Shareholders' Equity	12 Months Ended
Dec. 29, 2017
Stockholders Equity Note [Abstract]
Shareholders' Equity	11. Shareholders’ Equity Employee Stock Purchase Plan Effective July 1, 1998, the Company adopted an Employee Stock Purchase Plan to provide substantially all employees who have completed three months of service as of the beginning of an offering period an opportunity to purchase shares of its common stock through payroll deductions. Purchases on any one grant are limited to 10% of eligible compensation. Shares of the Company’s common stock may be purchased by employees at six -month intervals at 95% of the fair market value on the last trading day of each six-month period. The aggregate fair market value, determined as of the first trading date of the offering period, of shares purchased by an employee may not exceed $25,000 annually. In 2017, subject to shareholder approval, the Company’s Board of Directors agreed to extend the Employee Stock Purchase Plan to July 1, 2023 from July 1, 2018 and added an additional 250,000 shares of common stock which increased the total available shares of common stock to 279,606. As of 2017, a total of 211,845 shares of common stock were available for purchase under the plan. For plan years 2017, 2016 and 2015 67,761 shares, 67,111 shares and 48,356 shares, respectively, were issued for total proceeds of $1.0 million, $1.0 million, and $0.7 million, respectively. Treasury Stock On July 30, 2002, the Company announced that its Board of Directors approved the repurchase of up to $5.0 million of the Company’s common stock. Since the inception of the repurchase plan, the Board of Directors approved the repurchase of an additional $132.2 million of the Company’s common stock, thereby increasing the total program size to $137.2 million as of December 29, 2017. As of December 29, 2017, the Company had effected cumulative purchases under the plan of $134.1 million, leaving $3.1 million available for future purchases. There is no expiration of the authorization. Under the repurchase plan, the Company may buy back shares of its outstanding stock from time to time either on the open market or through privately negotiated transactions, subject to market conditions and trading restrictions, excluding the above mentioned tender offers. During 2017 and 2016, the Company repurchased 748 thousand and 2.1 million shares of its common stock, respectively, at an average price per share of $15.11 and $14.60, respectively, for a total cost of $11.3 million and $30.1 million, respectively. As of December 29, 2017 and December 30, 2016, the Company had repurchased 26.9 million and 26.2 million shares of its common stock, respectively, at an average price of $4.97 and $4.69 per share, respectively. Subsequent to year end, the Company repurchased 53 thousand shares of the Company’s stock from members of its Board of Directors and Executive team for a total cost of $1.0 million, or $18.33 per share. The proceeds from the sale of these shares will be used in part to cover estimated tax liabilities associated with previously vested restricted stock units. This leaves $2.2 million available under the repurchase plan for future purchases. The Company holds repurchased shares of its common stock as treasury stock and accounts for treasury stock under the cost method. On May 6, 2016, the Company’s Board of Directors approved the repurchase of 697 thousand shares of its common stock from the Company’s CEO, 732 thousand shares of its common stock from the Company’s COO, and 73 thousand shares of its common stock from the Company’s CFO for a total of approximately 1.5 million shares at a purchase price of $14.77 per share. The transaction was approved by the Audit Committee of the Board of Directors which is comprised solely of independent directors and was effected as part of the Company’s share repurchase program. Following the transaction, Mr. Fernandez, Mr. Dungan and Mr. Ramirez remained the beneficial owners of 11.8%, 4.9% and 0.9% shares, respectively, of the outstanding common stock. One of the primary reasons for this transaction was to lower the Company’s weighted average shares outstanding which had increased by 11% from the first quarter of 2015 as a result of the vesting of the SARs and appreciation in share price. The repurchase reduced weighted average shares outstanding by approximately 4% and is $0.03 to $0.04 accretive on an annualized basis. Based on the most recent SEC filings, including shares of Company common stock beneficially owned and shares that could be acquired upon the exercise of the SARs, Mr. Fernandez continues to be the largest beneficial shareholder of the Company. Shares purchased under the repurchase plan do not include shares withheld to satisfy withholding tax obligations. These withheld shares are never issued and in lieu of issuing the shares, taxes were paid on the employee’s behalf. In 2017 and 2016, 268 thousand shares were withheld and not issued for a cost of $4.4 million and 294 thousand shares were withheld and not issued for a cost of $4.0 million, respectively, which are included under issuance of common stock in the accompanying consolidated statements of shareholders’ equity. Subsequent to December 29, 2017, 177 thousand shares have been withheld for a total cost of $ 3.1 million. 11. Shareholders’ Equity (continued) Dividends In December 2012, the Company announced an annual dividend program of $0.10 per share. In December 2012 and 2013, the Company paid annual dividends of $0.10 per share, or $3.1 million to shareholders of record as of close of business on December 20, 2012 and on December 10, 2013, respectively. In 2014, the Company increased the dividend to $0.12 per share, or $3.5 million, to shareholders of record as of close of business on December 10, 2014. In 2015, the Company increased the annual dividend to $0.20 per share to be paid on a semi-annual basis which resulted in aggregate dividends of $3.1 million and $3.2 million paid to shareholders of record on June 29, 2015 and December 28, 2015, respectively. In 2016, the Company increased the annual dividend to $0.26 per share to be paid on a semi-annual basis which resulted in aggregate dividends of $4.0 million and $4.0 million paid to shareholders of record on June 30, 2016 and December 22, 2016, respectively. In 2017, the Company increased the annual dividend to $0.30 per share to be paid on a semi-annual basis which resulted in aggregate dividends of $4.6 million and $4.7 million paid to shareholders of record on June 30, 2017 and December 22, 2017, respectively. These dividends were paid from U.S. domestic sources and are accounted for as an increase to retained deficit. The dividend declared in December 2017 was paid in January 2018. Subsequent to December 29, 2017, the Company increased its annual dividend to $0.34 per share to be paid on a semi-annual basis.

11. Shareholders’ Equity

Employee Stock Purchase Plan

Effective July 1, 1998, the Company adopted an Employee Stock Purchase Plan to provide substantially all employees who have completed three months of service as of the beginning of an offering period an opportunity to purchase shares of its common stock through payroll deductions. Purchases on any one grant are limited to 10% of eligible compensation. Shares of the Company’s common stock may be purchased by employees at six -month intervals at 95% of the fair market value on the last trading day of each six-month period. The aggregate fair market value, determined as of the first trading date of the offering period, of shares purchased by an employee may not exceed $25,000 annually. In 2017, subject to shareholder approval, the Company’s Board of Directors agreed to extend the Employee Stock Purchase Plan to July 1, 2023 from July 1, 2018 and added an additional 250,000 shares of common stock which increased the total available shares of common stock to 279,606. As of 2017, a total of 211,845 shares of common stock were available for purchase under the plan. For plan years 2017, 2016 and 2015 67,761 shares, 67,111 shares and 48,356 shares, respectively, were issued for total proceeds of $1.0 million, $1.0 million, and $0.7 million, respectively.

Treasury Stock

On July 30, 2002, the Company announced that its Board of Directors approved the repurchase of up to $5.0 million of the Company’s common stock. Since the inception of the repurchase plan, the Board of Directors approved the repurchase of an additional $132.2 million of the Company’s common stock, thereby increasing the total program size to $137.2 million as of December 29, 2017. As of December 29, 2017, the Company had effected cumulative purchases under the plan of $134.1 million, leaving $3.1 million available for future purchases. There is no expiration of the authorization. Under the repurchase plan, the Company may buy back shares of its outstanding stock from time to time either on the open market or through privately negotiated transactions, subject to market conditions and trading restrictions, excluding the above mentioned tender offers. During 2017 and 2016, the Company repurchased 748 thousand and 2.1 million shares of its common stock, respectively, at an average price per share of $15.11 and $14.60, respectively, for a total cost of $11.3 million and $30.1 million, respectively. As of December 29, 2017 and December 30, 2016, the Company had repurchased 26.9 million and 26.2 million shares of its common stock, respectively, at an average price of $4.97 and $4.69 per share, respectively. Subsequent to year end, the Company repurchased 53 thousand shares of the Company’s stock from members of its Board of Directors and Executive team for a total cost of $1.0 million, or $18.33 per share. The proceeds from the sale of these shares will be used in part to cover estimated tax liabilities associated with previously vested restricted stock units. This leaves $2.2 million available under the repurchase plan for future purchases.

The Company holds repurchased shares of its common stock as treasury stock and accounts for treasury stock under the cost method.

On May 6, 2016, the Company’s Board of Directors approved the repurchase of 697 thousand shares of its common stock from the Company’s CEO, 732 thousand shares of its common stock from the Company’s COO, and 73 thousand shares of its common stock from the Company’s CFO for a total of approximately 1.5 million shares at a purchase price of $14.77 per share. The transaction was approved by the Audit Committee of the Board of Directors which is comprised solely of independent directors and was effected as part of the Company’s share repurchase program. Following the transaction, Mr. Fernandez, Mr. Dungan and Mr. Ramirez remained the beneficial owners of 11.8%, 4.9% and 0.9% shares, respectively, of the outstanding common stock. One of the primary reasons for this transaction was to lower the Company’s weighted average shares outstanding which had increased by 11% from the first quarter of 2015 as a result of the vesting of the SARs and appreciation in share price. The repurchase reduced weighted average shares outstanding by approximately 4% and is $0.03 to $0.04 accretive on an annualized basis. Based on the most recent SEC filings, including shares of Company common stock beneficially owned and shares that could be acquired upon the exercise of the SARs, Mr. Fernandez continues to be the largest beneficial shareholder of the Company.

Shares purchased under the repurchase plan do not include shares withheld to satisfy withholding tax obligations. These withheld shares are never issued and in lieu of issuing the shares, taxes were paid on the employee’s behalf. In 2017 and 2016, 268 thousand shares were withheld and not issued for a cost of $4.4 million and 294 thousand shares were withheld and not issued for a cost of $4.0 million, respectively, which are included under issuance of common stock in the accompanying consolidated statements of shareholders’ equity. Subsequent to December 29, 2017, 177 thousand shares have been withheld for a total cost of $ 3.1 million.

11. Shareholders’ Equity (continued)

Dividends

In December 2012, the Company announced an annual dividend program of $0.10 per share. In December 2012 and 2013, the Company paid annual dividends of $0.10 per share, or $3.1 million to shareholders of record as of close of business on December 20, 2012 and on December 10, 2013, respectively. In 2014, the Company increased the dividend to $0.12 per share, or $3.5 million, to shareholders of record as of close of business on December 10, 2014. In 2015, the Company increased the annual dividend to $0.20 per share to be paid on a semi-annual basis which resulted in aggregate dividends of $3.1 million and $3.2 million paid to shareholders of record on June 29, 2015 and December 28, 2015, respectively. In 2016, the Company increased the annual dividend to $0.26 per share to be paid on a semi-annual basis which resulted in aggregate dividends of $4.0 million and $4.0 million paid to shareholders of record on June 30, 2016 and December 22, 2016, respectively. In 2017, the Company increased the annual dividend to $0.30 per share to be paid on a semi-annual basis which resulted in aggregate dividends of $4.6 million and $4.7 million paid to shareholders of record on June 30, 2017 and December 22, 2017, respectively. These dividends were paid from U.S. domestic sources and are accounted for as an increase to retained deficit. The dividend declared in December 2017 was paid in January 2018. Subsequent to December 29, 2017, the Company increased its annual dividend to $0.34 per share to be paid on a semi-annual basis.