Regulatory Capital Requirements (Tables)

3 Months Ended

Mar. 31, 2021

Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]

Schedule of Regulatory Capital Information for TCF and TCF Bank

Regulatory capital information for TCF and TCF Bank was as follows:

	TCF						TCF Bank
	At March 31,			At December 31,			At March 31,			At December 31,
(Dollars in thousands)	2021			2020			2021			2020			Well-capitalized Standard		Minimum Capital Requirement(1)
Regulatory Capital:
Common equity Tier 1 capital	$	4,101,896		$	4,103,007		$	4,095,564		$	4,093,974
Tier 1 capital	4,299,135			4,290,793			4,123,501			4,112,458
Total capital	4,994,676			5,026,611			4,799,935			4,831,026
Regulatory Capital Ratios:
Common equity Tier 1 capital ratio	11.06		%	11.45		%	11.06		%	11.45		%	6.50	%	4.50	%
Tier 1 risk-based capital ratio	11.59			11.98			11.14			11.50			8.00		6.00
Total risk-based capital ratio	13.47			14.03			12.96			13.51			10.00		8.00
Tier 1 leverage ratio	9.09			9.34			8.73			8.97			5.00		4.00

(1)Excludes capital conservation buffer of 2.5% at both March 31, 2021 and December 31, 2020.