Long‑Term Debt - Bank Credit Facility (Details)	6 Months Ended
	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Total long-term debt	$ 1,830,505,000	$ 1,435,992,000
Line of Credit
Debt Instrument [Line Items]
Total long-term debt	590,909,000	199,466,000
Credit Facility | Line of Credit
Debt Instrument [Line Items]
Remaining borrowing capacity	455,976,000	849,850,000
Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Accordion feature, increase limit	200,000,000
Revolving Credit Facility | New Credit Facility | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 850,000,000
Revolving Credit Facility | Credit Facility
Debt Instrument [Line Items]
Borrowings guaranteed through stock of foreign subsidiaries percentage	0.65
Secured Debt | 2021 Term Loan | Line of Credit
Debt Instrument [Line Items]
Debt instrument, face amount	$ 200,000,000
Debt issuance costs	540,000
Total long-term debt	197,035,000	199,466,000
Secured Debt | 2021 Term Loan | Line of Credit | March 31,2022 - December 31, 2023
Debt Instrument [Line Items]
Repayments of term loan per quarter	1,250,000
Secured Debt | 2021 Term Loan | Line of Credit | March 31, 2024 - November 14, 2025
Debt Instrument [Line Items]
Repayments of term loan per quarter	2,500,000
Letter of Credit | Credit Facility | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	50,000,000
Multi‑Currency Swing‑Line Sub‑Facility | Credit Facility | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	85,000,000
Letters of Credit And Surety Bonds | Credit Facility
Debt Instrument [Line Items]
Total long-term debt	$ 150,000	$ 150,000