Significant Accounting Policies (Recently Adopted Accounting Pronouncement) (Narrative) (Details) $ in Millions	12 Months Ended
Dec. 31, 2016 USD ($)
Segment Reporting [Abstract]
Reclassification of deferred debt issuance costs	$ 1.3

The amount of a reclassification adjustment made to prior period financial statement amounts.

No definition available.

Name:	us-gaap_PriorPeriodReclassificationAdjustment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration