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v3.23.2

Segment Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
May 31, 2023 | May 31, 2022 | May 31, 2021
Segment Reporting Information [Line Items] |  |  |  |
Total revenues to external customers |  | $ 822,447 | $ 527,159 | $ 468,459
Operating income (loss) |  | 37,515 | 58,618 | 74,169
Depreciation and amortization |  | 88,377 | 23,694 | 21,041
Interest expense |  | 55,961 | 72 | 78
Total Assets |  | 4,554,432 | 992,929 | 920,192
Expenditures for long-lived assets |  | 65,757 | 24,781 | 26,712
Operating Segments | Food Safety |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues to external customers |  | 546,797 | 259,979 | 234,244
Operating income (loss) |  | 60,414 | 38,581 | 33,725
Depreciation and amortization |  | 76,841 | 13,386 | 11,575
Total Assets |  | 3,970,356 | 304,461 | 295,065
Expenditures for long-lived assets |  | 52,169 | 7,842 | 13,730
Operating Segments | Animal Safety |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues to external customers |  | 275,650 | 267,180 | 234,215
Operating income (loss) |  | 43,332 | 52,546 | 48,685
Depreciation and amortization |  | 11,536 | 10,308 | 9,466
Total Assets |  | 338,507 | 307,417 | 244,039
Expenditures for long-lived assets |  | 13,588 | 16,939 | 12,982
Product Revenues |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues to external customers |  | 715,076 | 424,664 | 376,302
Product Revenues | Operating Segments | Food Safety |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues to external customers |  | 518,488 | 231,626 | 209,104
Product Revenues | Operating Segments | Animal Safety |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues to external customers |  | 196,588 | 193,038 | 167,198
Service Revenues |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues to external customers |  | 107,371 | 102,495 | 92,157
Service Revenues | Operating Segments | Food Safety |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues to external customers |  | 28,309 | 28,353 | 25,140
Service Revenues | Operating Segments | Animal Safety |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues to external customers |  | 79,062 | 74,142 | 67,017
Corporate and Eliminations | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating income (loss) | [1] | (66,231) | (32,509) | (8,241)
Interest expense | [1] | 55,961 | 72 | 78
Total Assets | [1] | $ 245,569 | $ 381,051 | $ 381,088
[1] | Includes corporate assets, including cash and cash equivalents, marketable securities, current and deferred tax accounts, and overhead expenses not allocated to specific business segments. Also includes the elimination of intersegment transactions.

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