Employee Stock Based Compensation - Summary of Information about Employee Stock Options Outstanding (Detail) - USD ($)
$ / shares in Units, $ in Thousands |
12 Months Ended |
|
Dec. 31, 2016 |
Jan. 02, 2016 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Exercise Price |
$ 2.08
|
$ 2.04
|
| Outstanding |
2,624,950
|
|
| Outstanding Intrinsic Value |
$ 24,610
|
|
| Exercisable |
2,606,950
|
|
| Exercisable Intrinsic Value |
$ 24,553
|
|
| Range One [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Remaining Contractual Life |
3 years 2 months 12 days
|
|
| Outstanding |
2,604,950
|
|
| Outstanding Intrinsic Value |
$ 24,610
|
|
| Exercisable |
2,598,950
|
|
| Exercisable Intrinsic Value |
$ 24,553
|
|
| Range One [Member] | Minimum [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Exercise Price |
$ 1.6
|
|
| Range One [Member] | Maximum [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Exercise Price |
2.31
|
|
| Range Two [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Exercise Price |
$ 11.81
|
|
| Remaining Contractual Life |
7 years 2 months 12 days
|
|
| Outstanding |
20,000
|
|
| Exercisable |
8,000
|
|