provide future capital contributions totaling $8.3 million as of June 30, 2015 , are expected to be paid through 2029 . These investments are reviewed periodically for impairment. No impairment losses were recorded for the six months ended June 30, 2015 and 2014 . Restructured loans – For certain troubled commercial loans, we restructure the terms of the borrower’s debt in an effort to increase the probability of collecting amounts contractually due. Following a restructuring, the borrower entity typically meets the definition of a VIE, and economic events have proven that the entity’s equity is not sufficient to permit it to finance its activities without additional subordinated financial support or a restructuring of the terms of its financing. As we do not have the power to direct the activities that most significantly impact such troubled commercial borrowers’ operations, we are not considered the primary beneficiary even in situations where, based on the size of the financing provided, we are exposed to potentially significant benefits and losses of the borrowing entity. We have no contractual requirements to provide financial support to the borrowing entities beyond certain funding commitments established upon restructuring of the terms of the debt. Our interests in the troubled commercial borrowers include outstanding loans and related derivative assets. Our maximum exposure to loss is limited to these interests plus any additional future funding commitments.

SECURITIES (Tables)

SECURITIES (Tables)	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
Securities Portfolio	Securities Portfolio (Amounts in thousands) June 30, 2015 December 31, 2014 Amortized Cost Gross Unrealized Fair Value Amortized Cost Gross Unrealized Fair Value Gains Losses Gains Losses Securities Available-for-Sale U.S. Treasury $ 268,306 $ 916 $ (327 ) $ 268,895 $ 269,697 $ 120 $ (1,552 ) $ 268,265 U.S. Agency 46,733 — (310 ) 46,423 46,959 — (701 ) 46,258 Collateralized mortgage obligations 113,215 3,913 (31 ) 117,097 132,633 4,334 (34 ) 136,933 Residential mortgage-backed securities 835,105 20,797 (2,539 ) 853,363 822,746 25,058 (1,726 ) 846,078 State and municipal securities 408,815 5,924 (2,284 ) 412,455 340,810 7,222 (722 ) 347,310 Foreign sovereign debt — — — — 500 — — 500 Total $ 1,672,174 $ 31,550 $ (5,491 ) $ 1,698,233 $ 1,613,345 $ 36,734 $ (4,735 ) $ 1,645,344 Securities Held-to-Maturity Collateralized mortgage obligations $ 56,341 $ — $ (1,851 ) $ 54,490 $ 59,960 $ — $ (2,017 ) $ 57,943 Residential mortgage-backed securities 928,158 6,408 (4,163 ) 930,403 885,235 9,410 (2,483 ) 892,162 Commercial mortgage-backed securities 209,010 802 (1,855 ) 207,957 183,021 592 (2,176 ) 181,437 State and municipal securities 1,069 5 — 1,074 1,069 4 — 1,073 Other securities 4,542 — (6 ) 4,536 — — — — Total $ 1,199,120 $ 7,215 $ (7,875 ) $ 1,198,460 $ 1,129,285 $ 10,006 $ (6,676 ) $ 1,132,615
Securities in Unrealized Loss Position	Securities in Unrealized Loss Position (Amounts in thousands) Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses As of June 30, 2015 Securities Available-for-Sale U.S. Treasury $ 25,088 $ (131 ) $ 52,133 $ (196 ) $ 77,221 $ (327 ) U.S. Agency 46,422 (310 ) — — 46,422 (310 ) Collateralized mortgage obligations 5,351 (31 ) — — 5,351 (31 ) Residential mortgage-backed securities 74,797 (473 ) 82,475 (2,066 ) 157,272 (2,539 ) State and municipal securities 175,983 (2,223 ) 3,808 (61 ) 179,791 (2,284 ) Total $ 327,641 $ (3,168 ) $ 138,416 $ (2,323 ) $ 466,057 $ (5,491 ) Securities Held-to-Maturity Collateralized mortgage obligations $ — $ — $ 54,490 $ (1,851 ) $ 54,490 $ (1,851 ) Residential mortgage-backed securities 296,725 (2,713 ) 61,379 (1,450 ) 358,104 (4,163 ) Commercial mortgage-backed securities 85,963 (1,171 ) 48,926 (684 ) 134,889 (1,855 ) Other securities 4,536 (6 ) — — 4,536 (6 ) Total $ 387,224 $ (3,890 ) $ 164,795 $ (3,985 ) $ 552,019 $ (7,875 ) As of December 31, 2014 Securities Available-for-Sale U.S. Treasury $ 119,233 $ (159 ) $ 123,117 $ (1,393 ) $ 242,350 $ (1,552 ) U.S. Agency — — 46,258 (701 ) 46,258 (701 ) Collateralized mortgage obligations 4,565 (34 ) — — 4,565 (34 ) Residential mortgage-backed securities — — 89,085 (1,726 ) 89,085 (1,726 ) State and municipal securities 53,092 (249 ) 32,152 (473 ) 85,244 (722 ) Total $ 176,890 $ (442 ) $ 290,612 $ (4,293 ) $ 467,502 $ (4,735 ) Securities Held-to-Maturity Collateralized mortgage obligations $ — $ — $ 57,943 $ (2,017 ) $ 57,943 $ (2,017 ) Residential mortgage-backed securities 45,867 (38 ) 162,564 (2,445 ) 208,431 (2,483 ) Commercial mortgage-backed securities 10,021 (28 ) 105,709 (2,148 ) 115,730 (2,176 ) Total $ 55,888 $ (66 ) $ 326,216 $ (6,610 ) $ 382,104 $ (6,676 )
Remaining Contractual Maturity of Securities	Remaining Contractual Maturity of Securities (Amounts in thousands) June 30, 2015 Available-For-Sale Securities Held-To-Maturity Securities Amortized Cost Fair Value Amortized Cost Fair Value U.S. Treasury, U.S. Agency, state and municipal and other securities: One year or less $ 8,200 $ 8,314 $ 816 $ 817 One year to five years 480,331 484,045 253 257 Five years to ten years 220,417 220,633 4,542 4,536 After ten years 14,906 14,781 — — All other securities: Collateralized mortgage obligations 113,215 117,097 56,341 54,490 Residential mortgage-backed securities 835,105 853,363 928,158 930,403 Commercial mortgage-backed securities — — 209,010 207,957 Total $ 1,672,174 $ 1,698,233 $ 1,199,120 $ 1,198,460
Securities Gains (Losses)	Securities Gains (Losses) (Amounts in thousands) Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Proceeds from sales $ 1,415 $ 26,172 $ 30,346 $ 73,649 Gross realized gains $ 19 $ 213 $ 557 $ 610 Gross realized losses (20 ) (17 ) (24 ) (83 ) Net realized (losses) gains $ (1 ) $ 196 $ 533 $ 527 Income tax provision on net realized gains $ — $ 77 $ 210 $ 208

LOANS AND CREDIT QUALITY (Table

LOANS AND CREDIT QUALITY (Tables)		6 Months Ended
		Jun. 30, 2015
Text Block [Abstract]
Loan Portfolio		Loan Portfolio (Amounts in thousands) June 30, December 31, Commercial and industrial $ 6,397,736 $ 5,996,070 Commercial - owner-occupied CRE 2,048,489 1,892,564 Total commercial 8,446,225 7,888,634 Commercial real estate 2,432,608 2,323,616 Commercial real estate - multi-family 561,924 593,103 Total commercial real estate 2,994,532 2,916,719 Construction 371,096 381,102 Residential real estate 415,826 361,565 Home equity 137,461 142,177 Personal 178,141 202,022 Total loans $ 12,543,281 $ 11,892,219 Net deferred loan fees and unamortized discount and premium on loans, included as a reduction in total loans $ 45,138 $ 47,017 Overdrawn demand deposits included in total loans $ 1,149 $ 1,963
Loans Held-for-sale		Loans Held-For-Sale (Amounts in thousands) June 30, December 31, Mortgage loans held-for-sale (1) $ 24,414 $ 42,215 Other loans held-for-sale (2) 29,849 72,946 Total loans held-for-sale $ 54,263 $ 115,161 (1) Comprised of residential mortgage loan originations intended to be sold in the secondary market. The Company accounts for these loans under the fair value option. Refer to Note 16 for additional information regarding mortgage loans held-for-sale. (2) Amounts at June 30, 2015 , represent commercial and commercial real estate loans carried at the lower of aggregate cost or fair value. Generally, the Company intends to sell these loans within 30-60 days from the date the intent to sell was established. Amounts at December 31, 2014 , consist of $36.6 million of commercial, commercial real estate and construction loans carried at the lower of aggregate cost or fair value and $36.3 million of commercial, commercial real estate, construction, home equity and personal loans held-for-sale in connection with the sale of the Company's banking office located in Norcross, Georgia, which closed in January 2015.
Carrying Value Of Loans Pledged		Carrying Value of Loans Pledged (Amounts in thousands) June 30, December 31, Loans pledged to secure outstanding borrowings or availability: FRB discount window borrowings (1) $ 431,488 $ 478,692 FHLB advances (2) 1,845,935 1,576,168 Total $ 2,277,423 $ 2,054,860 (1) No borrowings were outstanding at June 30, 2015 , or December 31, 2014 . (2) Refer to Notes 7 and 8 for additional information regarding FHLB advances.
Loan Portfolio Aging	[1]	Loan Portfolio Aging (Amounts in thousands) Delinquent Current 30 – 59 Days Past Due 60 – 89 Days Past Due 90 Days Past Due and Accruing Total Accruing Loans Nonaccrual Total Loans As of June 30, 2015 Commercial $ 8,416,607 $ 1,561 $ 212 $ — $ 8,418,380 $ 27,845 $ 8,446,225 Commercial real estate 2,981,091 — — — 2,981,091 13,441 2,994,532 Construction 371,096 — — — 371,096 — 371,096 Residential real estate 411,251 — 459 — 411,710 4,116 415,826 Home equity 125,741 572 — — 126,313 11,148 137,461 Personal 178,098 18 1 — 178,117 24 178,141 Total loans $ 12,483,884 $ 2,151 $ 672 $ — $ 12,486,707 $ 56,574 $ 12,543,281 As of December 31, 2014 Commercial $ 7,855,833 $ 762 $ 992 $ — $ 7,857,587 $ 31,047 $ 7,888,634 Commercial real estate 2,891,301 5,408 261 — 2,896,970 19,749 2,916,719 Construction 380,939 163 — — 381,102 — 381,102 Residential real estate 354,717 943 631 — 356,291 5,274 361,565 Home equity 128,500 397 2,236 — 131,133 11,044 142,177 Personal 201,569 23 — — 201,592 430 202,022 Total loans $ 11,812,859 $ 7,696 $ 4,120 $ — $ 11,824,675 $ 67,544 $ 11,892,219
Impaired Loans		Impaired Loans (Amounts in thousands) Unpaid Contractual Principal Balance Recorded Investment With No Specific Reserve Recorded Investment With Specific Reserve Total Recorded Investment Specific Reserve As of June 30, 2015 Commercial $ 74,657 $ 49,519 $ 13,258 $ 62,777 $ 2,889 Commercial real estate 19,925 3,824 9,617 13,441 2,102 Residential real estate 4,484 — 4,116 4,116 606 Home equity 13,566 3,985 8,917 12,902 1,865 Personal 24 — 24 24 6 Total impaired loans $ 112,656 $ 57,328 $ 35,932 $ 93,260 $ 7,468 As of December 31, 2014 Commercial $ 60,174 $ 25,739 $ 26,432 $ 52,171 $ 11,487 Commercial real estate 26,738 9,755 10,193 19,948 2,441 Residential real estate 5,849 349 4,925 5,274 735 Home equity 12,904 3,627 8,839 12,466 1,855 Personal 430 — 430 430 109 Total impaired loans $ 106,095 $ 39,470 $ 50,819 $ 90,289 $ 16,627
Average Recorded Investment And Interest Income Recognized On Impaired Loans	[1]	Average Recorded Investment and Interest Income Recognized on Impaired Loans (1) (Amounts in thousands) Three Months Ended June 30, 2015 2014 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Commercial $ 59,380 $ 316 $ 55,534 $ 419 Commercial real estate 14,823 10 36,960 20 Residential real estate 4,454 — 9,481 — Home equity 12,714 24 12,614 21 Personal 248 — 599 — Total $ 91,619 $ 350 $ 115,188 $ 460 (1) Represents amounts while classified as impaired for the periods presented. Average Recorded Investment and Interest Income Recognized on Impaired Loans (1) (Continued) (Amounts in thousands) Six Months Ended June 30, 2015 2014 Average Interest Average Interest Commercial $ 55,791 $ 500 $ 48,935 $ 801 Commercial real estate 16,359 13 41,617 44 Residential real estate 4,676 — 9,700 — Home equity 13,094 46 13,018 45 Personal 300 — 632 — Total $ 90,220 $ 559 $ 113,902 $ 890 (1) Represents amounts while classified as impaired for the periods presented.
Credit Quality Indicators	[1]	Credit Quality Indicators (Dollars in thousands) Special Mention % of Portfolio Loan Type Potential Problem Loans % of Portfolio Loan Type Non- Performing Loans % of Portfolio Loan Type Total Loans As of June 30, 2015 Commercial $ 124,689 1.5 $ 125,948 1.5 $ 27,845 0.3 $ 8,446,225 Commercial real estate 83 * 2,614 0.1 13,441 0.4 2,994,532 Construction — — — — — — 371,096 Residential real estate 6,148 1.5 6,533 1.6 4,116 1.0 415,826 Home equity 806 0.6 2,618 1.9 11,148 8.1 137,461 Personal 715 0.4 44 * 24 * 178,141 Total $ 132,441 1.1 $ 137,757 1.1 $ 56,574 0.5 $ 12,543,281 As of December 31, 2014 Commercial $ 93,130 1.2 $ 78,562 1.0 $ 31,047 0.4 $ 7,888,634 Commercial real estate 3,552 0.1 746 * 19,749 0.7 2,916,719 Construction — — — — — — 381,102 Residential real estate 2,964 0.8 5,981 1.7 5,274 1.5 361,565 Home equity 1,170 0.8 2,108 1.5 11,044 7.8 142,177 Personal 173 0.1 45 * 430 0.2 202,022 Total $ 100,989 0.8 $ 87,442 0.7 $ 67,544 0.6 $ 11,892,219 * Less than 0.1%
Troubled Debt Restructured Loans Outstanding		Troubled Debt Restructured Loans Outstanding (Amounts in thousands) June 30, 2015 December 31, 2014 Accruing Nonaccrual (1) Accruing Nonaccrual (1) Commercial $ 34,932 $ 7,944 $ 21,124 $ 20,113 Commercial real estate — 10,638 199 8,005 Residential real estate — 1,325 — 1,881 Home equity 1,754 5,832 1,422 5,886 Personal — — — 413 Total $ 36,686 $ 25,739 $ 22,745 $ 36,298 (1) Included in nonperforming loans.
Additions To TDR During The Period		Additions to Accruing Troubled Debt Restructurings During the Period (Dollars in thousands) Three Months Ended June 30, 2015 2014 Number of Borrowers Recorded Investment (1) Number of Borrowers Recorded Investment (1) Pre- Modification Post- Modification Pre- Modification Post- Modification Commercial Extension of maturity date (2) 4 $ 13,415 $ 13,134 1 $ 3,550 $ 3,550 Other concession (3) — — — 1 2,638 2,638 Total commercial 4 13,415 13,134 2 6,188 6,188 Home equity Extension of maturity date (2) 1 346 346 — — — Total accruing 5 $ 13,761 $ 13,480 2 $ 6,188 $ 6,188 Change in recorded investment due to principal paydown at time of modification $ 281 $ — Six Months Ended June 30, 2015 2014 Recorded Investment (1) Recorded Investment (1) Number of Borrowers Pre- Modification Post- Modification Number of Borrowers Pre- Modification Post- Modification Commercial Extension of maturity date (2) 5 $ 15,809 $ 15,528 2 $ 3,750 $ 3,750 Other concession (3) — — — 2 15,579 15,579 Total commercial 5 15,809 15,528 4 19,329 19,329 Commercial real estate Other concession (3) — — — 1 426 426 Home equity Extension of maturity date (2) 1 346 346 — — — Total accruing 6 $ 16,155 $ 15,874 5 $ 19,755 $ 19,755 Change in recorded investment due to principal paydown at time of modification $ 281 $ — (1) Represents amounts as of the date immediately prior to and immediately after the modification is effective. (2) Extension of maturity date also includes loans renewed at an existing rate of interest that is considered a below market rate for that particular loan’s risk profile. (3) Other concessions primarily include interest rate reductions, loan increases or deferrals of principal. Additions to Nonaccrual Troubled Debt Restructurings During the Period (Dollars in thousands) Three Months Ended June 30, 2015 2014 Number of Borrowers Recorded Investment (1) Number of Borrowers Recorded Investment (1) Pre- Modification Post- Modification Pre- Modification Post- Modification Commercial Extension of maturity date (2) 4 $ 2,583 $ 2,583 — $ — $ — Other concession (3) 1 2,107 2,107 2 97 97 Total commercial 5 4,690 4,690 2 97 97 Commercial real estate Other concession (3) — — — 1 1,120 1,120 Residential real estate Other concession (3) — — — 1 70 70 Home equity Extension of maturity date (2) 3 170 165 — — — Other concession (3) — — — 2 865 865 Total home equity 3 170 165 2 865 865 Total nonaccrual 8 $ 4,860 $ 4,855 6 $ 2,152 $ 2,152 Change in recorded investment due to principal paydown at time of modification $ 5 $ — Six Months Ended June 30, 2015 2014 Recorded Investment (1) Recorded Investment (1) Number of Pre- Post- Number of Pre- Post- Commercial Extension of maturity date (2) 4 $ 2,583 $ 2,583 — $ — $ — Other concession (3) 2 2,780 2,773 4 553 503 Total commercial 6 5,363 5,356 4 553 503 Commercial real estate Extension of maturity date (2) 2 1,747 1,660 — — — Other concession (3) 1 3,773 3,773 1 1,120 1,120 Total commercial real estate 3 5,520 5,433 1 1,120 1,120 Residential real estate Other concession (3) — — — 3 565 565 Home equity Extension of maturity date (2) 3 170 165 1 114 114 Other concession (3) 2 77 77 3 1,115 1,115 Total home equity 5 247 242 4 1,229 1,229 Total nonaccrual 14 $ 11,130 $ 11,031 12 $ 3,467 $ 3,417 Net decrease in recorded investment at time of modification $ 99 $ 50 (1) Represents amounts as of the date immediately prior to and immediately after the modification is effective. (2) Extension of maturity date also includes loans renewed at an existing rate of interest that is considered a below market rate for that particular loan’s risk profile. (3) Other concessions primarily include interest rate reductions, loan increases or deferrals of principal.
OREO Composition		OREO Composition (Amounts in thousands) June 30, 2015 December 31, 2014 Single-family homes $ 7,494 $ 7,902 Land parcels 3,807 4,237 Multi-family 1,026 488 Office/industrial 1,734 3,832 Retail 1,023 957 Total OREO properties $ 15,084 $ 17,416
Covered Assets		Covered Assets (Amounts in thousands) June 30, 2015 December 31, 2014 Residential mortgage loans (1) $ 28,259 $ 32,182 Foreclosed real estate - single family homes 159 187 Estimated loss reimbursement by the FDIC 2,111 1,763 Total covered assets 30,529 34,132 Allowance for covered loan losses (6,332 ) (5,191 ) Net covered assets $ 24,197 $ 28,941 (1) Includes $264,000 and $420,000 of purchased credit-impaired loans as of June 30, 2015 , and December 31, 2014 , respectively.
[1]	Extension of maturity date also includes loans renewed at an existing rate of interest that is considered a below market rate for that particular loan’s risk profile.

ALLOWANCE FOR LOAN LOSSES AND28

ALLOWANCE FOR LOAN LOSSES AND RESERVE FOR UNFUNDED COMMITMENTS (Tables)		6 Months Ended
		Jun. 30, 2015
Text Block [Abstract]
Allowance For Loan Losses and Recorded Investment in Loans	[1]	Allowance for Loan Losses and Recorded Investment in Loans (Amounts in thousands) Three Months Ended June 30, 2015 Commercial Commercial Real Estate Construction Residential Real Estate Home Equity Personal Total Allowance for Loan Losses: Balance at beginning of period $ 108,873 $ 31,606 $ 4,026 $ 5,223 $ 4,588 $ 2,294 $ 156,610 Loans charged-off (2,921 ) (98 ) — (194 ) — (28 ) (3,241 ) Recoveries on loans previously charged-off 984 272 164 47 73 86 1,626 Net (charge-offs) recoveries (1,937 ) 174 164 (147 ) 73 58 (1,615 ) Provision (release) for loan losses 6,208 (3,570 ) (374 ) 181 (46 ) (343 ) 2,056 Balance at end of period $ 113,144 $ 28,210 $ 3,816 $ 5,257 $ 4,615 $ 2,009 $ 157,051 Ending balance for loans individually evaluated for impairment (1) $ 2,889 $ 2,102 $ — $ 606 $ 1,865 $ 6 $ 7,468 Ending balance for loans collectively evaluated for impairment $ 110,255 $ 26,108 $ 3,816 $ 4,651 $ 2,750 $ 2,003 $ 149,583 Recorded Investment in Loans: Ending balance, loans individually evaluated for impairment (1) $ 62,777 $ 13,441 $ — $ 4,116 $ 12,902 $ 24 $ 93,260 Ending balance, loans collectively evaluated for impairment 8,383,448 2,981,091 371,096 411,710 124,559 178,117 12,450,021 Total recorded investment in loans $ 8,446,225 $ 2,994,532 $ 371,096 $ 415,826 $ 137,461 $ 178,141 $ 12,543,281 (1) Refer to Note 4 for additional information regarding impaired loans. Allowance for Loan Losses and Recorded Investment in Loans (Continued) (Amounts in thousands) Three Months Ended June 30, 2014 Commercial Commercial Real Estate Construction Residential Real Estate Home Equity Personal Total Allowance for Loan Losses: Balance at beginning of period $ 90,080 $ 37,575 $ 3,547 $ 6,978 $ 5,500 $ 3,088 $ 146,768 Loans charged-off (2,142 ) (2,082 ) — (180 ) (268 ) (13 ) (4,685 ) Recoveries on loans previously charged-off 813 1,360 9 135 60 20 2,397 Net (charge-offs) recoveries (1,329 ) (722 ) 9 (45 ) (208 ) 7 (2,288 ) Provision (release) for loan losses 7,575 (3,554 ) 65 (1,653 ) (277 ) (145 ) 2,011 Balance at end of period $ 96,326 $ 33,299 $ 3,621 $ 5,280 $ 5,015 $ 2,950 $ 146,491 Ending balance for loans individually evaluated for impairment (1) $ 11,113 $ 4,879 $ — $ 630 $ 1,715 $ 150 $ 18,487 Ending balance for loans collectively evaluated for impairment $ 85,213 $ 28,420 $ 3,621 $ 4,650 $ 3,300 $ 2,800 $ 128,004 Recorded Investment in Loans: Ending balance, loans individually evaluated for impairment (1) $ 64,851 $ 23,173 $ — $ 9,337 $ 11,630 $ 580 $ 109,571 Ending balance, loans collectively evaluated for impairment 7,506,435 2,495,954 360,313 327,992 132,451 204,226 11,027,371 Total recorded investment in loans $ 7,571,286 $ 2,519,127 $ 360,313 $ 337,329 $ 144,081 $ 204,806 $ 11,136,942 (1) Refer to Note 4 for additional information regarding impaired loans. Allowance for Loan Losses (Continued) (Amounts in thousands) Six Months Ended June 30, Commercial Commercial Real Estate Construction Residential Real Estate Home Equity Personal Total 2015 Balance at beginning of year $ 103,462 $ 31,838 $ 4,290 $ 5,316 $ 4,924 $ 2,668 $ 152,498 Loans charged-off (5,123 ) (985 ) — (231 ) (371 ) (38 ) (6,748 ) Recoveries on loans previously charged-off 1,495 870 183 104 143 959 3,754 Net (charge-offs) recoveries (3,628 ) (115 ) 183 (127 ) (228 ) 921 (2,994 ) Provision (release) for loan losses 13,310 (3,513 ) (657 ) 68 (81 ) (1,580 ) 7,547 Balance at end of period $ 113,144 $ 28,210 $ 3,816 $ 5,257 $ 4,615 $ 2,009 $ 157,051 2014 Balance at beginning of year $ 80,768 $ 42,362 $ 3,338 $ 7,555 $ 5,648 $ 3,438 $ 143,109 Loans charged-off (3,629 ) (4,664 ) — (415 ) (715 ) (143 ) (9,566 ) Recoveries on loans previously charged-off 4,475 2,048 16 435 88 426 7,488 Net recoveries (charge-offs) 846 (2,616 ) 16 20 (627 ) 283 (2,078 ) Provision (release) for loan losses 14,712 (6,447 ) 267 (2,295 ) (6 ) (771 ) 5,460 Balance at end of period $ 96,326 $ 33,299 $ 3,621 $ 5,280 $ 5,015 $ 2,950 $ 146,491
Reserve For Unfunded Commitments	[1]	Reserve for Unfunded Commitments (1) (Amounts in thousands) Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Balance at beginning of period $ 12,650 $ 9,702 $ 12,274 $ 9,206 Provision (release) for unfunded commitments 507 (339 ) 883 157 Balance at end of period $ 13,157 $ 9,363 $ 13,157 $ 9,363 Unfunded commitments, excluding covered assets, at period end $ 6,135,242 $ 4,957,324 (1) Unfunded commitments include commitments to extend credit, standby letters of credit and commercial letters of credit. Unfunded commitments related to covered assets are excluded as they are covered under a loss sharing agreement with the FDIC.
[1]	Refer to Note 4 for additional information regarding impaired loans.

GOODWILL AND OTHER INTANGIBLE29

GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
Carrying Amount Of Goodwill By Operating Segment	Carrying Amount of Goodwill by Operating Segment (Amounts in thousands) June 30, December 31, 2014 Banking $ 81,755 $ 81,755 Asset management 12,286 12,286 Total goodwill $ 94,041 $ 94,041
Other Intangible Assets	Other Intangible Assets (Dollars in thousands) Six Months Ended June 30, 2015 Year Ended December 31, 2014 Core deposit intangibles: Gross carrying amount $ 18,093 $ 18,093 Accumulated amortization 14,066 12,870 Net carrying amount $ 4,027 $ 5,223 Amortization during the period $ 1,196 $ 2,799 Weighted average remaining life (in years) 2 2 Client relationships: Gross carrying amount $ 2,002 $ 2,002 Accumulated amortization 1,443 1,340 Net carrying amount $ 559 $ 662 Amortization during the period $ 103 $ 208 Weighted average remaining life (in years) 6 6
Scheduled Amortization Of Other Intangible Assets	Scheduled Amortization of Other Intangible Assets (Amounts in thousands) Total Year ending December 31, 2015 - remaining six months $ 1,156 2016 2,161 2017 1,125 2018 98 2019 28 2020 and thereafter 18 Total $ 4,586

SHORT-TERM BORROWINGS (Tables)

SHORT-TERM BORROWINGS (Tables)	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
Summary Of Short-Term Borrowings	Summary of Short-Term Borrowings (Dollars in thousands) June 30, 2015 December 31, 2014 Amount Rate Amount Rate Outstanding: Repurchase agreements $ 150,801 0.45 % $ — — % FHLB advances 277,000 0.16 % 428,000 0.13 % Secured borrowings 6,894 4.05 % 4,385 4.45 % Total short-term borrowings $ 434,695 $ 432,385 Other Information: Unused FHLB advances availability $ 541,112 $ 265,529 Unused overnight Federal funds availability (1) $ 630,500 $ 630,500 Borrowing capacity through the FRB discount window primary credit program (2) $ 374,067 $ 403,752 (1) Our total availability of overnight Federal fund ("fed funds") borrowings is not a committed line of credit and is dependent upon lender availability. (2) Our borrowing capacity changes each quarter subject to available collateral and FRB discount factors.

LONG-TERM DEBT Long-Term Debt (

LONG-TERM DEBT Long-Term Debt (Tables)	6 Months Ended
	Jun. 30, 2015
Long-term Debt, Unclassified [Abstract]
Long-term Debt [Table Text Block]	Long-Term Debt (Dollars in thousands) June 30, December 31, Parent Company: 2.93% junior subordinated debentures due 2034 (1)(a) $ 8,248 $ 8,248 2.00% junior subordinated debentures due 2035 (2)(a) 51,547 51,547 1.79% junior subordinated debentures due 2035 (3)(a) 41,238 41,238 10.00% junior subordinated debentures due 2068 (a) 68,755 68,755 7.125% subordinated debentures due 2042 (b) 125,000 125,000 Subtotal 294,788 294,788 Subsidiaries: FHLB advances 400,000 50,000 Total long-term debt $ 694,788 $ 344,788 (1) Variable rate in effect at June 30, 2015 , based on three-month LIBOR +2.65% . (2) Variable rate in effect at June 30, 2015 , based on three-month LIBOR +1.71% . (3) Variable rate in effect at June 30, 2015 , based on three-month LIBOR +1.50% . (a) Under the final regulatory capital rules issued in July 2013, these instruments are grandfathered for inclusion as a component of Tier 1 capital, although the Tier 1 capital treatment for these instruments could be subject to phase-out due to certain acquisitions. (b) Qualifies as Tier 2 capital for regulatory capital purposes.
Maturity and Rate Schedule for FHLB Long-Term Advances [Table Text Block]	Maturity and Rate Schedule for FHLB Long-Term Advances (Dollars in thousands) June 30, 2015 Amount Rate Maturity Date: June 5, 2017 $ 350,000 0.10 % March 25, 2019 2,000 4.26 % May 22, 2019 3,000 4.68 % September 12, 2019 (1) 15,000 3.72 % September 26, 2019 (1) 15,000 3.69 % December 9, 2019 (2) 15,000 3.58 % Total $ 400,000 0.55 % (1) Provides for a one-time option to increase the advances in September 2016, up to $150.0 million each at the same fixed rate as the original advance. The advances include prepayment features and are subject to a prepayment fee. (2) Provides for a one-time option to increase the advances in December 2016, up to $150.0 million each at the same fixed rate as the original advance. The advances include prepayment features and are subject to a prepayment fee.
Scheduled Maturities of Long-Term Debt [Table Text Block]	Scheduled Maturities of Long-Term Debt (Amounts in thousands) Total Year ending December 31, 2017 $ 350,000 2019 50,000 2020 and thereafter 294,788 Total $ 694,788

JUNIOR SUBORDINATED DEFERRABL32

JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURES HELD BY TRUSTS THAT ISSUED GUARANTEED CAPITAL DEBT SECURITIES (Tables)	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
Common Securities, Preferred Securities, And Related Debentures	Common Securities, Preferred Securities, and Related Debentures (Dollars in thousands) Common Securities Issued Trust Preferred Securities Issued (1) Earliest Redemption Date (on or after) (3) Principal Amount of Debentures (3) Issuance Date Coupon Rate (2) Maturity June 30, December 31, Bloomfield Hills Statutory Trust I May 2004 $ 248 $ 8,000 2.93 % June 17, 2009 June 2034 $ 8,248 $ 8,248 PrivateBancorp Statutory Trust II June 2005 1,547 50,000 2.00 % Sept. 15, 2010 Sept. 2035 51,547 51,547 PrivateBancorp Statutory Trust III Dec. 2005 1,238 40,000 1.79 % Dec. 15, 2010 Dec. 2035 41,238 41,238 PrivateBancorp Capital Trust IV May 2008 5 68,750 10.00 % June 15, 2013 June 2068 68,755 68,755 Total $ 3,038 $ 166,750 $ 169,788 $ 169,788 (1) The Trust Preferred Securities accrue distributions at a rate equal to the interest rate on, and have a maturity identical to that of, the related Debentures. The Trust Preferred Securities will be redeemed upon maturity or earlier redemption of the related Debentures. (2) Reflects the coupon rate in effect at June 30, 2015 . The coupon rate for the Bloomfield Hills Statutory Trust I is a variable rate based on three-month LIBOR plus 2.65% . The coupon rates for PrivateBancorp Statutory Trusts II and III are at a variable rate based on three-month LIBOR plus 1.71% for Trust II and three-month LIBOR plus 1.50% for Trust III. The coupon rate for PrivateBancorp Capital Trust IV is fixed. Distributions on all Trust Preferred Securities are payable quarterly. We have the right to defer payment of interest on the Debentures at any time or from time to time for a period not exceeding ten years in the case of the Debentures held by Trust IV, and five years in the case of all other Debentures, without causing an event of default under the related indenture, provided no extension period may extend beyond the stated maturity of the Debentures. During such extension period, distributions on the trust preferred securities would also be deferred, and our ability to pay dividends on our common stock would generally be prohibited. The Federal Reserve has the ability to prevent interest payments on the Debentures. (3) The Trust Preferred Securities are subject to mandatory redemption, in whole or in part, upon repayment of the Debentures at maturity or upon their earlier redemption in whole or in part. The Debentures are redeemable in whole or in part prior to maturity at any time after the dates shown in the table and only after we have obtained Federal Reserve approval, if then required under applicable guidelines or regulations.

EQUITY (Tables)

EQUITY (Tables)	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
Change in Accumulated Other Comprehensive Income by Component	Change in Accumulated Other Comprehensive Income ("AOCI") by Component (Amounts in thousands) Six Months Ended June 30, 2015 2014 Unrealized Gain on Available-for-Sale Securities Accumulated (Loss) Gain on Effective Cash Flow Hedges Total Unrealized Gain on Available-for-Sale Securities Accumulated (Loss) Gain on Effective Cash Flow Hedges Total Balance at beginning of period $ 19,448 $ 1,469 $ 20,917 $ 12,960 $ (3,116 ) $ 9,844 (Decrease) increase in unrealized gains on securities (5,407 ) — (5,407 ) 15,236 — 15,236 Increase in unrealized gains on cash flow hedges — 8,126 8,126 — 11,878 11,878 Tax benefit (expense) on increase in unrealized gains (losses) 2,074 (3,154 ) (1,080 ) (5,972 ) (4,650 ) (10,622 ) Other comprehensive (loss) income before reclassifications (3,333 ) 4,972 1,639 9,264 7,228 16,492 Reclassification adjustment of net gains included in net income (1) (533 ) (5,072 ) (5,605 ) (527 ) (4,307 ) (4,834 ) Reclassification adjustment for tax expense on realized net gains (2) 207 1,970 2,177 208 1,696 1,904 Amounts reclassified from AOCI (326 ) (3,102 ) (3,428 ) (319 ) (2,611 ) (2,930 ) Net current period other comprehensive (loss) income (3,659 ) 1,870 (1,789 ) 8,945 4,617 13,562 Balance at end of period $ 15,789 $ 3,339 $ 19,128 $ 21,905 $ 1,501 $ 23,406 (1) The amounts reclassified from AOCI for the available-for-sale securities are included in net securities gains on the Consolidated Statements of Income, while the amounts reclassified from AOCI for cash flow hedges are included in interest income on loans on the Consolidated Statements of Income. (2) The tax expense amounts reclassified from AOCI in connection with the available-for-sale securities reclassification and cash flow hedges reclassification are included in income tax provision on the Consolidated Statements of Income.

EARNINGS PER COMMON SHARE (Tabl

EARNINGS PER COMMON SHARE (Tables)	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
Basic and Diluted Earnings Per Common Share	Basic and Diluted Earnings per Common Share (Amounts in thousands, except per share data) Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Basic earnings per common share Net income $ 46,422 $ 40,824 $ 87,906 $ 75,329 Net income allocated to participating stockholders (1) (366 ) (519 ) (838 ) (1,147 ) Net income allocated to common stockholders $ 46,056 $ 40,305 $ 87,068 $ 74,182 Weighted-average common shares outstanding 77,942 77,062 77,676 76,869 Basic earnings per common share $ 0.59 $ 0.52 $ 1.12 $ 0.97 Diluted earnings per common share Diluted earnings applicable to common stockholders (2) $ 46,059 $ 40,308 $ 87,080 $ 74,192 Weighted-average diluted common shares outstanding: Weighted-average common shares outstanding 77,942 77,062 77,676 76,869 Dilutive effect of stock awards (3) 1,216 744 1,161 743 Weighted-average diluted common shares outstanding 79,158 77,806 78,837 77,612 Diluted earnings per common share $ 0.58 $ 0.52 $ 1.10 $ 0.96 (1) Participating stockholders are those that hold certain share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents. Such shares or units are considered participating securities (i.e., certain of the Company’s deferred and restricted stock units and nonvested restricted stock awards). (2) Net income allocated to common stockholders for basic and diluted earnings per share may differ under the two-class method as a result of adding common stock equivalents for options to dilutive shares outstanding, which alters the ratio used to allocate earnings to common stockholders and participating securities for the purposes of calculating diluted earnings per share. (3) For the quarters ended June 30, 2015 and 2014 , the weighted-average outstanding non-participating securities of 238,000 and 1.3 million shares, respectively, and for the six months ended June 30, 2015 and 2014 , the weighted-average outstanding non-participating securities of 483,000 and 1.3 million shares, respectively, were not included in the computation of diluted earnings per common share because their inclusion would have been antidilutive for the periods presented.

INCOME TAXES (Tables)

INCOME TAXES (Tables)	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
Income Tax Provision Analysis	Income Tax Provision Analysis (Dollars in thousands) Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Income before income taxes $ 73,668 $ 66,818 $ 140,386 $ 122,349 Income tax provision: Current income tax provision $ 28,691 $ 26,086 $ 50,231 $ 45,953 Deferred income tax (benefit) provision (1,445 ) (92 ) 2,249 1,067 Total income tax provision $ 27,246 $ 25,994 $ 52,480 $ 47,020 Effective tax rate 37.0 % 38.9 % 37.4 % 38.4 %

DERIVATIVE INSTRUMENTS (Tables)

DERIVATIVE INSTRUMENTS (Tables)	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
Notional Amounts and Fair Value Of Derivative Instruments	Notional Amounts and Fair Value of Derivative Instruments (Amounts in thousands) Asset Derivatives Liability Derivatives June 30, 2015 December 31, 2014 June 30, 2015 December 31, 2014 Notional (1) Fair Value Notional (1) Fair Value Notional (1) Fair Value Notional (1) Fair Value Derivatives designated as hedging instruments: Interest rate contracts $ 600,000 $ 5,817 $ 550,000 $ 4,542 $ 200,000 $ 1,284 $ 250,000 $ 2,715 Derivatives not designated as hedging instruments: Client-related derivatives: Interest rate contracts $ 3,810,941 $ 45,099 $ 3,881,202 $ 42,879 $ 3,810,941 $ 46,150 $ 3,743,827 $ 43,792 Foreign exchange contracts 249,258 6,547 98,285 5,183 219,588 5,681 86,582 4,659 Risk participation agreements (1) 85,745 15 98,478 19 114,637 41 100,941 24 Total client-related derivatives $ 51,661 $ 48,081 $ 51,872 $ 48,475 Other end-user derivatives: Foreign exchange contracts $ 9,490 $ 87 $ 18,551 $ 241 $ 207 $ 3 $ 2,892 $ 45 Mortgage banking derivatives 456 786 130 801 Total other end-user derivatives $ 543 $ 1,027 $ 133 $ 846 Total derivatives not designated as hedging instruments $ 52,204 $ 49,108 $ 52,005 $ 49,321 Netting adjustments (2) (10,579 ) (10,588 ) (28,593 ) (25,269 ) Total derivatives $ 47,442 $ 43,062 $ 24,696 $ 26,767 (1) The remaining average notional amounts are shown for risk participation agreements. (2) Represents netting of derivative asset and liability balances, and related cash collateral, with the same counterparty subject to master netting agreements. Refer to Note 14 for additional information regarding master netting agreements.
Derivatives Subject To Credit Risk Contingency Features	Derivatives Subject to Credit Risk Contingency Features (Amounts in thousands) June 30, December 31, Fair value of derivatives with credit contingency features in a net liability position $ 14,207 $ 14,596 Collateral posted for those transactions in a net liability position $ 16,230 $ 16,865 If credit risk contingency features were triggered: Additional collateral required to be posted to derivative counterparties $ — $ — Outstanding derivative instruments that would be immediately settled $ 14,207 $ 14,596
Change In Accumulated Other Comprehensive Income Related To Interest Rate Swaps Designated As Cash Flow Hedge	Change in Accumulated Other Comprehensive Income Related to Interest Rate Swaps Designated as Cash Flow Hedge (Amounts in thousands) Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Pre-tax After-tax Pre-tax After-tax Pre-Tax After-tax Pre-Tax After-tax Accumulated unrealized gain (loss) at beginning of period $ 8,497 $ 5,191 $ (3,016 ) $ (1,839 ) $ 2,405 $ 1,469 $ (5,110 ) $ (3,116 ) Amount of (loss) gain recognized in AOCI (effective portion) (504 ) (289 ) 7,741 4,714 8,126 4,972 11,878 7,228 Amount reclassified from AOCI to interest income on loans (2,534 ) (1,563 ) (2,264 ) (1,374 ) (5,072 ) (3,102 ) (4,307 ) (2,611 ) Accumulated unrealized gain at end of period $ 5,459 $ 3,339 $ 2,461 $ 1,501 $ 5,459 $ 3,339 $ 2,461 $ 1,501
Risk Participation Agreements	Risk Participation Agreements (Dollars in thousands) June 30, December 31, Fair value of written RPAs $ 41 $ 24 Range of remaining terms to maturity (in years) Less than 1 to 5 Less than 1 to 4 Range of assigned internal risk ratings 2 to 7 2 to 7 Maximum potential amount of future undiscounted payments $ 2,999 $ 3,927 Percent of maximum potential amount of future undiscounted payments covered by proceeds from liquidation of pledged collateral 34 % 25 %
Gain (Loss) Recognized On Derivative Instruments Not Designated In Hedging Relationship	Gain (Loss) Recognized on Derivative Instruments Not Designated in Hedging Relationship (Amounts in thousands) Location in Consolidated Statement of Income Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Gain on client-related derivatives: Interest rate contracts Capital markets income $ 2,536 $ 2,509 $ 4,899 $ 5,019 Foreign exchange contracts Capital markets income 2,350 2,383 4,103 3,798 Risk participation agreements Capital markets income 33 114 89 272 Total client-related derivatives 4,919 5,006 9,091 9,089 (Loss) gain on end-user derivatives: Foreign exchange derivatives Other income, service and charges income (500 ) (259 ) 550 (253 ) Mortgage banking derivatives Mortgage banking income 380 (134 ) 340 (316 ) Total end-user derivatives (120 ) (393 ) 890 (569 ) Total derivatives not designated in hedging relationship $ 4,799 $ 4,613 $ 9,981 $ 8,520

BALANCE SHEET OFFSETTING BALA37

BALANCE SHEET OFFSETTING BALANCE SHEET OFFSETTING (Tables)	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
Offsetting of Financial Assets and Liabilities	Offsetting of Financial Assets and Liabilities (Amounts in thousands) Gross Amounts of Recognized Assets / Liabilities Gross Amounts Offset (2) Net Amount Presented on the Statement of Financial Condition Gross Amounts Not Offset on the Statement of Financial Condition (3) Net Amount Financial Instruments (4) Cash Collateral As of June 30, 2015 Financial assets: Derivatives (1) : Interest rate contracts $ 50,916 $ (7,847 ) $ 43,069 $ — $ — $ 43,069 Foreign exchange contracts 3,866 (2,725 ) 1,141 — — 1,141 Risk participation agreements 15 — 15 — — 15 Mortgage banking derivatives 58 (7 ) 51 — — 51 Total derivatives subject to a master netting agreement 54,855 (10,579 ) 44,276 — — 44,276 Total derivatives not subject to a master netting agreement 3,166 — 3,166 — — 3,166 Total derivatives $ 58,021 $ (10,579 ) $ 47,442 $ — $ — $ 47,442 Financial liabilities: Derivatives (1) : Interest rate contracts $ 47,434 $ (26,424 ) $ 21,010 $ (17,015 ) $ — $ 3,995 Foreign exchange contracts 4,462 (2,162 ) 2,300 (1,863 ) — 437 Risk participation agreements 41 — 41 (33 ) — 8 Mortgage banking derivatives 7 (7 ) — — — — Total derivatives subject to a master netting agreement 51,944 (28,593 ) 23,351 (18,911 ) — 4,440 Total derivatives not subject to a master netting agreement 1,345 — 1,345 — — 1,345 Total derivatives 53,289 (28,593 ) 24,696 (18,911 ) — 5,785 Repurchase agreements 150,801 — 150,801 (150,801 ) — — Total $ 204,090 $ (28,593 ) $ 175,497 $ (169,712 ) $ — $ 5,785 (1) All derivative contracts are over-the-counter contracts. (2) Represents financial instrument and related cash collateral entered into with the same counterparty and subject to a master netting agreement. (3) Collateralization is determined at the counterparty level. If overcollateralization exists, the amount shown is limited to the fair value of the financial instrument. (4) Financial instruments are disclosed at fair value. Financial instrument collateral is allocated pro-rata amongst the derivative liabilities to which it relates. Offsetting of Financial Assets and Liabilities (Continued) (Amounts in thousands) Gross Amounts of Recognized Assets / Liabilities Gross Amounts Offset (2) Net Amount Presented on the Statement of Financial Condition Gross Amounts Not Offset on the Statement of Financial Condition (3) Net Amount Financial Instruments (4) Cash Collateral As of December 31, 2014 Financial assets: Derivatives (1) : Interest rate contracts $ 47,421 $ (7,433 ) $ 39,988 $ — $ — $ 39,988 Foreign exchange contracts 3,664 (3,154 ) 510 — — 510 Risk participation agreements 19 (1 ) 18 — — 18 Total derivatives subject to a master netting agreement 51,104 (10,588 ) 40,516 — — 40,516 Total derivatives not subject to a master netting agreement 2,546 — 2,546 — — 2,546 Total derivatives 53,650 (10,588 ) 43,062 — — 43,062 Financial liabilities: Derivatives (1) : Interest rate contracts $ 46,507 $ (24,067 ) $ 22,440 $ (17,755 ) $ — $ 4,685 Foreign exchange contracts 2,421 (1,202 ) 1,219 (965 ) — 254 Risk participation agreements 24 — 24 (19 ) — 5 Total derivatives subject to a master netting agreement 48,952 (25,269 ) 23,683 (18,739 ) — 4,944 Total derivatives not subject to a master netting agreement 3,084 — 3,084 — — 3,084 Total derivatives 52,036 (25,269 ) 26,767 (18,739 ) — 8,028 (1) All derivative contracts are over-the-counter contracts. (2) Represents financial instrument and related cash collateral entered into with the same counterparty and subject to a master netting agreement. (3) Collateralization is determined at the counterparty level. If overcollateralization exists, the amount shown is limited to the fair value of the financial instrument. (4) Financial instruments are disclosed at fair value. Financial instrument collateral is allocated pro-rata amongst the derivative liabilities to which it relates.

COMMITMENTS, GUARANTEES, AND 38

COMMITMENTS, GUARANTEES, AND CONTINGENT LIABILITIES (Tables)	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
Contractual Or Notional Amounts Of Financial Instruments	Contractual or Notional Amounts of Financial Instruments (1) (Amounts in thousands) June 30, December 31, Commitments to extend credit: Home equity lines $ 132,820 $ 129,943 Residential 1-4 family construction 43,162 53,847 Commercial real estate, other construction, and land development 1,185,398 1,123,123 Commercial and industrial 3,863,648 4,031,217 All other commitments 521,199 336,623 Total commitments to extend credit $ 5,746,227 $ 5,674,753 Letters of credit: Financial standby $ 353,416 $ 334,175 Performance standby 40,559 38,167 Commercial letters of credit 5,315 5,224 Total letters of credit $ 399,290 $ 377,566 (1) Includes covered loan commitments of $10.3 million and $11.0 million as of June 30, 2015 , and December 31, 2014 , respectively.

ESTIMATED FAIR VALUE OF FINAN39

ESTIMATED FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
Fair Value Measurements on a Recurring Basis	Fair Value Measurements on a Recurring Basis (Amounts in thousands) June 30, 2015 December 31, 2014 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: Securities available-for sale: U.S. Treasury $ 268,895 $ — $ — $ 268,895 $ 268,265 $ — $ — $ 268,265 U.S. Agency — 46,423 — 46,423 — 46,258 — 46,258 Collateralized mortgage obligations — 117,097 — 117,097 — 136,933 — 136,933 Residential mortgage-backed securities — 853,363 — 853,363 — 846,078 — 846,078 State and municipal securities — 412,455 — 412,455 — 347,310 — 347,310 Foreign sovereign debt — — — — — 500 — 500 Total securities available-for-sale 268,895 1,429,338 — 1,698,233 268,265 1,377,079 — 1,645,344 Mortgage loans held-for-sale — 24,414 — 24,414 — 42,215 — 42,215 Derivative assets: Interest rate contract derivatives designated as hedging instruments — 5,817 — 5,817 — 4,542 — 4,542 Client-related derivatives — 50,978 683 51,661 — 46,669 1,412 48,081 Other end-user derivatives — 145 398 543 — 241 786 1,027 Netting adjustments — (10,448 ) (131 ) (10,579 ) — (9,952 ) (636 ) (10,588 ) Total derivative assets — 46,492 950 47,442 — 41,500 1,562 43,062 Total assets $ 268,895 $ 1,500,244 $ 950 $ 1,770,089 $ 268,265 $ 1,460,794 $ 1,562 $ 1,730,621 Liabilities: Derivative liabilities: Interest rate contract derivatives designated as hedging instruments $ — $ 1,284 $ — $ 1,284 $ — $ 2,715 $ — $ 2,715 Client-related derivatives — 51,700 172 51,872 — 47,799 676 48,475 Other end-user derivatives — 10 123 133 — 45 801 846 Netting adjustments — (28,462 ) (131 ) (28,593 ) — (24,633 ) (636 ) (25,269 ) Total derivative liabilities $ — $ 24,532 $ 164 $ 24,696 $ — $ 25,926 $ 841 $ 26,767
Reconciliation of Beginning and Ending Fair Value for Those Fair Value Measurements Using Significant Unobservable Inputs (Level 3)	Reconciliation of Beginning and Ending Fair Value for Those Fair Value Measurements Using Significant Unobservable Inputs (Level 3) (1) (Amounts in thousands) Three Months Ended June 30, 2015 2014 Derivative Assets Derivative (Liabilities) Derivative Assets Derivative (Liabilities) Balance at beginning of period $ 2,233 $ (1,239 ) $ 1,038 $ (735 ) Total gains: Included in earnings (2) (384 ) 153 329 181 Purchases, issuances, sales and settlements: Issuances 347 — 240 — Settlements (572 ) 340 (645 ) 28 Transfers into Level 3 (out of Level 2) (3) 284 — 1,752 (948 ) Transfers out of Level 3 (into Level 2) (3) (827 ) 451 (2 ) — Balance at end of period $ 1,081 $ (295 ) $ 2,712 $ (1,474 ) Change in unrealized gains in earnings relating to assets and liabilities still held at end of period $ (36 ) $ 193 $ 89 $ 313 Six Months Ended June 30, 2015 2014 Derivative Assets Derivative (Liabilities) Derivative Assets Derivative (Liabilities) Balance at beginning of period $ 2,198 $ (1,477 ) $ 789 $ (201 ) Total gains: Included in earnings (2) (242 ) 299 226 543 Purchases, issuances, sales and settlements: Issuances 505 — 412 — Settlements (1,363 ) 584 (1,180 ) (422 ) Transfers into Level 3 (out of Level 2) (3) 1,168 (160 ) 2,579 (1,394 ) Transfers out of Level 3 (into Level 2) (3) (1,185 ) 459 (114 ) — Balance at end of period $ 1,081 $ (295 ) $ 2,712 $ (1,474 ) Change in unrealized gains in earnings relating to assets and liabilities still held at end of period $ 490 $ (26 ) $ 66 $ 790 (1) Fair value is presented prior to giving effect to netting adjustments. (2) Amounts disclosed in this line are included in the Consolidated Statements of Income as capital markets products income for derivatives and mortgage banking income for interest rate lock commitments. (3) Transfers in and transfers out are recognized at the end of each quarterly reporting period. In general, derivative assets and liabilities are transferred into Level 3 from Level 2 due to a lack of observable market data, as there was deterioration in the credit risk of the derivative counterparty. Conversely, derivative assets and liabilities are transferred out of Level 3 into Level 2 due to an improvement in the credit risk of the derivative counterparty.
Difference Between Aggregate Fair Value And Aggregate Remaining Principle Balance For Mortgage Loans Held For Sale Elected To Be Carried At Fair Value	Difference Between Aggregate Fair Value and Aggregate Remaining Principal Balance for Mortgage Loans Held-For-Sale Elected to be Carried at Fair Value (Amounts in thousands) June 30, December 31, Aggregate fair value $ 24,414 $ 42,215 Difference (1) 271 (16 ) Aggregate unpaid principal balance $ 24,685 $ 42,199 (1) The change in fair value is reflected in mortgage banking non-interest income.
Fair Value Measurements on a Nonrecurring Basis	All fair value measurements on a nonrecurring basis were measured using level 3 of the valuation hierarchy. Fair Value Measurements on a Nonrecurring Basis (Amounts in thousands) Fair Value Net (Gains) Losses June 30, For the Six Months Ended June 30, 2015 2014 2015 2014 Collateral-dependent impaired loans (1) $ 27,186 $ 31,482 $ (3,021 ) $ 12,391 OREO (2) 10,473 14,238 1,161 3,556 Total $ 37,659 $ 45,720 $ (1,860 ) $ 15,947 (1) Represents the fair value of loans adjusted to the appraised value of the collateral with a write-down in fair value or change in specific reserves during the respective period. These fair value adjustments are recorded against the allowance for loan losses. (2) Represents the fair value of foreclosed properties that were adjusted subsequent to their initial classification as foreclosed assets. Write-downs are recognized as a component of net foreclosed real estate expense in the Consolidated Statements of Income.
Quantitative Information Regarding Level 3 Fair Value Measurements	Quantitative Information Regarding Level 3 Fair Value Measurements (Dollars in thousands) Financial Instrument: Fair Value of Assets / (Liabilities) at June 30, 2015 Valuation Technique(s) Unobservable Input Range Weighted Average Watch list derivatives $ 537 Discounted cash flow Loss factors 7.2% to 16.6% 12.9 % Risk participation agreements $ (26 ) (1) Discounted cash flow Loss factors 0.6% to 16.6% 8.8 % Interest rate lock commitments $ (371 ) Discounted cash flow Pull-through rate 80.0% to 100.0% 81.1 % Collateral-dependent impaired loans $ 27,186 Sales comparison, Property specific -0.2% to -27.8% -8.4 % (2) OREO $ 10,473 Sales comparison, Property specific -1.0% to -18.8% -6.8 % (2) (1) Represents fair value of underlying swap. (2) Weighted average is calculated based on assets with a property specific adjustment.
Financial Instruments	Financial Instruments (Amounts in thousands) As of June 30, 2015 Carrying Amount Fair Value Measurements Using Fair Value Level 1 Level 2 Level 3 Financial Assets: Cash and due from banks $ 185,983 $ 185,983 $ 185,983 $ — $ — Federal funds sold and interest-bearing deposits in banks 192,531 192,531 — 192,531 — Loans held-for-sale 54,263 54,263 — 54,263 — Securities available-for-sale 1,698,233 1,698,233 268,895 1,429,338 — Securities held-to-maturity 1,199,120 1,198,460 — 1,198,460 — FHLB stock 25,854 25,854 — 25,854 — Loans, net of allowance for loan losses and unearned fees 12,386,230 12,351,635 — — 12,351,635 Covered assets, net of allowance for covered loan losses 24,197 30,408 — — 30,408 Accrued interest receivable 43,442 43,442 — — 43,442 Investment in BOLI 55,926 55,926 — — 55,926 Derivative assets 47,442 47,442 — 46,492 950 Financial Liabilities: Deposits $ 13,388,936 $ 13,396,155 $ — $ 10,998,935 $ 2,397,220 Short-term borrowings 434,695 434,118 — 427,847 6,271 Long-term debt 694,788 670,526 205,200 398,967 66,359 Accrued interest payable 7,543 7,543 — — 7,543 Derivative liabilities 24,696 24,696 — 24,532 164 Financial Instruments (Continued) (Amounts in thousands) As of December 31, 2014 Carrying Amount Fair Value Measurements Using Fair Value Level 1 Level 2 Level 3 Financial Assets: Cash and due from banks $ 132,211 $ 132,211 $ 132,211 $ — $ — Federal funds sold and interest-bearing deposits in banks 292,341 292,341 — 292,341 — Loans held-for-sale 115,161 115,161 — 115,161 — Securities available-for-sale 1,645,344 1,645,344 268,265 1,377,079 — Securities held-to-maturity 1,129,285 1,132,615 — 1,132,615 — FHLB stock 28,666 28,666 — 28,666 — Loans, net of allowance for loan losses and unearned fees 11,739,721 11,736,461 — — 11,736,461 Covered assets, net of allowance for covered loan losses 28,941 33,988 — — 33,988 Accrued interest receivable 40,531 40,531 — — 40,531 Investment in BOLI 55,207 55,207 — — 55,207 Derivative assets 43,062 43,062 — 41,500 1,562 Financial Liabilities: Deposits $ 13,089,968 $ 13,095,657 $ — $ 10,595,040 $ 2,500,617 Deposits held-for-sale 122,216 117,572 — 117,572 — Short-term borrowings 432,385 430,944 — 427,150 3,794 Long-term debt 344,788 332,374 204,320 54,092 73,962 Accrued interest payable 6,948 6,948 — — 6,948 Derivative liabilities 26,767 26,767 — 25,926 841

OPERATING SEGMENTS (Tables)

OPERATING SEGMENTS (Tables)	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
Operating Segments Performance	Operating Segments Performance (Amounts in thousands) Three Months Ended June 30, Banking Asset Management Holding Company and Other Adjustments Consolidated 2015 2014 2015 2014 2015 2014 2015 2014 Net interest income (loss) $ 129,121 $ 118,755 $ 1,104 $ 987 $ (5,603 ) $ (7,391 ) $ 124,622 $ 112,351 Provision for loan and covered loan losses 2,116 327 — — — — 2,116 327 Non-interest income 28,273 25,804 4,771 4,440 15 15 33,059 30,259 Non-interest expense 74,756 68,520 4,513 4,332 2,628 2,613 81,897 75,465 Income (loss) before taxes 80,522 75,712 1,362 1,095 (8,216 ) (9,989 ) 73,668 66,818 Income tax provision (benefit) 29,951 29,330 524 431 (3,229 ) (3,767 ) 27,246 25,994 Net income (loss) $ 50,571 $ 46,382 $ 838 $ 664 $ (4,987 ) $ (6,222 ) $ 46,422 $ 40,824 Six Months Ended June 30, Banking Asset Management Holding Company Consolidated 2015 2014 2015 2014 2015 2014 2015 2014 Net interest income (loss) $ 255,619 $ 233,907 $ 2,003 $ 1,774 $ (11,007 ) $ (14,578 ) $ 246,615 $ 221,103 Provision for loan and covered loan losses 7,762 4,034 — — — — 7,762 4,034 Non-interest income 57,411 47,676 9,134 8,789 30 30 66,575 56,495 Non-interest expense 150,691 137,180 8,825 8,408 5,526 5,627 165,042 151,215 Income (loss) before taxes 154,577 140,369 2,312 2,155 (16,503 ) (20,175 ) 140,386 122,349 Income tax provision (benefit) 57,888 53,983 898 849 (6,306 ) (7,812 ) 52,480 47,020 Net income (loss) $ 96,689 $ 86,386 $ 1,414 $ 1,306 $ (10,197 ) $ (12,363 ) $ 87,906 $ 75,329 Banking Holding Company and Other Adjustments (1) Consolidated 6/30/2015 12/31/2014 6/30/2015 12/31/2014 6/30/2015 12/31/2014 Selected Balances Assets $ 14,395,309 $ 13,882,805 $ 1,830,586 $ 1,720,577 $ 16,225,895 $ 15,603,382 Total loans 12,543,281 11,892,219 — — 12,543,281 11,892,219 Deposits, excluding deposits held-for-sale 13,442,839 13,150,600 (53,903 ) (60,632 ) 13,388,936 13,089,968 (1) Deposit amounts represent the elimination of Holding Company cash accounts included in total deposits of the Banking segment.

VARIABLE INTEREST ENTITIES (Tab

VARIABLE INTEREST ENTITIES (Tables)	6 Months Ended
	Jun. 30, 2015
Text Block [Abstract]
Nonconsolidated Variable Interest Entities	Nonconsolidated VIEs (Amounts in thousands) June 30, 2015 December 31, 2014 Carrying Amount Maximum Exposure to Loss Carrying Amount Maximum Exposure to Loss Trust preferred capital securities issuances $ 169,788 $ — $ 169,788 $ — Community reinvestment investments 10,887 12,581 14,360 16,054 Restructured loans to commercial clients (1) : Outstanding loan balance 53,213 67,219 49,376 57,782 Related derivative asset 37 37 6,533 6,533 Total $ 233,925 $ 79,837 $ 240,057 $ 80,369 (1) Excludes personal loans and loans to non-for-profit entities.

Securities (Securities Portfoli

Securities (Securities Portfolio) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Investment [Line Items]
Securities Available-for-Sale, Amortized Cost	$ 1,672,174	$ 1,613,345
Securities Available-for-Sale, Gross Unrealized Gains	31,550	36,734
Securities Available-for-Sale, Gross Unrealized Losses	(5,491)	(4,735)
Securities available-for-sale, at fair value	1,698,233	1,645,344
Securities Held-to-Maturity, Amortized Cost	1,199,120	1,129,285
Securities Held-to-Maturity, Gross Unrealized Gains	7,215	10,006
Securities Held-to-Maturity, Gross Unrealized Losses	(7,875)	(6,676)
Securities Held-to-Maturity, Fair Value	1,198,460	1,132,615
U.S. Treasury [Member]
Investment [Line Items]
Securities Available-for-Sale, Amortized Cost	268,306	269,697
Securities Available-for-Sale, Gross Unrealized Gains	916	120
Securities Available-for-Sale, Gross Unrealized Losses	(327)	(1,552)
Securities available-for-sale, at fair value	268,895	268,265
U.S. Agency [Member]
Investment [Line Items]
Securities Available-for-Sale, Amortized Cost	46,733	46,959
Securities Available-for-Sale, Gross Unrealized Gains	0	0
Securities Available-for-Sale, Gross Unrealized Losses	(310)	(701)
Securities available-for-sale, at fair value	46,423	46,258
Collateralized mortgage obligations [Member]
Investment [Line Items]
Securities Available-for-Sale, Amortized Cost	113,215	132,633
Securities Available-for-Sale, Gross Unrealized Gains	3,913	4,334
Securities Available-for-Sale, Gross Unrealized Losses	(31)	(34)
Securities available-for-sale, at fair value	117,097	136,933
Securities Held-to-Maturity, Amortized Cost	56,341	59,960
Securities Held-to-Maturity, Gross Unrealized Gains	0	0
Securities Held-to-Maturity, Gross Unrealized Losses	(1,851)	(2,017)
Securities Held-to-Maturity, Fair Value	54,490	57,943
Residential mortgage-backed securities [Member]
Investment [Line Items]
Securities Available-for-Sale, Amortized Cost	835,105	822,746
Securities Available-for-Sale, Gross Unrealized Gains	20,797	25,058
Securities Available-for-Sale, Gross Unrealized Losses	(2,539)	(1,726)
Securities available-for-sale, at fair value	853,363	846,078
Securities Held-to-Maturity, Amortized Cost	928,158	885,235
Securities Held-to-Maturity, Gross Unrealized Gains	6,408	9,410
Securities Held-to-Maturity, Gross Unrealized Losses	(4,163)	(2,483)
Securities Held-to-Maturity, Fair Value	930,403	892,162
Commercial mortgage-backed securities [Member]
Investment [Line Items]
Securities Held-to-Maturity, Amortized Cost	209,010	183,021
Securities Held-to-Maturity, Gross Unrealized Gains	802	592
Securities Held-to-Maturity, Gross Unrealized Losses	(1,855)	(2,176)
Securities Held-to-Maturity, Fair Value	207,957	181,437
State and municipal securities [Member]
Investment [Line Items]
Securities Available-for-Sale, Amortized Cost	408,815	340,810
Securities Available-for-Sale, Gross Unrealized Gains	5,924	7,222
Securities Available-for-Sale, Gross Unrealized Losses	(2,284)	(722)
Securities available-for-sale, at fair value	412,455	347,310
Securities Held-to-Maturity, Amortized Cost	1,069	1,069
Securities Held-to-Maturity, Gross Unrealized Gains	5	4
Securities Held-to-Maturity, Gross Unrealized Losses	0	0
Securities Held-to-Maturity, Fair Value	1,074	1,073
Foreign sovereign debt [Member]
Investment [Line Items]
Securities Available-for-Sale, Amortized Cost	0	500
Securities Available-for-Sale, Gross Unrealized Gains	0	0
Securities Available-for-Sale, Gross Unrealized Losses	0	0
Securities available-for-sale, at fair value	0	500
Other securities [Member]
Investment [Line Items]
Securities Held-to-Maturity, Amortized Cost	4,542	0
Securities Held-to-Maturity, Gross Unrealized Gains	0	0
Securities Held-to-Maturity, Gross Unrealized Losses	(6)	0
Securities Held-to-Maturity, Fair Value	$ 4,536	$ 0

Securities (Narrative) (Detail)

Securities (Narrative) (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Disclosure Securities Narrative [Abstract]
Available-for-sale and held-to-maturity securities, pledged, carrying value	$ 541,700	$ 353,100
Securities pledged as collateral which may be sold or re-pledged by the secured party	246,700	86,500
Investments securities from one issuer that exceeds maximum percentage	$ 0	$ 0
Percentage of securities portfolio from one issuer, maximum	10.00%	10.00%
Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	$ 303,200	$ 616,800
Securities, Continuous Unrealized Loss Position, 12 Months Or Longer, Aggregate Losses	6,300	10,900
Other than Temporary Impairment Losses, Investments	$ 0	$ 0

Securities (Securities In Unrea

Securities (Securities In Unrealized Loss Position) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Investment [Line Items]
Securities Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 327,641	$ 176,890
Securities Available-for-Sale, Continuous Unrealized Loss Position, Less Than 12 Months, Unrealized Losses	(3,168)	(442)
Securities Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	138,416	290,612
Securities Available-for-Sale, Continuous Unrealized Loss Position, 12 Months Or Longer, Unrealized Losses	(2,323)	(4,293)
Securities Available-for-Sale, Continuous Unrealized Loss Position, Total Fair Value	466,057	467,502
Securities Available-for-Sale, Continuous Unrealized Loss Position, Total Unrealized Losses	(5,491)	(4,735)
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	387,224	55,888
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(3,890)	(66)
Securities Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	164,795	326,216
Securities Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(3,985)	(6,610)
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Total Fair Value	552,019	382,104
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Total Unrealized Losses	(7,875)	(6,676)
U.S. Treasury [Member]
Investment [Line Items]
Securities Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	25,088	119,233
Securities Available-for-Sale, Continuous Unrealized Loss Position, Less Than 12 Months, Unrealized Losses	(131)	(159)
Securities Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	52,133	123,117
Securities Available-for-Sale, Continuous Unrealized Loss Position, 12 Months Or Longer, Unrealized Losses	(196)	(1,393)
Securities Available-for-Sale, Continuous Unrealized Loss Position, Total Fair Value	77,221	242,350
Securities Available-for-Sale, Continuous Unrealized Loss Position, Total Unrealized Losses	(327)	(1,552)
U.S. Agency [Member]
Investment [Line Items]
Securities Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	46,422	0
Securities Available-for-Sale, Continuous Unrealized Loss Position, Less Than 12 Months, Unrealized Losses	(310)	0
Securities Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	0	46,258
Securities Available-for-Sale, Continuous Unrealized Loss Position, 12 Months Or Longer, Unrealized Losses	0	(701)
Securities Available-for-Sale, Continuous Unrealized Loss Position, Total Fair Value	46,422	46,258
Securities Available-for-Sale, Continuous Unrealized Loss Position, Total Unrealized Losses	(310)	(701)
Collateralized mortgage obligations [Member]
Investment [Line Items]
Securities Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	5,351	4,565
Securities Available-for-Sale, Continuous Unrealized Loss Position, Less Than 12 Months, Unrealized Losses	(31)	(34)
Securities Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	0	0
Securities Available-for-Sale, Continuous Unrealized Loss Position, 12 Months Or Longer, Unrealized Losses	0	0
Securities Available-for-Sale, Continuous Unrealized Loss Position, Total Fair Value	5,351	4,565
Securities Available-for-Sale, Continuous Unrealized Loss Position, Total Unrealized Losses	(31)	(34)
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	0	0
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	0	0
Securities Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	54,490	57,943
Securities Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(1,851)	(2,017)
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Total Fair Value	54,490	57,943
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Total Unrealized Losses	(1,851)	(2,017)
Residential mortgage-backed securities [Member]
Investment [Line Items]
Securities Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	74,797	0
Securities Available-for-Sale, Continuous Unrealized Loss Position, Less Than 12 Months, Unrealized Losses	(473)	0
Securities Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	82,475	89,085
Securities Available-for-Sale, Continuous Unrealized Loss Position, 12 Months Or Longer, Unrealized Losses	(2,066)	(1,726)
Securities Available-for-Sale, Continuous Unrealized Loss Position, Total Fair Value	157,272	89,085
Securities Available-for-Sale, Continuous Unrealized Loss Position, Total Unrealized Losses	(2,539)	(1,726)
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	296,725	45,867
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(2,713)	(38)
Securities Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	61,379	162,564
Securities Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(1,450)	(2,445)
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Total Fair Value	358,104	208,431
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Total Unrealized Losses	(4,163)	(2,483)
Commercial mortgage-backed securities [Member]
Investment [Line Items]
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	85,963	10,021
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(1,171)	(28)
Securities Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	48,926	105,709
Securities Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(684)	(2,148)
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Total Fair Value	134,889	115,730
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Total Unrealized Losses	(1,855)	(2,176)
State and municipal securities [Member]
Investment [Line Items]
Securities Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	175,983	53,092
Securities Available-for-Sale, Continuous Unrealized Loss Position, Less Than 12 Months, Unrealized Losses	(2,223)	(249)
Securities Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	3,808	32,152
Securities Available-for-Sale, Continuous Unrealized Loss Position, 12 Months Or Longer, Unrealized Losses	(61)	(473)
Securities Available-for-Sale, Continuous Unrealized Loss Position, Total Fair Value	179,791	85,244
Securities Available-for-Sale, Continuous Unrealized Loss Position, Total Unrealized Losses	(2,284)	$ (722)
Other securities [Member]
Investment [Line Items]
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	4,536
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(6)
Securities Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	0
Securities Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	0
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Total Fair Value	4,536
Securities Held-to-Maturity, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (6)

Securities (Remaining Contractu

Securities (Remaining Contractual Maturity Of Securities) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Investment [Line Items]
Available-For-Sale Securities, Amortized Cost	$ 1,672,174	$ 1,613,345
Securities available-for-sale, at fair value	1,698,233	1,645,344
Securities Held-to-Maturity, Amortized Cost	1,199,120	1,129,285
Securities Held-to-Maturity, Fair Value	1,198,460	1,132,615
U.S. Treasury, U.S. Agency, state and municipal and other securities [Member]
Investment [Line Items]
Available-For-Sale Securities, One year or less, Amortized Cost	8,200
Available-For-Sale Securities, One year to five years, Amortized Cost	480,331
Available-For-Sale Securities, Five years to ten years, Amortized Cost	220,417
Available-For-Sale Securities, After ten years, Amortized Cost	14,906
Available-For-Sale Securities, One year or less, Fair Value	8,314
Available-For-Sale Securities, One year to five years, Fair Value	484,045
Available-For-Sale Securities, Five years to ten years, Fair Value	220,633
Available-For-Sale Securities, After ten years, Fair value	14,781
Held-to-Maturity Securities, One year or less, Amortized Cost	816
Held-to-Maturity Securities, One year to five years, Amortized Cost	253
Held-to-Maturity Securities, Five years to ten years, Amortized Cost	4,542
Held-to-Maturity Securities, After ten years, Amortized Cost	0
Held-to-Maturity Securities, One year or less, Fair Value	817
Held-to-Maturity Securities, One year to five years, Fair Value	257
Held-to-Maturity Securities, Five years to ten years, Fair Value	4,536
Held-to-Maturity Securities, After ten years, Fair Value	0
Collateralized mortgage obligations [Member]
Investment [Line Items]
Available-For-Sale Securities, All other securities, Without Single Maturity Date, Amortized Cost	113,215
Available-For-Sale Securities, Amortized Cost	113,215	132,633
Available-For-Sale Securities, All other securities, Without Single Maturity Date, Fair Value	117,097
Securities available-for-sale, at fair value	117,097	136,933
Held-to-Maturity Securities, All other securities, Without Single Maturity Date, Amortized Cost	56,341
Securities Held-to-Maturity, Amortized Cost	56,341	59,960
Held-to-Maturity Securities, All other securities, Without Single Maturity Date, Fair Value	54,490
Securities Held-to-Maturity, Fair Value	54,490	57,943
Residential mortgage-backed securities [Member]
Investment [Line Items]
Available-For-Sale Securities, All other securities, Without Single Maturity Date, Amortized Cost	835,105
Available-For-Sale Securities, Amortized Cost	835,105	822,746
Available-For-Sale Securities, All other securities, Without Single Maturity Date, Fair Value	853,363
Securities available-for-sale, at fair value	853,363	846,078
Held-to-Maturity Securities, All other securities, Without Single Maturity Date, Amortized Cost	928,158
Securities Held-to-Maturity, Amortized Cost	928,158	885,235
Held-to-Maturity Securities, All other securities, Without Single Maturity Date, Fair Value	930,403
Securities Held-to-Maturity, Fair Value	930,403	892,162
Commercial mortgage-backed securities [Member]
Investment [Line Items]
Available-For-Sale Securities, All other securities, Without Single Maturity Date, Amortized Cost	0
Available-For-Sale Securities, All other securities, Without Single Maturity Date, Fair Value	0
Held-to-Maturity Securities, All other securities, Without Single Maturity Date, Amortized Cost	209,010
Securities Held-to-Maturity, Amortized Cost	209,010	183,021
Held-to-Maturity Securities, All other securities, Without Single Maturity Date, Fair Value	207,957
Securities Held-to-Maturity, Fair Value	$ 207,957	$ 181,437

Securities (Securities Gains (L

Securities (Securities Gains (Losses)) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Gain (Loss) on Investments [Line Items]
Proceeds from sales	$ 1,415	$ 26,172	$ 30,346	$ 73,649
Gross realized gains	19	213	557	610
Gross realized losses	(20)	(17)	(24)	(83)
Net realized gains (losses)	(1)	196	533	527
Income tax provision (benefit) on net realized gains (losses)	$ 0	$ 77	$ 210	$ 208

Loans and Credit Quality (Loan

Loans and Credit Quality (Loan Portfolio) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Loans [Line Items]
Commercial and industrial	$ 6,397,736	$ 5,996,070
Commercial - owner-occupied CRE	2,048,489	1,892,564
Total commercial	8,446,225	7,888,634
Commercial real estate	2,432,608	2,323,616
Commercial real estate - multi-family	561,924	593,103
Total Commercial real estate	2,994,532	2,916,719
Construction	371,096	381,102
Residential real estate	415,826	361,565
Home equity	137,461	142,177
Personal	178,141	202,022
Total loans	12,543,281	11,892,219	$ 11,136,942
Net deferred loan fees and unamortized discount and premium on loans, included as a reduction in total loans	45,138	47,017
Overdrawn demand deposits included in total loans	$ 1,149	$ 1,963

LOANS AND CREDIT QUALITY Loans

LOANS AND CREDIT QUALITY Loans and Credit Quality (Loans Held-For-Sale) (Details) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Loans Held-for-Sale [Abstract]
Mortgage loans held-for-sale	[1]	$ 24,414	$ 42,215
Other loans held-for-sale	[2]	29,849	72,946
Total loans held-for-sale		$ 54,263	$ 115,161
[1]	Comprised of residential mortgage loan originations intended to be sold in the secondary market. The Company accounts for these loans under the fair value option. Refer to Note 16 for additional information regarding mortgage loans held-for-sale.
[2]	Amounts at June 30, 2015, represent commercial and commercial real estate loans carried at the lower of aggregate cost or fair value. Generally, the Company intends to sell these loans within 30-60 days from the date the intent to sell was established. Amounts at December 31, 2014, consist of $36.6 million of commercial, commercial real estate and construction loans carried at the lower of aggregate cost or fair value and $36.3 million of commercial, commercial real estate, construction, home equity and personal loans held-for-sale in connection with the sale of the Company's banking office located in Norcross, Georgia, which closed in January 2015.

Loans and Credit Quality (Narra

Loans and Credit Quality (Narrative) (Detail)		6 Months Ended
		Jun. 30, 2015USD ($)risk_rating	Jun. 30, 2014USD ($)	Dec. 31, 2014USD ($)
Loans [Line Items]
Loans Held-for-sale, Other	[1]	$ 29,849,000		$ 72,946,000
Loans and leases receivable, impaired, commitment to lend		14,000,000		8,500,000
Specific reserves on nonaccrual troubled debt restructurings		3,800,000		10,600,000
Specific reserves on accruing troubled debt restructurings		0		0
OREO Recorded Investment of Consumer Mortgage Loans Secured by Residential Real Estate Properties For Which Foreclosure Proceedings Are In Process		5,300,000		5,500,000
Covered Assets Recorded Investment of Properties For Which Foreclosure Proceedings Are In Process		531,000		856,000
Commercial real estate [Member]
Loans [Line Items]
Recorded Investment		$ 0	$ 699,000
Pass [Member] | Minimum [Member]
Loans [Line Items]
Loans receivable risk rating | risk_rating		1
Non-Performing Loans [Member] | Maximum [Member]
Loans [Line Items]
Loans receivable risk rating | risk_rating		8
Loan Rated Five [Member] | Maximum [Member]
Loans [Line Items]
Loans receivable risk rating | risk_rating		5
Special Mention [Member]
Loans [Line Items]
Loans receivable risk rating | risk_rating		6
Potential Problem and Non-Performing [Member]
Loans [Line Items]
Loans receivable risk rating | risk_rating		7
Participating Mortgages [Member]
Loans [Line Items]
Loans Held-for-sale, Other		$ 29,800,000		36,600,000
Branch Closing, Sale [Member]
Loans [Line Items]
Loans Held-for-sale, Other				$ 36,300,000
[1]	Amounts at June 30, 2015, represent commercial and commercial real estate loans carried at the lower of aggregate cost or fair value. Generally, the Company intends to sell these loans within 30-60 days from the date the intent to sell was established. Amounts at December 31, 2014, consist of $36.6 million of commercial, commercial real estate and construction loans carried at the lower of aggregate cost or fair value and $36.3 million of commercial, commercial real estate, construction, home equity and personal loans held-for-sale in connection with the sale of the Company's banking office located in Norcross, Georgia, which closed in January 2015.

Loans and Credit Quality (Carry

Loans and Credit Quality (Carrying Value Of Loans Pledged) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Loans pledged to secure outstanding borrowings or availability: [Abstract]
Loans pledged to secure FRB discount window borrowings availability	[1]	$ 431,488	$ 478,692
Loans pledged to secure FHLB advances	[2]	1,845,935	1,576,168
Total		$ 2,277,423	$ 2,054,860
[1]	No borrowings were outstanding at June 30, 2015, or December 31, 2014.
[2]	Refer to Notes 7 and 8 for additional information regarding FHLB advances.

Loans and Credit Quality (Loa51

Loans and Credit Quality (Loan Portfolio Aging) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Loans [Line Items]
Loan Portfolio Aging, Current	$ 12,483,884	$ 11,812,859
Loan Portfolio Aging, 30 - 59 Days Past Due	2,151	7,696
Loan Portfolio Aging, 60 - 89 Days Past Due	672	4,120
Loan Portfolio Aging, 90 Days Past Due and Accruing	0	0
Loan Portfolio Aging, Total Accruing Loans	12,486,707	11,824,675
Loan Portfolio Aging, Nonaccrual	56,574	67,544
Total Commercial	8,446,225	7,888,634
Total Commercial real estate	2,994,532	2,916,719
Total Construction	371,096	381,102
Total Residential real estate	415,826	361,565
Total Home equity	137,461	142,177
Total Personal	178,141	202,022
Total loans	12,543,281	11,892,219	$ 11,136,942
Commercial [Member]
Loans [Line Items]
Loan Portfolio Aging, Current	8,416,607	7,855,833
Loan Portfolio Aging, 30 - 59 Days Past Due	1,561	762
Loan Portfolio Aging, 60 - 89 Days Past Due	212	992
Loan Portfolio Aging, 90 Days Past Due and Accruing	0	0
Loan Portfolio Aging, Total Accruing Loans	8,418,380	7,857,587
Loan Portfolio Aging, Nonaccrual	27,845	31,047
Total loans	8,446,225		7,571,286
Commercial real estate [Member]
Loans [Line Items]
Loan Portfolio Aging, Current	2,981,091	2,891,301
Loan Portfolio Aging, 30 - 59 Days Past Due	0	5,408
Loan Portfolio Aging, 60 - 89 Days Past Due	0	261
Loan Portfolio Aging, 90 Days Past Due and Accruing	0	0
Loan Portfolio Aging, Total Accruing Loans	2,981,091	2,896,970
Loan Portfolio Aging, Nonaccrual	13,441	19,749
Total loans	2,994,532		2,519,127
Construction [Member]
Loans [Line Items]
Loan Portfolio Aging, Current	371,096	380,939
Loan Portfolio Aging, 30 - 59 Days Past Due	0	163
Loan Portfolio Aging, 60 - 89 Days Past Due	0	0
Loan Portfolio Aging, 90 Days Past Due and Accruing	0	0
Loan Portfolio Aging, Total Accruing Loans	371,096	381,102
Loan Portfolio Aging, Nonaccrual	0	0
Total loans	371,096		360,313
Residential real estate [Member]
Loans [Line Items]
Loan Portfolio Aging, Current	411,251	354,717
Loan Portfolio Aging, 30 - 59 Days Past Due	0	943
Loan Portfolio Aging, 60 - 89 Days Past Due	459	631
Loan Portfolio Aging, 90 Days Past Due and Accruing	0	0
Loan Portfolio Aging, Total Accruing Loans	411,710	356,291
Loan Portfolio Aging, Nonaccrual	4,116	5,274
Total loans	415,826		337,329
Home equity [Member]
Loans [Line Items]
Loan Portfolio Aging, Current	125,741	128,500
Loan Portfolio Aging, 30 - 59 Days Past Due	572	397
Loan Portfolio Aging, 60 - 89 Days Past Due	0	2,236
Loan Portfolio Aging, 90 Days Past Due and Accruing	0	0
Loan Portfolio Aging, Total Accruing Loans	126,313	131,133
Loan Portfolio Aging, Nonaccrual	11,148	11,044
Total loans	137,461		144,081
Personal [Member]
Loans [Line Items]
Loan Portfolio Aging, Current	178,098	201,569
Loan Portfolio Aging, 30 - 59 Days Past Due	18	23
Loan Portfolio Aging, 60 - 89 Days Past Due	1	0
Loan Portfolio Aging, 90 Days Past Due and Accruing	0	0
Loan Portfolio Aging, Total Accruing Loans	178,117	201,592
Loan Portfolio Aging, Nonaccrual	24	$ 430
Total loans	$ 178,141		$ 204,806

Loans and Credit Quality (Impai

Loans and Credit Quality (Impaired Loans) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015		Dec. 31, 2014	Jun. 30, 2014
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance		$ 112,656		$ 106,095
Recorded Investment With No Specific Reserve		57,328		39,470
Recorded Investment With Specific Reserve		35,932		50,819
Total Recorded Investment		93,260	[1]	90,289	$ 109,571	[1]
Specific Reserve		7,468	[1]	16,627	18,487	[1]
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance		74,657		60,174
Recorded Investment With No Specific Reserve		49,519		25,739
Recorded Investment With Specific Reserve		13,258		26,432
Total Recorded Investment		62,777	[1]	52,171	64,851	[2]
Specific Reserve		2,889	[1]	11,487	11,113	[1]
Commercial real estate [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance		19,925		26,738
Recorded Investment With No Specific Reserve		3,824		9,755
Recorded Investment With Specific Reserve		9,617		10,193
Total Recorded Investment		13,441	[1]	19,948	23,173	[2]
Specific Reserve		2,102	[1]	2,441	4,879	[1]
Construction [Member]
Financing Receivable, Impaired [Line Items]
Total Recorded Investment		0	[1]		0	[2]
Specific Reserve	[1]	0			0
Residential real estate [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance		4,484		5,849
Recorded Investment With No Specific Reserve		0		349
Recorded Investment With Specific Reserve		4,116		4,925
Total Recorded Investment		4,116	[1]	5,274	9,337	[2]
Specific Reserve		606	[1]	735	630	[1]
Home equity [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance		13,566		12,904
Recorded Investment With No Specific Reserve		3,985		3,627
Recorded Investment With Specific Reserve		8,917		8,839
Total Recorded Investment		12,902	[1]	12,466	11,630	[2]
Specific Reserve		1,865	[1]	1,855	1,715	[1]
Personal [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance		24		430
Recorded Investment With No Specific Reserve		0		0
Recorded Investment With Specific Reserve		24		430
Total Recorded Investment		24	[1]	430	580	[2]
Specific Reserve		$ 6	[1]	$ 109	$ 150	[1]
[1]	Refer to Note 4 for additional information regarding impaired loans.
[2]	Deposit amounts represent the elimination of Holding Company cash accounts included in total deposits of the Banking segment.

Loans and Credit Quality (Avera

Loans and Credit Quality (Average Recorded Investment And Interest Income Recognized On Impaired Loans) (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	[1]	$ 91,619	$ 115,188	$ 90,220	$ 113,902
Interest Income Recognized	[1]	350	460	559	890
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	[1]	59,380	55,534	55,791	48,935
Interest Income Recognized	[1]	316	419	500	801
Commercial real estate [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	[1]	14,823	36,960	16,359	41,617
Interest Income Recognized	[1]	10	20	13	44
Residential real estate [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	[1]	4,454	9,481	4,676	9,700
Interest Income Recognized	[1]	0	0	0	0
Home equity [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	[1]	12,714	12,614	13,094	13,018
Interest Income Recognized	[1]	24	21	46	45
Personal [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	[1]	248	599	300	632
Interest Income Recognized	[1]	$ 0	$ 0	$ 0	$ 0
[1]	Represents amounts while classified as impaired for the periods presented.

Loans and Credit Quality (Credi

Loans and Credit Quality (Credit Quality Indicators) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Loans [Line Items]
Special Mention	$ 132,441	$ 100,989
Percentage of Special Mention to Portfolio Loan Type	1.10%	0.80%
Potential Problem Loans	$ 137,757	$ 87,442
Percentage of Potential Problem Loans to Portfolio Loan Type	1.10%	0.70%
Non-Performing Loans	$ 56,574	$ 67,544
Percentage of Non-Performing Loans to Portfolio Loan Type	0.50%	0.60%
Total Commercial	$ 8,446,225	$ 7,888,634
Total Commercial real estate	2,994,532	2,916,719
Total Construction	371,096	381,102
Total Residential real estate	415,826	361,565
Total Home equity	137,461	142,177
Total Personal	178,141	202,022
Total loans	12,543,281	11,892,219	$ 11,136,942
Commercial [Member]
Loans [Line Items]
Special Mention	$ 124,689	$ 93,130
Percentage of Special Mention to Portfolio Loan Type	1.50%	1.20%
Potential Problem Loans	$ 125,948	$ 78,562
Percentage of Potential Problem Loans to Portfolio Loan Type	1.50%	1.00%
Non-Performing Loans	$ 27,845	$ 31,047
Percentage of Non-Performing Loans to Portfolio Loan Type	0.30%	0.40%
Total loans	$ 8,446,225		7,571,286
Commercial real estate [Member]
Loans [Line Items]
Special Mention	83	$ 3,552
Percentage of Special Mention to Portfolio Loan Type		0.10%
Potential Problem Loans	$ 2,614	$ 746
Percentage of Potential Problem Loans to Portfolio Loan Type	0.10%
Non-Performing Loans	$ 13,441	$ 19,749
Percentage of Non-Performing Loans to Portfolio Loan Type	0.40%	0.70%
Total loans	$ 2,994,532		2,519,127
Construction [Member]
Loans [Line Items]
Special Mention	$ 0	$ 0
Percentage of Special Mention to Portfolio Loan Type	0.00%	0.00%
Potential Problem Loans	$ 0	$ 0
Percentage of Potential Problem Loans to Portfolio Loan Type	0.00%	0.00%
Non-Performing Loans	$ 0	$ 0
Percentage of Non-Performing Loans to Portfolio Loan Type	0.00%	0.00%
Total loans	$ 371,096		360,313
Residential real estate [Member]
Loans [Line Items]
Special Mention	$ 6,148	$ 2,964
Percentage of Special Mention to Portfolio Loan Type	1.50%	0.80%
Potential Problem Loans	$ 6,533	$ 5,981
Percentage of Potential Problem Loans to Portfolio Loan Type	1.60%	1.70%
Non-Performing Loans	$ 4,116	$ 5,274
Percentage of Non-Performing Loans to Portfolio Loan Type	1.00%	1.50%
Total loans	$ 415,826		337,329
Home equity [Member]
Loans [Line Items]
Special Mention	$ 806	$ 1,170
Percentage of Special Mention to Portfolio Loan Type	0.60%	0.80%
Potential Problem Loans	$ 2,618	$ 2,108
Percentage of Potential Problem Loans to Portfolio Loan Type	1.90%	1.50%
Non-Performing Loans	$ 11,148	$ 11,044
Percentage of Non-Performing Loans to Portfolio Loan Type	8.10%	7.80%
Total loans	$ 137,461		144,081
Personal [Member]
Loans [Line Items]
Special Mention	$ 715	$ 173
Percentage of Special Mention to Portfolio Loan Type	0.40%	0.10%
Potential Problem Loans	$ 44	$ 45
Non-Performing Loans	24	$ 430
Percentage of Non-Performing Loans to Portfolio Loan Type		0.20%
Total loans	$ 178,141		$ 204,806

Loans and Credit Quality (Troub

Loans and Credit Quality (Troubled Debt Restructured Loans Outstanding) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Accruing [Member]
Troubled Debt Restructured Loans Outstanding [Line Items]
Troubled debt restructured loans outstanding		$ 36,686	$ 22,745
Accruing [Member] | Commercial [Member]
Troubled Debt Restructured Loans Outstanding [Line Items]
Troubled debt restructured loans outstanding		34,932	21,124
Accruing [Member] | Commercial real estate [Member]
Troubled Debt Restructured Loans Outstanding [Line Items]
Troubled debt restructured loans outstanding		0	199
Accruing [Member] | Residential real estate [Member]
Troubled Debt Restructured Loans Outstanding [Line Items]
Troubled debt restructured loans outstanding		0	0
Accruing [Member] | Home equity [Member]
Troubled Debt Restructured Loans Outstanding [Line Items]
Troubled debt restructured loans outstanding		1,754	1,422
Accruing [Member] | Personal [Member]
Troubled Debt Restructured Loans Outstanding [Line Items]
Troubled debt restructured loans outstanding		0	0
Nonaccrual [Member]
Troubled Debt Restructured Loans Outstanding [Line Items]
Troubled debt restructured loans outstanding	[1]	25,739	36,298
Nonaccrual [Member] | Commercial [Member]
Troubled Debt Restructured Loans Outstanding [Line Items]
Troubled debt restructured loans outstanding	[1]	7,944	20,113
Nonaccrual [Member] | Commercial real estate [Member]
Troubled Debt Restructured Loans Outstanding [Line Items]
Troubled debt restructured loans outstanding	[1]	10,638	8,005
Nonaccrual [Member] | Residential real estate [Member]
Troubled Debt Restructured Loans Outstanding [Line Items]
Troubled debt restructured loans outstanding	[1]	1,325	1,881
Nonaccrual [Member] | Home equity [Member]
Troubled Debt Restructured Loans Outstanding [Line Items]
Troubled debt restructured loans outstanding	[1]	5,832	5,886
Nonaccrual [Member] | Personal [Member]
Troubled Debt Restructured Loans Outstanding [Line Items]
Troubled debt restructured loans outstanding	[1]	$ 0	$ 413
[1]	Included in nonperforming loans.

Loans and Credit Quality (Addit

Loans and Credit Quality (Additions To TDR During The Period) (Detail) $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2015USD ($)borrower		Jun. 30, 2014USD ($)borrower		Jun. 30, 2015USD ($)borrower	Jun. 30, 2014USD ($)borrower
Accruing Interest [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		5		2		6	5
Recorded Investment, Pre-Modification	[1]	$ 13,761		$ 6,188		$ 16,155	$ 19,755
Recorded Investment, Post-Modification	[1]	13,480		6,188		15,874	19,755
Change in recorded investment due to principal paydown (advances) at time of modification		$ 281		$ 0		$ 281	$ 0
Accruing Interest [Member] | Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		4		2		5	4
Recorded Investment, Pre-Modification	[1]	$ 13,415		$ 6,188		$ 15,809	$ 19,329
Recorded Investment, Post-Modification	[1]	$ 13,134		$ 6,188		$ 15,528	$ 19,329
Accruing Interest [Member] | Commercial [Member] | Extension of maturity date [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		4		1		5	2
Recorded Investment, Pre-Modification	[1],[2]	$ 13,415		$ 3,550		$ 15,809	$ 3,750
Recorded Investment, Post-Modification	[1],[2]	$ 13,134		$ 3,550		$ 15,528	$ 3,750
Accruing Interest [Member] | Commercial [Member] | Other concession [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		0		1		0	2
Recorded Investment, Pre-Modification	[1],[3]	$ 0		$ 2,638		$ 0	$ 15,579
Recorded Investment, Post-Modification	[1],[3]	$ 0		$ 2,638		$ 0	$ 15,579
Accruing Interest [Member] | Commercial real estate [Member] | Other concession [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower						0	1
Recorded Investment, Pre-Modification	[1],[3]					$ 0	$ 426
Recorded Investment, Post-Modification	[1],[3]					$ 0	$ 426
Accruing Interest [Member] | Home equity [Member] | Extension of maturity date [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		1		0		1	0
Recorded Investment, Pre-Modification	[1],[2]	$ 346		$ 0		$ 346	$ 0
Recorded Investment, Post-Modification	[1],[2]	$ 346		$ 0		$ 346	$ 0
Non Accrual [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		8		6		14	12
Recorded Investment, Pre-Modification	[1]	$ 4,860		$ 2,152		$ 11,130	$ 3,467
Recorded Investment, Post-Modification	[1]	4,855		2,152		11,031	3,417
Change in recorded investment due to principal paydown (advances) at time of modification		$ 5	[1]	$ 0	[1]	$ 99	$ 50
Non Accrual [Member] | Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		5		2		6	4
Recorded Investment, Pre-Modification	[1]	$ 4,690		$ 97		$ 5,363	$ 553
Recorded Investment, Post-Modification	[1]	$ 4,690		$ 97		$ 5,356	$ 503
Non Accrual [Member] | Commercial [Member] | Extension of maturity date [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		4		0		4	0
Recorded Investment, Pre-Modification	[1],[2]	$ 2,583		$ 0		$ 2,583	$ 0
Recorded Investment, Post-Modification	[1],[2]	$ 2,583		$ 0		$ 2,583	$ 0
Non Accrual [Member] | Commercial [Member] | Other concession [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		1		2		2	4
Recorded Investment, Pre-Modification	[1],[3]	$ 2,107		$ 97		$ 2,780	$ 553
Recorded Investment, Post-Modification	[1],[3]	$ 2,107		$ 97		$ 2,773	$ 503
Non Accrual [Member] | Commercial real estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower						3	1
Recorded Investment, Pre-Modification	[1]					$ 5,520	$ 1,120
Recorded Investment, Post-Modification	[1]					$ 5,433	$ 1,120
Non Accrual [Member] | Commercial real estate [Member] | Extension of maturity date [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower						2	0
Recorded Investment, Pre-Modification	[1],[2]					$ 1,747	$ 0
Recorded Investment, Post-Modification	[1],[2]					$ 1,660	$ 0
Non Accrual [Member] | Commercial real estate [Member] | Other concession [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		0		1		1	1
Recorded Investment, Pre-Modification	[1],[3]	$ 0		$ 1,120		$ 3,773	$ 1,120
Recorded Investment, Post-Modification	[1],[3]	$ 0		$ 1,120		$ 3,773	$ 1,120
Non Accrual [Member] | Residential real estate [Member] | Other concession [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		0		1		0	3
Recorded Investment, Pre-Modification	[1],[3]	$ 0		$ 70		$ 0	$ 565
Recorded Investment, Post-Modification	[1],[3]	$ 0		$ 70		$ 0	$ 565
Non Accrual [Member] | Home equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		3		2		5	4
Recorded Investment, Pre-Modification	[1]	$ 170		$ 865		$ 247	$ 1,229
Recorded Investment, Post-Modification	[1]	$ 165		$ 865		$ 242	$ 1,229
Non Accrual [Member] | Home equity [Member] | Extension of maturity date [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		3		0		3	1
Recorded Investment, Pre-Modification	[1],[2]	$ 170		$ 0		$ 170	$ 114
Recorded Investment, Post-Modification	[1],[2]	$ 165		$ 0		$ 165	$ 114
Non Accrual [Member] | Home equity [Member] | Other concession [Member]
Financing Receivable, Modifications [Line Items]
Number of Borrowers | borrower		0		2		2	3
Recorded Investment, Pre-Modification	[1],[3]	$ 0		$ 865		$ 77	$ 1,115
Recorded Investment, Post-Modification	[1],[3]	$ 0		$ 865		$ 77	$ 1,115
[1]	Represents amounts as of the date immediately prior to and immediately after the modification is effective.
[2]	Extension of maturity date also includes loans renewed at an existing rate of interest that is considered a below market rate for that particular loan’s risk profile.
[3]	Other concessions primarily include interest rate reductions, loan increases or deferrals of principal.

LOANS AND CREDIT QUALITY Loan57

LOANS AND CREDIT QUALITY Loans and Credit Quality (OREO Composition) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
OREO [Line Items]
Other real estate owned (OREO)	$ 15,084	$ 17,416
Single-Family Homes [Member]
OREO [Line Items]
Other real estate owned (OREO)	7,494	7,902
Land Parcels [Member]
OREO [Line Items]
Other real estate owned (OREO)	3,807	4,237
Multi-Family [Member]
OREO [Line Items]
Other real estate owned (OREO)	1,026	488
Office/Industrial [Member]
OREO [Line Items]
Other real estate owned (OREO)	1,734	3,832
Retail [Member]
OREO [Line Items]
Other real estate owned (OREO)	$ 1,023	$ 957

LOANS AND CREDIT QUALITY Loan58

LOANS AND CREDIT QUALITY Loans and Credit Quality (Covered Assets) (Details) - USD ($)		Jun. 30, 2015	Dec. 31, 2014
Disclosure Covered Assets Carrying Amount Of Covered Assets [Abstract]
Residential mortgage loans	[1]	$ 28,259,000	$ 32,182,000
Foreclosed real estate - single family homes		159,000	187,000
Estimated loss reimbursement by the FDIC		2,111,000	1,763,000
Covered assets		30,529,000	34,132,000
Allowance for covered loan losses		(6,332,000)	(5,191,000)
Net covered assets		24,197,000	28,941,000
Purchased credit-impaired loans		$ 264,000	$ 420,000
[1]	Includes $264,000 and $420,000 of purchased credit-impaired loans as of June 30, 2015, and December 31, 2014, respectively.

Allowance For Loan Losses And59

Allowance For Loan Losses And Reserve For Unfunded Commitments (Allowance For Loan Losses and Recorded Investment in Loans) (Detail) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2015		Jun. 30, 2014		Dec. 31, 2014
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period		$ 156,610		$ 146,768		$ 152,498		$ 143,109
Loans charged-off		(3,241)		(4,685)		(6,748)		(9,566)
Recoveries on loans previously charged-off		1,626		2,397		3,754		7,488
Net recoveries (charge-offs)		(1,615)		(2,288)		(2,994)		(2,078)
Provision (release) for loan losses		2,056		2,011		7,547		5,460
Balance at end of period		157,051		146,491		157,051		146,491
Ending balance, loans individually evaluated for impairment		7,468	[1]	18,487	[1]	7,468	[1]	18,487	[1]	$ 16,627
Ending balance, loans collectively evaluated for impairment		149,583		128,004		149,583		128,004
Recorded Investment in Loans: [Abstract]
Recorded Investment in Loans, Ending balance, loans individually evaluated for impairment		93,260	[1]	109,571	[1]	93,260	[1]	109,571	[1]	90,289
Recorded Investment in Loans, Ending balance, loans collectively evaluated for impairment		12,450,021		11,027,371		12,450,021		11,027,371
Total loans		12,543,281		11,136,942		12,543,281		11,136,942		11,892,219
Commercial [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period		108,873		90,080		103,462		80,768
Loans charged-off		(2,921)		(2,142)		(5,123)		(3,629)
Recoveries on loans previously charged-off		984		813		1,495		4,475
Net recoveries (charge-offs)		(1,937)		(1,329)		(3,628)		846
Provision (release) for loan losses		6,208		7,575		13,310		14,712
Balance at end of period		113,144		96,326		113,144		96,326
Ending balance, loans individually evaluated for impairment		2,889	[1]	11,113	[1]	2,889	[1]	11,113	[1]	11,487
Ending balance, loans collectively evaluated for impairment		110,255		85,213		110,255		85,213
Recorded Investment in Loans: [Abstract]
Recorded Investment in Loans, Ending balance, loans individually evaluated for impairment		62,777	[1]	64,851	[2]	62,777	[1]	64,851	[2]	52,171
Recorded Investment in Loans, Ending balance, loans collectively evaluated for impairment		8,383,448		7,506,435		8,383,448		7,506,435
Total loans		8,446,225		7,571,286		8,446,225		7,571,286
Commercial real estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period		31,606		37,575		31,838		42,362
Loans charged-off		(98)		(2,082)		(985)		(4,664)
Recoveries on loans previously charged-off		272		1,360		870		2,048
Net recoveries (charge-offs)		174		(722)		(115)		(2,616)
Provision (release) for loan losses		(3,570)		(3,554)		(3,513)		(6,447)
Balance at end of period		28,210		33,299		28,210		33,299
Ending balance, loans individually evaluated for impairment		2,102	[1]	4,879	[1]	2,102	[1]	4,879	[1]	2,441
Ending balance, loans collectively evaluated for impairment		26,108		28,420		26,108		28,420
Recorded Investment in Loans: [Abstract]
Recorded Investment in Loans, Ending balance, loans individually evaluated for impairment		13,441	[1]	23,173	[2]	13,441	[1]	23,173	[2]	19,948
Recorded Investment in Loans, Ending balance, loans collectively evaluated for impairment		2,981,091		2,495,954		2,981,091		2,495,954
Total loans		2,994,532		2,519,127		2,994,532		2,519,127
Construction [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period		4,026		3,547		4,290		3,338
Loans charged-off		0		0		0		0
Recoveries on loans previously charged-off		164		9		183		16
Net recoveries (charge-offs)		164		9		183		16
Provision (release) for loan losses		(374)		65		(657)		267
Balance at end of period		3,816		3,621		3,816		3,621
Ending balance, loans individually evaluated for impairment	[1]	0		0		0		0
Ending balance, loans collectively evaluated for impairment		3,816		3,621		3,816		3,621
Recorded Investment in Loans: [Abstract]
Recorded Investment in Loans, Ending balance, loans individually evaluated for impairment		0	[1]	0	[2]	0	[1]	0	[2]
Recorded Investment in Loans, Ending balance, loans collectively evaluated for impairment		371,096		360,313		371,096		360,313
Total loans		371,096		360,313		371,096		360,313
Residential real estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period		5,223		6,978		5,316		7,555
Loans charged-off		(194)		(180)		(231)		(415)
Recoveries on loans previously charged-off		47		135		104		435
Net recoveries (charge-offs)		(147)		(45)		(127)		20
Provision (release) for loan losses		181		(1,653)		68		(2,295)
Balance at end of period		5,257		5,280		5,257		5,280
Ending balance, loans individually evaluated for impairment		606	[1]	630	[1]	606	[1]	630	[1]	735
Ending balance, loans collectively evaluated for impairment		4,651		4,650		4,651		4,650
Recorded Investment in Loans: [Abstract]
Recorded Investment in Loans, Ending balance, loans individually evaluated for impairment		4,116	[1]	9,337	[2]	4,116	[1]	9,337	[2]	5,274
Recorded Investment in Loans, Ending balance, loans collectively evaluated for impairment		411,710		327,992		411,710		327,992
Total loans		415,826		337,329		415,826		337,329
Home equity [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period		4,588		5,500		4,924		5,648
Loans charged-off		0		(268)		(371)		(715)
Recoveries on loans previously charged-off		73		60		143		88
Net recoveries (charge-offs)		73		(208)		(228)		(627)
Provision (release) for loan losses		(46)		(277)		(81)		(6)
Balance at end of period		4,615		5,015		4,615		5,015
Ending balance, loans individually evaluated for impairment		1,865	[1]	1,715	[1]	1,865	[1]	1,715	[1]	1,855
Ending balance, loans collectively evaluated for impairment		2,750		3,300		2,750		3,300
Recorded Investment in Loans: [Abstract]
Recorded Investment in Loans, Ending balance, loans individually evaluated for impairment		12,902	[1]	11,630	[2]	12,902	[1]	11,630	[2]	12,466
Recorded Investment in Loans, Ending balance, loans collectively evaluated for impairment		124,559		132,451		124,559		132,451
Total loans		137,461		144,081		137,461		144,081
Personal [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period		2,294		3,088		2,668		3,438
Loans charged-off		(28)		(13)		(38)		(143)
Recoveries on loans previously charged-off		86		20		959		426
Net recoveries (charge-offs)		58		7		921		283
Provision (release) for loan losses		(343)		(145)		(1,580)		(771)
Balance at end of period		2,009		2,950		2,009		2,950
Ending balance, loans individually evaluated for impairment		6	[1]	150	[1]	6	[1]	150	[1]	109
Ending balance, loans collectively evaluated for impairment		2,003		2,800		2,003		2,800
Recorded Investment in Loans: [Abstract]
Recorded Investment in Loans, Ending balance, loans individually evaluated for impairment		24	[1]	580	[2]	24	[1]	580	[2]	$ 430
Recorded Investment in Loans, Ending balance, loans collectively evaluated for impairment		178,117		204,226		178,117		204,226
Total loans		$ 178,141		$ 204,806		$ 178,141		$ 204,806
[1]	Refer to Note 4 for additional information regarding impaired loans.
[2]	Deposit amounts represent the elimination of Holding Company cash accounts included in total deposits of the Banking segment.

Allowance For Loan Losses And60

Allowance For Loan Losses And Reserve For Unfunded Commitments (Reserve For Unfunded Commitments) (Detail) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2015	Jun. 30, 2014
Reserve for Unfunded Commitments [Roll Forward]
Balance at beginning of period	[1]	$ 12,650		$ 9,702		$ 12,274	$ 9,206
Provision (release) for unfunded commitments		507	[1]	(339)	[1]	883	157	[1]
Balance at end of period	[1]	13,157		9,363		13,157	9,363
Unfunded commitments, excluding covered assets, at period end	[1]	$ 6,135,242		$ 4,957,324		$ 6,135,242	$ 4,957,324
[1]	Unfunded commitments include commitments to extend credit, standby letters of credit and commercial letters of credit. Unfunded commitments related to covered assets are excluded as they are covered under a loss sharing agreement with the FDIC.

Goodwill And Other Intangible61

Goodwill And Other Intangible Assets (Changes In The Carrying Amount Of Goodwill By Operating Segment) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Goodwill [Line Items]
Goodwill	$ 94,041	$ 94,041
Banking [Member]
Goodwill [Line Items]
Goodwill	81,755	81,755
Asset Management [Member]
Goodwill [Line Items]
Goodwill	$ 12,286	$ 12,286

Goodwill And Other Intangible62

Goodwill And Other Intangible Assets (Narrative) (Detail) - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Total
Goodwill And Other Intangible Assets [Line Items]
Goodwill, Impairment Loss	$ 0
Impairment of intangible assets	$ 0
Minimum [Member]
Goodwill And Other Intangible Assets [Line Items]
Intangible assets amortized estimated useful lives	8 years
Maximum [Member]
Goodwill And Other Intangible Assets [Line Items]
Intangible assets amortized estimated useful lives	12 years

Goodwill And Other Intangible63

Goodwill And Other Intangible Assets (Other Intangible Assets) (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Goodwill And Other Intangible Assets [Line Items]
Amortization during the period	$ 1,299	$ 1,511
Core Deposits Intangibles [Member]
Goodwill And Other Intangible Assets [Line Items]
Gross Carrying Amount	18,093		$ 18,093
Accumulated Amortization	14,066		12,870
Net carrying amount	4,027		5,223
Amortization during the period	$ 1,196		$ 2,799
Weighted average remaining life (in years)	2 years		2 years
Customer Relationships [Member]
Goodwill And Other Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,002		$ 2,002
Accumulated Amortization	1,443		1,340
Net carrying amount	559		662
Amortization during the period	$ 103		$ 208
Weighted average remaining life (in years)	6 years		6 years

Goodwill And Other Intangible64

Goodwill And Other Intangible Assets (Scheduled Amortization Of Other Intangible Assets) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Finite-Lived Intangible Assets, Amortization Expense, Remaining Months	$ 1,156
2,016	2,161
2,017	1,125
2,018	98
2,019	28
2020 and thereafter	18
Total	$ 4,586	$ 5,885

Short-Term Borrowings (Summary

Short-Term Borrowings (Summary Of Short-Term Borrowings) (Detail) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2015	Dec. 31, 2014
Outstanding: [Abstract]
Repurchase agreements		$ 150,801
FHLB advances, Short-term		277,000	$ 428,000
Secured borrowings		$ 6,894	$ 4,385
Secured borrowings, Interest rate		4.05%	4.45%
Short-term borrowings		$ 434,695	$ 432,385
Other Information: [Abstract]
Unused FHLB advances availability		541,112	265,529
Unused overnight Federal funds availability	[1]	630,500	630,500
Borrowing capacity through the FRB discount window primary credit program	[2]	$ 374,067	$ 403,752
Narrative: [Abstract]
Repurchase Agreements, Maturities		P7D
Securities Sold under Agreements to Repurchase, Fair Value of Collateral		$ 158,300
FHLB advances borrowing capacity		$ 1,211,400
Revolving Line of Credit, Conversion to Term Loan, Conversion Date		Sep. 25, 2015
Revolving Line of Credit, Conversion to Term Loan, Loan Interest Option Increment Over Libor		1.95%
Revolving Line of Credit, Conversion to Term Loan, Loan Interest Option Increment Under PRIME		0.50%
Revolving Line of Credit, Conversion to Term Loan, Term Loan Due Date		Sep. 26, 2017
Revolving Credit Facility [Member]
Narrative: [Abstract]
Revolving Line of Credit, maximum borrowing capacity		$ 60,000
Revolving Line of Credit, Amount Outstanding		0
Federal Home Loan Bank of Atlanta [Member]
Outstanding: [Abstract]
FHLB advances, Short-term		2,000
Narrative: [Abstract]
FHLB Advances		7,000
Federal Home Loan Bank of Chicago [Member]
Outstanding: [Abstract]
FHLB advances, Short-term		275,000
Narrative: [Abstract]
FHLB Advances		$ 670,000
Short-term Debt [Member]
Outstanding: [Abstract]
Repurchase agreements, Rate		0.45%
FHLB advances, Short-term Rate		0.16%	0.13%
[1]	Our total availability of overnight Federal fund ("fed funds") borrowings is not a committed line of credit and is dependent upon lender availability.
[2]	Our borrowing capacity changes each quarter subject to available collateral and FRB discount factors.

LONG-TERM DEBT Long-Term Debt66

LONG-TERM DEBT Long-Term Debt (Schedule of Long-Term Debt) (Details) - USD ($) $ in Thousands		3 Months Ended
		Jun. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Long-term debt		$ 694,788	$ 344,788
Three Month Libor Plus Two Point Six Five Percentage [Member]
Debt Instrument [Line Items]
Increment Over Libor Of Long Term Debt		2.65%
Three Month Libor Plus One Point Seven One Percentage [Member]
Debt Instrument [Line Items]
Increment Over Libor Of Long Term Debt		1.71%
Three Month Libor Plus One Point Five Zero Percentage [Member]
Debt Instrument [Line Items]
Increment Over Libor Of Long Term Debt		1.50%
Parent Company [Member]
Debt Instrument [Line Items]
Long-term debt		$ 294,788	294,788
Parent Company [Member] | Three Month Libor Plus Two Point Six Five Percentage [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[1]	2.93%
Subordinated Borrowing, Due Date		Jun. 17, 2034
Junior subordinated debentures	[1],[2]	$ 8,248	8,248
Parent Company [Member] | Three Month Libor Plus One Point Seven One Percentage [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[3]	2.00%
Subordinated Borrowing, Due Date		Sep. 15, 2035
Junior subordinated debentures	[2],[3]	$ 51,547	51,547
Parent Company [Member] | Three Month Libor Plus One Point Five Zero Percentage [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[4]	1.79%
Subordinated Borrowing, Due Date		Dec. 15, 2035
Junior subordinated debentures	[2],[4]	$ 41,238	41,238
Parent Company [Member] | Ten Point Zero Zero Percentage Junior Subordinated Debentures Due Two Zero Six Eight [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[2]	10.00%
Subordinated Borrowing, Due Date		Jun. 15, 2068
Junior subordinated debentures	[2]	$ 68,755	68,755
Parent Company [Member] | Seven Point One Two Five Percentage Subordinated Debentures Due Two Zero Four Two [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[5]	7.125%
Subordinated Borrowing, Due Date		Oct. 30, 2042
Subordinated debentures	[5]	$ 125,000	125,000
Subsidiaries [Member]
Debt Instrument [Line Items]
FHLB advances, long-term		$ 400,000	$ 50,000
[1]	Variable rate in effect at June 30, 2015, based on three-month LIBOR +2.65%.
[2]	Under the final regulatory capital rules issued in July 2013, these instruments are grandfathered for inclusion as a component of Tier 1 capital, although the Tier 1 capital treatment for these instruments could be subject to phase-out due to certain acquisitions.
[3]	Variable rate in effect at June 30, 2015, based on three-month LIBOR +1.71%.
[4]	Variable rate in effect at June 30, 2015, based on three-month LIBOR +1.50%.
[5]	Qualifies as Tier 2 capital for regulatory capital purposes.

LONG-TERM DEBT Long-term Debt67

LONG-TERM DEBT Long-term Debt (Narrative) (Details) $ in Thousands		Jun. 30, 2015USD ($)trust	Dec. 31, 2014USD ($)
Debt [Line Items]
Number of wholly-owned trusts		4
Parent Company [Member]
Debt [Line Items]
Junior subordinated debentures | $	[1]	$ 169,788	$ 169,788
[1]	The Trust Preferred Securities are subject to mandatory redemption, in whole or in part, upon repayment of the Debentures at maturity or upon their earlier redemption in whole or in part. The Debentures are redeemable in whole or in part prior to maturity at any time after the dates shown in the table and only after we have obtained Federal Reserve approval, if then required under applicable guidelines or regulations.

LONG-TERM DEBT Maturity and Rat

LONG-TERM DEBT Maturity and Rate Schedule for FHLB Long-Term Advances (Details) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
September 2016 FHLB Advance Increase Option Date [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
Forward Commitment Advance with FHLB		$ 150,000
December 2016 FHLB Advance Increase Option Date [Member] [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
Forward Commitment Advance with FHLB		$ 150,000
Long-term Debt [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Weighted Average Interest Rate		0.55%
Subsidiaries [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
FHLB advances, long-term		$ 400,000	$ 50,000
June 5, 2107 [Member] | Subsidiaries [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
FHLB advances, long-term		$ 350,000
Debt Instrument, Interest Rate, Stated Percentage		0.10%
March 25, 2019 [Member] | Subsidiaries [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
FHLB advances, long-term		$ 2,000
March 25, 2019 [Member] | Subsidiaries [Member] | Federal Home Loan Bank Advances [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.26%
May 22, 2019 [Member] | Subsidiaries [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
FHLB advances, long-term		$ 3,000
May 22, 2019 [Member] | Subsidiaries [Member] | Federal Home Loan Bank Advances [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.68%
September 12, 2019 [Member] | Subsidiaries [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
FHLB advances, long-term	[1]	$ 15,000
September 12, 2019 [Member] | Subsidiaries [Member] | Federal Home Loan Bank Advances [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[1]	3.72%
September 26, 2019 [Member] | Subsidiaries [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
FHLB advances, long-term	[1]	$ 15,000
September 26, 2019 [Member] | Subsidiaries [Member] | Federal Home Loan Bank Advances [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[1]	3.69%
December 9, 2019 [Member] | Subsidiaries [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
FHLB advances, long-term	[2]	$ 15,000
December 9, 2019 [Member] | Subsidiaries [Member] | Federal Home Loan Bank Advances [Member]
Maturity and Rate Schedule of FHLB Long-term Advances [Table] [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[2]	3.58%
[1]	Provides for a one-time option to increase the advances in September 2016, up to $150.0 million each at the same fixed rate as the original advance. The advances include prepayment features and are subject to a prepayment fee.
[2]	Provides for a one-time option to increase the advances in December 2016, up to $150.0 million each at the same fixed rate as the original advance. The advances include prepayment features and are subject to a prepayment fee.

LONG-TERM DEBT Scheduled Maturi

LONG-TERM DEBT Scheduled Maturities of Long-Term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Year ending December 31, [Abstract]
2,017	$ 350,000
2,019	50,000
2020 and thereafter	294,788
Long-term debt	$ 694,788	$ 344,788

Junior Subordinated Deferrabl70

Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities (Narrative) (Detail) $ in Thousands		3 Months Ended	6 Months Ended
		Jun. 30, 2015USD ($)trust	Jun. 30, 2015USD ($)trust	Dec. 31, 2014USD ($)
Debt [Line Items]
Ownership percentage		100.00%	100.00%
Number of wholly-owned trusts | trust		4	4
PrivateBancorp Capital Trust IV [Member]
Debt [Line Items]
Junior subordinated debentures	[1]	$ 68,755	$ 68,755	$ 68,755
Debt Instrument, Covenant Description			Under the replacement capital covenant, as amended in October 2012, we committed, for the benefit of certain debt holders, that we would not repay, redeem or repurchase the 10% Debentures or the related Trust Preferred Securities prior to June 2048 unless we have (1) obtained any required regulatory approval, and (2) raised certain amounts of qualifying equity or equity-like replacement capital at any time after October 10, 2012.
Debt Instrument, Interest Rate, Stated Percentage	[2]	10.00%	10.00%
Parent Company [Member]
Debt [Line Items]
Junior subordinated debentures	[1]	$ 169,788	$ 169,788	$ 169,788
Parent Company [Member] | Seven Point One Two Five Percentage Subordinated Debentures Due Two Zero Four Two [Member]
Debt [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[3]	7.125%	7.125%
Subordinated Borrowing, Due Date		Oct. 30, 2042
[1]	The Trust Preferred Securities are subject to mandatory redemption, in whole or in part, upon repayment of the Debentures at maturity or upon their earlier redemption in whole or in part. The Debentures are redeemable in whole or in part prior to maturity at any time after the dates shown in the table and only after we have obtained Federal Reserve approval, if then required under applicable guidelines or regulations.
[2]	Reflects the coupon rate in effect at June 30, 2015. The coupon rate for the Bloomfield Hills Statutory Trust I is a variable rate based on three-month LIBOR plus 2.65%. The coupon rates for PrivateBancorp Statutory Trusts II and III are at a variable rate based on three-month LIBOR plus 1.71% for Trust II and three-month LIBOR plus 1.50% for Trust III. The coupon rate for PrivateBancorp Capital Trust IV is fixed. Distributions on all Trust Preferred Securities are payable quarterly. We have the right to defer payment of interest on the Debentures at any time or from time to time for a period not exceeding ten years in the case of the Debentures held by Trust IV, and five years in the case of all other Debentures, without causing an event of default under the related indenture, provided no extension period may extend beyond the stated maturity of the Debentures. During such extension period, distributions on the trust preferred securities would also be deferred, and our ability to pay dividends on our common stock would generally be prohibited. The Federal Reserve has the ability to prevent interest payments on the Debentures.
[3]	Qualifies as Tier 2 capital for regulatory capital purposes.

Junior Subordinated Deferrabl71

Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities (Common Securities, Preferred Securities, And Related Debentures) (Detail) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2015	Dec. 31, 2014
Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities [Line Items]
Common securities issued		$ 78,047	$ 77,211
Bloomfield Hills Statutory Trust I [Member]
Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities [Line Items]
Issuance Date		May 2004
Common securities issued		$ 248
Trust Preferred Securities Issued	[1]	$ 8,000
Coupon Rate	[2]	2.93%
Maturity		June 2,034
Principal Amount of Debentures	[3]	$ 8,248	8,248
PrivateBancorp Statutory Trust II [Member]
Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities [Line Items]
Issuance Date		June 2005
Common securities issued		$ 1,547
Trust Preferred Securities Issued	[1]	$ 50,000
Coupon Rate	[2]	2.00%
Maturity		Sept. 2035
Principal Amount of Debentures	[3]	$ 51,547	51,547
PrivateBancorp Statutory Trust III [Member]
Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities [Line Items]
Issuance Date		Dec. 2005
Common securities issued		$ 1,238
Trust Preferred Securities Issued	[1]	$ 40,000
Coupon Rate	[2]	1.79%
Maturity		Dec. 2035
Principal Amount of Debentures	[3]	$ 41,238	41,238
PrivateBancorp Capital Trust IV [Member]
Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities [Line Items]
Issuance Date		May 2008
Common securities issued		$ 5
Trust Preferred Securities Issued	[1]	$ 68,750
Coupon Rate	[2]	10.00%
Maturity		June 2,068
Principal Amount of Debentures	[3]	$ 68,755	68,755
Junior Subordinated Debt [Member]
Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities [Line Items]
Common securities issued		3,038
Trust Preferred Securities Issued	[1]	$ 166,750
Three Month Libor Plus Two Point Six Five Percentage [Member]
Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities [Line Items]
Increment Over Libor Of Long Term Debt		2.65%
Three Month Libor Plus One Point Seven One Percentage [Member]
Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities [Line Items]
Increment Over Libor Of Long Term Debt		1.71%
Three Month Libor Plus One Point Five Zero Percentage [Member]
Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities [Line Items]
Increment Over Libor Of Long Term Debt		1.50%
Parent Company [Member]
Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities [Line Items]
Principal Amount of Debentures	[3]	$ 169,788	$ 169,788
Parent Company [Member] | Three Month Libor Plus Two Point Six Five Percentage [Member]
Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities [Line Items]
Coupon Rate	[4]	2.93%
Parent Company [Member] | Three Month Libor Plus One Point Seven One Percentage [Member]
Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities [Line Items]
Coupon Rate	[5]	2.00%
Parent Company [Member] | Three Month Libor Plus One Point Five Zero Percentage [Member]
Junior Subordinated Deferrable Interest Debentures Held By Trusts That Issued Guaranteed Capital Debt Securities [Line Items]
Coupon Rate	[6]	1.79%
[1]	he Trust Preferred Securities accrue distributions at a rate equal to the interest rate on, and have a maturity identical to that of, the related Debentures. The Trust Preferred Securities will be redeemed upon maturity or earlier redemption of the related Debentures.
[2]	Reflects the coupon rate in effect at June 30, 2015. The coupon rate for the Bloomfield Hills Statutory Trust I is a variable rate based on three-month LIBOR plus 2.65%. The coupon rates for PrivateBancorp Statutory Trusts II and III are at a variable rate based on three-month LIBOR plus 1.71% for Trust II and three-month LIBOR plus 1.50% for Trust III. The coupon rate for PrivateBancorp Capital Trust IV is fixed. Distributions on all Trust Preferred Securities are payable quarterly. We have the right to defer payment of interest on the Debentures at any time or from time to time for a period not exceeding ten years in the case of the Debentures held by Trust IV, and five years in the case of all other Debentures, without causing an event of default under the related indenture, provided no extension period may extend beyond the stated maturity of the Debentures. During such extension period, distributions on the trust preferred securities would also be deferred, and our ability to pay dividends on our common stock would generally be prohibited. The Federal Reserve has the ability to prevent interest payments on the Debentures.
[3]	The Trust Preferred Securities are subject to mandatory redemption, in whole or in part, upon repayment of the Debentures at maturity or upon their earlier redemption in whole or in part. The Debentures are redeemable in whole or in part prior to maturity at any time after the dates shown in the table and only after we have obtained Federal Reserve approval, if then required under applicable guidelines or regulations.
[4]	Variable rate in effect at June 30, 2015, based on three-month LIBOR +2.65%.
[5]	Variable rate in effect at June 30, 2015, based on three-month LIBOR +1.71%.
[6]	Variable rate in effect at June 30, 2015, based on three-month LIBOR +1.50%.

EQUITY Equity (Narrative) (Deta

EQUITY Equity (Narrative) (Details) - shares	Jun. 30, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Nonvoting Common Stock, Shares Authorized	174,000,000	174,000,000
Treasury Stock, Shares	742	1,704
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized	1,000,000
Preferred Stock, Shares Outstanding	0
Nonvoting Common Stock [Member]
Class of Stock [Line Items]
Nonvoting Common Stock, Shares Authorized	5,000,000
Nonvoting Common Stock, Shares Outstanding	0

Equity (Change in Accumulated O

Equity (Change in Accumulated Other Comprehensive Income by Component) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Unrealized Gain (Loss) on Available-for-Sale Securities
Increase (decrease) in unrealized gains (losses) on securities		$ (13,997)	$ 11,559	$ (5,407)	$ 15,236
Reclassification adjustment of net gains (losses) included in net income (loss)		1	(196)	(533)	(527)
Net current period other comprehensive income (loss)		(8,567)	6,919	(3,659)	8,945
Accumulated Gain (Loss) on Effective Cash Flow Hedges
Increase (decrease) in unrealized gains (losses) on cash flow hedges		(504)	7,741	8,126	11,878
Reclassification adjustment of net gains included in net income		(2,534)	(2,264)	(5,072)	(4,307)
Net current period other comprehensive income (loss)		(1,852)	3,340	1,870	4,617
Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period				20,917	9,844
Increase (decrease) in unrealized gains (losses) on securities		(13,997)	11,559	(5,407)	15,236
Tax (expense) benefit on increase in unrealized gains (losses)				(1,080)	(10,622)
Other comprehensive income (loss) before reclassifications				1,639	16,492
Reclassification adjustment of net gains included in net income	[1]			(5,605)	(4,834)
Reclassification adjustment for tax expense on realized net gains	[2]			2,177	1,904
Amounts reclassified from AOCI				(3,428)	(2,930)
Net current period other comprehensive income (loss)				(1,789)	13,562
Balance at end of period		19,128	23,406	19,128	23,406
Unrealized Gain (Loss) on Available-for-Sale Securities [Member]
Unrealized Gain (Loss) on Available-for-Sale Securities
Balance at beginning of period				19,448	12,960
Increase (decrease) in unrealized gains (losses) on securities				(5,407)	15,236
Tax benefit (expense) on increase in unrealized gains (losses)				2,074	(5,972)
Other comprehensive income (loss), before reclassifications				(3,333)	9,264
Reclassification adjustment of net gains (losses) included in net income (loss)	[1]			(533)	(527)
Reclassification adjustment for tax expense (benefit) on realized net gains (losses)	[2]			207	208
Amount reclassified from AOCI				(326)	(319)
Net current period other comprehensive income (loss)				(3,659)	8,945
Balance at end of period		15,789	21,905	15,789	21,905
Accumulated Other Comprehensive Income (Loss)
Increase (decrease) in unrealized gains (losses) on securities				(5,407)	15,236
Accumulated Gain (Loss) on Effective Cash Flow Hedges [Member]
Accumulated Gain (Loss) on Effective Cash Flow Hedges
Accumulated unrealized gain (loss) balance at beginning of period				1,469	(3,116)
Increase (decrease) in unrealized gains (losses) on cash flow hedges				8,126	11,878
Tax benefit (expense) on increase in unrealized gains (losses)				(3,154)	(4,650)
Other comprehensive income (loss) before reclassifications				4,972	7,228
Reclassification adjustment of net gains included in net income	[1]			(5,072)	(4,307)
Reclassification adjustment for tax expense on realized net gains	[2]			1,970	1,696
Amount reclassified from AOCI				(3,102)	(2,611)
Net current period other comprehensive income (loss)				1,870	4,617
Accumulated unrealized gain (loss) balance at end of period		$ 3,339	$ 1,501	$ 3,339	$ 1,501
[1]	The amounts reclassified from AOCI for the available-for-sale securities are included in net securities gains on the Consolidated Statements of Income, while the amounts reclassified from AOCI for cash flow hedges are included in interest income on loans on the Consolidated Statements of Income.
[2]	The tax expense amounts reclassified from AOCI in connection with the available-for-sale securities reclassification and cash flow hedges reclassification are included in income tax provision on the Consolidated Statements of Income.

Earnings Per Common Share (Basi

Earnings Per Common Share (Basic and Diluted Earnings Per Common Share) (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Basic earnings per common share
Net income (loss)		$ 46,422	$ 40,824	$ 87,906	$ 75,329
Net income (loss) allocated to participating stockholders	[1]	(366)	(519)	(838)	(1,147)
Net income (loss) allocated to common stockholders		$ 46,056	$ 40,305	$ 87,068	$ 74,182
Weighted-average common shares outstanding		77,942,000	77,062,000	77,676,000	76,869,000
Basic earnings per common share		$ 0.59	$ 0.52	$ 1.12	$ 0.97
Diluted earnings per common share
Diluted earnings applicable to common stockholders	[2]	$ 46,059	$ 40,308	$ 87,080	$ 74,192
Weighted-average common shares outstanding		77,942,000	77,062,000	77,676,000	76,869,000
Dilutive effect of stock awards	[3]	1,216,000	744,000	1,161,000	743,000
Weighted-average diluted common shares outstanding		79,158,000	77,806,000	78,837,000	77,612,000
Diluted earnings per common share		$ 0.58	$ 0.52	$ 1.10	$ 0.96
Employee Stock Option [Member]
Diluted earnings per common share
Antidilutive shares, excluded from computation		238,000	1,300,000	483,000
[1]	Participating stockholders are those that hold certain share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents. Such shares or units are considered participating securities (i.e., certain of the Company’s deferred and restricted stock units and nonvested restricted stock awards).
[2]	Net income allocated to common stockholders for basic and diluted earnings per share may differ under the two-class method as a result of adding common stock equivalents for options to dilutive shares outstanding, which alters the ratio used to allocate earnings to common stockholders and participating securities for the purposes of calculating diluted earnings per share.
[3]	For the quarters ended June 30, 2015 and 2014, the weighted-average outstanding non-participating securities of 238,000 and 1.3 million shares, respectively, and for the six months ended June 30, 2015 and 2014, the weighted-average outstanding non-participating securities of 483,000 and 1.3 million shares, respectively, were not included in the computation of diluted earnings per common share because their inclusion would have been antidilutive for the periods presented.

Income Taxes (Income Tax Provis

Income Taxes (Income Tax Provision Analysis) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Tax Disclosure [Abstract]
Income (loss) before income taxes	$ 73,668	$ 66,818	$ 140,386	$ 122,349
Income tax provision:
Current income tax provision	28,691	26,086	50,231	45,953
Deferred income tax provision (benefit)	(1,445)	(92)	2,249	1,067
Total income tax provision (benefit)	$ 27,246	$ 25,994	$ 52,480	$ 47,020
Effective tax rate	37.00%	38.90%	37.40%	38.40%

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Detail) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Disclosure Income Taxes Narrative [Abstract]
Net deferred tax assets	$ 97,000,000	$ 98,200,000
Deferred Tax Assets, Valuation Allowance	0
Unrecognized tax benefits relating to uncertain tax positions	$ 131,000	$ 212,000

Derivative Instruments (Notiona

Derivative Instruments (Notional Amounts and Fair Value of Derivative Instruments) (Details) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Derivative [Line Items]
Interest rate contracts, cash flow hedging, asset derivatives		$ 5,817	$ 4,542
Derivatives, not designated as hedging, asset derivatives		52,204	49,108
Netting adjustments	[1],[2],[3]	(10,579)	(10,588)
Total derivatives, asset derivatives	[1]	47,442	43,062
Interest rate contracts, cash flow hedging, liability derivatives		1,284	2,715
Derivatives, not designated as hedging, liability derivatives		52,005	49,321
Netting adjustments	[1],[2],[3]	(28,593)	(25,269)
Total derivatives, liability derivatives	[1]	24,696	26,767
Client-Related Derivatives [Member]
Derivative [Line Items]
Interest rate contracts, not designated as hedging, asset derivatives		45,099	42,879
Foreign exchange contracts, not designated as hedging, asset derivatives		6,547	5,183
Credit contracts, not designated as hedging, asset derivatives		15	19
Derivatives, not designated as hedging, asset derivatives		51,661	48,081
Interest rate contracts, not designated as hedging, liability derivatives		46,150	43,792
Foreign exchange contracts, not designated as hedging, liability derivatives		5,681	4,659
Credit contracts, not designated as hedging, liability derivatives		41	24
Derivatives, not designated as hedging, liability derivatives		51,872	48,475
Other End-User Derivatives [Member]
Derivative [Line Items]
Foreign exchange contracts, not designated as hedging, asset derivatives		87	241
Mortgage banking derivatives, not designated as hedging, asset derivatives		456	786
Derivatives, not designated as hedging, asset derivatives		543	1,027
Foreign exchange contracts, not designated as hedging, liability derivatives		3	45
Mortgage banking derivatives, not designated as hedging, liability derivatives		130	801
Derivatives, not designated as hedging, liability derivatives		133	846
Interest Rate Contract [Member]
Derivative [Line Items]
Netting adjustments	[1],[2]	(7,847)	(7,433)
Netting adjustments	[1],[2]	(26,424)	(24,067)
Foreign Exchange Contract [Member]
Derivative [Line Items]
Netting adjustments	[1],[2]	(2,725)	(3,154)
Netting adjustments	[1],[2]	(2,162)	(1,202)
Risk participation agreements [Member]
Derivative [Line Items]
Netting adjustments	[1],[2]	0	(1)
Netting adjustments	[1],[2]	0	0
Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Notional amount, asset derivatives	[4]	600,000	550,000
Notional amount, liability derivatives	[4]	200,000	250,000
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Client-Related Derivatives [Member]
Derivative [Line Items]
Notional amount, asset derivatives	[4]	3,810,941	3,881,202
Notional amount, liability derivatives	[4]	3,810,941	3,743,827
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Client-Related Derivatives [Member]
Derivative [Line Items]
Notional amount, asset derivatives	[4]	249,258	98,285
Notional amount, liability derivatives	[4]	219,588	86,582
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Other End-User Derivatives [Member]
Derivative [Line Items]
Notional amount, asset derivatives	[4]	9,490	18,551
Notional amount, liability derivatives	[4]	207	2,892
Not Designated as Hedging Instrument [Member] | Risk participation agreements [Member] | Client-Related Derivatives [Member]
Derivative [Line Items]
Notional amount, asset derivatives	[4]	85,745	98,478
Notional amount, liability derivatives	[4]	$ 114,637	$ 100,941
[1]	All derivative contracts are over-the-counter contracts.
[2]	Represents financial instrument and related cash collateral entered into with the same counterparty and subject to a master netting agreement.
[3]	Represents netting of derivative asset and liability balances, and related cash collateral, with the same counterparty subject to master netting agreements. Refer to Note 14 for additional information regarding master netting agreements.
[4]	The remaining average notional amounts are shown for risk participation agreements.

Derivative Instruments (Narrati

Derivative Instruments (Narrative) (Details)	6 Months Ended
	Jun. 30, 2015USD ($)	Dec. 31, 2014USD ($)
Derivative [Line Items]
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net	$ 0
Maximum Length of Time Hedged in Interest Rate Cash Flow Hedge	5 years
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	$ 0
Net deferred gains (losses), net of tax, recorded in AOCI expected to be reclassified into earnings during the next 12 months	4,900,000
Gain (Loss) on Discontinuation of Interest Rate Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net	0
Interest rate lock commitments	43,300,000
Forward commitments for the future delivery of residential mortgage loans	74,300,000
Foreign currency risk on loans	$ 9,600,000
Minimum [Member]
Derivative [Line Items]
Written RPAs Range Of Internal Risk Ratings	1
Maximum [Member]
Derivative [Line Items]
Written RPAs Range Of Internal Risk Ratings	8
Mortgage Receivable [Member]
Derivative [Line Items]
Mortgage loans held-for-sale, par value	$ 24,685,000	$ 42,199,000

Derivative Instruments (Derivat

Derivative Instruments (Derivatives Subject To Credit Risk Contingency Features) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Description of Credit Risk Related Contingent Features [Abstract]
Fair Value of derivatives with credit contingency features in a net liability position	$ 14,207	$ 14,596
Collateral posted for those transactions in a net liability position	16,230	16,865
If credit risk contingency features were triggered: [Abstract]
Additional Collateral required to be posted to derivative counterparties	0	0
Outstanding derivative instruments that would be immediately settled	$ 14,207	$ 14,596

Derivative Instruments (Change

Derivative Instruments (Change In Accumulated Other Comprehensive Income Related To Interest Rate Swaps Designated As Cash Flow Hedge) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
AOCI Pre-tax [Roll Forward]
Amount of gain (loss) recognized in AOCI (effective portion), Pre-tax	$ (504)	$ 7,741	$ 8,126	$ 11,878
Reclassification adjustment of net gains included in net income	(2,534)	(2,264)	(5,072)	(4,307)
Interest Rate Contract [Member]
AOCI Pre-tax [Roll Forward]
Accumulated unrealized gain (loss) at beginning of period, pre-tax	8,497	(3,016)	2,405	(5,110)
Amount of gain (loss) recognized in AOCI (effective portion), Pre-tax	(504)	7,741	8,126	11,878
Reclassification adjustment of net gains included in net income	(2,534)	(2,264)	(5,072)	(4,307)
Accumulated unrealized gain (loss) at end of period, pre-tax	5,459	2,461	5,459	2,461
AOCI After-tax [Roll Forward]
Accumulated unrealized gain (loss) balance at beginning of period	5,191	(1,839)	1,469	(3,116)
Amount of gain (loss) recognized in AOCI (effective portion), After-tax	(289)	4,714	4,972	7,228
Amount reclassified from AOCI to interest income on loans, After-tax	(1,563)	(1,374)	(3,102)	(2,611)
Accumulated unrealized gain (loss) balance at end of period	$ 3,339	$ 1,501	$ 3,339	$ 1,501

Derivative Instruments (Risk Pa

Derivative Instruments (Risk Participation Agreements) (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015USD ($)risk_rating	Dec. 31, 2014USD ($)risk_rating
Derivative [Line Items]
Fair value of written RPAs | $	$ 41	$ 24
Maximum potential amount of future undiscounted payments | $	$ 2,999	$ 3,927
Percent of maximum potential amount of future undiscounted payments covered by proceeds from liquidation of pledged collateral	34.00%	25.00%
Minimum [Member]
Derivative [Line Items]
Range of Risk Participation Agreement Terms to Maturity (in years)	1 year	1 year
Range of assigned internal risk ratings for written RPAs	2	2
Maximum [Member]
Derivative [Line Items]
Range of Risk Participation Agreement Terms to Maturity (in years)	5 years	4 years
Range of assigned internal risk ratings for written RPAs	7	7

Derivative Instruments (Gain (L

Derivative Instruments (Gain (Loss) Recognized On Derivative Instruments Not Designated In Hedging Relationship) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Derivative [Line Items]
Client-related derivatives	$ 4,919	$ 5,006	$ 9,091	$ 9,089
End-user derivatives	(120)	(393)	890	(569)
Total derivatives not designated in hedging relationship	4,799	4,613	9,981	8,520
Interest Rate Contract [Member]
Derivative [Line Items]
Client-related derivatives	2,536	2,509	4,899	5,019
Foreign Exchange Contract [Member]
Derivative [Line Items]
Client-related derivatives	2,350	2,383	4,103	3,798
End-user derivatives	(500)	(259)	550	(253)
Risk participation agreements [Member]
Derivative [Line Items]
Client-related derivatives	33	114	89	272
Mortgage Banking Derivatives [Member]
Derivative [Line Items]
End-user derivatives	$ 380	$ (134)	$ 340	$ (316)

BALANCE SHEET OFFSETTING Bala83

BALANCE SHEET OFFSETTING Balance Sheet Offsetting (Narrative) (Details) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Balance Sheet Offsetting [Abstract]
Derivative Liability, Collateral, Right to Reclaim Cash, Offset	$ 18,000,000	$ 14,700,000
Pledged Assets Separately Reported, Other Assets Pledged as Collateral, at Fair Value	$ 0

BALANCE SHEET OFFSETTING Bala84

BALANCE SHEET OFFSETTING Balance Sheet Offsetting (Offsetting of Financial Assets and Liabilities) (Details) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Derivative Asset [Abstract]
Derivative Asset, Fair Value, Gross Asset	[1]	$ 54,855	$ 51,104
Derivative Asset, Not Subject to Master Netting Arrangement	[1]	3,166	2,546
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	[1]	58,021	53,650
Derivative Asset, Fair Value, Gross Liability	[1],[2],[3]	(10,579)	(10,588)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	[1]	44,276	40,516
Derivative Asset	[1]	47,442	43,062
Derivative, Collateral, Obligation to Return Securities	[1],[4],[5]	0	0
Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	[1]	44,276	40,516
Derivative Asset, Fair Value, Amount Offset Against Collateral	[1]	47,442	43,062
Derivative Liability [Abstract]
Derivative Liability, Fair Value, Gross Liability	[1]	51,944	48,952
Derivative Liability, Not Subject to Master Netting Arrangement	[1]	1,345	3,084
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	[1]	53,289	52,036
Derivative Liability, Fair Value, Gross Asset	[1],[2],[3]	(28,593)	(25,269)
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	[1]	23,351	23,683
Derivative Liability	[1]	24,696	26,767
Derivative, Collateral, Right to Reclaim Securities	[1],[4],[5]	(18,911)	(18,739)
Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	[1]	4,440	4,944
Derivative Liability, Fair Value, Amount Offset Against Collateral	[1]	5,785	8,028
Repurchase agreements, Gross		150,801
Repurchase agreements, Fair Value, Gross Asset	[2]	0
Repurchase agreements		150,801
Repurchase agreements, Collateral, Right to Reclaim Securities	[4],[5]	(150,801)
Repurchase agreements, Collateral, Right to Reclaim Cash	[4]	0
Repurchase agreements, Amount Offset Against Collateral		0
Financial Liabilities, Fair Value, Gross Liability		204,090
Financial Liabilities, Fair Value, Amount Not Offset Against Collateral, Total		175,497
Financial Liabilities, Collateral, Right to Reclaim Securities	[4],[5]	(169,712)
Financial Liabilities, Collateral, Right to Reclaim Cash	[4]	0
Financial Liabilities, Amount Offset Against Collateral, Total		5,785
Interest Rate Contract [Member]
Derivative Asset [Abstract]
Derivative Asset, Fair Value, Gross Asset	[1]	50,916	47,421
Derivative Asset, Fair Value, Gross Liability	[1],[2]	(7,847)	(7,433)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	[1]	43,069	39,988
Derivative, Collateral, Obligation to Return Securities	[1],[4],[5]	0
Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	[1]	43,069	39,988
Derivative Liability [Abstract]
Derivative Liability, Fair Value, Gross Liability	[1]	47,434	46,507
Derivative Liability, Fair Value, Gross Asset	[1],[2]	(26,424)	(24,067)
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	[1]	21,010	22,440
Derivative, Collateral, Right to Reclaim Securities	[1],[4],[5]	(17,015)	(17,755)
Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	[1]	3,995	4,685
Foreign Exchange Contract [Member]
Derivative Asset [Abstract]
Derivative Asset, Fair Value, Gross Asset	[1]	3,866	3,664
Derivative Asset, Fair Value, Gross Liability	[1],[2]	(2,725)	(3,154)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	[1]	1,141	510
Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	[1]	1,141	510
Derivative Liability [Abstract]
Derivative Liability, Fair Value, Gross Liability	[1]	4,462	2,421
Derivative Liability, Fair Value, Gross Asset	[1],[2]	(2,162)	(1,202)
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	[1]	2,300	1,219
Derivative, Collateral, Right to Reclaim Securities	[1],[4],[5]	(1,863)	(965)
Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	[1]	437	254
Risk participation agreements [Member]
Derivative Asset [Abstract]
Derivative Asset, Fair Value, Gross Asset	[1]	15	19
Derivative Asset, Fair Value, Gross Liability	[1],[2]	0	(1)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	[1]	15	18
Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	[1]	15	18
Derivative Liability [Abstract]
Derivative Liability, Fair Value, Gross Liability	[1]	41	24
Derivative Liability, Fair Value, Gross Asset	[1],[2]	0	0
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	[1]	41	24
Derivative, Collateral, Right to Reclaim Securities	[1],[4],[5]	(33)	(19)
Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	[1]	8	$ 5
Mortgage Banking Derivatives [Member]
Derivative Asset [Abstract]
Derivative Asset, Fair Value, Gross Asset	[1]	58
Derivative Asset, Fair Value, Gross Liability	[1],[2]	(7)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	[1]	51
Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	[1]	51
Derivative Liability [Abstract]
Derivative Liability, Fair Value, Gross Liability	[1]	7
Derivative Liability, Fair Value, Gross Asset	[1],[2]	(7)
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	[1]	0
Derivative, Collateral, Right to Reclaim Securities	[1],[4],[5]	0
Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	[1]	$ 0
[1]	All derivative contracts are over-the-counter contracts.
[2]	Represents financial instrument and related cash collateral entered into with the same counterparty and subject to a master netting agreement.
[3]	Represents netting of derivative asset and liability balances, and related cash collateral, with the same counterparty subject to master netting agreements. Refer to Note 14 for additional information regarding master netting agreements.
[4]	Collateralization is determined at the counterparty level. If overcollateralization exists, the amount shown is limited to the fair value of the financial instrument.
[5]	Financial instruments are disclosed at fair value. Financial instrument collateral is allocated pro-rata amongst the derivative liabilities to which it relates.

Commitments, Guarantees, And 85

Commitments, Guarantees, And Contingent Liabilities (Contractual Or Notional Amounts Of Financial Instruments) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Commitments Guarantees And Contingent Liabilities [Line Items]
Commitments to extend credit	[1]	$ 5,746,227	$ 5,674,753
Letters of credit	[1]	399,290	377,566
Covered loan commitments		10,300	11,000
Financial standby [Member]
Commitments Guarantees And Contingent Liabilities [Line Items]
Letters of credit	[1]	353,416	334,175
Performance standby [Member]
Commitments Guarantees And Contingent Liabilities [Line Items]
Letters of credit	[1]	40,559	38,167
Commercial letters of credit [Member]
Commitments Guarantees And Contingent Liabilities [Line Items]
Letters of credit	[1]	5,315	5,224
Home equity lines [Member]
Commitments Guarantees And Contingent Liabilities [Line Items]
Commitments to extend credit	[1]	132,820	129,943
Residential 1-4 family construction [Member]
Commitments Guarantees And Contingent Liabilities [Line Items]
Commitments to extend credit	[1]	43,162	53,847
Commercial real estate, other construction and land development [Member]
Commitments Guarantees And Contingent Liabilities [Line Items]
Commitments to extend credit	[1]	1,185,398	1,123,123
Commercial and industrial [Member]
Commitments Guarantees And Contingent Liabilities [Line Items]
Commitments to extend credit	[1]	3,863,648	4,031,217
All other commitments [Member]
Commitments Guarantees And Contingent Liabilities [Line Items]
Commitments to extend credit	[1]	$ 521,199	$ 336,623
[1]	Includes covered loan commitments of $10.3 million and $11.0 million as of June 30, 2015, and December 31, 2014, respectively.

Commitments, Guarantees, And 86

Commitments, Guarantees, And Contingent Liabilities (Narrative) (Detail) - Jun. 30, 2015 - USD ($)	Total
Disclosure Commitments Guarantees And Contingent Liabilities Narrative [Abstract]
Reserve for unfunded commitments	$ 13,200,000
Unamortized fees associated with standby letters of credit	$ 2,200,000
Remaining weighted-average term, standby letters of credit	15 months
Remaining actual lives, standby letters of credit, minimum	1 year
Remaining actual lives, standby letters of credit, maximum	6 years
Unfunded commitments for contributions to CRA investments and other investment partnerships	$ 18,700,000
Unfunded commitments for tax-credit investments	8,300,000
Maximum potential future payments guarantee obligation, credit card settlement guarantees	15,400,000
Contingency liability, settlement guarantee program	$ 0

Estimated Fair Value Of Finan87

Estimated Fair Value Of Financial Instruments (Narrative) (Detail) - USD ($)		6 Months Ended
		Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loan Appraisal Update, Value in Excess		$ 500,000	$ 500,000
Appraisal value to be reviewed		250,000
Appraisal value subject to technical review		1,000,000
Transfers of Assets and Liabilities Between Fair Value Hierarchy Level 1 and Level 2		0
Loan Portfolio Aging, 90 Days Past Due and Accruing		0	0
Loans Held-for-sale, Other	[1]	29,849,000	72,946,000
Participating Mortgages [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Other		$ 29,800,000	36,600,000
Branch Closing, Sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Other			$ 36,300,000
[1]	Amounts at June 30, 2015, represent commercial and commercial real estate loans carried at the lower of aggregate cost or fair value. Generally, the Company intends to sell these loans within 30-60 days from the date the intent to sell was established. Amounts at December 31, 2014, consist of $36.6 million of commercial, commercial real estate and construction loans carried at the lower of aggregate cost or fair value and $36.3 million of commercial, commercial real estate, construction, home equity and personal loans held-for-sale in connection with the sale of the Company's banking office located in Norcross, Georgia, which closed in January 2015.

Estimated Fair Value Of Finan88

Estimated Fair Value Of Financial Instruments (Fair Value Measurements On A Recurring Basis) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		$ 1,698,233	$ 1,645,344
Mortgages loans held-for-sale		24,414	42,215
Interest rate contract derivatives designated as hedging instruments		5,817	4,542
Other derivative assets, not designated as hedging instruments		52,204	49,108
Netting adjustments	[1],[2],[3]	(10,579)	(10,588)
Derivative assets	[1]	47,442	43,062
Total assets		1,770,089	1,730,621
Interest rate contract derivatives designated as hedging instruments		1,284	2,715
Netting adjustments	[1],[2],[3]	(28,593)	(25,269)
Derivative liabilities	[1]	24,696	26,767
Fair Value, Inputs, Level 1 [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		268,895	268,265
Mortgages loans held-for-sale		0	0
Derivative assets		0	0
Total assets		268,895	268,265
Derivative liabilities		0	0
Fair Value, Inputs, Level 2 [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		1,429,338	1,377,079
Mortgages loans held-for-sale		24,414	42,215
Interest rate contract derivatives designated as hedging instruments		5,817	4,542
Netting adjustments		(10,448)	(9,952)
Derivative assets		46,492	41,500
Total assets		1,500,244	1,460,794
Interest rate contract derivatives designated as hedging instruments		1,284	2,715
Netting adjustments		(28,462)	(24,633)
Derivative liabilities		24,532	25,926
Fair Value, Inputs, Level 3 [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		0	0
Mortgages loans held-for-sale		0	0
Netting adjustments		(131)	(636)
Derivative assets		950	1,562
Total assets		950	1,562
Netting adjustments		(131)	(636)
Derivative liabilities		164	841
U.S. Treasury [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		268,895	268,265
U.S. Treasury [Member] | Fair Value, Inputs, Level 1 [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		268,895	268,265
U.S. Agency [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		46,423	46,258
U.S. Agency [Member] | Fair Value, Inputs, Level 2 [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		46,423	46,258
Collateralized mortgage obligations [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		117,097	136,933
Collateralized mortgage obligations [Member] | Fair Value, Inputs, Level 2 [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		117,097	136,933
Residential mortgage-backed securities [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		853,363	846,078
Residential mortgage-backed securities [Member] | Fair Value, Inputs, Level 2 [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		853,363	846,078
State and municipal securities [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		412,455	347,310
State and municipal securities [Member] | Fair Value, Inputs, Level 2 [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		412,455	347,310
Foreign sovereign debt [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		0	500
Foreign sovereign debt [Member] | Fair Value, Inputs, Level 2 [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Securities available-for-sale, at fair value		0	500
Client-Related Derivatives [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Other derivative assets, not designated as hedging instruments		51,661	48,081
Other derivatives liabilities, not designated as hedging instruments		51,872	48,475
Client-Related Derivatives [Member] | Fair Value, Inputs, Level 2 [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Other derivative assets, not designated as hedging instruments		50,978	46,669
Other derivatives liabilities, not designated as hedging instruments		51,700	47,799
Client-Related Derivatives [Member] | Fair Value, Inputs, Level 3 [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Other derivative assets, not designated as hedging instruments		683	1,412
Other derivatives liabilities, not designated as hedging instruments		172	676
Other End-User Derivatives [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Other derivative assets, not designated as hedging instruments		543	1,027
Other derivatives liabilities, not designated as hedging instruments		133	846
Other End-User Derivatives [Member] | Fair Value, Inputs, Level 2 [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Other derivative assets, not designated as hedging instruments		145	241
Other derivatives liabilities, not designated as hedging instruments		10	45
Other End-User Derivatives [Member] | Fair Value, Inputs, Level 3 [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Other derivative assets, not designated as hedging instruments		398	786
Other derivatives liabilities, not designated as hedging instruments		$ 123	$ 801
[1]	All derivative contracts are over-the-counter contracts.
[2]	Represents financial instrument and related cash collateral entered into with the same counterparty and subject to a master netting agreement.
[3]	Represents netting of derivative asset and liability balances, and related cash collateral, with the same counterparty subject to master netting agreements. Refer to Note 14 for additional information regarding master netting agreements.

Estimated Fair Value Of Finan89

Estimated Fair Value Of Financial Instruments (Reconciliation Of Beginning And Ending Fair Value For Those Fair Value Measurements Using Significant Unobservable Inputs (Level 3) (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Derivative Financial Instruments, Assets [Member]
Estimated Fair Value of Financial Instruments [Roll Forward]
Balance at beginning of period, derivative assets	[1]	$ 2,233	$ 1,038	$ 2,198	$ 789
Total gains (losses) included in earnings, derivative assets	[1],[2]	(384)	329	(242)	226
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances	[1]	347	240	505	412
Settlements, derivative assets	[1]	(572)	(645)	(1,363)	(1,180)
Transfers into Level 3 (out of Level 2) derivative assets	[1],[3]	284	1,752	1,168	2,579
Transfers out of Level 3 (into Level 2), derivative assets	[1],[3]	(827)	(2)	(1,185)	(114)
Balance at end of period, derivative assets	[1]	1,081	2,712	1,081	2,712
Change in unrealized gains (losses) in earnings relating to assets and liabilities still held at end of year	[1]	(36)	89	490	66
Derivative Financial Instruments, Liabilities [Member]
Estimated Fair Value of Financial Instruments [Roll Forward]
Balance at beginning of period, derivative liabilities	[1]	(1,239)	(735)	(1,477)	(201)
Total gains (losses) included in earnings, derivative liabilities	[1],[2]	153	181	299	543
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances	[1]	0	0	0	0
Settlements, derivative liabilities	[1]	340	28	584	(422)
Transfers into Level 3 (out of Level 2) derivative liabilities	[1],[3]	0	(948)	(160)	(1,394)
Transfers out of Level 3 (into Level 2) derivative liabilities	[1],[3]	451	0	459	0
Balance at end of period, derivative liabilities	[1]	(295)	(1,474)	(295)	(1,474)
Change in unrealized gains (losses) in earnings relating to assets and liabilities still held at end of year	[1]	$ 193	$ 313	$ (26)	$ 790
[1]	Fair value is presented prior to giving effect to netting adjustments.
[2]	Amounts disclosed in this line are included in the Consolidated Statements of Income as capital markets products income for derivatives and mortgage banking income for interest rate lock commitments.
[3]	Transfers in and transfers out are recognized at the end of each quarterly reporting period. In general, derivative assets and liabilities are transferred into Level 3 from Level 2 due to a lack of observable market data, as there was deterioration in the credit risk of the derivative counterparty. Conversely, derivative assets and liabilities are transferred out of Level 3 into Level 2 due to an improvement in the credit risk of the derivative counterparty.

Estimated Fair Value Of Finan90

Estimated Fair Value Of Financial Instruments (Summary Of The Difference Between The Aggregate Fair Value And Remaining Principle Balance In Mortgage Loans Held For Sale) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Estimated Fair Value Of Financial Instruments [Line Items]
Mortgages loans held-for-sale, aggregate fair value		$ 24,414	$ 42,215
Mortgage Receivable [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Mortgage loans held-for-sale, aggregate unpaid principal balance		24,685	42,199
Assets Held-for-sale [Member] | Mortgage Receivable [Member]
Estimated Fair Value Of Financial Instruments [Line Items]
Mortgage loans held-for-sale, difference	[1]	$ 271	$ (16)
[1]	The change in fair value is reflected in mortgage banking non-interest income.

Estimated Fair Value Of Finan91

Estimated Fair Value Of Financial Instruments (Fair Value Measurements On A Nonrecurring Basis) (Detail) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014
Estimated Fair Value Of Financial Instruments [Line Items]
Collateral-dependent impaired loans, Fair Value	[1]	$ 27,186	$ 31,482
OREO, Fair Value	[2]	10,473	14,238
Total, Fair Value		37,659	45,720
Collateral-dependent impaired loans, (gains) losses	[1]	(3,021)	12,391
OREO, Losses	[2]	1,161	3,556
Total, (gains) losses		$ (1,860)	$ 15,947
[1]	Represents the fair value of loans adjusted to the appraised value of the collateral with a write-down in fair value or change in specific reserves during the respective period. These fair value adjustments are recorded against the allowance for loan losses.
[2]	Represents the fair value of foreclosed properties that were adjusted subsequent to their initial classification as foreclosed assets. Write-downs are recognized as a component of net foreclosed real estate expense in the Consolidated Statements of Income.

Estimated Fair Value Of Finan92

Estimated Fair Value Of Financial Instruments (Quantitative Information Regarding Level 3 Fair Value Measurements) (Detail) - Jun. 30, 2015 - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands		Total
Watch List Derivatives [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		$ 537
Watch List Derivatives [Member] | Minimum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs		7.20%
Watch List Derivatives [Member] | Maximum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs		16.60%
Watch List Derivatives [Member] | Weighted Average [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs		12.90%
Watch List Derivatives [Member] | Loss Factors [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Input		Loss factors
Watch List Derivatives [Member] | Discounted Cash Flow [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Techniques		Discounted cash flow
Risk Participation Agreements [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	$ (26)
Risk Participation Agreements [Member] | Minimum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs		0.60%
Risk Participation Agreements [Member] | Maximum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs		16.60%
Risk Participation Agreements [Member] | Weighted Average [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs		8.80%
Risk Participation Agreements [Member] | Loss Factors [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Input		Loss factors
Risk Participation Agreements [Member] | Discounted Cash Flow [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Techniques		Discounted cash flow
Interest Rate Lock Commitments [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[1]	$ (371)
Interest Rate Lock Commitments [Member] | Minimum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs		80.00%
Interest Rate Lock Commitments [Member] | Maximum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs		100.00%
Interest Rate Lock Commitments [Member] | Weighted Average [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs		81.10%
Interest Rate Lock Commitments [Member] | Pull-through Rate [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Input		Pull-through rate
Interest Rate Lock Commitments [Member] | Discounted Cash Flow [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Techniques		Discounted cash flow
Collateral Dependent Impaired Loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		$ 27,186
Collateral Dependent Impaired Loans [Member] | Minimum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs		(0.20%)
Collateral Dependent Impaired Loans [Member] | Maximum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs		(27.80%)
Collateral Dependent Impaired Loans [Member] | Weighted Average [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs	[2]	(8.40%)
Collateral Dependent Impaired Loans [Member] | Property Specific Adjustment [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Input		Property specific adjustment
Collateral Dependent Impaired Loans [Member] | Sales Comparison, Income Capitalization And/Or Cost Approach [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Techniques		Sales comparison, income capitalization and/or cost approach
Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		$ 10,473
Other Real Estate Owned [Member] | Minimum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs		(1.00%)
Other Real Estate Owned [Member] | Maximum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs		(18.80%)
Other Real Estate Owned [Member] | Weighted Average [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Range Of Inputs Significant Unobservable Inputs	[2]	(6.80%)
Other Real Estate Owned [Member] | Property Specific Adjustment [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Input		Property specific adjustment
Other Real Estate Owned [Member] | Sales Comparison, Income Capitalization And/Or Cost Approach [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Techniques		Sales comparison, income capitalization and/or cost approach
[1]	Represents fair value of underlying swap.
[2]	Weighted average is calculated based on assets with a property specific adjustment.

Estimated Fair Value Of Finan93

Estimated Fair Value Of Financial Instruments (Financial Instruments) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Financial assets: [Abstract]
Cash and due from banks		$ 185,983	$ 132,211
Federal funds sold and interest-bearing deposits in banks		192,531	292,341
Loans held-for-sale		54,263	115,161
Securities available-for-sale, at fair value		1,698,233	1,645,344
Securities Held-to-Maturity, Amortized Cost		1,199,120	1,129,285
Securities held-to-maturity, at fair value		1,198,460	1,132,615
Federal Home Loan Bank Stock		25,854	28,666
Loans, net of allowance for loan losses and unearned fees		12,386,230	11,739,721
Covered assets, net of allowance for covered loan losses		24,197	28,941
Accrued interest receivable		43,442	40,531
Investment in BOLI		55,926	55,207
Derivative assets	[1]	47,442	43,062
Financial liabilities: [Abstract]
Deposits		13,388,936	13,089,968
Deposits held-for-sale		0	122,216
Short-term borrowings		434,695	432,385
Long-term debt		694,788	344,788
Accrued interest payable		7,543	6,948
Derivative liabilities	[1]	24,696	26,767
Estimate of Fair Value Measurement [Member]
Financial assets: [Abstract]
Cash and due from banks		185,983	132,211
Federal funds sold and interest-bearing deposits in banks		192,531	292,341
Loans held-for-sale		54,263	115,161
Securities available-for-sale, at fair value		1,698,233	1,645,344
Securities held-to-maturity, at fair value		1,198,460	1,132,615
Federal Home Loan Bank Stock		25,854	28,666
Loans, net of allowance for loan losses and unearned fees, fair value		12,351,635	11,736,461
Covered assets, net of allowance for covered loan losses, fair value		30,408	33,988
Accrued interest receivable		43,442	40,531
Investment in BOLI		55,926	55,207
Derivative assets		47,442	43,062
Financial liabilities: [Abstract]
Deposits, fair value		13,396,155	13,095,657
Deposits held-for-sale, fair value			117,572
Short-term borrowings, fair value		434,118	430,944
Long-term debt, fair value		670,526	332,374
Accrued interest payable		7,543	6,948
Derivative liabilities		24,696	26,767
Fair Value, Inputs, Level 1 [Member]
Financial assets: [Abstract]
Cash and due from banks		185,983	132,211
Federal funds sold and interest-bearing deposits in banks		0	0
Loans held-for-sale		0	0
Securities available-for-sale, at fair value		268,895	268,265
Securities held-to-maturity, at fair value		0	0
Federal Home Loan Bank Stock, fair value		0	0
Loans, net of allowance for loan losses and unearned fees, fair value		0	0
Covered assets, net of allowance for covered loan losses, fair value		0	0
Accrued interest receivable		0	0
Investment in BOLI		0	0
Derivative assets		0	0
Financial liabilities: [Abstract]
Deposits, fair value		0	0
Short-term borrowings, fair value		0	0
Long-term debt, fair value		205,200	204,320
Accrued interest payable		0	0
Derivative liabilities		0	0
Fair Value, Inputs, Level 2 [Member]
Financial assets: [Abstract]
Cash and due from banks		0	0
Federal funds sold and interest-bearing deposits in banks		192,531	292,341
Loans held-for-sale		54,263	115,161
Securities available-for-sale, at fair value		1,429,338	1,377,079
Securities held-to-maturity, at fair value		1,198,460	1,132,615
Federal Home Loan Bank Stock		25,854	28,666
Loans, net of allowance for loan losses and unearned fees, fair value		0	0
Covered assets, net of allowance for covered loan losses, fair value		0	0
Accrued interest receivable		0	0
Investment in BOLI		0	0
Derivative assets		46,492	41,500
Financial liabilities: [Abstract]
Deposits, fair value		10,998,935	10,595,040
Deposits held-for-sale, fair value			117,572
Short-term borrowings, fair value		427,847	427,150
Long-term debt, fair value		398,967	54,092
Accrued interest payable		0	0
Derivative liabilities		24,532	25,926
Fair Value, Inputs, Level 3 [Member]
Financial assets: [Abstract]
Cash and due from banks		0	0
Federal funds sold and interest-bearing deposits in banks		0	0
Loans held-for-sale		0	0
Securities available-for-sale, at fair value		0	0
Securities held-to-maturity, at fair value		0	0
Federal Home Loan Bank Stock, fair value		0	0
Loans, net of allowance for loan losses and unearned fees, fair value		12,351,635	11,736,461
Covered assets, net of allowance for covered loan losses, fair value		30,408	33,988
Accrued interest receivable		43,442	40,531
Investment in BOLI		55,926	55,207
Derivative assets		950	1,562
Financial liabilities: [Abstract]
Deposits, fair value		2,397,220	2,500,617
Short-term borrowings, fair value		6,271	3,794
Long-term debt, fair value		66,359	73,962
Accrued interest payable		7,543	6,948
Derivative liabilities		$ 164	$ 841
[1]	All derivative contracts are over-the-counter contracts.

Operating Segments (Operating S

Operating Segments (Operating Segments Performance) (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net interest income (loss)		$ 124,622	$ 112,351	$ 246,615	$ 221,103
Provision for loan and covered loan losses		2,116	327	7,762	4,034
Non-interest income		33,059	30,259	66,575	56,495
Non-interest expense		81,897	75,465	165,042	151,215
Income (loss) before income taxes		73,668	66,818	140,386	122,349
Income tax provision (benefit)		27,246	25,994	52,480	47,020
Net income (loss)		46,422	40,824	87,906	75,329
Assets		16,225,895		16,225,895		$ 15,603,382
Total loans		12,543,281	11,136,942	12,543,281	11,136,942	11,892,219
Deposits, excluding deposits held-for-sale		13,388,936		13,388,936		13,089,968
Banking [Member]
Segment Reporting Information [Line Items]
Net interest income (loss)		129,121	118,755	255,619	233,907
Provision for loan and covered loan losses		2,116	327	7,762	4,034
Non-interest income		28,273	25,804	57,411	47,676
Non-interest expense		74,756	68,520	150,691	137,180
Income (loss) before income taxes		80,522	75,712	154,577	140,369
Income tax provision (benefit)		29,951	29,330	57,888	53,983
Net income (loss)		50,571	46,382	96,689	86,386
Assets		14,395,309		14,395,309		13,882,805
Total loans		12,543,281		12,543,281		11,892,219
Deposits, excluding deposits held-for-sale		13,442,839		13,442,839		13,150,600
Asset Management [Member]
Segment Reporting Information [Line Items]
Net interest income (loss)		1,104	987	2,003	1,774
Provision for loan and covered loan losses		0	0	0	0
Non-interest income		4,771	4,440	9,134	8,789
Non-interest expense		4,513	4,332	8,825	8,408
Income (loss) before income taxes		1,362	1,095	2,312	2,155
Income tax provision (benefit)		524	431	898	849
Net income (loss)		838	664	1,414	1,306
Holding Company And Other Adjustments [Member]
Segment Reporting Information [Line Items]
Net interest income (loss)		(5,603)	(7,391)	(11,007)	(14,578)
Provision for loan and covered loan losses		0	0	0	0
Non-interest income		15	15	30	30
Non-interest expense		2,628	2,613	5,526	5,627
Income (loss) before income taxes		(8,216)	(9,989)	(16,503)	(20,175)
Income tax provision (benefit)		(3,229)	(3,767)	(6,306)	(7,812)
Net income (loss)		(4,987)	$ (6,222)	(10,197)	$ (12,363)
Assets	[1]	1,830,586		1,830,586		1,720,577
Total loans		0		0		0
Deposits, excluding deposits held-for-sale	[1]	$ (53,903)		$ (53,903)		$ (60,632)
[1]	Deposit amounts represent the elimination of Holding Company cash accounts included in total deposits of the Banking segment.

Variable Interest Entities (Non

Variable Interest Entities (Nonconsolidated Variable Interest Entities) (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Variable Interest Entity [Line Items]
Carrying Amount		$ 233,925	$ 240,057
Maximum Exposure to Loss		79,837	80,369
Trust Preferred Capital Securities Issuances [Member]
Variable Interest Entity [Line Items]
Carrying Amount		169,788	169,788
Maximum Exposure to Loss		0	0
Community Reinvestment Investments [Member]
Variable Interest Entity [Line Items]
Carrying Amount		10,887	14,360
Maximum Exposure to Loss		12,581	16,054
Restructured loans to commercial clients, outstanding loan balance [Member]
Variable Interest Entity [Line Items]
Carrying Amount	[1]	53,213	49,376
Maximum Exposure to Loss	[1]	67,219	57,782
Restructured loans to commercial clients, related derivative asset [Member]
Variable Interest Entity [Line Items]
Carrying Amount	[1]	37	6,533
Maximum Exposure to Loss	[1]	$ 37	$ 6,533
[1]	Excludes personal loans and loans to non-for-profit entities.

Variable Interest Entities (Nar

Variable Interest Entities (Narrative) (Detail) - USD ($)	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Investment Holdings [Line Items]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage		100.00%	100.00%
Tax Credit Investment Unfunded Commitments		$ 8,300,000
Impairment Losses, Tax Credit Investments		$ 0		$ 0
Low Income Housing Tax Credit Investment [Member]
Investment Holdings [Line Items]
Tax credit benefits, end of period, year
Tax Credit Investments [Member]
Investment Holdings [Line Items]
Tax credit benefits, end of period, year
Tax credit investments carrying value		$ 9,700,000		$ 10,000,000
Impairment Losses, Tax Credit Investments	$ 0	$ 0	$ 0