Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Fair Value Measurements (Details Textual)

Note 5 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands	1 Months Ended			3 Months Ended		6 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2020	Oct. 31, 2018
Interest Expense, Total				$ 3,585	$ 4,872	$ 8,002	$ 10,094
Nonoperating Income (Expense), Total				5,373	113,334	(4,381)	97,812
Income Tax Expense (Benefit), Total				10,224	$ 30,704	16,168	34,111
Business Combination, Liabilities Arising from Contingencies, Amount Recognized				10,800		10,800
QT Holdings Corporation [Member]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High				51,000		51,000
Business Combination, Liabilities Arising from Contingencies, Amount Recognized				5,300		5,300
B-MoGen [Member]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High				38,000		38,000
Business Combination, Liabilities Arising from Contingencies, Amount Recognized				5,500		5,500
Reclassification out of Accumulated Other Comprehensive Income [Member] \| AOCI Attributable to Parent [Member]
Interest Expense, Total						5,026	821
Nonoperating Income (Expense), Total						(512)
Income Tax Expense (Benefit), Total						(1,289)	(192)
Reclassification out of Accumulated Other Comprehensive Income [Member] \| Designated as Hedging Instrument [Member] \| AOCI Attributable to Parent [Member]
Interest Expense, Total						5,000	800
Nonoperating Income (Expense), Total						(500)
Income Tax Expense (Benefit), Total						(1,300)	$ (200)
Embedded Derivative Financial Instruments [Member] \| Cash Flow Hedging [Member]
Derivative, Notional Amount									$ 380,000
Derivative Notional Amount, Decrease in Period	$ 200,000	$ 80,000	$ 100,000
Embedded Derivative Financial Instruments [Member] \| Cash Flow Hedging [Member] \| Other Noncurrent Liabilities [Member]
Derivative Notional Amount, Dedesignated				80,000		80,000		$ 80,000
Derivative, Fair Value, De-designed				1,900		1,900
CCXI [Member]
Investments, Total				6,600		6,600		6,600
Investments, Fair Value Disclosure, Total				$ 8,300		$ 8,300		$ 8,000