Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Accounting Standards Update and Change in Accounting Principle

The following table illustrates the impact of ASC 326 adoption:

	As of January 1, 2020
in thousands	Pre-ASC 326 Adoption		Impact of ASC 326 Adoption		As Reported under ASC 326
Assets
Allowance for loan losses:
Commercial and industrial	$	145,782	$	(2,310)	$	143,472
Commercial real estate	67,430		(651)		66,779
Consumer	68,190		85,955		154,145
Total allowance for loan losses	$	281,402	$	82,994	$	364,396
Liabilities
Reserve for unfunded commitments	$	1,375	$	27,440	$	28,815
Allowance for credit losses	$	282,777	$	110,434	$	393,211

The following table illustrates the distribution of the ASC 326 adoption impact to loans and equity:

	As of January 1, 2020
in thousands	Pre-ASC 326 Adoption		Impact of ASC 326 Adoption		As Reported under ASC 326
Loans, net	$	36,881,048	$	(20,767)	$	36,860,281
Retained earnings	1,068,327		(35,721)		1,032,606