Consolidated Balance Sheets (Parenthetical) |
Dec. 31, 2020
€ / shares
shares
|
Dec. 31, 2020
$ / shares
shares
|
Dec. 31, 2019
€ / shares
shares
|
Dec. 31, 2019
$ / shares
shares
|
---|---|---|---|---|
Statement of Financial Position [Abstract] | ||||
Euro deferred shares, nominal value (in euros per share) | € / shares | € 22 | € 22 | ||
Euro deferred shares, number of shares authorized (in shares) | 10,000 | 10,000 | 10,000 | 10,000 |
Euro deferred shares, number of issued shares (in shares) | 0 | 0 | 0 | 0 |
Euro deferred shares, number of outstanding shares (in shares) | 0 | 0 | 0 | 0 |
Ordinary shares, par value (in dollars per share) | $ / shares | $ 0.01 | $ 0.01 | ||
Ordinary shares, number of authorized shares (in shares) | 100,000,000 | 100,000,000 | 100,000,000 | 100,000,000 |
Ordinary shares, number of issued shares (in shares) | 39,921,413 | 39,921,413 | 39,898,561 | 39,898,561 |
Ordinary shares, number of outstanding shares (in shares) | 39,921,413 | 39,921,413 | 39,898,561 | 39,898,561 |