Indebtedness (Schedule of Minimum Annual Payments Under Capital Lease Obligations and Maturities of Indebtedness) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jan. 02, 2016
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Minimum Lease Payments	$ 52,716
Less: Interest	2,272
Principal	50,444
Carrying amount of long-term debt	500,000
Total debt and capital lease obligations	564,365	$ 605,866
2017
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Minimum Lease Payments	27,426
Less: Interest	1,229
Principal	26,197
Total debt and capital lease obligations	26,197
2018
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Minimum Lease Payments	12,409
Less: Interest	690
Principal	11,719
Total debt and capital lease obligations	14,219
2019
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Minimum Lease Payments	9,010
Less: Interest	292
Principal	8,718
Total debt and capital lease obligations	8,718
2020
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Minimum Lease Payments	3,435
Less: Interest	55
Principal	3,380
Total debt and capital lease obligations	4,480
2021
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Minimum Lease Payments	436
Less: Interest	6
Principal	430
Total debt and capital lease obligations	2,130
2022 and thereafter
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Minimum Lease Payments	0
Less: Interest	0
Principal	0
Total debt and capital lease obligations	508,621
Senior Notes [Member]
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	500,000
Senior Notes [Member] | 2017
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	0
Senior Notes [Member] | 2018
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	0
Senior Notes [Member] | 2019
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	0
Senior Notes [Member] | 2020
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	0
Senior Notes [Member] | 2021
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	0
Senior Notes [Member] | 2022 and thereafter
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	500,000
Other [Member]
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	13,921
Other [Member] | 2017
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	0
Other [Member] | 2018
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	2,500
Other [Member] | 2019
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	0
Other [Member] | 2020
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	1,100
Other [Member] | 2021
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	1,700
Other [Member] | 2022 and thereafter
Schedule of Future Minimum Lease Payments For Capital Leases and Maturities of Indebtedness [Line Items]
Carrying amount of long-term debt	$ 8,621