Stock-Based Compensation (Non-Vested Activity - Tables - Stock Options, RSUs, PSUs) (Details) - $ / shares	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Non-vested at beginning of year	2,843,676
Grants	1,120,406
Vested	(756,075)
Forfeited or expired	(1,058,786)
Non-vested at end of year	2,149,221	2,843,676
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Non-vested at beginning of year	$ 3.06
Grants	4.12
Vested	3.19
Forfeited or expired	3.05
Non-vested at end of year	3.57	$ 3.06
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Grants	$ 4.12	$ 1.86	$ 4.37
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Non-vested at beginning of year	175,860
Grants	762,710
Vested	(95,724)
Forfeited or expired	(67,490)
Non-vested at end of year	775,356	175,860
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Non-vested at beginning of year	$ 6.1
Grants	9.18
Vested	6.31
Forfeited or expired	9.5
Non-vested at end of year	$ 8.85	$ 6.1
Performance Share Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Non-vested at beginning of year	454,425
Grants	1,560,535
Vested	0
Forfeited or expired	(495,208)
Non-vested at end of year	1,519,752	454,425
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Non-vested at beginning of year	$ 6.75
Grants	5.64
Vested	0
Forfeited or expired	6.7
Non-vested at end of year	$ 5.68	$ 6.75