Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Cash and cash equivalents:
Cash and due from banks	$ 531,918	$ 491,787
Interest-bearing deposits with other banks	728,677	736,584
Total cash and cash equivalents	1,260,595	1,228,371
Federal Home Loan Bank and Federal Reserve Bank stocks, at cost	320,436	442,440
Investment securities:
Available-for-sale, at fair value (amortized cost of $8,041,173 and $6,639,277)	8,284,723	6,720,001
Held-to-maturity, at amortized cost (fair value of $193,554 and $144,844)	184,359	139,445
Total investment securities	8,469,082	6,859,446
Loans and leases held-for-sale (includes $221,784 and $91,202 at fair value)	222,028	199,786
Loans and leases	34,466,408	34,497,464
Allowance for loan and lease losses	(525,868)	(113,052)
Loans and leases, net	33,940,540	34,384,412
Premises and equipment, net	470,131	533,138
Goodwill	1,313,046	1,299,878
Other intangible assets, net	146,377	168,368
Loan servicing rights	38,303	56,313
Other assets	1,621,949	1,479,401
Total assets	47,802,487	46,651,553
Deposits:
Noninterest-bearing	11,036,086	7,970,590
Interest-bearing	27,820,233	26,497,873
Total deposits	38,856,319	34,468,463
Short-term borrowings	617,363	2,669,145
Long-term borrowings	1,374,732	2,354,448
Other liabilities	1,264,776	1,432,256
Total liabilities	42,113,190	40,924,312
Equity
Preferred stock	169,302	169,302
Common stock	152,566	152,966
Additional paid-in capital	3,457,802	3,462,080
Retained earnings	1,735,201	1,896,427
Accumulated other comprehensive income	182,673	54,277
Other	(26,731)	(28,037)
Total TCF Financial Corporation shareholders' equity	5,670,813	5,707,015
Non-controlling interest	18,484	20,226
Total equity	5,689,297	5,727,241
Total liabilities and equity	$ 47,802,487	$ 46,651,553