Commitments and Contingencies, Other Commitments (Details) - Limited Partnership Investment [Member] - USD ($) $ in Millions	1 Months Ended	12 Months Ended
Oct. 31, 2015	Dec. 31, 2015
Other Commitments [Line Items]
Length Of Commitment	5 years
Other Commitment, Capital Contribution In Current Year		$ 0.6
Maximum
Other Commitments [Line Items]
Other Commitment	$ 50.0

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

No definition available.

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