Description of Business and Accounting Policies - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) Customer	Mar. 31, 2019	Dec. 31, 2019 Customer
Description of Business and Accounting Policies [Line Items]
Number of customers, exceeds 10% of total accounts receivable | Customer	1		1
Revenue derived from foreign operations	5.00%	5.00%
Bad debt expense, incremental increase	$ 1.6
Deferred tax assets, valuation allowance released	14.4
Tax effect of nondeductible transaction costs	6.5
Released amount of sales and use tax reserve	$ 2.3
Verizon Communications Inc. [Member]
Description of Business and Accounting Policies [Line Items]
Accounts receivable from one customer greater than 10%, percentage	13.00%		25.00%