Debt - General Information (Details) - Senior Secured Term Loan Facility - Secured Debt $ in Millions	Oct. 04, 2017 USD ($)
Debt Instrument [Line Items]
Face amount	$ 200.0
Issue amount	$ 197.6
Percentage of par (as a percent)	98.80%
Discount	$ 2.4
Discount percentage (as a percent)	1.20%
Aggregate increase amount	$ 75.0
Maximum secured leverage ratio	3.00

Face (par) amount of debt instrument at time of issuance.

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Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant