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Stockholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2022
Stockholders' Equity Note [Abstract] |
Components of Accumulated Other Comprehensive Income (Loss) | A roll forward of the components of Accumulated Other Comprehensive Income (Loss) is presented in the table that follows:
﻿ | Available for Sale Securities |  | HTM Securities Transferred from AFS |  | Employee Benefit Plans |  | Cash Flow Hedges |  | Equity Method Investment |  | Total |
(in thousands) |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2020 | $ | 171,224 |  | $ | 276 |  | $ | (125,573 | ) | $ | 39,511 |  | $ | (5,369 | ) | $ | 80,069 |
Net change in unrealized gain or loss |  | (144,715 | ) |  | — |  |  | — |  |  | 353 |  |  | 438 |  |  | (143,924 | )
Reclassification of net income or loss realized and included in earnings |  | 2,166 |  |  | — |  |  | 3,970 |  |  | (19,941 | ) |  | 4,468 |  |  | (9,337 | )
Valuation adjustments to pension plan attributable to VERIP and curtailment |  | — |  |  | — |  |  | 59,606 |  |  | — |  |  | — |  |  | 59,606 |
Other valuation adjustments to employee benefit plans |  | — |  |  | — |  |  | (10,651 | ) |  | — |  |  | — |  |  | (10,651 | )
Amortization of unrealized net gain on securities transferred to HTM |  | — |  |  | (134 | ) |  | — |  |  | — |  |  | — |  |  | (134 | )
Income tax (expense) benefit |  | 31,952 |  |  | 30 |  |  | (11,783 | ) |  | 4,370 |  |  | — |  |  | 24,569 |
Balance, September 30, 2021 | $ | 60,627 |  | $ | 172 |  | $ | (84,431 | ) | $ | 24,293 |  | $ | (463 | ) | $ | 198 |
Balance, December 31, 2021 | $ | 11,037 |  | $ | 153 |  | $ | (80,946 | ) | $ | 16,284 |  | $ | (463 | ) | $ | (53,935 | )
Net change in unrealized gain or loss |  | (844,250 | ) |  | — |  |  | — |  |  | (118,110 | ) |  | 468 |  |  | (961,892 | )
Reclassification of net income or loss realized and included in earnings |  | 1,707 |  |  | — |  |  | 1,963 |  |  | (14,519 | ) |  | — |  |  | (10,849 | )
Valuation adjustments to employee benefit plans |  | — |  |  | — |  |  | (8,397 | ) |  | — |  |  | — |  |  | (8,397 | )
Transfer of net unrealized loss from AFS to HTM securities portfolio |  | 15,405 |  |  | (15,405 | ) |  | — |  |  | — |  |  | — |  |  | — |
Amortization of unrealized net gain or loss on securities transferred to HTM |  | — |  |  | 961 |  |  | — |  |  | — |  |  | — |  |  | 961 |
Income tax (expense) benefit |  | 186,685 |  |  | 3,260 |  |  | 1,452 |  |  | 29,934 |  |  | — |  |  | 221,331 |
Balance, September 30, 2022 | $ | (629,416 | ) | $ | (11,031 | ) | $ | (85,928 | ) | $ | (86,411 | ) | $ | 5 |  | $ | (812,781 | )
Line Items in Consolidated Income Statements Affected by Amounts Reclassified from Accumulated Other Comprehensive Income | The following table shows the line items in the consolidated statements of income affected by amounts reclassified from AOCI.
﻿ |  | Nine Months Ended |  |  |
Amount reclassified from AOCI (a) |  | September 30, |  |  | Affected line item on
(in thousands) |  | 2022 |  |  | 2021 |  |  | the statement of income
Loss on sale of AFS securities |  | $ | (1,707 | ) |  | $ | (2,166 | ) |  | Noninterest income
Tax effect |  |  | 385 |  |  |  | 487 |  |  | Income taxes
Net of tax |  |  | (1,322 | ) |  |  | (1,679 | ) |  | Net income
Amortization of unrealized net gain (loss) on securities transferred to HTM |  |  | (961 | ) |  |  | 134 |  |  | Interest income
Tax effect |  |  | 217 |  |  |  | (30 | ) |  | Income taxes
Net of tax |  |  | (744 | ) |  |  | 104 |  |  | Net income
Amortization of defined benefit pension and post-retirement items |  |  | (1,963 | ) |  |  | (3,970 | ) |  | Other noninterest expense (b)
Tax effect |  |  | 443 |  |  |  | 884 |  |  | Income taxes
Net of tax |  |  | (1,520 | ) |  |  | (3,086 | ) |  | Net income
Reclassification of unrealized gain on cash flow hedges |  |  | 5,786 |  |  |  | 18,771 |  |  | Interest income
Tax effect |  |  | (1,306 | ) |  |  | (4,188 | ) |  | Income taxes
Net of tax |  |  | 4,480 |  |  |  | 14,583 |  |  | Net income
Amortization of gain on terminated cash flow hedges |  |  | 8,733 |  |  |  | 1,170 |  |  | Interest income
Tax effect |  |  | (1,971 | ) |  |  | (261 | ) |  | Income taxes
Net of tax |  |  | 6,762 |  |  |  | 909 |  |  | Net income
Reclassification of unrealized loss on equity method investment |  |  | — |  |  |  | (4,468 | ) |  | Noninterest income
Tax effect |  |  | — |  |  |  | — |  |  | Income taxes
Net of tax |  |  | — |  |  |  | (4,468 | ) |  | Net income
Total reclassifications, net of tax |  | $ | 7,656 |  |  | $ | 6,363 |  |  | Net income
(a) Amounts in parentheses indicate reduction in net income (b) These AOCI components are included in the computation of net periodic pension and post-retirement cost that is reported with other noninterest expense (see Note 10 – Retirement Plans for additional details)

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