Segment Information Schedule of Revenue by Geographic Ares (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue United States	$ 109.1	$ 280.3	$ 272.8	$ 389.4
Revenue Japan	14.4	74.8	77.8	89.2
Revenue Belgium	0.0	35.1	55.5	35.1
Revenue Other Countries	0.1	0.3	12.1	0.4
Revenue Foreign	14.5	110.2	145.4	124.7
Revenues	$ 123.6	$ 390.5	$ 418.2	$ 514.1

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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