Subsequent Event (Details) (Underwritten Public Offering [Member], USD $) In Millions, except Share data, unless otherwise specified		1 Months Ended
	Jun. 30, 2014	Jul. 31, 2014 Over-Allotment Option [Member] Subsequent Event	Jun. 30, 2014 Ordinary Shares
Subsequent Event [Line Items]
Share price (in dollars per share)	$ 22.50
Shares sold pursuant to underwritten public offering (in shares)		712,500	4,750,000
Proceeds from issuance of ordinary shares upon exercise of over-allotment option		$ 14.9
Underwriting discount		$ (1.1)