Description of Business and Accounting Policies - Narrative (Details) - Customer	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Description of Business and Accounting Policies [Line Items]
Revenue derived from foreign operations	7.00%	6.00%
Verizon Communications Inc. and CVS Health Corporation [Member]
Description of Business and Accounting Policies [Line Items]
Number of customers, exceeds 10% of total accounts receivable	2
Verizon Communications Inc. [Member]
Description of Business and Accounting Policies [Line Items]
Number of customers, exceeds 10% of total accounts receivable			1
Accounts receivable from two customers greater than 10%, percentage	12.00%
Accounts receivable from one customer greater than 10%, percentage			26.00%
CVS Health Corporation [Member]
Description of Business and Accounting Policies [Line Items]
Accounts receivable from two customers greater than 10%, percentage	11.00%