Business and Summary of Significant Accounting Policies - Accounts Receivable Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Bad Debt Expense	$ 1,337	$ 227,960	$ 170,574
Provision for Returns and Uncollected Renewal Payments	321,626	40,128	32,815
Accounts Receivable Provision	$ 322,963	$ 268,088	$ 203,389