Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Standards Update and Change in Accounting Principle [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

The following table illustrates the impact of adoption by loan segmentation:

	December 31, 2019				January 1, 2020
($ in Thousands)	Allowance for Loan Losses		Allowance for Unfunded Commitments		CECL Day 1 Adjustment		ACLL Beginning Balance
Commercial and industrial	$	91,133	$	12,276	$	48,921	$	152,330
Commercial real estate - owner occupied	10,284		127		(1,851)		8,560
Commercial and business lending	101,417		12,403		47,070		160,890
Commercial real estate - investor	40,514		530		2,287		43,331
Real estate construction	24,915		7,532		25,814		58,261
Commercial real estate lending	65,428		8,062		28,101		101,591
Total commercial	166,846		20,465		75,171		262,482
Residential mortgage	16,960		—		33,215		50,175
Home equity	10,926		1,038		14,240		26,204
Other consumer	6,639		405		8,520		15,564
Total consumer	34,525		1,443		55,975		91,943
Total loans	$	201,371	$	21,907	$	131,147	$	354,425