Fair Value of Financial Instruments - Fair Value of Financial Financial Instruments That Are Not Carried at Fair Value on a Recurring Basis (Details) - Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 81,713	$ 65,361
Other Long Term Investments	99,507	86,276
Mortgage Loans	42,632	35,302
Total Assets Measured at Fair Value	223,852	186,939
Long term debt	38,413	36,168
Total Financial liabilities not accounted for at fair value	38,413	36,168
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	81,713	65,361
Other Long Term Investments	0	0
Mortgage Loans	0	0
Total Assets Measured at Fair Value	81,713	65,361
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]
Cash and cash equivalents	0	0
Other Long Term Investments	1,249	0
Mortgage Loans	0	0
Total Assets Measured at Fair Value	1,249	0
Long term debt	38,413	36,168
Total Financial liabilities not accounted for at fair value	38,413	36,168
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Other Long Term Investments	0	0
Mortgage Loans	42,632	35,302
Total Assets Measured at Fair Value	42,632	35,302
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]
Other Long Term Investments	98,258	86,276
Total Assets Measured at Fair Value	$ 98,258	$ 86,276