Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2020

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

Summary of Components of Other Comprehensive Income 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:

(In thousands)	Before Tax		Tax Effect		Net of Tax
Year Ended December 31, 2020:
Net unrealized gains (losses) on available-for-sale investment securities and interest-only strips:
Net unrealized gains (losses) arising during the period	$	164,863	$	(39,674)	$	125,189
Reclassification of net (gains) losses from accumulated other comprehensive income (loss) to:
Total interest income	3,827		(885)		2,942
Net gains (losses) on investment securities	(2,309)		549		(1,760)
Other noninterest expense	29		(10)		19
Amounts reclassified from accumulated other comprehensive income (loss)	1,547		(346)		1,201
Net unrealized gains (losses) on available-for-sale investment securities and interest-only strips	166,410		(40,020)		126,390
Recognized postretirement prior service cost:
Net unrealized gains (losses) arising during the period	449		(107)		342
Reclassification of amortization of prior service cost to other noninterest expense	(46)		11		(35)
Net unrealized gains (losses) on recognized postretirement prior service cost	403		(96)		307
Net unrealized gains (losses) on net investment hedges	(5,452)		1,257		(4,195)
Foreign currency translation adjustment(1)	5,894		—		5,894
Total other comprehensive income (loss)	$	167,255	$	(38,859)	$	128,396
Year Ended December 31, 2019:
Net unrealized gains (losses) on available-for-sale investment securities and interest-only strips:
Net unrealized gains (losses) arising during the period	$	109,403	$	(25,707)	$	83,696
Reclassification of net (gains) losses from accumulated other comprehensive income (loss) to:
Total interest income	2,644		(716)		1,928
Net gains (losses) on investment securities	(1,517)		369		(1,148)
Other noninterest expense	(485)		129		(356)
Amounts reclassified from accumulated other comprehensive income (loss)	642		(218)		424
Net unrealized gains (losses) on available-for-sale investment securities and interest-only strips	110,045		(25,925)		84,120
Recognized postretirement prior service cost:
Reclassification of amortization of prior service cost to other noninterest expense	(46)		13		(33)
Net unrealized gains (losses) on net investment hedges	(7,001)		1,815		(5,186)
Foreign currency translation adjustment(1)	8,514		—		8,514
Total other comprehensive income (loss)	$	111,512	$	(24,097)	$	87,415
Year Ended December 31, 2018:
Net unrealized gains (losses) on available-for-sale investment securities and interest-only strips:
Unrealized gains (losses) arising during the period	$	(16,373)	$	4,002	$	(12,371)
Reclassification of net (gains) losses from accumulated other comprehensive income (loss) to:
Total interest income	1,066		(335)		731
Gains (losses) on debt securities, net	(127)		31		(96)
Other noninterest expense	90		(23)		67
Amounts reclassified from accumulated other comprehensive income (loss)	1,029		(327)		702
Net unrealized gains (losses) on available-for-sale investment securities and interest-only strips	(15,344)		3,675		(11,669)
Recognized postretirement prior service cost:
Reclassification of amortization of prior service cost to other noninterest expense	(46)		12		(34)
Net unrealized gains (losses) on net investment hedges	13,762		(3,312)		10,450
Foreign currency translation adjustment(1)	(13,368)		—		(13,368)
Total other comprehensive income (loss)	$	(14,996)	$	375	$	(14,621)

(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 Accumulated Other Comprehensive Income

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 Year Ended December 31, 2020:
Balance, beginning of period	$	56,098	$	9,800	$	(11,697)	$	76	$	54,277
Other comprehensive income (loss)	125,189		(4,195)		5,894		342		127,230
Amounts reclassified from accumulated other comprehensive income (loss)	1,201		—		—		(35)		1,166
Net other comprehensive income (loss)	126,390		(4,195)		5,894		307		128,396
Balance, end of period	$	182,488	$	5,605	$	(5,803)	$	383	$	182,673
At or For the Year Ended December 31, 2019:
Balance, beginning of period	$	(28,022)	$	14,986	$	(20,211)	$	109	$	(33,138)
Other comprehensive income (loss)	83,696		(5,186)		8,514		—		87,024
Amounts reclassified from accumulated other comprehensive income (loss)	424		—		—		(33)		391
Net other comprehensive income (loss)	84,120		(5,186)		8,514		(33)		87,415
Balance, end of period	$	56,098	$	9,800	$	(11,697)	$	76	$	54,277
At or For the Year Ended December 31, 2018:
Balance, beginning of period	$	(16,353)	$	4,536	$	(6,843)	$	143	$	(18,517)
Other comprehensive income (loss)	(12,371)		10,450		(13,368)		—		(15,289)
Amounts reclassified from accumulated other comprehensive income (loss)	702		—		—		(34)		668
Net other comprehensive income (loss)	(11,669)		10,450		(13,368)		(34)		(14,621)
Balance, end of period	$	(28,022)	$	14,986	$	(20,211)	$	109	$	(33,138)