Subsequent Event	9 Months Ended
Sep. 30, 2017
Subsequent Event [Abstract]
Subsequent Event	11. Subsequent Event On October 29, 2017, the Company, Sarg Sub Inc., a Minnesota corporation and a direct, wholly owned subsidiary of the Company (“Merger Sub”), and Capella Education Company, a Minnesota corporation (“Capella”), entered into an Agreement and Plan of Merger (the “Merger Agreement”). Pursuant to the Merger Agreement, and subject to the satisfaction or waiver of the conditions specified therein, Merger Sub will be merged with and into Capella (the “Merger”), with Capella surviving as a direct, wholly owned subsidiary of the Company. At the effective time of the Merger (the “Effective Time”), each share of common stock of Capella (“Capella Common Stock”) issued and outstanding immediately prior to the Effective Time (other than the shares that are owned by Capella, the Company, Merger Sub or any wholly owned subsidiary of Capella, the Company or Merger Sub) will be converted into the right to receive 0.875 of a newly issued share of common stock of the Company (the “Company Common Stock”) (“Merger Consideration”). No fractional shares of Company Common Stock will be issued in the Merger, and Capella shareholders will receive cash in lieu of fractional shares as part of the Merger Consideration, as specified in the Merger Agreement. The respective boards of directors of the Company and Capella have unanimously approved the Merger Agreement, and the board of directors of Capella has agreed to recommend that Capella’s shareholders adopt the Merger Agreement. In addition, the board of directors of the Company has agreed to recommend that the Company’s stockholders approve the issuance of shares of Company Common Stock in the Merger and the amendment to the Company certificate of incorporation to, among other things (i) change the Company’s name to “Strategic Education, Inc.” and (ii) increase the number of shares of Company Common Stock that the Company is authorized to issue to 32,000,000 shares to, among other things, allow for the payment of the Merger Consideration. The consummation of the Merger is subject to customary closing conditions, including, but not limited to, (i) the approval of Company stockholders and Capella stockholders, (ii) the expiration or termination of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, and (iii) the receipt of certain regulatory approvals from educational agencies (including the Department of Education and Capella University’s accreditor). The parties expect the Merger will be completed in the third quarter of 2018. The Merger Agreement provides for certain termination rights for both Capella and the Company. Upon termination of the Merger Agreement under certain specified circumstances (including to accept a superior proposal), the Company may be required to pay Capella a termination fee of $25,000,000, and upon termination of the Merger Agreement under certain specified circumstances (including to accept a superior proposal), Capella may be required to pay the Company a termination fee of $25,000,000. In addition, if the Merger Agreement is terminated by either party as a result of Capella’s failure to obtain stockholder approval, or is terminated by the Company due to Capella’s breach of its representations and covenants and such breach would result in the closing conditions not being satisfied, then Capella may be required to reimburse transaction expenses up to $8,000,000. The Company may be required to reimburse transaction expenses up to $8,000,000 in reciprocal circumstances.

11. Subsequent Event

On October 29, 2017, the Company, Sarg Sub Inc., a Minnesota corporation and a direct, wholly owned subsidiary of the Company (“Merger Sub”), and Capella Education Company, a Minnesota corporation (“Capella”), entered into an Agreement and Plan of Merger (the “Merger Agreement”). Pursuant to the Merger Agreement, and subject to the satisfaction or waiver of the conditions specified therein, Merger Sub will be merged with and into Capella (the “Merger”), with Capella surviving as a direct, wholly owned subsidiary of the Company.

At the effective time of the Merger (the “Effective Time”), each share of common stock of Capella (“Capella Common Stock”) issued and outstanding immediately prior to the Effective Time (other than the shares that are owned by Capella, the Company, Merger Sub or any wholly owned subsidiary of Capella, the Company or Merger Sub) will be converted into the right to receive 0.875 of a newly issued share of common stock of the Company (the “Company Common Stock”) (“Merger Consideration”). No fractional shares of Company Common Stock will be issued in the Merger, and Capella shareholders will receive cash in lieu of fractional shares as part of the Merger Consideration, as specified in the Merger Agreement.

The respective boards of directors of the Company and Capella have unanimously approved the Merger Agreement, and the board of directors of Capella has agreed to recommend that Capella’s shareholders adopt the Merger Agreement. In addition, the board of directors of the Company has agreed to recommend that the Company’s stockholders approve the issuance of shares of Company Common Stock in the Merger and the amendment to the Company certificate of incorporation to, among other things (i) change the Company’s name to “Strategic Education, Inc.” and (ii) increase the number of shares of Company Common Stock that the Company is authorized to issue to 32,000,000 shares to, among other things, allow for the payment of the Merger Consideration.

The consummation of the Merger is subject to customary closing conditions, including, but not limited to, (i) the approval of Company stockholders and Capella stockholders, (ii) the expiration or termination of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, and (iii) the receipt of certain regulatory approvals from educational agencies (including the Department of Education and Capella University’s accreditor). The parties expect the Merger will be completed in the third quarter of 2018.

The Merger Agreement provides for certain termination rights for both Capella and the Company. Upon termination of the Merger Agreement under certain specified circumstances (including to accept a superior proposal), the Company may be required to pay Capella a termination fee of $25,000,000, and upon termination of the Merger Agreement under certain specified circumstances (including to accept a superior proposal), Capella may be required to pay the Company a termination fee of $25,000,000. In addition, if the Merger Agreement is terminated by either party as a result of Capella’s failure to obtain stockholder approval, or is terminated by the Company due to Capella’s breach of its representations and covenants and such breach would result in the closing conditions not being satisfied, then Capella may be required to reimburse transaction expenses up to $8,000,000. The Company may be required to reimburse transaction expenses up to $8,000,000 in reciprocal circumstances.