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Earnings per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Net income attributable to the owners of QIAGEN N.V. $ 80,404 $ 130,148 $ 116,365
Weighted average number of common shares used to compute basic net income per common share (in shares) 234,800 233,483 232,644
Dilutive effect of stock options and restrictive stock units (in shares) 4,193 5,028 4,841
Dilutive effect of outstanding warrant (in shares) 0 136 5,321
Weighted average number of common shares used to compute diluted net income per common share (in shares) 238,993 238,647 242,806
Basic earnings per common share attributable to the owners of QIAGEN N.V. (USD per share) $ 0.34 $ 0.56 $ 0.50
Diluted earnings per common share attributable to the owners of QIAGEN N.V. (USD per share) $ 0.34 $ 0.55 $ 0.48
Stock options and awards      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities having no dilutive effect, not included in above calculation (in shares) 210 37 422
Warrants      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities having no dilutive effect, not included in above calculation (in shares) 25,800 26,071 32,505