Acquisitions Dispositions (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Sep. 30, 2014	Mar. 31, 2017
Dispositions [Abstract]
Proceeds from Sales of Business, Affiliate and Productive Assets	$ 47,000	$ 19,469

Aggregate cash proceeds received from a combination of transactions in which noncurrent assets are sold, which may include the sale of a business, an investment in an affiliate (including an equity method investee), property, plant and equipment and intangible assets. Excludes sales of trading, available-for-sale, and held-to-maturity securities.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration