Segment Information (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Summary of Certain Operating Information for Reportable Segments

The following is a summary of certain operating information for reportable segments:

(Dollars in thousands)	Community Banking		Specialty Finance		Wealth Management		Total Operating Segments		Intersegment Eliminations			Consolidated
2019
Net interest income	$	841,601	$	161,720	$	30,118	$	1,033,439	$	21,480		$	1,054,919
Provision for credit losses	47,914		5,950		—		53,864		—			53,864
Non-interest income	274,652		79,467		100,121		454,240		(47,068		)	407,172
Non-interest expense	747,202		111,377		95,135		953,714		(25,588		)	928,126
Income tax expense	82,639		34,424		7,341		124,404		—			124,404
Net income	$	238,498	$	89,436	$	27,763	$	355,697	$	—		$	355,697
Total assets at end of year	$	29,583,112	$	5,916,835	$	1,120,636	$	36,620,583	$	—		$	36,620,583
2018
Net interest income	$	791,838	$	136,981	$	17,455	$	946,274	$	18,629		$	964,903
Provision for credit losses	28,586		6,246		—		34,832		—			34,832
Non-interest income	238,668		65,898		91,896		396,462		(40,312		)	356,150
Non-interest expense	681,749		84,248		81,774		847,771		(21,683		)	826,088
Income tax expense	79,361		30,325		7,281		116,967		—			116,967
Net income	$	240,810	$	82,060	$	20,296	$	343,166	$	—		$	343,166
Total assets at end of year	$	25,438,454	$	5,073,011	$	733,384	$	31,244,849	$	—		$	31,244,849
2017
Net interest income	$	677,481	$	118,320	$	18,919	$	814,720	$	17,356		$	832,076
Provision for credit losses	27,059		2,709		—		29,768		—			29,768
Non-interest income	211,354		60,405		84,312		356,071		(36,565		)	319,506
Non-interest expense	599,455		74,559		77,012		751,026		(19,209		)	731,817
Income tax expense	87,486		35,775		9,054		132,315		—			132,315
Net income	$	174,835	$	65,682	$	17,165	$	257,682	$	—		$	257,682
Total assets at end of year	$	22,781,923	$	4,515,766	$	618,281	$	27,915,970	$	—		$	27,915,970