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Note 10 - Financing Arrangements (Details Textual) - USD ($) $ in Millions	Jun. 30, 2022	May 31, 2022	May 30, 2022
Credit Facility [Member]
Long-Term Line of Credit, Total		$ 5.0
Revolving Credit Facility [Member] | Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		100.0
Letter of Credit [Member] | Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		15.0
Swing Line Subfacility [Member] | Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		20.0
Line of Credit Maturing February 2024 [Member]
Letters of Credit Outstanding, Amount			$ 20.0
Line of Credit Maturing May 2024 [Member]
Letters of Credit Outstanding, Amount			6.5
Bank Guarantee [Member]
Letters of Credit Outstanding, Amount			$ 3.0
Senior Term Loan Facility [Member]
Debt Instrument, Face Amount		$ 350.0
Debt Instrument, Covenant, Maximum Senior Secured Net Leverage Ratio		4.50
Debt Instrument, Covenant, Minimum Fixed Charge Coverage Ratio		1.20
Debt Issuance Costs, Net, Total	$ 12.8
Senior Term Loan Facility [Member] | Credit Facility [Member] | Base Rate [Member] | Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate		0.75%
Senior Term Loan Facility [Member] | Credit Facility [Member] | Base Rate [Member] | Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate		1.75%
Senior Term Loan Facility [Member] | Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	2.75%
Senior Term Loan Facility [Member] | Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate		1.75%
Senior Term Loan Facility [Member] | Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate		2.75%
Senior Secured Credit Agreement for Periods Ending June 30, 2023 and September 30, 2023 [Member]
Debt Instrument, Covenant, Maximum Senior Secured Net Leverage Ratio		4.00
Debt Instrument, Covenant, Maximum Total Net Leverage Ratio		5.25
Senior Secured Credit Agreement for Periods Ending December 31, 2023 and After [Member]
Debt Instrument, Covenant, Maximum Senior Secured Net Leverage Ratio		3.50
Debt Instrument, Covenant, Maximum Total Net Leverage Ratio		4.75
Senior Secured Credit Agreement for Periods Ending June30, September 30, December 31, 2022 and March 31, 2023 [Member]
Debt Instrument, Covenant, Maximum Total Net Leverage Ratio		5.75
Subordinated Credit Facility [Member]
Debt Instrument, Face Amount		$ 90.0
Subordinated Credit Facility [Member] | Minimum [Member]
Debt Instrument, Prepayment Fee, Percent		1.00%
Subordinated Credit Facility [Member] | Maximum [Member]
Debt Instrument, Prepayment Fee, Percent		2.00%
Subordinated Credit Facility [Member] | Base Rate [Member]
Debt Instrument, Basis Spread on Variable Rate		8.00%
Subordinated Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	9.00%	9.00%
Subordinated Credit Agreement for Periods Ending June30, September 30, December 31, 2022 and March 31, 2023 [Member]
Debt Instrument, Covenant, Maximum Senior Secured Net Leverage Ratio		5.40
Debt Instrument, Covenant, Maximum Total Net Leverage Ratio		6.90
Subordinated Credit Agreement for Periods Ending June 30, 2023 and September 30, 2023 [Member]
Debt Instrument, Covenant, Maximum Senior Secured Net Leverage Ratio		4.80
Debt Instrument, Covenant, Maximum Total Net Leverage Ratio		6.30
Subordinated Credit Agreement for Periods Ending December 31, 2023 and After [Member]
Debt Instrument, Covenant, Maximum Senior Secured Net Leverage Ratio		4.20
Debt Instrument, Covenant, Maximum Total Net Leverage Ratio		5.70
Senior Secured Credit Agreement and Subordinated Credit Agreement [Member]
Debt Issuance Costs, Net, Total	$ 15.2
Credit Facility [Member]
Debt Issuance Costs, Net, Total	$ 2.4

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Requirement for maximum senior secured net leverage ratio under the debt agreement.

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Requirement for maximum total net leverage ratio under the debt agreement.

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Prepayment fee as a percentage amount under debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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