Stockholders' Equity (Deficit) - Share Repurchase Program (Details) - USD ($) $ in Thousands			1 Months Ended	3 Months Ended
	Mar. 06, 2018	Mar. 01, 2018	May 01, 2018	Apr. 01, 2018	Mar. 26, 2017
Share repurchase program
Cash payment for repurchase of common stock				$ 141,736	$ 13,075
Common stock repurchase program
Share repurchase program
Stock repurchase program, authorized amount				$ 2,075,000
Common stock repurchase program | Subsequent event
Share repurchase program
Stock repurchased during period, shares			28,739
Stock repurchased during period, value			$ 1,700
ASR Agreement
Share repurchase program
Stock repurchase program, authorized amount		$ 100,000
Cash payment for repurchase of common stock		$ 100,000
Stock repurchased during period, shares	1,300,000
Stock repurchased during period, value	$ 78,000