Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015
UNITED STATES
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 649.5	$ (3.2)	$ 31.3

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 45

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e32123-109318

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Balance Type:	credit
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