| 2026-02-27 | 10-K | Stock registered under Section 12(b) | Class A Common Stock, par value $0.10 per share · AMTB · NYSE |
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| 2025-03-05 | 10-K | Stock registered under Section 12(b) | Class A Common Stock, par value $0.10 per share · AMTB · NYSE |
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| 2024-03-07 | 10-K | Stock registered under Section 12(b) | Class A Common Stock, par value $0.10 per share · AMTB · NYSE |
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| 2023-07-31 | 10-Q | Stock registered under Section 12(b) | Class A Common Stock · AMTB · NASDAQ |
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| 2023-05-02 | 10-Q | Stock registered under Section 12(b) | Class A Common Stock · AMTB · NASDAQ |
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| 2023-03-01 | 10-K | Stock registered under Section 12(b) | Class A Common Stock, par value $0.10 per share · AMTB · NASDAQ |
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| 2023-03-01 | 10-K | Well-known seasoned issuer | Yes |
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| 2022-10-28 | 10-Q | Stock registered under Section 12(b) | Class A Common Stock · AMTB · NASDAQ |
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| 2022-10-28 | 10-Q | Emerging growth company | Yes |
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| 2022-07-29 | 10-Q | Stock registered under Section 12(b) | Class A Common Stock · AMTB · NASDAQ |
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| 2022-07-29 | 10-Q | Emerging growth company | Yes |
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| 2022-04-29 | 10-Q | Stock registered under Section 12(b) | Class A Common Stock · AMTB · NASDAQ |
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| 2022-04-29 | 10-Q | Emerging growth company | Yes |
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| 2022-03-04 | 10-K | Stock registered under Section 12(b) | Class A Common Stock, par value $0.10 per share · AMTB · NASDAQ |
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| 2022-03-04 | 10-K | Emerging growth company | Yes |
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| 2021-10-29 | 10-Q | Shares outstanding CommonClassA as of 2021-10-28 | 29,055,679 |
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| 2021-10-29 | 10-Q | Shares outstanding CommonClassB as of 2021-10-28 | 8,471,120 |
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| 2021-10-29 | 10-Q | Stock registered under Section 12(b) | Class A Common Stock · AMTB · NASDAQ |
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| 2021-10-29 | 10-Q | Stock registered under Section 12(b) | Class B Common Stock · AMTBB · NASDAQ |
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| 2021-10-29 | 10-Q | Emerging growth company | Yes |
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| 2021-07-30 | 10-Q | Shares outstanding CommonClassA as of 2021-07-26 | 29,010,321 |
|---|
| 2021-07-30 | 10-Q | Shares outstanding CommonClassB as of 2021-07-26 | 8,471,120 |
|---|
| 2021-07-30 | 10-Q | Stock registered under Section 12(b) | Class A Common Stock · AMTB · NASDAQ |
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| 2021-07-30 | 10-Q | Stock registered under Section 12(b) | Class B Common Stock · AMTBB · NASDAQ |
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| 2021-07-30 | 10-Q | Emerging growth company | Yes |
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| 2021-05-07 | 10-Q | Shares outstanding CommonClassA as of 2021-05-06 | 29,001,646 |
|---|
| 2021-05-07 | 10-Q | Shares outstanding CommonClassB as of 2021-05-06 | 8,748,667 |
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| 2021-05-07 | 10-Q | Stock registered under Section 12(b) | Class A Common Stock · AMTB · NASDAQ |
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| 2021-05-07 | 10-Q | Stock registered under Section 12(b) | Class B Common Stock · AMTBB · NASDAQ |
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| 2021-05-07 | 10-Q | Emerging growth company | Yes |
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| 2021-03-19 | 10-K | Shares outstanding CommonClassA as of 2021-03-05 | 28,996,122 |
|---|
| 2021-03-19 | 10-K | Shares outstanding CommonClassB as of 2021-03-05 | 9,036,352 |
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| 2021-03-19 | 10-K | Stock registered under Section 12(b) | Class A Common Stock, par value $0.10 per share · AMTB · NASDAQ |
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| 2021-03-19 | 10-K | Stock registered under Section 12(b) | Class B Common Stock, par value $0.10 per share · AMTBB · NASDAQ |
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| 2021-03-19 | 10-K | Emerging growth company | Yes |
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| 2020-11-06 | 10-Q | Shares outstanding CommonClassA as of 2020-11-05 | 28,858,853 |
|---|
| 2020-11-06 | 10-Q | Shares outstanding CommonClassB as of 2020-11-05 | 13,286,137 |
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| 2020-11-06 | 10-Q | Stock registered under Section 12(b) | Class A Common Stock · AMTB · NASDAQ |
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| 2020-11-06 | 10-Q | Stock registered under Section 12(b) | Class B Common Stock · AMTBB · NASDAQ |
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| 2020-11-06 | 10-Q | Emerging growth company | Yes |
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| 2020-08-07 | 10-Q | Shares outstanding CommonClassA as of 2020-08-07 | 28,873,196 |
|---|
| 2020-08-07 | 10-Q | Shares outstanding CommonClassB as of 2020-08-07 | 13,286,137 |
|---|
| 2020-08-07 | 10-Q | Stock registered under Section 12(b) | Class A Common Stock · AMTB · NASDAQ |
|---|
| 2020-08-07 | 10-Q | Stock registered under Section 12(b) | Class B Common Stock · AMTBB · NASDAQ |
|---|
| 2020-08-07 | 10-Q | Emerging growth company | Yes |
|---|
| 2020-05-08 | 10-Q | Emerging growth company | Yes |
|---|
| 2020-03-16 | 10-K | Emerging growth company | Yes |
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| 2019-11-12 | 10-Q | Emerging growth company | Yes |
|---|
| 2019-08-12 | 10-Q | Emerging growth company | Yes |
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| 2019-05-10 | 10-Q | Emerging growth company | Yes |
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| 2019-04-01 | 10-K | Emerging growth company | Yes |
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| 2018-11-13 | 10-Q | Emerging growth company | Yes |
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