v3.8.0.1

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (PARENTHETICAL) - Long-term Debt shares in Millions, $ in Millions	6 Months Ended
	Sep. 30, 2017 USD ($) shares
2017 Junior Subordinated Convertible Debt
2017 Junior Notes Issued	$ 111.3
2007 Junior Subordinated Convertible Debt
Stock issued during period, shares, exchange of convertible securities | shares	3.2
2007 Junior Notes Exchanged	$ 111.3

X

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

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X

- Definition

The fair value of notes issued in noncash investing and financing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586

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- Definition

Number of shares issued during the period as a result of the conversion of convertible securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
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