Description of Business and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Guidance Effective December 31, 2018, the beginning of our Fiscal 2019 year, we adopted Accounting Standards Update (“ASU”) ASU 2016-02, Leases (Topic 842) (“ASU 2016-02”) and the subsequent amendment ASU 2018-11, Leases (Topic 842): Target Improvements (“ASU 2018-11”). ASU 2016-02 introduces a new lease model that requires the recognition of lease right-of-use assets and operating lease liabilities on the balance sheet and the disclosure of key information about leasing arrangements. ASU 2018-11 provides for another transition method in addition to the modified retrospective approach required by ASU 2016-02. This option allows for entities to initially apply ASU 2016-02 at the adoption date and recognize a cumulative adjustment to the opening balance sheet in the period of adoption. The cumulative impact of adopting ASU 2016-02 did not require us to record an adjustment to our opening accumulated deficit as of December 31, 2018 in our Consolidated Balance Sheet. Upon the adoption of ASU 2016-02, we applied the package of practical expedients included therein, which eliminated the requirements to reassess prior conclusions about lease identification, lease classification, and initial direct costs. We did not elect the hindsight practical expedient, which permits the use of hindsight when determining lease term. Further, we elected a short-term lease exception policy, permitting us to not apply the recognition requirements of this standard to short-term leases (i.e. leases with terms of 1 year or less) and an accounting policy to account for lease and non-lease components as a single component for real estate operating leases. We also utilized the transition method included in ASU 2018-11. By applying ASU 2016-02 at the adoption date, as opposed to at the beginning of the earliest period presented, the presentation of financial information for periods prior to December 31, 2018 remained unchanged and in accordance with Accounting Standards Codification (“ASC”) 840 Leases (Topic 840). The adoption of ASU 2016-02 resulted in the recognition as of December 31, 2018 of Right-of-Use assets related to our operating leases of $557.1 million and lease liabilities related to our operating leases of $590.8 million. In addition, as a result of electing to account for lease and non-lease components as a single component for certain classes of assets, lease costs for the three and six months ended June 30, 2019 include $3.6 million and $7.1 million, respectively, of common area maintenance charges, which was previously included in “Other venue operating expenses” in our Consolidated Statement of Earnings. Other venue operating expenses in our Consolidated Statement of Earnings for the three and six months ended July 1, 2018 includes common area maintenance charges of $3.4 million and $7.0 million, respectively. The adoption of the guidance did not have a material impact on our Consolidated Statement of Cash Flows.
Business Description and Basis of Presentation [Text Block]	1. Description of Business and Summary of Significant Accounting Policies: Description of Business The use of the terms “CEC Entertainment,” the “Company,” “we,” “us” and “our” throughout these unaudited notes to the interim Consolidated Financial Statements refer to CEC Entertainment, Inc. and its subsidiaries. We currently operate and franchise Chuck E. Cheese and Peter Piper Pizza family dining and entertainment venues in 47 states and 14 foreign countries and territories. As of June 30, 2019, we and our franchisees operated a total of 749 venues, of which 554 were Company-operated venues located in 44 states and Canada. Our franchisees operated a total of 195 venues located in 14 states and 13 foreign countries and territories, including Chile, Colombia, Costa Rica, Guam, Guatemala, Honduras, Mexico, Panama, Peru, Puerto Rico, Saudi Arabia, Trinidad & Tobago, and the United Arab Emirates. As of June 30, 2019, a total of 181 Chuck E. Cheese venues are located in California, Texas, and Florida (178 are Company-operated and three are franchised locations), and a total of 132 Peter Piper Pizza venues are located in Arizona, Texas, and Mexico (33 are Company-operated and 99 are franchised locations). All of our venues utilize a consistent restaurant-entertainment format that features both family dining and entertainment areas with a mix of food, entertainment and merchandise. The economic characteristics, products and services, preparation processes, distribution methods and types of customers are substantially similar for each of our venues. Therefore, we aggregate each venue’s operating performance into one reportable segment for financial reporting purposes.
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	Description of Business and Summary of Significant Accounting Policies: Description of Business The use of the terms “CEC Entertainment,” the “Company,” “we,” “us” and “our” throughout these unaudited notes to the interim Consolidated Financial Statements refer to CEC Entertainment, Inc. and its subsidiaries. We currently operate and franchise Chuck E. Cheese and Peter Piper Pizza family dining and entertainment venues in 47 states and 14 foreign countries and territories. As of June 30, 2019, we and our franchisees operated a total of 749 venues, of which 554 were Company-operated venues located in 44 states and Canada. Our franchisees operated a total of 195 venues located in 14 states and 13 foreign countries and territories, including Chile, Colombia, Costa Rica, Guam, Guatemala, Honduras, Mexico, Panama, Peru, Puerto Rico, Saudi Arabia, Trinidad & Tobago, and the United Arab Emirates. As of June 30, 2019, a total of 181 Chuck E. Cheese venues are located in California, Texas, and Florida (178 are Company-operated and three are franchised locations), and a total of 132 Peter Piper Pizza venues are located in Arizona, Texas, and Mexico (33 are Company-operated and 99 are franchised locations). All of our venues utilize a consistent restaurant-entertainment format that features both family dining and entertainment areas with a mix of food, entertainment and merchandise. The economic characteristics, products and services, preparation processes, distribution methods and types of customers are substantially similar for each of our venues. Therefore, we aggregate each venue’s operating performance into one reportable segment for financial reporting purposes. Basis of Presentation The Company has a controlling financial interest in International Association of CEC Entertainment, Inc. (the “Association”), a variable interest entity (“VIE”). The Association primarily administers the collection and disbursement of funds (the “Association Funds”) used for advertising, entertainment and media programs that benefit both us and our Chuck E. Cheese franchisees. We and our franchisees are required to contribute a percentage of gross sales to these funds and could be required to make additional contributions to fund any deficits that may be incurred by the Association. We include the Association in our Consolidated Financial Statements, as we concluded that we are the primary beneficiary of its variable interests because we (a) have the power to direct the majority of its significant operating activities; (b) provide it unsecured lines of credit; and (c) own the majority of the venues that benefit from the Association’s advertising, entertainment and media expenditures. We eliminate the intercompany portion of transactions with VIEs from our financial results. The assets, liabilities and operating results of the Association are not material to our Consolidated Financial Statements. The Association Funds are required to be segregated and used for specified purposes. Cash balances held by the Association are restricted for use in our advertising, entertainment and media programs, and are recorded as “Restricted cash” on our Consolidated Balance Sheets. Contributions to the advertising, entertainment and media funds from our franchisees were $1.7 million and $1.3 million for the six months ended June 30, 2019 and July 1, 2018, respectively. Our contributions to the Association Funds are eliminated in consolidation. The preparation of these unaudited Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States (“U.S. GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of our unaudited Consolidated Financial Statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. We operate on a 52 or 53 week fiscal year that ends on the Sunday nearest to December 31. Each quarterly period has 13 weeks, except for a 53 week year when the fourth quarter has 14 weeks. Our current fiscal year, which ends on December 29, 2019, and our fiscal year ended December 30, 2018, each consist of 52 weeks. References to the three-month and six-month periods ended June 30, 2019 and July 1, 2018 are for the 13-week and 26-week periods ended June 30, 2019 and July 1, 2018, respectively. Interim Financial Statements The accompanying Consolidated Financial Statements as of and for the three and six months ended June 30, 2019 and July 1, 2018 are unaudited and are presented in accordance with the requirements for quarterly reports on Form 10-Q and, consequently, do not include all of the information and footnote disclosures required by GAAP. In the opinion of management, the Consolidated Financial Statements include all adjustments (consisting solely of normal recurring adjustments) necessary for the fair statement of its consolidated results of operations, financial position and cash flows as of the dates and for the periods presented in accordance with GAAP and the rules and regulations of the United States Securities and Exchange Commission (the “SEC”). All intercompany accounts have been eliminated in consolidation. Consolidated results of operations for interim periods are not necessarily indicative of results for the full year. The unaudited Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and related notes included in our Annual Report on Form 10-K for the fiscal year ended December 30, 2018, filed with the SEC on March 12, 2019.
Basis of Presentation	Basis of Presentation The Company has a controlling financial interest in International Association of CEC Entertainment, Inc. (the “Association”), a variable interest entity (“VIE”). The Association primarily administers the collection and disbursement of funds (the “Association Funds”) used for advertising, entertainment and media programs that benefit both us and our Chuck E. Cheese franchisees. We and our franchisees are required to contribute a percentage of gross sales to these funds and could be required to make additional contributions to fund any deficits that may be incurred by the Association. We include the Association in our Consolidated Financial Statements, as we concluded that we are the primary beneficiary of its variable interests because we (a) have the power to direct the majority of its significant operating activities; (b) provide it unsecured lines of credit; and (c) own the majority of the venues that benefit from the Association’s advertising, entertainment and media expenditures. We eliminate the intercompany portion of transactions with VIEs from our financial results. The assets, liabilities and operating results of the Association are not material to our Consolidated Financial Statements. The Association Funds are required to be segregated and used for specified purposes. Cash balances held by the Association are restricted for use in our advertising, entertainment and media programs, and are recorded as “Restricted cash” on our Consolidated Balance Sheets. Contributions to the advertising, entertainment and media funds from our franchisees were $1.7 million and $1.3 million for the six months ended June 30, 2019 and July 1, 2018, respectively. Our contributions to the Association Funds are eliminated in consolidation. The preparation of these unaudited Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States (“U.S. GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of our unaudited Consolidated Financial Statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.