Indemnification Obligations (Narrative) (Details) (Indemnification Agreement [Member], USD $)	3 Months Ended	12 Months Ended
Mar. 31, 2015	Dec. 31, 2014
Indemnification Agreement [Member]
Loss Contingencies [Line Items]
Loss contingency accrued	$ 0	$ 0

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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