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| 0000950170-22-013210-index.html | 2022-07-27 16:07:39 | |
| 0000950170-22-013210.txt | 2022-07-27 16:07:39 | |
 0000950170-22-013210-xbrl.zip | 126813 | 2022-07-27 16:07:39 |
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| R6.htm | 57008 | 2022-07-27 16:07:39 |
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| R8.htm | 86326 | 2022-07-27 16:07:39 |
| R9.htm | 7541 | 2022-07-27 16:07:39 |
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| saia-20220630.htm | 1716080 | 2022-07-27 16:07:39 |
| saia-20220630.xsd | 30040 | 2022-07-27 16:07:39 |
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| saia-20220630_lab.xml | 233819 | 2022-07-27 16:07:39 |
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| saia-ex31_1.htm | 15152 | 2022-07-27 16:07:39 |
| saia-ex31_2.htm | 15408 | 2022-07-27 16:07:39 |
| saia-ex32_1.htm | 9374 | 2022-07-27 16:07:39 |
| saia-ex32_2.htm | 9419 | 2022-07-27 16:07:39 |
| Show.js | 1085 | 2022-07-27 16:07:39 |