Subsequent Event	9 Months Ended
Sep. 30, 2019
Subsequent Events [Abstract]
Subsequent Event	17. Subsequent Event On October 18, 2019, the Company entered into an accelerated share repurchase (“ASR”) agreement with Morgan Stanley & Co. LLC (“Morgan Stanley”) to repurchase $185 million of the Company’s common stock. The ASR agreement was entered into under the current stock buyback program, under which the Company is authorized to repurchase up to 5.5 million shares of its common stock prior to December 31, 2020. Refer to Note 8 – Stockholders’ Equity for information about the stock buyback program. Pursuant to the ASR agreement, the Company made a $185 million payment to Morgan Stanley on October 21, 2019, and received from Morgan Stanley on the same day an initial delivery of approximately 3.6 million shares of the Company’s common stock, which represents approximately 75% of the estimated total number of shares to be repurchased under the ASR agreement based on the October 18, 2019 closing price of the Company’s common stock. The final number of shares to be repurchased will be based generally on the volume-weighted average price per share of the Company’s common stock during the term of the ASR agreement, less a discount, and subject to possible adjustments in accordance with the terms of the ASR agreement. Final settlement of the ASR agreement is scheduled to occur no later than the third quarter of 2020.

Subsequent Event

9 Months Ended

Sep. 30, 2019

17. Subsequent Event

On October 18, 2019, the Company entered into an accelerated share repurchase (“ASR”) agreement with Morgan Stanley & Co. LLC (“Morgan Stanley”) to repurchase $185 million of the Company’s common stock. The ASR agreement was entered into under the current stock buyback program, under which the Company is authorized to repurchase up to 5.5 million shares of its common stock prior to December 31, 2020. Refer to Note 8 – Stockholders’ Equity for information about the stock buyback program.

Pursuant to the ASR agreement, the Company made a $185 million payment to Morgan Stanley on October 21, 2019, and received from Morgan Stanley on the same day an initial delivery of approximately 3.6 million shares of the Company’s common stock, which represents approximately 75% of the estimated total number of shares to be repurchased under the ASR agreement based on the October 18, 2019 closing price of the Company’s common stock. The final number of shares to be repurchased will be based generally on the volume-weighted average price per share of the Company’s common stock during the term of the ASR agreement, less a discount, and subject to possible adjustments in accordance with the terms of the ASR agreement. Final settlement of the ASR agreement is scheduled to occur no later than the third quarter of 2020.