The following table provides a rollforward of the allowance for loan losses by portfolio segment for December 31, 2017, 2016 and 2015:



(Dollars in thousands)	C&I			Commercial Real Estate			Consumer Real Estate			Permanent Mortgage			Credit Card and Other			Total
Balance as of January 1, 2017	$	89,398		$	33,852		$	50,357		$	16,289		$	12,172		$	202,068
Charge-offs	(17,657		)	(195		)	(13,156		)	(2,179		)	(13,207		)	(46,394		)
Recoveries	4,568			966			22,723			2,509			3,115			33,881
Provision/(provision credit) for loan losses	21,902			(6,196		)	(22,553		)	(1,054		)	7,901			—
Balance as of December 31, 2017	98,211			28,427			37,371			15,565			9,981			189,555
Allowance - individually evaluated for impairment	6,044			132			23,175			12,105			311			41,767
Allowance - collectively evaluated for impairment	89,358			28,291			13,841			3,460			9,670			144,620
Allowance - purchased credit-impaired loans	2,809			4			355			—			—			3,168
Loans, net of unearned as of December 31, 2017:
Individually evaluated for impairment	43,024			2,407			128,895			84,794			593			259,713
Collectively evaluated for impairment	15,909,110			4,181,908			6,200,330			314,513			613,806			27,219,667
Purchased credit-impaired loans	105,139			30,380			38,530			—			5,500			179,549
Total loans, net of unearned income	$	16,057,273		$	4,214,695		$	6,367,755		$	399,307		$	619,899		$	27,658,929
Balance as of January 1, 2016	$	73,637		$	25,159		$	80,614		$	18,947		$	11,885		$	210,242
Charge-offs	(18,460		)	(1,371		)	(21,993		)	(1,591		)	(14,224		)	(57,639		)
Recoveries	6,795			1,927			23,719			2,403			3,621			38,465
Provision/(provision credit) for loan losses	27,426			8,137			(31,983		)	(3,470		)	10,890			11,000
Balance as of December 31, 2016	89,398			33,852			50,357			16,289			12,172			202,068
Allowance - individually evaluated for impairment	4,219			194			28,802			12,470			133			45,818
Allowance - collectively evaluated for impairment	85,015			33,503			21,151			3,819			12,039			155,527
Allowance - purchased credit-impaired loans	164			155			404			—			—			723
Loans, net of unearned as of December 31, 2016:
Individually evaluated for impairment	47,962			3,124			153,460			93,926			306			298,778
Collectively evaluated for impairment	12,059,593			2,127,481			4,368,716			329,199			358,675			19,243,664
Purchased credit-impaired loans	40,532			4,918			1,576			—			52			47,078
Total loans, net of unearned income	$	12,148,087		$	2,135,523		$	4,523,752		$	423,125		$	359,033		$	19,589,520
Balance as of January 1, 2015	$	67,011		$	18,574		$	113,011		$	19,122		$	14,730		$	232,448
Charge-offs	(22,406		)	(3,550		)	(30,068		)	(3,141		)	(16,691		)	(75,856		)
Recoveries	13,339			1,876			23,895			1,687			3,853			44,650
Provision/(provision credit) for loan losses	15,693			8,259			(26,224		)	1,279			9,993			9,000
Balance as of December 31, 2015	73,637			25,159			80,614			18,947			11,885			210,242
Allowance - individually evaluated for impairment	3,643			481			31,278			15,463			167			51,032
Allowance - collectively evaluated for impairment	69,980			23,519			48,828			3,484			11,717			157,528
Allowance - purchased credit-impaired loans	14			1,159			508			—			1			1,682
Loans, net of unearned as of December 31, 2015:
Individually evaluated for impairment	30,472			9,055			165,684			102,461			377			308,049
Collectively evaluated for impairment	10,389,841			1,644,792			4,596,654			351,662			354,106			17,337,055
Purchased credit-impaired loans	16,077			21,088			4,180			—			53			41,398
Total loans, net of unearned income	$	10,436,390		$	1,674,935		$	4,766,518		$	454,123		$	354,536		$	17,686,502