Condensed Consolidated Balance Sheets (Parenthetical)	Jun. 30, 2014 USD ($)	Jun. 30, 2014 EUR (€)	Dec. 31, 2013 USD ($)	Dec. 31, 2013 EUR (€)
Statement of Financial Position [Abstract]
Euro deferred shares, nominal value (in euros per share)		€ 22		€ 22
Euro deferred shares, number of shares authorized	10,000	10,000	10,000	10,000
Euro deferred shares, number of issued shares	0	0	0	0
Euro deferred shares, number of outstanding shares	0	0	0	0
Ordinary shares, par value (in dollars per share)	$ 0.01		$ 0.01
Ordinary shares, number of authorized shares	100,000,000	100,000,000	100,000,000	100,000,000
Ordinary shares, number of issued shares	26,663,437	26,663,437	21,856,261	21,856,261
Ordinary shares, number of outstanding shares	26,663,437	26,663,437	21,856,261	21,856,261