Subsequent Events (Details) - Subsequent Event - Scenario, Forecast - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Sep. 30, 2017	Jun. 30, 2017
Subsequent Event [Line Items]
Expected costs		$ 14.4
Costs expected to result in future cash expenditures		$ 13.8
Minimum
Subsequent Event [Line Items]
Estimated annualized cost savings from reduction in personnel	$ 25.0
Maximum
Subsequent Event [Line Items]
Estimated annualized cost savings from reduction in personnel	$ 30.0
Reduction in Personnel
Subsequent Event [Line Items]
Percent of personnel expected to be effected by reduction in workforce		80.00%
Expected costs		$ 12.3
Lease Termination
Subsequent Event [Line Items]
Expected costs		$ 2.1

The quantified amount of the future effect on cash flows.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4)
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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- Definition

The quantified amount of the future effect on earnings.

+ References

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- Definition

Amount expected to be recognized in earnings for the specified restructuring cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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- Definition

Percentage of the total number of positions eliminated as of the balance sheet date since inception of the restructuring plan(s).

+ References

No definition available.

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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