Organization and Summary of Significant Accounting Policies - Pension and Other Postretirement Benefit Plans and Advertising and Marketing Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Expected long term rate of return for defined benefit plans
Time period for average rate of return	20 years
Percentage of greater of projected benefit obligation or fair value of plan assets for amortization of actuarial gains or losses	5.00%
Amortization period for actuarial gains and losses that exceed threshold	5 years
Advertising and marketing costs
Advertising and marketing	$ 6,108	$ 5,695	$ 6,910