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| 0001564590-17-014402-index.html | 2017-07-28 16:18:14 | |
| 0001564590-17-014402.txt | 2017-07-28 16:18:14 | |
 0001564590-17-014402-xbrl.zip | 48451 | 2017-07-28 16:18:14 |
| FilingSummary.xml | 14456 | 2017-07-28 16:18:14 |
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| R10.htm | 57612 | 2017-07-28 16:18:14 |
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| R13.htm | 52294 | 2017-07-28 16:18:14 |
| R14.htm | 14866 | 2017-07-28 16:18:14 |
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| R16.htm | 5136 | 2017-07-28 16:18:14 |
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| R18.htm | 6102 | 2017-07-28 16:18:14 |
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| R2.htm | 73888 | 2017-07-28 16:18:14 |
| R20.htm | 74092 | 2017-07-28 16:18:14 |
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| R5.htm | 51089 | 2017-07-28 16:18:14 |
| R6.htm | 12932 | 2017-07-28 16:18:14 |
| R7.htm | 90519 | 2017-07-28 16:18:14 |
| R8.htm | 5886 | 2017-07-28 16:18:14 |
| R9.htm | 7200 | 2017-07-28 16:18:14 |
| report.css | 2767 | 2017-07-28 16:18:14 |
| saia-10q_20170630.htm | 1245627 | 2017-07-28 16:18:14 |
| saia-20170630.xml | 389494 | 2017-07-28 16:18:14 |
| saia-20170630.xsd | 21131 | 2017-07-28 16:18:14 |
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| saia-ex311_6.htm | 15871 | 2017-07-28 16:18:14 |
| saia-ex312_9.htm | 15899 | 2017-07-28 16:18:14 |
| saia-ex321_8.htm | 7492 | 2017-07-28 16:18:14 |
| saia-ex322_7.htm | 7482 | 2017-07-28 16:18:14 |
| Show.js | 1410 | 2017-07-28 16:18:14 |