Revenue Recognition - Additional Information - Contract Costs (Details) - Weighted Average	3 Months Ended
Mar. 31, 2021
Mass Markets Customers, Average Contract Life
Contract Costs [Line Items]
Length of customer life	30 months
Business Customer, Average Contract Life
Contract Costs [Line Items]
Length of customer life	29 months

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration