Inogen, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Convertible Preferred Stock - Additional Information (Details)

Convertible Preferred Stock - Additional Information (Details) (USD $)	0 Months Ended	12 Months Ended			0 Months Ended
	Feb. 20, 2014	Dec. 31, 2014 Vote	Dec. 31, 2013	Dec. 31, 2012	Feb. 20, 2014	Mar. 12, 2012
Temporary Equity [Line Items]
Number of voting rights per share of common stock		1
Preferred stock, shares authorized		10,000,000us-gaap_PreferredStockSharesAuthorized	100,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued		0us-gaap_PreferredStockSharesIssued	66,666us-gaap_PreferredStockSharesIssued
Preferred stock, shares outstanding		0us-gaap_PreferredStockSharesOutstanding	66,666us-gaap_PreferredStockSharesOutstanding
Dividends declared			$ 0us-gaap_DividendsPreferredStockCash	$ 0us-gaap_DividendsPreferredStockCash
Convertible preferred stock, description		Prior to our IPO, each share of preferred stock was automatically convertible into common stock, at the then applicable conversion rate, upon (i) the election of both the holders of a majority of the then-outstanding Series F preferred stock and Series G preferred stock, voting together as a single class provided, or (ii) the closing of an underwritten initial public offering of the Company’s common stock pursuant to a registration statement under the Securities Act of 1933, as amended with aggregate proceeds of at least $40 million at an offering price of at least $17.85 per share (as adjusted for stock splits, stock dividends, recapitalizations, etc.). If the Series G preferred shares were converted to common stock in connection with an initial public offering in which shares are sold to the public at a price that was less than $14.0832 per share (as adjusted for stock splits, stock dividends, recapitalizations, etc.), then immediately prior to such conversion, the applicable conversion rate of the Series G preferred stock was to be increased to the extent necessary to make the Series G preferred holders whole as if the initial public offering price to the public had been equal to $14.0832 (as adjusted for stock splits, stock dividends, recapitalizations, etc.).
Conversion of preferred stock, shares	14,259,647
Percentage of convertible preferred stock		Prior to our IPO, the holders of at least 66 2/3% of preferred stock on an as converted to common stock basis were required to approve certain specified actions as outlined in the Company’s prior Certificate of Incorporation. In addition, the holders of at least 60% of the Series D preferred stock were required to approve certain specified actions as outlined in the Company’s prior Certificate of Incorporation. In addition, the Company could not amend its prior Certificate of Incorporation without the approval of at least 66 2/3% of any series of preferred stock if such amendment would change any of the rights, preferences or privileges of such series.
Common stock
Temporary Equity [Line Items]
Proceeds from initial public offering triggering conversion		40,000,000
Share price		17.85
Conversion of preferred stock, shares					14,259,647
Issuance of common stock in connection with initial public offering, shares		3,529,411
Percentage of voting rights required to approve certain action		66.67%
Preferred Stock
Temporary Equity [Line Items]
Percentage of voting rights required to approve certain action		60.00%
Redeemable convertible preferred stock
Temporary Equity [Line Items]
Preferred stock, shares outstanding		0	9,541,631
Series G Redeemable Convertible Preferred Stock
Temporary Equity [Line Items]
Dividend rate			8.00%
Preferred stock, dividend preference		Prior to our IPO, Series G preferred stockholders were entitled to receive dividends prior and in preference to any declaration or payment of any dividend on all existing series of preferred stock and common stock at the rate of 8% of its original issue price.
Issuance of common stock in connection with initial public offering, shares						2,840,260
Preferred stock value issued						$ 20,000,000
Shares issued, price per share						$ 7.0416
Percentage of voting rights required to approve certain action		66.67%
Series G Redeemable Convertible Preferred Stock \| Maximum
Temporary Equity [Line Items]
Temporary equity, conversion price per share		14.0832
Series F Redeemable Convertible Preferred Stock
Temporary Equity [Line Items]
Dividend rate			8.00%
Preferred stock, dividend preference		Prior to our IPO, subject to the prior rights of the holders of Series G preferred stock, Series F preferred stockholders were entitled to receive dividends prior and in preference to any declaration or payment of any dividend on all existing series of preferred stock and common stock at the rate of 8% of its original issue price.
Temporary equity, conversion price per share		3.570
Series E Redeemable Convertible Preferred Stock
Temporary Equity [Line Items]
Dividend rate			8.00%
Preferred stock, dividend preference		Prior to our IPO, subject to the prior rights of the holders of Series G and F preferred stock, the Series E preferred stockholders were entitled to receive dividends prior and in preference to any declaration or payment of any dividend on Series A, B, C, and D preferred stock and common stock at the rate of 8% of its original issue price.
Temporary equity, conversion price per share		3.570
Series D Redeemable Convertible Preferred Stock
Temporary Equity [Line Items]
Dividend rate			8.00%
Preferred stock, dividend preference		Prior to our IPO, subject to the prior rights of the holders of Series G, F, and E preferred stock, the Series D preferred stockholders were entitled to receive dividends prior and in preference to any declaration or payment of any dividend on Series A, B and C preferred stock and common stock at the rate of 8% of its original issue price
Temporary equity, conversion price per share		12.651
Series D Redeemable Convertible Preferred Stock \| Scenario, Adjustment
Temporary Equity [Line Items]
Temporary equity, conversion price per share		11.652
Series C Redeemable Convertible Preferred Stock
Temporary Equity [Line Items]
Dividend rate			8.00%
Preferred stock, dividend preference		Prior to our IPO, subject to the prior rights of the holders of Series G, F, E and D preferred stocks, the Series C preferred stockholders were entitled to receive dividends prior and in preference to any declaration or payment of any dividend on Series A and B preferred stock and common stock at the rate of 8% of its original issue price
Temporary equity, conversion price per share		10.836
Series C Redeemable Convertible Preferred Stock \| Scenario, Adjustment
Temporary Equity [Line Items]
Temporary equity, conversion price per share		10.161
Series B Redeemable Convertible Preferred Stock
Temporary Equity [Line Items]
Dividend rate			5.00%
Preferred stock, dividend preference		Prior to our IPO, subject to the prior rights of the holders of Series G, F, E, D and C preferred stocks, the Series A and B preferred stockholders were entitled to receive dividends prior and in preference to any declaration or payment of any dividend on common stock at the rate of 5% of its original issue price
Temporary equity, conversion price per share		8.436
Series B Redeemable Convertible Preferred Stock \| Scenario, Adjustment
Temporary Equity [Line Items]
Temporary equity, conversion price per share		8.187
Series A Nonredeemable Convertible Preferred Stock
Temporary Equity [Line Items]
Preferred stock, shares authorized			100,000
Preferred stock, shares issued			66,666
Dividend rate			5.00%
Preferred stock, dividend preference		Prior to our IPO, subject to the prior rights of the holders of Series G, F, E, D and C preferred stocks, the Series A and B preferred stockholders were entitled to receive dividends prior and in preference to any declaration or payment of any dividend on common stock at the rate of 5% of its original issue price
Temporary equity, conversion price per share		3.687