Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2021

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

Summary of Components of Other Comprehensive Income (Loss), Reclassifications from Accumulated Other Comprehensive Income (Loss) to Various Financial Statement Line Items and the Related Tax Effects

The components of other comprehensive income (loss), reclassifications from accumulated other comprehensive income (loss) to various financial statement line items and the related tax effects were as follows:

	Three Months Ended March 31,
	2021						2020
(In thousands)	Before Tax		Tax Effect		Net of Tax		Before Tax		Tax Effect		Net of Tax
Net unrealized gains (losses) on available-for-sale investment securities and interest-only strips:
Net unrealized gains (losses) arising during the period	$	(237,054)	$	56,371	$	(180,683)	$	150,744	$	(35,607)	$	115,137
Reclassification of net (gains) losses from accumulated other comprehensive income (loss) to:
Total interest income	(44)		10		(34)		754		(177)		577
Net gains (losses) on investment securities	—		—		—		—		—		—
Other noninterest expense	137		(32)		105		173		(40)		133
Amounts reclassified from accumulated other comprehensive income (loss)	93		(22)		71		927		(217)		710
Net unrealized gains (losses) on available-for-sale investment securities and interest-only strips	(236,961)		56,349		(180,612)		151,671		(35,824)		115,847
Recognized postretirement prior service cost:
Reclassification of amortization of prior service cost to other noninterest expense	(23)		5		(18)		(12)		3		(9)
Foreign currency translation adjustment(1)	2,170		—		2,170		(14,426)		—		(14,426)
Net unrealized gains (losses) on net investment hedges	(2,046)		487		$	(1,559)	13,695		(3,214)		10,481
Total other comprehensive income (loss)	$	(236,860)	$	56,841	$	(180,019)	$	150,928	$	(39,035)	$	111,893

(1)Foreign investments are deemed to be permanent in nature and, therefore, TCF does not provide for taxes on foreign currency translation adjustments.

Schedule of Components of Accumulated Other Comprehensive Income (Loss)

The components of accumulated other comprehensive income (loss) were as follows:

(In thousands)	Net Unrealized Gains (Losses) on Available-for-Sale Investment Securities and Interest-only Strips		Net Unrealized Gains (Losses) on Net Investment Hedges		Foreign Currency Translation Adjustment		Recognized Postretirement Prior Service Cost		Total
At or For the Three Months Ended March 31, 2021
Balance, beginning of period	$	182,488	$	5,605	$	(5,803)	$	383	$	182,673
Other comprehensive income (loss)	(180,683)		(1,559)		2,170		—		(180,072)
Amounts reclassified from accumulated other comprehensive income (loss)	71		—		—		(18)		53
Net other comprehensive income (loss)	(180,612)		(1,559)		2,170		(18)		(180,019)
Balance, end of period	$	1,876	$	4,046	$	(3,633)	$	365	$	2,654
At or For the Three Months Ended March 31, 2020
Balance, beginning of period	$	56,098	$	9,800	$	(11,697)	$	76	$	54,277
Other comprehensive income (loss)	115,137		10,481		(14,426)		—		111,192
Amounts reclassified from accumulated other comprehensive income (loss)	710		—		—		(9)		701
Net other comprehensive income (loss)	115,847		10,481		(14,426)		(9)		111,893
Balance, end of period	$	171,945	$	20,281	$	(26,123)	$	67	$	166,170