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Intangible Assets, Goodwill and Other | 3 Months Ended
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Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Intangible Assets Disclosure [Text Block] | Goodwill and Other Intangible Assets At March 31, 2023, Columbia had recorded $1.0 billion in goodwill related to the Merger, as compared to no goodwill at December 31, 2022. Goodwill represents the excess of the total acquisition price paid over the fair value of the assets acquired, net of fair value of liabilities assumed. Additional information on the Merger and purchase price allocations is provided in Note 2 - Business Combinations. Core deposit intangible assets values were determined by an analysis of the cost differential between the core deposits inclusive of estimated servicing costs and alternative funding sources for core deposits acquired through business combinations. The core deposit intangible assets recorded are amortized on an accelerated basis over a period of 10 years. No impairment losses separate from the scheduled amortization have been recognized in the periods presented. The following table summarizes other intangible assets as of March 31, 2023 and December 31, 2022.
| Other Intangible Assets
(in thousands) | Gross |  | Accumulated Amortization |  | Net
Balance, December 31, 2022 | $ | 54,561 |  |  | $ | (49,816) |  |  | $ | 4,745 |
Net additions | 710,230 |  |  | — |  |  | 710,230 |
Amortization | — |  |  | (12,660) |  |  | (12,660) |
Balance, March 31, 2023 | $ | 764,791 |  |  | $ | (62,476) |  |  | $ | 702,315 |
The table below presents the forecasted amortization expense for intangible assets at March 31, 2023:
(in thousands) |
Year | Expected Amortization
2023 | $ | 104,017 |
2024 | 123,735 |
2025 | 108,589 |
2026 | 94,502 |
2027 | 80,415 |
Thereafter | 191,057 |
Total intangible assets | $ | 702,315 |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI https://asc.fasb.org/topic&trid=2144416 + Details
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