Document and Entity Information	6 Months Ended
	Jul. 01, 2018 shares
Document Information [Abstract]
Document Type	10-Q
Entity Central Index Key	0000813920
Document Fiscal Period Focus	Q2
Amendment Flag	false
Document Period End Date	Jul. 01, 2018
Document Fiscal Year Focus	2018
Trading Symbol	CEC
Entity Registrant Name	CEC ENTERTAINMENT INC
Current Fiscal Year End Date	--12-30
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding	200