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v3.20.2

Long-Term Debt - Additional Information (Detail) | 3 Months Ended | 6 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2020 | Jun. 30, 2020 USD ($) | Jun. 30, 2020 EUR (€) | Dec. 31, 2019 USD ($) | Oct. 31, 2019 EUR (€) | Jul. 01, 2019 | Feb. 08, 2019 USD ($) | Feb. 08, 2019 EUR (€)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Interest rate on debt |  |  |  |  |  | 1.25% |  |
Debt instrument covenant compliance leverage ratio, threshold |  | 4.0 |  |  |  |  |  |
Debt instrument covenant compliance leverage ratio, actual |  | 2.4 |  |  |  |  |  |
Long-term debt, maturity date |  | Feb. 08, 2024 |  |  |  |  |  |
Scenario, Forecast [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument covenant compliance leverage ratio, threshold | 4.5 |  |  |  |  |  |  |
Floating-to-fixed Interest Rate Swap Agreement [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Derivative notional amount | € |  |  |  |  | € 180,000,000 |  |  |
Derivative fixed interest rate |  |  |  |  | 0.0395% |  |  |
Loans variable rate of interest | € |  |  |  |  | € 180,000,000 |  |  |
Minimum [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Long-term debt percentage bearing fixed Interest rate |  |  |  |  | 0.00% |  |  |
Term Loans [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity | € |  |  | € 220,000,000 |  |  |  |  | € 220,000,000
5.375% Notes [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Interest rate on debt |  | 5.375% | 5.375% |  |  |  |  |
Revolving Credit Facility [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity | $ |  |  |  |  |  |  | $ 400,000,000 |
Federal fund rate spread |  | 1.00% |  |  |  |  |  |
Revolving Credit Facility [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Federal fund rate spread |  | 0.125% |  |  |  |  |  |
Revolving Credit Facility [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Federal fund rate spread |  | 1.00% |  |  |  |  |  |
Revolving Credit Facility [Member] | Federal Funds Rate [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Federal fund rate spread |  | 0.50% |  |  |  |  |  |
Revolving Credit Facility [Member] | Euro Rate [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Federal fund rate spread |  | 1.125% |  |  |  |  |  |
Revolving Credit Facility [Member] | Euro Rate [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Federal fund rate spread |  | 2.00% |  |  |  |  |  |
Revolving Credit Facility [Member] | EURIBOR [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Federal fund rate spread |  | 1.125% |  |  |  |  |  |
Revolving Credit Facility [Member] | EURIBOR [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Federal fund rate spread |  | 2.00% |  |  |  |  |  |
Letters of Credit [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Letters of credit issued | $ |  | $ 7,300,000 |  | $ 7,300,000 |  |  |  |
Letters of credit outstanding | $ |  | $ 0 |  |  |  |  |  |

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