Commitments And Contingencies (Nuclear Insurance) (Details) - Diablo Canyon [Member] $ in Thousands	3 Months Ended
Mar. 31, 2016 USD ($)
Long-term Purchase Commitment [Line Items]
Maximum Aggregate Annual Retrospective Premium Obligation	$ 60,000
EMANI Policy Limit	200,000
EMANI Possible Retrospective Assesment	$ 2,100

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_LongTermPurchaseCommitmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration