Debt - Senior Unsecured Credit Facility (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2024	Dec. 31, 2023
Senior Unsecured Credit Facility
Debt outstanding	$ 1,121,908	$ 1,537,166
Unamortized discount	35,570
Debt financing costs	28,548
Unsecured Term Loans
Senior Unsecured Credit Facility
Debt outstanding	1,106,903	1,133,381
Unamortized discount	6,200	7,400
Debt financing costs	300	400
Unsecured Term Loans \| Unsecured Term Loan due 2026 — borrowing in euros
Senior Unsecured Credit Facility
Debt outstanding	$ 535,250	552,500
Effective interest rate (as a percent)	4.34%
Unsecured Term Loans \| GBP Term Loan due 2028 — borrowing in British pounds sterling
Senior Unsecured Credit Facility
Debt outstanding	$ 341,495	343,306
Unsecured Term Loans \| EUR Term Loan due 2028 — borrowing in euros
Senior Unsecured Credit Facility
Debt outstanding	$ 230,158	237,575
Unsecured Term Loans \| EURIBOR \| Unsecured Term Loan due 2026 — borrowing in euros
Senior Unsecured Credit Facility
Stated interest rate (as a percent)	4.34%
Variable interest rate (as a percent)	0.85%
Unsecured Term Loans \| EURIBOR \| EUR Term Loan due 2028 — borrowing in euros
Senior Unsecured Credit Facility
Variable interest rate (as a percent)	0.85%
Unsecured Term Loans \| SONIA \| GBP Term Loan due 2028 — borrowing in British pounds sterling
Senior Unsecured Credit Facility
Variable interest rate (as a percent)	0.85%
Unsecured Revolving Credit Facility:
Senior Unsecured Credit Facility
Debt outstanding	$ 15,005	403,785
Unsecured Revolving Credit Facility: \| JPY, Unsecured Credit Facility due 2029
Senior Unsecured Credit Facility
Debt outstanding	15,005	17,035
Unsecured Revolving Credit Facility: \| Euro Unsecured Credit Facility due 2029
Senior Unsecured Credit Facility
Debt outstanding	$ 0	$ 386,750
Unsecured Revolving Credit Facility: \| JPY LIBOR \| JPY, Unsecured Credit Facility due 2029
Senior Unsecured Credit Facility
Variable interest rate (as a percent)	0.775%

Amount of short-term and long-term debt and lease obligation.

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- References

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Amount, after accumulated amortization, of debt discount (premium).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

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

+ References

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