Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Estimated Fair Values and Carrying Amounts of Financial Instruments

The carrying amount and estimated fair values, as well as the level within the fair value hierarchy, of the Company’s financial instruments are included in the tables below. See Note 1, Summary of Significant Accounting Policies, in the 2015 Annual Report on Form 10-K for the year ended December 31, 2015, for a description of how fair value measurements are determined.

	September 30, 2016
(Dollars in thousands)	Carrying Amount		Fair Value		Level 1		Level 2		Level 3
Financial Assets
Cash and cash equivalents	$	1,101,253	$	1,101,253	$	1,101,253	$	—	$	—
Investment securities	2,976,066		2,978,823		—		2,978,823		—
Loans and loans held for sale, net of unearned income and allowance for loan losses	14,987,172		15,032,960		—		210,866		14,822,094
FDIC loss share receivables	24,406		6,343		—		—		6,343
Derivative instruments	55,804		55,804		—		55,804		—
Financial Liabilities
Deposits	$	16,522,517	$	16,485,224	$	—	$	—	$	16,485,224
Short-term borrowings	713,272		713,272		353,272		360,000		—
Long-term debt	672,438		660,140		—		—		660,140
Derivative instruments	58,939		58,939		—		58,939		—
	December 31, 2015
(Dollars in thousands)	Carrying Amount		Fair Value		Level 1		Level 2		Level 3
Financial Assets
Cash and cash equivalents	$	510,267	$	510,267	$	510,267	$	—	$	—
Investment securities	2,899,214		2,901,247		—		2,901,247		—
Loans and loans held for sale, net of unearned income and allowance for loan losses	14,355,297		14,674,749		—		166,247		14,508,502
FDIC loss share receivables	39,878		9,163		—		—		9,163
Derivative instruments	30,486		30,486		—		30,486		—
Financial Liabilities
Deposits	$	16,178,748	$	15,696,245	$	—	$	—	$	15,696,245
Short-term borrowings	326,617		326,617		216,617		110,000		—
Long-term debt	340,447		309,847		—		—		309,847
Derivative instruments	24,939		24,939		—		24,939		—