The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

Name:	us-gaap_EarlyRepaymentOfSeniorDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Subsequent Events (Details) - Secured Debt [Member] - Senior Secured Term Loan Facility Due September 2023 [Member] - USD ($) $ in Millions				6 Months Ended
	Jul. 31, 2018	Apr. 30, 2018	Feb. 28, 2018	Jun. 30, 2018
Subsequent Event [Line Items]
Early Repayment of Senior Debt		$ 25.0	$ 25.0	$ 50.0
Subsequent Event [Member]
Subsequent Event [Line Items]
Early Repayment of Senior Debt	$ 25.0