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| | Three Months Ended | | Twelve Months Ended | |
(Dollars in thousands, except per share data) | | Dec. 31 | | Sept. 30, | | June 30, | | Mar. 31, | | Dec. 31, | | Dec. 31 | | Dec. 31, | |
RECONCILIATION OF GAAP TO Non-GAAP | | 2020 | | 2020 | | 2020 | | 2020 | | 2019 | | 2020 | | 2019 | |
Adjusted net income (non-GAAP) (3) | | | | | | | | | | | | | | | | | | | | | | |
Net income (loss) (GAAP) | | $ | 86,236 | | $ | 95,221 | | $ | (84,935) | | $ | 24,110 | | $ | 49,091 | | $ | 120,632 | | $ | 186,483 | |
Securities gains, net of tax | | | (29) | | | (12) | | | -- | | | -- | | | (20) | | | (41) | | | (2,173) | |
PCL - NonPCD loans & unfunded commitments | | | -- | | | -- | | | 92,212 | | | -- | | | -- | | | 92,212 | | | -- | |
Pension plan termination expense, net of tax | | | -- | | | -- | | | -- | | | -- | | | -- | | | -- | | | 7,641 | |
Swap termination expense, net of tax | | | 31,784 | | | | | | | | | | | | | | | 31,784 | | | | |
Provision (Benefit) for income taxes - carryback tax loss | | | (31,468) | | | | | | | | | | | | | | | (31,468) | | | | |
FHLB prepayment penalty, net of tax | | | 46 | | | -- | | | 154 | | | -- | | | -- | | | 200 | | | 107 | |
Merger and branch consolidation/acq. expense, net of tax | | | 16,255 | | | 17,413 | | | 31,191 | | | 3,510 | | | 1,252 | | | 68,369 | | | 3,701 | |
Adjusted net income (non-GAAP) | | $ | 102,824 | | $ | 112,622 | | $ | 38,622 | | $ | 27,620 | | $ | 50,323 | | $ | 281,688 | | $ | 195,759 | |
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Adjusted net income per common share - Basic (3) | | | | | | | | | | | | | | | | | | | | | | |
Earnings (loss) per common share - Basic (GAAP) | | $ | 1.22 | | $ | 1.34 | | $ | (1.96) | | $ | 0.72 | | $ | 1.46 | | $ | 2.20 | | | 5.40 | |
Effect to adjust for securities gains | | | (0.00) | | | (0.00) | | | -- | | | -- | | | (0.01) | | | (0.00) | | | (0.06) | |
Effect to adjust for PCL - NonPCD loans & unfunded commitments | | | -- | | | -- | | | 2.13 | | | -- | | | — | | | 1.68 | | | — | |
Effect to adjust for pension plan termination expense, net of tax | | | -- | | | -- | | | -- | | | -- | | | — | | | -- | | | 0.22 | |
Effect to adjust for swap termination expense, net of tax | | | 0.45 | | | | | | | | | | | | | | | 0.58 | | | | |
Effect to adjust for benefit for income taxes - carryback tax loss | | | (0.44) | | | | | | | | | | | | | | | (0.57) | | | | |
Effect to adjust for FHLB prepayment penalty, net of tax | | | 0.00 | | | -- | | | 0.00 | | | -- | | | — | | | 0.00 | | | 0.00 | |
Effect to adjust for merger & branch consol./acq expenses, net of tax | | | 0.23 | | | 0.25 | | | 0.72 | | | 0.10 | | | 0.04 | | | 1.25 | | | 0.11 | |
Adjusted net income per common share - Basic (non-GAAP) | | $ | 1.45 | | $ | 1.59 | | $ | 0.89 | | $ | 0.82 | | $ | 1.49 | | $ | 5.14 | | $ | 5.66 | |
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Adjusted net income per common share - Diluted (3) | | | | | | | | | | | | | | | | | | | | | | |
Earnings (loss) per common share - Diluted (GAAP) | | $ | 1.21 | | $ | 1.34 | | $ | (1.96) | | $ | 0.71 | | $ | 1.45 | | $ | 2.19 | | $ | 5.36 | |
Effect to adjust for securities gains | | | (0.00) | | | (0.00) | | | -- | | | -- | | | (0.01) | | | (0.00) | | | (0.06) | |
Effect to adjust for swap termination expense, net of tax | | | 0.45 | | | | | | | | | | | | | | | 0.58 | | | | |
Effect to adjust for benefit for income taxes - carryback tax loss | | | (0.44) | | | | | | | | | | | | | | | (0.57) | | | | |
Effect to adjust for PCL - NonPCD loans & unfunded commitments | | | -- | | | -- | | | 2.11 | | | -- | | | — | | | 1.67 | | | -- | |
Effect to adjust for pension plan termination expense, net of tax | | | -- | | | -- | | | -- | | | -- | | | — | | | -- | | | 0.22 | |
Effect to adjust for FHLB prepayment penalty, net of tax | | | -- | | | -- | | | 0.00 | | | -- | | | — | | | 0.00 | | | 0.00 | |
Effect to adjust for merger & branch consol./acq expenses, net of tax | | | 0.23 | | | 0.24 | | | 0.72 | | | 0.11 | | | 0.04 | | | 1.24 | | | 0.11 | |
Effect of adjusted weighted ave shares due to adjusted net income | | | — | | | — | | | 0.02 | | | — | | | — | | | | | | | |
Adjusted net income per common share - Diluted (non-GAAP) | | $ | 1.44 | | $ | 1.58 | | $ | 0.89 | | $ | 0.82 | | $ | 1.48 | | $ | 5.12 | | $ | 5.63 | |
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Adjusted Return of Average Assets (3) | | | | | | | | | | | | | | | | | | | | | | |
Return on average assets (GAAP) | | | 0.90 | % | | 1.00 | % | | -1.49 | % | | 0.60 | % | | 1.23 | % | | 0.42 | % | | 1.21 | % |
Effect to adjust for swap termination expense | | | 0.33 | % | | | | | | | | | | | | | | 0.12 | % | | | |
Effect to adjust for benefit for income taxes - carryback tax loss | | | -0.33 | % | | | | | | | | | | | | | | -0.11 | % | | | |
Effect to adjust for securities gains | | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | -0.01 | % |
Effect to adjust for PCL - NonPCD loans & unfunded commitments | | | 0.00 | % | | 0.00 | % | | 1.62 | % | | 0.00 | % | | 0.00 | % | | 0.32 | % | | 0.00 | % |
Effect to adjust for pension plan termination expense, net of tax | | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.05 | % |
Effect to adjust for FHLB prepayment penalty, net of tax | | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % |
Effect to adjust for merger & branch consol./acq expenses, net of tax | | | 0.18 | % | | 0.18 | % | | 0.55 | % | | 0.09 | % | | 0.03 | % | | 0.23 | % | | 0.02 | % |
Adjusted return on average assets (non-GAAP) | | | 1.08 | % | | 1.18 | % | | 0.68 | % | | 0.69 | % | | 1.26 | % | | 0.98 | % | | 1.27 | % |
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Adjusted Return of Average Equity (3) | | | | | | | | | | | | | | | | | | | | | | |
Return on average equity (GAAP) | | | 7.45 | % | | 8.31 | % | | -11.78 | % | | 4.15 | % | | 8.26 | % | | 3.35 | % | | 7.89 | % |
Effect to adjust for securities gains | | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | -0.09 | % |
Effect to adjust for swap termination expense | | | 2.74 | % | | | | | | | | | | | | | | 0.88 | % | | | |
Effect to adjust for benefit for income taxes - carryback tax loss | | | -2.72 | % | | | | | | | | | | | | | | -0.87 | % | | | |
Effect to adjust for PCL - NonPCD loans & unfunded commitments | | | 0.00 | % | | 0.00 | % | | 12.79 | % | | 0.00 | % | | 0.00 | % | | 2.56 | % | | 0.00 | % |
Effect to adjust for pension plan termination expense, net of tax | | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.32 | % |
Effect to adjust for FHLB prepayment penalty, net of tax | | | 0.00 | % | | 0.00 | % | | 0.02 | % | | 0.00 | % | | 0.00 | % | | 0.01 | % | | 0.01 | % |
Effect to adjust for merger & branch consol./acq expenses, net of tax | | | 1.41 | % | | 1.52 | % | | 4.33 | % | | 0.60 | % | | 0.21 | % | | 1.88 | % | | 0.15 | % |
Adjusted return on average equity (non-GAAP) | | | 8.88 | % | | 9.83 | % | | 5.36 | % | | 4.75 | % | | 8.47 | % | | 7.81 | % | | 8.28 | % |
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Adjusted Return on Average Common Tangible Equity (3) (5) | | | | | | | | | | | | | | | | | | | | | | |
Return on average common equity (GAAP) | | | 7.45 | % | | 8.31 | % | | -11.78 | % | | 4.15 | % | | 8.26 | % | | 3.35 | % | | 7.89 | % |
Effect to adjust for securities gains | | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | -0.09 | % |
Effect to adjust for swap termination expense | | | 2.74 | % | | | | | | | | | | | | | | 3.51 | % | | | |
Effect to adjust for benefit for income taxes - carryback tax loss | | | -2.72 | % | | | | | | | | | | | | | | -0.87 | % | | | |
Effect to adjust for PCL - NonPCD loans & unfunded commitments | | | 0.00 | % | | 0.00 | % | | 12.79 | % | | 0.00 | % | | 0.00 | % | | 2.56 | % | | 0.00 | % |
Effect to adjust for pension plan termination expense, net of tax | | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.00 | % | | 0.32 | % |
Effect to adjust for FHLB prepayment penalty, net of tax | | | 0.00 | % | | 0.00 | % | | 0.02 | % | | 0.00 | % | | 0.00 | % | | 0.01 | % | | 0.00 | % |
Effect to adjust for merger & branch consol./acq expenses, net of tax | | | 1.40 | % | | 1.52 | % | | 4.32 | % | | 0.60 | % | | 0.21 | % | | 1.90 | % | | 0.16 | % |
Effect to adjust for intangible assets | | | 6.48 | % | | 7.31 | % | | 4.88 | % | | 4.70 | % | | 7.70 | % | | 3.68 | % | | 7.54 | % |
Adjusted return on average common tangible equity (non-GAAP) | | | 15.35 | % | | 17.14 | % | | 10.23 | % | | 9.45 | % | | 16.17 | % | | 14.14 | % | | 15.82 | % |
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Adjusted efficiency ratio (5) | | | | | | | | | | | | | | | | | | | | | | |
Efficiency ratio | | | 76.26 | % | | 61.39 | % | | 80.52 | % | | 62.11 | % | | 61.64 | % | | | | | | |
Effect to adjust one-time related costs and benefits | | | -16.07 | % | | -5.61 | % | | -18.61 | % | | -2.39 | % | | -0.91 | % | | | | | | |
Adjusted efficiency ratio | | | 60.19 | % | | 55.78 | % | | 61.91 | % | | 59.72 | % | | 60.73 | % | | | | | | |
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Tangible Book Value Per Common Share (5) | | | | | | | | | | | | | | | | | | | | | | |
Book value per common share (GAAP) | | $ | 65.49 | | $ | 64.34 | | $ | 63.35 | | $ | 69.40 | | $ | 70.32 | | | | | | | |
Effect to adjust for intangible assets | | | (24.33) | | | (24.51) | | | (25.02) | | | (31.39) | | | (31.19) | | | | | | | |
Tangible book value per common share (non-GAAP) | | $ | 41.16 | | $ | 39.83 | | $ | 38.33 | | $ | 38.01 | | $ | 39.13 | | | | | | | |
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Tangible Equity-to-Tangible Assets (5) | | | | | | | | | | | | | | | | | | | | | | |
Equity-to-assets (GAAP) | | | 12.30 | % | | 12.07 | % | | 11.91 | % | | 13.95 | % | | 14.90 | % | | | | | | |
Effect to adjust for intangible assets | | | -4.20 | % | | -4.24 | % | | -4.35 | % | | -5.80 | % | | -6.02 | % | | | | | | |
Tangible equity-to-tangible assets (non-GAAP) | | | 8.10 | % | | 7.83 | % | | 7.56 | % | | 8.15 | % | | 8.88 | % | | | | | | |