Subsequent Events	9 Months Ended
Sep. 30, 2019
Subsequent Events [Abstract]
Subsequent Events	14. Subsequent Events On October 14, 2019, Progyny’s stockholders approved and the Company effected a one-for-4.5454 reverse stock split of its common and convertible preferred stock. The par value of the common stock and redeemable convertible preferred stock was not adjusted as a result of the reverse stock split. Accordingly, these condensed consolidated financial statements and notes retroactively reflect Progyny’s capital structure after giving effect to the reverse stock split. On October 29, 2019, the Company completed its initial public offering (“IPO”) in which it issued and sold 6,700,000 shares of its common stock at a public offering price of $13.00 per share. As part of the IPO, certain selling stockholders offered and sold an additional 4,800,000 shares (including 1,500,000 shares offered and sold pursuant to the exercise of the underwriters’ over-allotment option), at an equivalent public offering price of $13.00 per share. The Company received net proceeds of approximately $77.7 million from the IPO, after deducting underwriters’ discounts and commissions of $5.9 million and offering costs of $3.5 million. Offering costs are capitalized and consist of fees and expenses incurred in connection with the sale of our common stock in the IPO, including the legal, accounting, printing and other IPO-related costs. Upon completion of the IPO, these deferred offering costs were reclassified to stockholders’ equity and recorded against the proceeds from the offering. Immediately prior to the completion of the IPO, all shares of Series A and B convertible preferred stock then outstanding were converted into 65,428,088 shares of common stock on a one-to-one basis and the Company reclassified $106.2 million of convertible preferred stock to additional paid-in-capital and $7,000 of convertible preferred stock to common stock on the Company’s balance sheet. Immediately prior to the IPO, options representing 1,311,944 shares of common stock were exercised at an average exercise price of $0.94. In addition, 482,661 warrants were exercised for 441,307 shares of common stock at a weighted average exercise price of $1.59. In October 2019, the Company’s Board of Directors and stockholders adopted and approved the 2019 Equity Incentive Plan, (the “2019 Plan”), as the successor to continuation of the Company’s 2017 Stock Plan. No further grants will be made under the 2017 Plan from the date that the 2019 Plan became effective. Initially, the maximum number of shares issuable under the 2019 Plan will not exceed 19,198,875 shares of common stock, which is the sum of 1) 2,640,031 new shares and 2) an additional number of shares not to exceed 16,558,844 consisting of (a) shares that remain available for the issuance of awards under the 2017 Stock Plan immediately prior to the effective date of the 2019 Plan and (b) shares of our common stock subject to outstanding stock options or other stock awards granted under our 2017 Plan that, on or after the date the 2019 Plan became effective, terminate, expire or are cancelled prior to exercise or settlement; are forfeited or repurchased because of the failure to vest; or are reacquired or withheld (or not issued) to satisfy a tax withholding obligation or the purchase or exercise price, if any, as such shares become available from time to time. In October 2019, the Board of Directors and stockholders also adopted and approved the 2019 Employee Stock Purchase Plan (the “ESPP”). Following the IPO, the ESPP authorized the issuance of 1,700,000 shares of common stock to purchase rights granted to our employees or to employees of our designated affiliates.

14. Subsequent Events

On October 14, 2019, Progyny’s stockholders approved and the Company effected a one-for-4.5454 reverse stock split of its common and convertible preferred stock. The par value of the common stock and redeemable convertible preferred stock was not adjusted as a result of the reverse stock split. Accordingly, these condensed consolidated financial statements and notes retroactively reflect Progyny’s capital structure after giving effect to the reverse stock split.

On October 29, 2019, the Company completed its initial public offering (“IPO”) in which it issued and sold 6,700,000 shares of its common stock at a public offering price of $13.00 per share. As part of the IPO, certain selling stockholders offered and sold an additional 4,800,000 shares (including 1,500,000 shares offered and sold pursuant to the exercise of the underwriters’ over-allotment option), at an equivalent public offering price of $13.00 per share. The Company received net proceeds of approximately $77.7 million from the IPO, after deducting underwriters’ discounts and commissions of $5.9 million and offering costs of $3.5 million. Offering costs are capitalized and consist of fees and expenses incurred in connection with the sale of our common stock in the IPO, including the legal, accounting, printing and other IPO-related costs. Upon completion of the IPO, these deferred offering costs were reclassified to stockholders’ equity and recorded against the proceeds from the offering. Immediately prior to the completion of the IPO, all shares of Series A and B convertible preferred stock then outstanding were converted into 65,428,088 shares of common stock on a one-to-one basis and the Company reclassified $106.2 million of convertible preferred stock to additional paid-in-capital and $7,000 of convertible preferred stock to common stock on the Company’s balance sheet.

Immediately prior to the IPO, options representing 1,311,944 shares of common stock were exercised at an average exercise price of $0.94. In addition, 482,661 warrants were exercised for 441,307 shares of common stock at a weighted average exercise price of $1.59.

In October 2019, the Company’s Board of Directors and stockholders adopted and approved the 2019 Equity Incentive Plan, (the “2019 Plan”), as the successor to continuation of the Company’s 2017 Stock Plan. No further grants will be made under the 2017 Plan from the date that the 2019 Plan became effective. Initially, the maximum number of shares issuable under the 2019 Plan will not exceed 19,198,875 shares of common stock, which is the sum of 1) 2,640,031 new shares and 2) an additional number of shares not to exceed 16,558,844 consisting of (a) shares that remain available for the issuance of awards under the 2017 Stock Plan immediately prior to the effective date of the 2019 Plan and (b) shares of our common stock subject to outstanding stock options or other stock awards granted under our 2017 Plan that, on or after the date the 2019 Plan became effective, terminate, expire or are cancelled prior to exercise or settlement; are forfeited or repurchased because of the failure to vest; or are reacquired or withheld (or not issued) to satisfy a tax withholding obligation or the purchase or exercise price, if any, as such shares become available from time to time.

In October 2019, the Board of Directors and stockholders also adopted and approved the 2019 Employee Stock Purchase Plan (the “ESPP”). Following the IPO, the ESPP authorized the issuance of 1,700,000 shares of common stock to purchase rights granted to our employees or to employees of our designated affiliates.