Consolidated Statements of Stockholders' Equity (Deficit) (Parenthetical)	Dec. 30, 2017	Dec. 31, 2016	Sep. 14, 2016	Jun. 16, 2014	Feb. 26, 2014
2.125% Convertible Senior Notes Due 2026
Interest rate, stated percentage	2.125%	2.125%	2.125%
7.00% Senior Notes due 2024
Interest rate, stated percentage	7.00%	7.00%		7.00%
6.75% Senior Notes due 2019
Interest rate, stated percentage	6.75%				6.75%