Fair Value of Financial Instruments - Fair Value of Financial Instruments That Are Not Carried at Fair Value on a Recurring Basis (Details) - Nonrecurring - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Accounts	$ 179,689	$ 81,713
Other Long Term Investments	99,020	99,507
Mortgage Loans	38,999	42,632
Total Assets Measured at Fair Value	317,708	223,852
Long Term Debt	38,370	38,413
Total Financial liabilities not accounted for at fair value	38,370	38,413
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Accounts	99,947	81,713
Other Long Term Investments	0	0
Mortgage Loans	0	0
Total Assets Measured at Fair Value	99,947	81,713
Long Term Debt	0	0
Total Financial liabilities not accounted for at fair value	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Accounts	79,742	0
Other Long Term Investments	1,277	1,249
Mortgage Loans	0	0
Total Assets Measured at Fair Value	81,019	1,249
Long Term Debt	38,370	38,413
Total Financial liabilities not accounted for at fair value	38,370	38,413
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Accounts	0	0
Other Long Term Investments	0	0
Mortgage Loans	38,999	42,632
Total Assets Measured at Fair Value	38,999	42,632
Long Term Debt	0	0
Total Financial liabilities not accounted for at fair value	0	0
Net Asset Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Accounts	0	0
Other Long Term Investments	97,743	98,258
Mortgage Loans	0	0
Total Assets Measured at Fair Value	97,743	98,258
Long Term Debt	0	0
Total Financial liabilities not accounted for at fair value	$ 0	$ 0