Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2017	Dec. 31, 2016
Assets
Cash and due from banks (noninterest-bearing)		$ 335,768	$ 327,706
Federal funds sold and securities purchased under reverse repurchase agreements		615	500
Securities available for sale (at fair value)		2,238,635	2,356,682
Securities held to maturity (fair value: $1,046,247-2017; $1,157,046-2016)		1,056,486	1,158,643
Loans held for sale (LHFS)		180,512	175,927
Loans held for investment (LHFI)	[1]	8,569,967	7,851,213
Less allowance for loan losses, LHFI		76,733	71,265
Net LHFI		8,493,234	7,779,948
Acquired loans		261,517	272,247
Less allowance for loan losses, acquired loans		4,079	11,397
Net acquired loans		257,438	260,850
Net LHFI and acquired loans		8,750,672	8,040,798
Premises and equipment, net		179,339	184,987
Mortgage servicing rights		84,269	80,239
Goodwill		379,627	366,156
Identifiable intangible assets, net		16,360	20,680
Other real estate		43,228	62,051
Other assets		532,442	577,964
Total Assets		13,797,953	13,352,333
Deposits:
Noninterest-bearing		2,978,074	2,973,238
Interest-bearing		7,599,438	7,082,774
Total deposits		10,577,512	10,056,012
Federal funds purchased and securities sold under repurchase agreements		469,827	539,817
Short-term borrowings		971,049	769,778
Long-term Federal Home Loan Bank (FHLB) advances		946	251,049
Junior subordinated debt securities		61,856	61,856
Other liabilities		145,062	153,613
Total Liabilities		12,226,252	11,832,125
Shareholders' Equity
Common stock, no par value: Authorized: 250,000,000 shares Issued and outstanding: 67,746,094 shares - 2017; 67,628,618 shares - 2016		14,115	14,091
Capital surplus		369,124	366,563
Retained earnings		1,228,187	1,185,352
Accumulated other comprehensive loss, net of tax		(39,725)	(45,798)
Total Shareholders' Equity		1,571,701	1,520,208
Total Liabilities and Shareholders' Equity		$ 13,797,953	$ 13,352,333

[1] During the first quarter of 2017, Trustmark reclassified $36.7 million of acquired loans not accounted for under FASB ASC Topic 310-30 to LHFI due to the discount on these loans being fully amortized.