Fair Value Disclosures (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Mutual funds	$ 0	$ 1,228
Mutual Fund
Mutual funds	0	1,228
Mutual Fund | Level 1
Mutual funds	0	1,228
Mutual Fund | Level 2
Mutual funds	0	0
Mutual Fund | Level 3
Mutual funds	$ 0	$ 0