Debt (Summary of Debt) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Line of Credit Facility [Line Items]
Debt, gross	$ 985,652	$ 961,174
Other debt	537	1,694
Less: Unamortized discount and debt issuance costs	4,427	4,994
Less: Debt, current portion	18,116	18,697
Debt, net of current portion	$ 963,109	$ 937,483
Weighted average effective interest rate	3.11%	3.23%
Revolving credit loans [Member]
Line of Credit Facility [Line Items]
Debt, gross	$ 290,000	$ 260,000
Weighted average effective interest rate	3.06%	3.27%
Term loans [Member]
Line of Credit Facility [Line Items]
Debt, gross	$ 635,938	$ 640,000
Weighted average effective interest rate	2.93%	3.02%
Mortgages [Member]
Line of Credit Facility [Line Items]
Debt, gross	$ 59,177	$ 59,480
Weighted average effective interest rate	5.22%	5.22%
Loans payable [Member]
Line of Credit Facility [Line Items]
Weighted average effective interest rate	5.00%	5.00%
Short-term debt [Member]
Line of Credit Facility [Line Items]
Weighted average effective interest rate	3.16%	3.11%
Long-term debt [Member]
Line of Credit Facility [Line Items]
Weighted average effective interest rate	3.11%	3.23%