Revenue - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue [Line Items]
Software license arrangements, warranty period	90 days
Software license arrangements, initial post contract customer support period	1 year
Revenue allocated to remaining performance obligations	$ 678.0
Revenue allocated to remaining performance obligations, percentage to be recognized over the next 12 months	48.00%
Performance obligation satisfied in previous periods	$ 33.9
Costs to Obtain a Contract
Revenue [Line Items]
Capitalized costs to obtain or fulfill a contract, minimum amortization period	1 year
Capitalized costs to obtain or fulfill a contract, current	$ 0.5	$ 1.3
Capitalized costs to obtain or fulfill a contract, noncurrent	6.9	11.7
Costs to Obtain a Contract | Selling and Marketing
Revenue [Line Items]
Capitalized costs to obtain or fulfill a contract, amortization expense	6.6	8.4
Costs to Fulfill a Contract
Revenue [Line Items]
Capitalized costs to obtain or fulfill a contract, current	0.2	0.2
Capitalized costs to obtain or fulfill a contract, noncurrent	10.2	12.6
Costs to Fulfill a Contract | Cost of Revenue
Revenue [Line Items]
Capitalized costs to obtain or fulfill a contract, amortization expense	$ 5.9	$ 4.7