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Investments - Schedule of Other Investments (Details) $ in Thousands	Jun. 30, 2021 USD ($)
Other Investments
Other investments, cost	$ 59,310
Total other investments	60,078
Certificates of Deposit
Other Investments
Other investments, cost	300
Unrealized Loss	0
Unrealized Gain	0
Fair value - certificates of deposit	300
Limited Partnership
Other Investments
Other investments, cost	14,338
Unrealized Loss	36
Unrealized Gain	805
Fair value - partnerships	15,107
Short-term Investments
Other Investments
Other investments, cost	44,672
Unrealized Loss	1
Unrealized Gain	0
Fair Value - short term investments	44,671
Other Investments
Other Investments
Unrealized Loss	37
Unrealized Gain	$ 805

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