Stock Based Compensation	9 Months Ended
Sep. 27, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock Based Compensation	7. Stock Based Compensation During the nine months ended September 27, 2019, the Company issued 430,412 restricted stock units at a weighted average grant-date fair value of $18.45 per share. As of September 27, 2019, the Company had 948,144 restricted stock units outstanding at a weighted average grant-date fair value of $17.44 per share. As of September 27, 2019, $10.5 million of total restricted stock unit compensation expense related to unvested awards had not been recognized and is expected to be recognized over a weighted average period of approximately 2.3 years. During the nine months ended September 27, 2019, 30,773 shares of common stock subject to vesting requirements were issued at a weighted average grant-date fair value of $15.57 per share. As of September 27, 2019, the Company had 96,639 shares of common stock subject to vesting requirements outstanding at a weighted average grant-date fair value of $19.46 per share. As of September 27, 2019, $1.8 million of compensation expense related to common stock subject to vesting requirements had not been recognized and is expected to be recognized over a weighted average period of approximately 1.6 years. Forfeitures for all of the Company’s outstanding equity are recognized as incurred.

Stock Based Compensation

9 Months Ended

Sep. 27, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

7. Stock Based Compensation

During the nine months ended September 27, 2019, the Company issued 430,412 restricted stock units at a weighted average grant-date fair value of $18.45 per share. As of September 27, 2019, the Company had 948,144 restricted stock units outstanding at a weighted average grant-date fair value of $17.44 per share. As of September 27, 2019, $10.5 million of total restricted stock unit compensation expense related to unvested awards had not been recognized and is expected to be recognized over a weighted average period of approximately 2.3 years.

During the nine months ended September 27, 2019, 30,773 shares of common stock subject to vesting requirements were issued at a weighted average grant-date fair value of $15.57 per share. As of September 27, 2019, the Company had 96,639 shares of common stock subject to vesting requirements outstanding at a weighted average grant-date fair value of $19.46 per share. As of September 27, 2019, $1.8 million of compensation expense related to common stock subject to vesting requirements had not been recognized and is expected to be recognized over a weighted average period of approximately 1.6 years.

Forfeitures for all of the Company’s outstanding equity are recognized as incurred.