Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

Acquisitions - Asset Acquisition (Details) - USD ($) $ in Thousands				1 Months Ended	12 Months Ended
	Oct. 14, 2021	Jun. 01, 2021	Apr. 01, 2021	Oct. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jul. 01, 2021
Business Acquisition [Line Items]
Noninterest Expense Transfer Agent and Custodian Fees			$ 3,000,000
Repurchase of non-controlling interest			11,200		$ 11,191	$ 0
Contingent consideration as part of asset acquisition			$ 27,200		$ 27,200	$ 0	$ 0
Decrease in custodial cash held	$ 960,000			$ 960,000
U.S. Health
Business Acquisition [Line Items]
Ownership percentage by noncontrolling interest			4.53%		4.53%
Health Savings Account Assets of Bell Bank’s Healthcare Bank Division
Business Acquisition [Line Items]
Payments to acquire productive assets			$ 200,000
Deferred payments			25,000
Additional deferred payments		$ 25,000	25,000
Decrease in payment of acquire business		12,500
Additional deferred payments to acquire business		$ 12,500
Asset acquisition, contingent consideration arrangements, range of outcomes, value, high								$ 225,000
Finite-lived intangible assets acquired			$ 263,400
Weighted average life			5 years 7 months 6 days
Deferred liability			$ 47,400