Fair Value Measurements (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Jun. 30, 2014
Company's assets measured at fair value using significant unobservable inputs (Level 3)
Balance as of April 1, 2014	$ 14,913
Fair value adjustments	604
Balance as of June 30, 2014	$ 15,517

Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration