Recent Accounting Pronouncements f (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Early adoption, reclassifications from other assets to long-term debt effect	$ 5.0

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

No definition available.

Name:	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant