XML 63 R64.htm IDEA: XBRL DOCUMENT v3.20.1
Revenue - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Deferred contract costs and capitalized sales commissions      
Capitalized Contract Cost [Line Items]      
Capitalized contract cost, gross $ 80.6   $ 83.1
Capitalized sales commissions to selling, general and administrative expenses      
Capitalized Contract Cost [Line Items]      
Capitalized contract cost, amortization 3.0 $ 3.0  
Other deferred contract costs as a reduction of revenue      
Capitalized Contract Cost [Line Items]      
Capitalized contract cost, amortization $ 1.6 $ 1.5