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Stockholders' Equity and Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 28, 2019
Stockholders' Equity and Stock-Based Compensation [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity
A summary of all stock option activity as of December 28, 2019 and changes during the year ended is as follows:

        
 
Number of
shares
 
Weighted-avg.
exercise price
per share
 
Weighted-avg.
remaining
contractual life
Options outstanding at December 31, 2016
2,365,916

 
$
11.65

 
8.4 years
Granted
956,809

 
12.29

 
 
Exercised
(27,968
)
 
8.51

 
 
Forfeited
(4,000
)
 
13.55

 
 
Expired
—

 
—

 
 
Options outstanding at December 30, 2017
3,290,757

 
11.86

 
7.3 years
Granted
637,115

 
18.82

 
 
Exercised
(153,717
)
 
11.49

 
 
Forfeited
(19,953
)
 
9.99

 
 
Expired
—

 
—

 
 
Options outstanding at December 29, 2018
3,754,202

 
13.07

 
6.9 years
Granted
610,953

 
21.00

 
 
Exercised
(380,206
)
 
9.83

 
 
Forfeited
(6,464
)
 
18.11

 
 
Expired
—

 
—

 
 
Options outstanding at December 28, 2019
3,978,485

 
$
14.59

 
6.5 years
Options exercisable at December 28, 2019
2,685,252

 
$
12.70

 
5.6 years
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
The fair value of each stock option grant under the LTIPs was estimated on the date of grant using the Black Scholes option-pricing model with the following weighted average assumptions and results for fiscal 2019, 2018 and 2017.
        
Weighted Average
 
2019
2018
2017
Expected dividend yield
 
0.0%
0.0%
0.0%
Risk-free interest rate
 
2.61%
2.54%
2.00%
Expected term
 
6.00 years
5.82 years
5.82 years
Expected volatility
 
29.6%
29.3%
33.4%
Fair value of options granted
 
$7.16
$6.37
$4.34
Schedule of Nonvested Share Activity
A summary of the Company’s non-vested stock, restricted stock unit and performance share unit awards as of December 28, 2019, and changes during the year ended is as follows:
        
 
Non-Vested, RSU and PSU
Shares
 
Weighted Average
Grant Date
Fair Value
Stock awards outstanding December 31, 2016
981,261

 
$
15.56

Shares granted
104,750

 
12.27

Shares vested
(486,086
)
 
13.98

Shares forfeited
(239,581
)
 
20.90

Stock awards outstanding December 30, 2017
360,344

 
13.18

Shares granted
—

 
—

Shares vested
(228,991
)
 
13.11

Shares forfeited
(2,779
)
 
12.11

Stock awards outstanding December 29, 2018
128,574

 
13.32

Shares granted
—

 
—

Shares vested
(126,511
)
 
12.13

Shares forfeited
(1,313
)
 
14.92

Stock awards outstanding December 28, 2019
750

 
$
15.50
Schedule of Share-based Payment Award, Equity Instruments Other than Options, Valuation Assumptions
The fair value of each 2019 LTIP, 2018 LTIP and 2017 LTIP PSU award under the Company's 2019 LTIP, 2018 LTIP and 2017 LTIP was estimated on the date of grant using a Monte Carlo model with the following weighted average assumptions for fiscal 2019 , fiscal 2018 and fiscal 2017, except for the illiquidity discount, which only pertains to the 2017 LTIP PSU's with a holding period requirement.
        
        
Weighted Average
 
2019
2018
2017
Expected dividend yield
 
0.0%
0.0%
0.0%
Risk-free interest rate
 
2.58%
2.25%
1.40%
Expected term
 
2.93 years
2.93 years
2.89 years
Expected volatility
 
30.7%
34.4%
32.7%
Illiquidity discount
 
—%
—%
14.0%
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity
A summary of the Company’s non-employee director restricted stock awards as of December 28, 2019, and changes during the year ended is as follows:

        
 
Restricted stock and Restricted Stock Unit
Shares
 
Weighted Average
Grant Date
Fair Value
Stock awards outstanding December 31, 2016
111,359

 
$
14.18

Restricted shares granted
60,575

 
15.63

Restricted shares where the restriction lapsed
(14,915
)
 
12.42

Restricted shares forfeited
(2,210
)
 
14.51

Stock awards outstanding December 30, 2017
154,809

 
14.91

Restricted shares granted
61,806

 
16.92

Restricted shares where the restriction lapsed
(1,438
)
 
13.90

Restricted shares forfeited
—

 
—

Stock awards outstanding December 29, 2018
215,177

 
15.49

Restricted shares granted
52,990

 
20.76

Restricted shares where the restriction lapsed
(6,803
)
 
2.94

Restricted shares forfeited
—

 
—

Stock awards outstanding December 28, 2019
261,364

 
$
16.89
Share-based Payment Arrangement, Outstanding Award, Activity, Excluding Option [Table Text Block]
A summary of the Company’s 2019, 2018 and 2017 LTIP PSU awards as of December 28, 2019, and changes during the year ended is as follows:

        
 
LTIP PSU
Shares
 
Weighted Average
Grant Date
Fair Value
LTIP PSU awards outstanding December 31, 2016
664,120

 
$
7.17

Granted
559,388

 
11.14

Additional PSU awards vested from performance
—

 
—

Forfeited
(82,492
)
 
9.99

LTIP PSU awards outstanding December 30, 2017
1,141,016

 
$
8.91

Granted
295,514

 
20.60

Additional PSU awards vested from performance
88,151

 
6.95

Stock issued for PSUs
(26,212
)
 
6.95

Forfeited
(16,493
)
 
9.39

LTIP PSU awards outstanding December 29, 2018
1,481,976

 
$
11.15

Granted
305,195

 
21.50

Additional PSU awards vested from performance
235,126

 
7.23

Stock issued for PSUs
(125,067
)
 
7.84

Forfeited
(3,757
)
 
19.09

LTIP PSU awards outstanding December 28, 2019
1,893,473

 
$
12.54