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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Per share or per unit amount of equity securities issued.

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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Related-Party Transactions - Additional Information (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2016	Dec. 31, 2015	Nov. 17, 2016
Related Party Transaction [Line Items]
Common stock, shares issued		7,939,967	6,845,638
Common stock value		$ 7,938	$ 6,844
Revenue recognized		$ 5,132,730	$ 4,041,575
QIAGEN Manchester Limited
Related Party Transaction [Line Items]
Agreement commencement period		2016-11
Term of agreement		5 years
Termination payment		$ 2,000,000
QIAGEN North American Holdings Incorporation
Related Party Transaction [Line Items]
Common stock, shares issued				833,333
Common stock value				$ 2,000,000
Deferred revenue		$ 175,000
Deferred revenue recognition period		5 years
Revenue recognized		$ 4,375
QIAGEN North American Holdings Incorporation \| Share-based Compensation Award, Tranche Two
Related Party Transaction [Line Items]
Common stock value		2,000,000
QIAGEN North American Holdings Incorporation \| Common Stock
Related Party Transaction [Line Items]
Shares issued price per share				$ 2.40
Minimum \| QIAGEN North American Holdings Incorporation
Related Party Transaction [Line Items]
Sale of stock in a financing transaction		$ 12,000,000
Merck Capital Ventures, LLC
Related Party Transaction [Line Items]
Beneficial ownership		9.90%	11.10%
Merck Sharp And Dohme Corporation
Related Party Transaction [Line Items]
Non-exclusive license agreement, milestone accrued or paid	$ 0
Merck Sharp And Dohme Corporation \| Minimum
Related Party Transaction [Line Items]
Non-exclusive license agreement, contingent milestone payments	$ 50,000
Non-exclusive license agreement, future royalties	3.00%
Merck Sharp And Dohme Corporation \| Maximum
Related Party Transaction [Line Items]
Non-exclusive license agreement, contingent milestone payments	$ 1,000,000
Non-exclusive license agreement, future royalties	6.00%