National CineMedia (NCMI) 10-Q 5 Nov 18 2018 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 27, 2018	Nov. 01, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 27, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Trading Symbol	NCMI
Entity Registrant Name	National CineMedia, Inc.
Entity Central Index Key	1,377,630
Entity Filer Category	Accelerated Filer
Current Fiscal Year End Date	--12-27
Entity Common Stock, Shares Outstanding		78,958,816

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 27, 2018	Dec. 28, 2017
CURRENT ASSETS:
Cash and cash equivalents	$ 27.3	$ 30.2
Short-term marketable securities	29.2	13.1
Receivables, net of allowance of $5.8 and $6.0, respectively	114.1	160.6
Prepaid expenses	4	4.2
Income tax receivable	0.5	0.2
Amounts due from founding members, net	3.6	0
Current portion of notes receivable - founding members (including receivables from related parties of $2.8 and $4.2, respectively)	4.2	4.2
Other current assets	0.4	0.1
Total current assets	183.3	212.6
NON-CURRENT ASSETS:
Property and equipment, net of accumulated depreciation of $68.7 and $70.4, respectively	32.8	30.7
Intangible assets, net of accumulated amortization of $165.8 and $145.4, respectively	699.5	717.2
Deferred tax assets, net of valuation allowance of $77.9 and $98.1, respectively	180.7	186
Long-term notes receivable, net of current portion - founding members (including receivables from related parties of $2.7 and $4.1, respectively)	4.1	4.1
Other investments	3.2	3.5
Long-term marketable securities	10.2	16.2
Debt issuance costs, net	5.3	1.3
Other assets	0.9	1.5
Total non-current assets	936.7	960.5
TOTAL ASSETS	1,120	1,173.1
CURRENT LIABILITIES:
Amounts due to founding members, net	21.1	32.7
Payable to founding members under tax receivable agreement (including payables to related parties of $10.1 and $19.6, respectively)	13.7	19.6
Accrued expenses	19.8	19.9
Accrued payroll and related expenses	12.5	11.1
Accounts payable	17.6	19.3
Deferred revenue	6.5	7.1
Short-term debt	2.7	0
Total current liabilities	93.9	109.7
NON-CURRENT LIABILITIES:
Long-term debt, net of debt issuance costs of $8.2 and $8.7, respectively	914.8	923.3
Income tax payable	0	0.3
Payable to founding members under tax receivable agreement (including payables to related parties of $143.6 and $212.6, respectively)	197.6	212.6
Other liabilities	4.1	2
Total non-current liabilities	1,116.5	1,138.2
Total liabilities	1,210.4	1,247.9
COMMITMENTS AND CONTINGENCIES (NOTE 8)
EQUITY/(DEFICIT):
Preferred stock, $0.01 par value; 10,000,000 shares authorized, none issued and outstanding, respectively	0	0
Common stock, $0.01 par value; 175,000,000 shares authorized, 76,932,494 and 76,242,222 issued and outstanding, respectively	0.8	0.8
Additional paid in capital/(deficit)	(216.2)	(233.1)
Retained earnings (distributions in excess of earnings)	(156.8)	(130.2)
Total NCM, Inc. stockholders’ equity/(deficit)	(372.2)	(362.5)
Noncontrolling interests	281.8	287.7
Total equity/(deficit)	(90.4)	(74.8)
TOTAL LIABILITIES AND EQUITY/(DEFICIT)	$ 1,120	$ 1,173.1

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) - USD ($) $ in Millions	Sep. 27, 2018	Dec. 28, 2017
Allowance for doubtful accounts receivable	$ 5.8	$ 6
Receivables from related parties, current	4.2	4.2
Receivables from related parties, noncurrent	4.1	4.1
Accumulated depreciation, property and equipment	68.7	70.4
Accumulated amortization, intangible assets	165.8	145.4
Deferred tax assets, valuation allowance	77.9	98.1
Current payable to founding members under tax receivable agreement	13.7	19.6
Long-term payable to founding members under tax receivable agreement	197.6	212.6
Debt issuance costs, long-term	$ 8.2	$ 8.7
Preferred stock, par value (in usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	175,000,000	175,000,000
Common stock, shares issued (in shares)	76,932,494	76,242,222
Common stock, shares outstanding (in shares)	76,932,494	76,242,222
Founding Members
Receivables from related parties, current	$ 2.8	$ 4.2
Receivables from related parties, noncurrent	2.7	4.1
Current payable to founding members under tax receivable agreement	10.1	19.6
Long-term payable to founding members under tax receivable agreement	$ 143.6	$ 212.6

CONDENSED STATEMENTS OF INCOME

CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017
REVENUE (including revenue from related parties of $5.8, $6.7, $21.8 and $22.7, respectively)	$ 110.1	$ 116.4	$ 304	$ 285.4
OPERATING EXPENSES:
Network costs	3.2	3.7	10	11.9
Theater access fees—founding members (including fees to related parties of $13.4, $18.1, $55.5 and $57.4, respectively)	19.7	18.1	61.8	57.4
Selling and marketing costs	15.3	17.2	48	54.2
Administrative and other costs	9.3	8.8	34.7	28.6
Depreciation and amortization	10	9.4	29.5	28.2
Total	67.8	66.1	210.5	201.7
OPERATING INCOME	42.3	50.3	93.5	83.7
NON-OPERATING EXPENSES:
Interest on borrowings	14.4	13.1	42.3	39.4
Interest income	(0.3)	(0.2)	(1)	(1)
Loss (gain) on re-measurement of the payable to founding members under the tax receivable agreement	3.2	0	(4.6)	(0.6)
Other non-operating (income) expense	(0.4)	0	0.8	(0.1)
Total	16.9	12.9	37.5	37.7
INCOME BEFORE INCOME TAXES	25.4	37.4	56	46
Income tax expense (benefit)	(0.3)	1.2	16.7	1
CONSOLIDATED NET INCOME	25.7	36.2	39.3	45
Less: Net income attributable to noncontrolling interests	14.5	22.5	25.8	27.4
NET INCOME ATTRIBUTABLE TO NCM, INC.	11.2	13.7	13.5	17.6
COMPREHENSIVE INCOME ATTRIBUTABLE TO NCM, INC.	$ 11.2	$ 13.7	$ 13.5	$ 17.6
NET INCOME PER NCM, INC. COMMON SHARE:
Basic (in usd per share)	$ 0.15	$ 0.21	$ 0.18	$ 0.29
Diluted (in usd per share)	$ 0.14	$ 0.21	$ 0.16	$ 0.28
WEIGHTED AVERAGE SHARES OUTSTANDING:
Basic (in shares)	76,924,983	63,993,273	76,825,828	61,637,445
Diluted (in shares)	77,485,561	64,281,581	156,987,736	62,074,577
Dividends declared per common share (in usd per share)	$ 0.17	$ 0.22	$ 0.51	$ 0.66
Advertising operating costs
OPERATING EXPENSES:
Advertising operating costs	$ 10.3	$ 8.9	$ 26.5	$ 21.4

CONDENSED STATEMENTS OF INCOM_2

CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (PARENTHETICAL) (UNAUDITED) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017
Revenue	$ 110,100,000	$ 116,400,000	$ 304,000,000	$ 285,400,000
Founding Members
Revenue	5,800,000	6,700,000	21,800,000	22,700,000
Fees to related parties	$ 13,400,000	$ 18,100,000	$ 55,500,000	$ 57,400,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Consolidated net income	$ 39.3	$ 45
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Deferred income tax expense	16.6	2.5
Depreciation and amortization	29.5	28.2
Non-cash share-based compensation	6.2	8.3
Impairment on investment	0.4	3.1
Amortization of debt issuance costs	2	2
Non-cash gain on re-measurement of the payable to founding members under the tax receivable agreement	(4.6)	(0.6)
Write-off of debt issuance costs	0.9	0
Reversal of tax contingency reserve	(0.4)	(1.7)
Other	(0.5)	(0.2)
Changes in operating assets and liabilities:
Receivables, net	46.5	42.1
Accounts payable and accrued expenses	(0.4)	(1.7)
Amounts due to/from founding members, net	(0.5)	(0.4)
Payment to the founding members under tax receivable agreement (including payments to related parties of $17.6 and $17.3, respectively)	(17.6)	(17.3)
Deferred revenue	(0.6)	(4.6)
Income taxes and other	2	(0.7)
Net cash provided by operating activities	118.8	104
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(10)	(7.7)
Acquisition of a business	0	(0.2)
Purchases of marketable securities	(30.9)	(21.7)
Proceeds from sale and maturities of marketable securities	20.9	48.4
Purchases of intangible assets from network affiliates	0	(1.7)
Proceeds from notes receivable - founding members (including payments from related parties of $0.0 and $1.4, respectively)	0	1.4
Net cash (used in) provided by investing activities	(20)	18.5
CASH FLOWS FROM FINANCING ACTIVITIES:
Payment of dividends	(41.2)	(42.1)
Proceeds from revolving credit facility	139.2	60
Repayments of revolving credit facility	(137.2)	(75)
Repayments of Notes due 2026	(7.2)	0
Repayments of Notes due 2026	270	0
Proceeds from term loan facility	(270.7)	0
Payment of debt issuance costs	(6.6)	0
Founding member integration and other encumbered theater payments (including payments from related parties of $12.1 and $6.1, respectively)	17.2	6.1
Distributions to founding members	(63)	(60.1)
Proceeds from stock option exercises	0	0.6
Repurchase of stock for restricted stock tax withholding	(2.2)	(4.6)
Net cash used in financing activities	(101.7)	(115.1)
CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH:	(2.9)	7.4
Cash, cash equivalents and restricted cash at beginning of period	30.2	23
Cash, cash equivalents and restricted cash at end of period	27.3	30.4
Supplemental disclosure of non-cash financing and investing activity:
Purchase of an intangible asset with NCM LLC equity	15.9	201.8
Accrued distributions to founding members	19.1	27.2
Purchase of subsidiary equity with NCM, Inc. equity	0	77.8
Accrued purchases of property and equipment	1	0
Accrued integration and other encumbered theater payments due from founding members (including accrued payments due from related parties of $0.3 and $0.0, respectively)	5.1	0
Decrease in dividend equivalent accrual not requiring cash in the period	(1.3)	(1.3)
Supplemental disclosure of cash flow information:
Cash paid for interest	38.2	34.9
Cash paid for income taxes, net of refunds	$ 0.3	$ 1.5

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (PARENTHETICAL) - USD ($) $ in Millions	3 Months Ended
	Sep. 27, 2018	Sep. 28, 2017
Founding Members
Payment to the founding members under tax receivable agreement	$ 17.6	$ 17.3
Notes receivable payments received from related parties	0	1.4
Integration and other encumbered theater payments received from founding members	0	0
Accrued integration and other encumbered theater payments due from founding members	$ 0.3	$ 0

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY/(DEFICIT) - USD ($) $ in Millions	Total	Common Stock	Additional Paid in Capital (Deficit)	Retained Earnings (Distribution in Excess of Earnings)	Noncontrolling Interest
Balance at Dec. 29, 2016	$ (232.2)	$ 0.6	$ (343.6)	$ (130.7)	$ 241.5
Balance (in shares) at Dec. 29, 2016		59,874,412
Distributions to founding members	(47.4)				(47.4)
NCM LLC equity issued for purchase of intangible asset	201.8		78.8		123
Income tax and other impacts of NCM LLC ownership changes	(42.3)		6.1		(48.4)
Issuance of shares	77.8	$ 0.2	77.6
NCM, Inc. investment in NCM LLC	(77.8)		(77.8)
Issuance of shares (in shares)		14,600,000
Comprehensive income, net of tax	45			17.6	27.4
Share-based compensation issued	(4)		(4)
Share-based compensation issued (in shares)		755,886
Share-based compensation expense/capitalized	8.6		5.3		3.3
Cash dividends declared	(40.8)			(40.8)
Balance at Sep. 28, 2017	(111.3)	$ 0.8	(257.6)	(153.9)	299.4
Balance (in shares) at Sep. 28, 2017		75,230,298
Balance at Dec. 28, 2017	$ (74.8)	$ 0.8	(233.1)	(130.2)	287.7
Balance (in shares) at Dec. 28, 2017	76,242,222	76,242,222
Distributions to founding members	$ (44.5)				(44.5)
NCM LLC equity issued for purchase of intangible asset	15.9		7.7		8.2
Income tax and other impacts of NCM LLC ownership changes	9.6		6.9		2.7
Comprehensive income, net of tax	39.3			13.5	25.8
Share-based compensation issued	(2.1)		(2.1)
Share-based compensation issued (in shares)		690,272
Share-based compensation expense/capitalized	6.3		4.4		1.9
Cash dividends declared	(39.9)			(39.9)
Balance at Sep. 27, 2018	$ (90.4)	$ 0.8	$ (216.2)	$ (156.8)	$ 281.8
Balance (in shares) at Sep. 27, 2018	76,932,494	76,932,494

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY/(DEFICIT) (PARENTHETICAL) (UNAUDITED) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017
Statement of Stockholders' Equity [Abstract]
Dividends per share (in usd per share)	$ 0.17	$ 0.22	$ 0.51	$ 0.66

The Company

The Company	9 Months Ended
	Sep. 27, 2018
Accounting Policies [Abstract]
The Company	THE COMPANY Description of Business National CineMedia, Inc. (“NCM, Inc.”) was incorporated in Delaware as a holding company with the sole purpose of becoming a member and sole manager of National CineMedia, LLC (“NCM LLC”), a limited liability company owned by NCM, Inc., Regal Cinemas, Inc. and Regal CineMedia Holdings, LLC, wholly owned subsidiaries of Cineworld Group plc and Regal Entertainment Group (“Regal”) and Cinemark Media, Inc. and Cinemark USA, Inc., wholly owned subsidiaries of Cinemark Holdings, Inc. (“Cinemark”). The terms “NCM”, “the Company” or “we” shall, unless the context otherwise requires, be deemed to include the consolidated entity. On July 5, 2018, American Multi-Cinema, Inc. and AMC ShowPlace Theatres, Inc., wholly owned subsidiaries of AMC Entertainment, Inc. (“AMC”), closed on the sale of 100.0% of its remaining NCM LLC membership units to Regal and Cinemark. AMC, Regal, Cinemark and their affiliates are referred to in this document as “founding members”. NCM LLC operates the largest cinema advertising network reaching movie audiences in North America, allowing NCM LLC to sell advertising under long-term exhibitor services agreements (“ESAs”) with the founding members (approximately 18 years remaining as of September 27, 2018 ) and certain third-party theater circuits, referred to in this document as “network affiliates” under long-term network affiliate agreements, which have terms from one to twenty years. As of September 27, 2018 , NCM LLC had 157,593,316 common membership units outstanding, of which 76,932,494 ( 48.8% ) were owned by NCM, Inc., 41,142,178 ( 26.1% ) were owned by Regal, 39,518,644 ( 25.1% ) were owned by Cinemark and 0 ( 0.0% ) were owned by AMC. The membership units held by the founding members are exchangeable into NCM, Inc. common stock on a one -for-one basis. Basis of Presentation The Company has prepared the unaudited Condensed Consolidated Financial Statements and related notes of NCM, Inc. in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, certain information and footnote disclosures typically included in an annual report have been condensed or omitted for this quarterly report. The balance sheet as of December 28, 2017 is derived from the audited financial statements of NCM, Inc. Therefore, the unaudited Condensed Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and notes thereto included in the Company’s annual report on Form 10-K filed for the fiscal year ended December 28, 2017 . In the opinion of management, all adjustments necessary to present fairly in all material respects the financial position, results of operations and cash flows for all periods presented have been made. The Company’s business is seasonal and for this and other reasons operating results for interim periods may not be indicative of the Company’s full year results or future performance. As a result of the various related party agreements discussed in Note 5— Related Party Transactions , the operating results as presented are not necessarily indicative of the results that might have occurred if all agreements were with non-related third parties. The Company manages its business under one reportable segment of advertising. Estimates —The preparation of the financial statements in conformity with 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 the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates include those related to the reserve for uncollectible accounts receivable, share-based compensation and income taxes. Actual results could differ from those estimates. Significant Accounting Policies The Company’s annual financial statements included in its Form 10-K filed for the fiscal year ended December 28, 2017 contain a complete discussion of the Company’s significant accounting policies. Following is additional information related to the Company’s accounting policies. Revenue Recognition —The Company derives revenue principally from the advertising business, which includes on-screen and lobby network (LEN) advertising and lobby promotions and advertising on websites and mobile applications owned by NCM LLC and other companies. Revenue is recognized over time as the customer receives the benefits provided by NCM LLC’s advertising services and the Company has the right to payment for performance to date. The Company considers the terms of each arrangement to determine the appropriate accounting treatment as more fully discussed in Note 2 - Revenue from Contracts with Customers . Concentration of Credit Risk and Significant Customers —Bad debts are provided for using the allowance for doubtful accounts method based on historical experience and management’s evaluation of outstanding receivables at the end of the period. Receivables are written off when management determines amounts are uncollectible. Trade accounts receivable are uncollateralized and represent a large number of geographically dispersed debtors. The collectability risk with respect to national and regional advertising is reduced by transacting with founding members or large, national advertising agencies that have strong reputations in the advertising industry and clients with stable financial positions. The Company has smaller contracts with thousands of local clients that are not individually significant. As of September 27, 2018 and December 28, 2017 , there were no advertising agency groups or individual customers through which the Company sources national advertising revenue representing more than 10% of the Company’s outstanding gross receivable balance. During the three and nine months ended September 27, 2018 and September 28, 2017 , the Company had no customers that accounted for more than 10% of revenue. Share-Based Compensation —The Company has issued stock options and restricted stock to certain employees and restricted stock units to its independent directors. The Company has not granted stock options since 2012. In 2017 and 2018, the restricted stock grants for Company management vest upon the achievement of Company performance measures and/or service conditions, while non-management grants vest only upon the achievement of service conditions. Compensation expense of restricted stock that vests upon the achievement of Company performance measures is based on management’s financial projections and the probability of achieving the projections, which require considerable judgment. A cumulative adjustment is recorded to share-based compensation expense in periods that management changes its estimate of the number of shares of restricted stock expected to vest. Ultimately, the Company adjusts the expense recognized to reflect the actual vested shares following the resolution of the performance conditions. Dividends are accrued when declared on unvested restricted stock that is expected to vest and are only paid with respect to shares that actually vest. During the three and nine months ended September 27, 2018 and September 28, 2017 , 21,807 , 20,204 , 997,403 and 1,028,322 shares of restricted stock and restricted stock units vested, respectively. During the three and nine months ended September 27, 2018 , and September 28, 2017 , 0 , 0 , 0 , and 58,450 stock options were exercised at a weighted average exercise price of $0.00 , $0.00 , $ 0.00 and $ 11.04 per share. Consolidation —NCM, Inc. consolidates the accounts of NCM LLC under the provisions of ASC 810, Consolidation (“ASC 810”). The following table presents the changes in NCM, Inc.’s equity resulting from net income attributable to NCM, Inc. and transfers to or from noncontrolling interests (in millions): Nine Months Ended September 27, September 28, Net income attributable to NCM, Inc. $ 13.5 $ 17.6 NCM LLC equity issued for purchase of intangible asset 7.7 78.8 Income tax and other impacts of subsidiary ownership changes 6.9 6.1 NCM, Inc. investment in NCM LLC — (77.8 ) Issuance of shares — 77.6 Change from net income attributable to NCM, Inc. and transfers from noncontrolling interests $ 28.1 $ 102.3 Recently Adopted Accounting Pronouncements During the first quarter of 2018, the Company adopted Accounting Standards Update 2014-9, Revenue from Contracts with Customers (Topic 606) (“ASU 2014-9”) using the modified retrospective transition method. The Company identified the same performance obligations under ASU 2014-9 as compared with deliverables and separate units of account previously identified. ASU 2014-9 impacted the accounting for barter transactions where the Company exchanges advertising time for products and services used principally for selling and marketing activities. The Company historically recognized revenue for these transactions at the estimated fair value of the advertising exchanged based on the fair value received for similar advertising from cash paying customers. In accordance with the new guidance, the Company will recognize revenue for these transactions based upon the fair value of the products and services received, rather than the value of the advertising provided. The modified retrospective transition method allows entities to apply the new revenue standard prospectively and record a cumulative-effect adjustment to the opening balance of retained earnings in the period the new revenue standard is first applied. Upon the adoption of ASU 2014-9 on December 29, 2017, the Company recorded a $0.2 million cumulative-effect adjustment related to the change in accounting for barter transactions on contracts that are not completed as of December 29, 2017 in the unaudited Consolidated Balance Sheet. The Company’s adoption of ASU 2014-9 did not have a material impact on the unaudited Condensed Consolidated Financial Statements. The Company has incorporated additional disclosures in Note 2— Revenue from Contracts with Customers to the unaudited Condensed Consolidated Financial Statements to comply with ASU 2014-9. During the first quarter of 2018, the Company adopted Accounting Standards Update 2016-1, Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-1”), which requires equity investments that are not accounted for under the equity method of accounting to be measured at fair value with changes recognized in earnings (rather than reported through other comprehensive income) and updates certain presentation and disclosure requirements. In February 2018, the FASB issued Accounting Standards Update 2018-3, Technical Corrections and Improvements to Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2018-3”). These amendments clarify the guidance on certain topics referred to in ASU 2016-1. The Company has incorporated changes to the methodology utilized to value the Company’s investments and changes to disclosures in its notes to the unaudited Condensed Consolidated Financial Statements to comply with ASU 2016-1. During the first quarter of 2018, the Company adopted Accounting Standards Update 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (“ASU 2016-15”) on a retrospective basis. ASU 2016-15 provides guidance on certain cash receipts and cash payments presented and classified in the statement of cash flows. The adoption of ASU 2016-15 did not have a material impact on the unaudited Condensed Consolidated Financial Statements or notes thereto. During the first quarter of 2018, the Company adopted Accounting Standards Update 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (“ASU 2016-18”) on a retrospective basis. ASU 2016-18 requires that the reconciliation of the beginning-of-period and end-of-period amounts shown in the statement of cash flows include restricted cash and restricted cash equivalents. The Company has adjusted the Condensed Consolidated Statement of Cash Flow for the nine months ended September 28, 2017 to include the restricted cash balance within the aforementioned captions. The adoption of ASU 2016-18 had no other impact on the unaudited Condensed Consolidated Financial Statements or notes thereto. In July 2018, the FASB issued Accounting Standards Update 2018-9, Codification Improvements ("ASU 2018-9”), which makes minor amendments to the codification in order to clarify, correct errors in, eliminate inconsistencies and provide clarifications in current guidance. The ASU amends Subtopics 470-50, Debt-Modifications and Extinguishments and 718-740, Compensation-Stock Compensation-Income Taxes and is effective immediately. The adoption of ASU 2018-9 did not have a material impact on the unaudited Condensed Consolidated Financial Statements or notes thereto. Recently Issued Accounting Pronouncements In February 2016, the FASB issued Accounting Standards Update 2016-2, Leases (Topic 842) (“ASU 2016-2”). ASU 2016-2 establishes a right-of-use (“ROU”) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than twelve months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The new standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Under the original standard, a modified retrospective transition approach was required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. In July 2018, the FASB issued Accounting Standards Update 2018-11 which allows companies to elect the “Comparatives Under 840” option where only the current period financial statements and related disclosures are presented in accordance with the new standard. The Company is still evaluating which transition approach to apply upon adoption. The Company expects to utilize the following practical expedients: (i) not being required to separate lease and nonlease components when accounting for the lease; and (ii) not accounting for short-term leases under the new standard. The Company is still evaluating whether the adoption of ASU 2016-2 will have a material impact on the unaudited Condensed Consolidated Financial Statements. The Company will adopt the standard and its provisions effective December 28, 2018 and will incorporate additional disclosures in its notes to its unaudited Condensed Consolidated Financial Statements to comply with ASU 2016-2 effective in the first quarter of 2019. The Company has designed and will implement changes to certain processes and internal controls upon the adoption of ASU 2016-2. In June 2016, the FASB issued Accounting Standards Update 2016-13, Financial Instruments – Credit Losses (Topic 326), Measurement of Credit Losses on Financial Statements (“ASU 2016-13”), which requires a financial asset (or group of financial assets) measured at amortized cost basis to be presented at the net amount expected to be collected. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset(s) to present the net carrying value at the amount expected to be collected on the financial asset. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, with early adoption permitted and is to be adopted on a modified retrospective basis. The Company is currently evaluating the impact that adopting this guidance will have on the unaudited Condensed Consolidated Financial Statements or notes thereto. In March 2018, the FASB issued Accounting Standards Update 2018-4, Investments – Debt Securities (Topic 320) and Regulated Operations (Topic 980): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 117 and SEC Release No. 33-9273 (“ASU 2018-4”), which amends and supersedes various paragraphs that contain SEC guidance in ASC 320, Investments-Debt Securities and ASC 980, Regulated Operations . The Company is currently evaluating the impact that adopting this guidance will have on the unaudited Condensed Consolidated Financial Statements or notes thereto. In June 2018, the FASB issued Accounting Standards Update 2018-7, Compensation – Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting (“ASU 2018-7”), which amends Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees. ASU 2018-7 is effective for fiscal years beginning December 15, 2018, with early adoption permitted. The Company is currently evaluating the impact that adopting this guidance will have on the unaudited Condensed Consolidated Financial Statements or notes thereto. In August 2018, the FASB issued Accounting Standards Update 2018-13, Fair Value Measurement (Topic 820) : Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”), which modifies the disclosure requirements on fair value measurements. ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, with partial early adoption permitted for eliminated disclosures. The method of adoption varies by the disclosure. The Company is currently evaluating the impact that adopting this guidance will have on the unaudited Condensed Consolidated Financial Statements or notes thereto. In August 2018, the FASB issued ASU 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract ("ASU 2018-15"), which clarifies the accounting for implementation costs in cloud computing arrangements. ASU 2018-15 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating the impact that adopting this guidance will have on the unaudited Condensed Consolidated Financial Statements or notes thereto. In August 2018, the SEC issued a final rule amending certain disclosure requirements deemed by the commission to be redundant, duplicative, overlapping, outdated or superseded. The rule also added requirements to disclose (1) the changes in each caption of stockholders’ equity and non-controlling interests for the current and comparative year-to-date periods, with subtotals for each interim period and (2) the amount of dividends per share for each class of shares. The Company believes that adopting the guidance will result in changes to the presentation of the unaudited Condensed Consolidated Statement of Equity as a quarter to date equity rollforward is now also required for the current and comparable period. The amended disclosure requirements are effective the first quarter beginning after the effective date of the rule. The Company will adopt the rule in the first quarter of 2019. The Company has considered all other recently issued accounting pronouncements and does not believe the adoption of such pronouncements will have a material impact on its unaudited Condensed Consolidated Financial Statements or notes thereto. Change in Accounting Principle and Correction of an Error During the first quarter of 2018, the Company changed its method of accounting for its payable to founding members under the TRA, which requires the Company to pay to the founding members 90% of the expected cash savings of NCM, Inc. from federal, state, and local jurisdictions upon realization of amortization and other deductions specified under the TRA. At inception of the TRA in 2007, the payable was recorded at fair value by discounting the amounts expected to be payable to founding members under the TRA at the Company’s weighted average cost of capital. The Company then remeasured the present value of the payable to founding members under the TRA each subsequent reporting period. As a result of the change in accounting principle, the payable is now stated at the undiscounted amount of all expected future payments under the agreement. The Company believes that the undiscounted presentation is preferable because it is consistent with the predominant accounting method used by other companies with such TRA agreements and is more consistent with the undiscounted approach used for the corresponding deferred tax assets that are subject to the TRA. Accordingly, the Condensed Consolidated Balance Sheets, Condensed Consolidated Statements of Income, Condensed Statements of Equity (Deficit) and Condensed Consolidated Statement of Cash Flows for the respective prior periods have been recast to reflect retrospective application of the change in accounting principle. Since this change in accounting principle dates back to the Company’s initial public offering ("IPO") in 2007, the Company has recorded the cumulative effect for the change in accounting principle to beginning retained earnings as of December 29, 2016. Additionally, subsequent to the issuance of the Company’s Consolidated Financial Statements for the year ended December 29, 2016 , the Company identified an immaterial non-cash error related to the accounting under ASC 740 for the Company’s payable to founding members under the TRA which was corrected within the Company’s Form 10-K for the period ending December 28, 2017 . As a result of the error, the liability under the TRA (including the historical discount on such payable) and related accounts for the year ended December 29, 2016 were restated from the amount previously reported to reflect the additional amounts that will be payable under the TRA upon settlement of all expected future payments to the founding members. Further, the deferred tax liability recorded at the IPO related to the discounted TRA liability was reversed to reflect all applicable basis differences related to the TRA. The impact of the error on the Condensed Consolidated Statements of Income for the three and nine months ended September 28, 2017 is presented within the tables below and the impact of the error on the Condensed Consolidated Statement of Cash Flows and the Condensed Consolidated Statement of Equity for the nine months ended September 28, 2017 is stated below. The unaudited Condensed Consolidated Financial Statements and corresponding footnotes for the three and nine months ended September 28, 2017 have been restated from the amounts previously reported to reflect the correction of this error as shown within the tables below. The following table presents the effect of the change in accounting principle to the December 29, 2016 beginning retained earnings balance and additional paid in capital (deficit) ("APIC") balance (in millions): Beginning retained earnings (distributions in excess of earnings), as of December 29, 2016 – as previously reported $ (248.3 ) Cumulative effect for change in accounting principle $ 117.6 Beginning retained earnings (distributions in excess of earnings), as of December 29, 2016 – as adjusted $ (130.7 ) Beginning additional paid in capital (deficit), as of December 29, 2016 – as previously reported $ (110.5 ) Cumulative effect for change in accounting principle $ (233.1 ) Beginning additional paid in capital (deficit), as of December 29, 2016 – as adjusted $ (343.6 ) The following table presents the effects of the change in accounting principle to the Condensed Consolidated Balance Sheet (in millions): As of December 28, 2017 As Reported Change in Accounting Principle As Adjusted Long-term deferred tax assets, net of valuation allowance of $98.1 $ 161.0 $ 25.0 $ 186.0 TOTAL ASSETS 1,148.1 25.0 1,173.1 Long-term payable to founding members under tax receivable agreement 114.0 98.6 212.6 Total liabilities 1,149.3 98.6 1,247.9 Additional paid in capital (deficit) 13.8 (246.9 ) (233.1 ) Retained earnings (distributions in excess of earnings) (303.5 ) 173.3 (130.2 ) Total equity/(deficit) (1.2 ) (73.6 ) (74.8 ) TOTAL LIABILITIES AND EQUITY/DEFICIT 1,148.1 25.0 1,173.1 The following tables present the effects of the correction of the prior period error and change in accounting principle to the Condensed Consolidated Statement of Income (in millions, except for per share data): Three Months Ended September 28, 2017 As Reported Correction of an Error As Corrected Change in Accounting Principle As Corrected and Adjusted Accretion of interest on the discounted payable to founding members under tax receivable agreement $ 3.2 $ 1.4 $ 4.6 $ (4.6 ) $ — Total non-operating expenses $ 16.1 $ 1.4 $ 17.5 $ (4.6 ) $ 12.9 INCOME BEFORE INCOME TAXES $ 34.2 $ (1.4 ) $ 32.8 $ 4.6 $ 37.4 Income tax expense $ 2.3 $ 1.0 $ 3.3 $ (2.1 ) $ 1.2 CONSOLIDATED NET INCOME $ 31.9 $ (2.4 ) $ 29.5 $ 6.7 $ 36.2 NET INCOME ATTRIBUTABLE TO NCM, INC. $ 9.4 $ (2.4 ) $ 7.0 $ 6.7 $ 13.7 NET INCOME PER NCM, INC. COMMON SHARE: Basic $ 0.15 $ (0.04 ) $ 0.11 $ 0.10 $ 0.21 Diluted $ 0.15 $ (0.04 ) $ 0.11 $ 0.10 $ 0.21 Nine Months Ended September 28, 2017 As Reported Correction of an Error As Corrected Change in Accounting Principle As Corrected and Adjusted Accretion of interest on the discounted payable to founding members under tax receivable agreement $ 9.5 $ 4.2 $ 13.7 $ (13.7 ) $ — Gain on re-measurement of the payable to founding members under the tax receivable agreement $ — $ (5.6 ) $ (5.6 ) $ 5.0 $ (0.6 ) Total non-operating expenses $ 47.8 $ (1.4 ) $ 46.4 $ (8.7 ) $ 37.7 INCOME BEFORE INCOME TAXES $ 35.9 $ 1.4 $ 37.3 $ 8.7 $ 46.0 Income tax expense (benefit) $ 2.6 $ 3.1 $ 5.7 $ (4.7 ) $ 1.0 CONSOLIDATED NET INCOME $ 33.3 $ (1.7 ) $ 31.6 $ 13.4 $ 45.0 NET INCOME ATTRIBUTABLE TO NCM, INC. $ 5.9 $ (1.7 ) $ 4.2 $ 13.4 $ 17.6 NET INCOME PER NCM, INC. COMMON SHARE: Basic $ 0.10 $ (0.03 ) $ 0.07 $ 0.22 $ 0.29 Diluted $ 0.10 $ (0.03 ) $ 0.07 $ 0.21 $ 0.28 The following table presents the effects of the correction of the prior period error and change in accounting principle to the Condensed Consolidated Statement of Cash Flow (in millions): Nine Months Ended September 28, 2017 As Reported Correction of an Error As Corrected Change in Accounting Principle As Corrected and Adjusted Consolidated net income $ 33.3 $ (1.7 ) $ 31.6 $ 13.4 $ 45.0 Adjustments to reconcile consolidated net income to net cash provided by operating activities: Deferred income tax expense $ 4.1 $ 3.0 $ 7.1 $ (4.6 ) $ 2.5 Accretion of interest on the discounted payable to founding members under tax receivable agreement $ 9.5 $ 4.2 $ 13.7 $ (13.7 ) $ — Non-cash gain on re-measurement of the payable to founding members under tax receivable agreement $ — $ (5.6 ) $ (5.6 ) $ 5.0 $ (0.6 ) Net cash provided by operating activities $ 104.0 $ — $ 104.0 $ — $ 104.0 The correction of the error within the unaudited Condensed Consolidated Statement of Equity resulted in an increase of $1.9 million within the activity and an increase of $99.1 million in the ending balance of the additional paid in capital (deficit) balance for the nine months ended September 28, 2017 . The change in accounting principle resulted in a decrease of $12.0 million within the activity and a decrease of $245.2 million in the ending balance of the additional paid in capital (deficit) balance for the nine months ended September 28, 2017 . These adjustments were within the ‘Income tax and other impacts of NCM LLC ownership changes’ line of the Condensed Consolidated Statements of Equity included herein. The change in accounting principle resulted in a $0.5 million and $4.9 million increase in net income and a $0.01 and $0.06 increase in net income per share for the three and nine months ended September 27, 2018 .

Revenue from Contracts with Cus

Revenue from Contracts with Customers	9 Months Ended
	Sep. 27, 2018
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	REVENUE FROM CONTRACTS WITH CUSTOMERS Revenue Recognition The Company derives revenue principally from the sale of advertising to national, regional and local businesses in Noovie , the Company’s cinema advertising and entertainment pre-show. The Company also sells advertising through the Lobby Entertainment Network (“LEN”), a series of strategically-placed screens located in movie theater lobbies, as well as other forms of advertising and promotions in theater lobbies. In addition, the Company sells online and mobile advertising through the Cinema Accelerator digital product. The Company also has a long-term agreement to exhibit the advertising of the founding members’ beverage suppliers. National advertising, including advertising under the beverage concessionaire and public service announcements ("PSA") agreements, is sold on a cost per thousand (“CPM”) basis. The Company recognizes national advertising over time as impressions (or theater attendees) are delivered. National advertising is also sold to content partners. The content partners provide the Company with original entertainment content segments, typically 90 seconds in length, that are entertaining, informative, or educational in nature in the Noovie pre-show and they make commitments to buy a portion of the Company’s advertising inventory at a specified CPM. The Company recognizes revenue for the content segments ratably over time as the content segments air. Local and regional advertising is sold on a per-screen, per-week basis and to a lesser extent on a CPM basis. The Company recognizes local on-screen advertising revenue over the period in which the advertising airs as dictated by the underlying sales contracts. When sold separately, LEN advertising and lobby promotions are sold based on length and breadth of the promotion. The Company recognizes revenue derived from lobby network and promotions over time when the advertising is displayed in theater lobbies. The Company sells online and mobile advertising on a CPM basis. The Company recognizes revenue from branded entertainment websites and mobile applications over time as the online or mobile impressions are served. Customer contracts often include multiple advertising services to reach the movie goer at multiple points during a theater experience. The Company considers each of these advertising services to represent distinct performance obligations of the contract and allocates a portion of the transaction price to each service based upon the standalone selling price of the service, when available. When standalone selling prices are not available or not applicable given the nature of the customer, the Company allocates the transaction price based upon all information that is reasonably available and maximizes the use of observable inputs. Methods utilized include the adjusted market and expected cost-plus margin approaches. The Company enters into barter transactions that exchange advertising program time for products and services used principally for selling and marketing activities. The Company records barter transactions at the estimated fair value of the products and services received. Revenues for advertising barter transactions are recognized when advertising is provided, and products and services received are charged to expense when used. The Company makes contractual guarantees to deliver a specified number of impressions to view the customers’ advertising. If the contracted number of impressions are not delivered, the Company will run additional advertising to deliver the contracted impressions at a later date. The deferred portion of the revenue associated with undelivered impressions is referred to as a make-good provision. In rare cases, the Company will make a cash refund of the portion of the contract related to the undelivered impressions. Given the limited history of cash settlements of the make-good provision, the Company recognizes revenue on the guaranteed contracts as the impressions are delivered and no reserve for variable consideration is recorded. The Company defers the revenue associated with the make-good until the advertising airs to the theater attendance specified in the advertising contract. The make-good provision is recorded within accrued expenses in the Condensed Consolidated Balance Sheets. As of September 27, 2018 and December 28, 2017 , the Company had a make-good provision of $3.2 million and $5.5 million , respectively. The Company recognizes revenue as the performance obligation for the advertising services is satisfied. Invoices are generated following the processing of each revenue contract and payment is due from the customer within 30 days of the invoice date. Customers select to pay the invoice in full at the start of a contract or through equal monthly installments over the course of the contract. The Company records deferred revenue when cash payments are received, or invoices are issued, in advance of revenue being earned. Deferred revenue is classified as a current liability as it is expected to be earned within the next twelve months. The Company has certain contracts with two -year terms that are noncancelable following a specified date within the contract period. The estimated revenue expected to be recognized in the future related to these contracted performance obligations that are unsatisfied (or partially unsatisfied) as of September 27, 2018 , was $52.6 million , $9.7 million of which is expected to be recognized in 2018 and $42.9 million is expected to be recognized in 2019. Agreements with a duration less than one year are not included within this disclosure as the Company elected to use the practical expedient in ASC 606-10-50-14 for those contracts. In addition, other of the Company’s contracts longer than one year that are cancelable are not included within this disclosure. Disaggregation of Revenue The Company disaggregates revenue based upon the type of customer: national; local and regional; and beverage concessionaire. This method of disaggregation is in alignment with how revenue is reviewed by management and discussed with and historically disclosed to investors. The following table summarizes revenue from contracts with customers for the three and nine months ended September 27, 2018 and September 28, 2017 : Three Months Ended Nine Months Ended September 27, September 28, September 27, September 28, National advertising revenue $ 80.8 $ 84.5 $ 214.4 $ 194.9 Local and regional advertising revenue 21.9 25.2 65.6 67.8 Founding member advertising revenue from beverage concessionaire agreements 7.4 6.7 24.0 22.7 Total revenue $ 110.1 $ 116.4 $ 304.0 $ 285.4 Deferred Revenue and Unbilled Accounts Receivable The changes in deferred revenue for the nine months ended September 27, 2018 were as follows (in millions): Nine Months Ended September 27, Balance at beginning of period $ (7.1 ) Performance obligations satisfied 7.1 New contract liabilities (6.5 ) Balance at end of period $ (6.5 ) Unbilled accounts receivable is classified as a current asset as it is expected to be billed within the next twelve months . As of September 27, 2018 and December 28, 2017 , the Company had $6.4 million and $10.6 million in unbilled accounts receivable, respectively. Practical Expedients and Exemptions The Company expenses sales commissions when incurred as the amortization period would have been one year or less. These costs are recorded within sales and marketing expenses in the Condensed Consolidated Statement of Income. The Company does not disclose the value of unsatisfied performance obligations for contracts with an original expected length of one year or less.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 27, 2018
Earnings Per Share [Abstract]
Earnings Per Share	EARNINGS PER SHARE Basic earnings per share is computed on the basis of the weighted average number of common shares outstanding. Diluted earnings per share is computed on the basis of the weighted average number of common shares outstanding plus the effect of potentially dilutive common stock options, restricted stock and restricted stock units using the treasury stock method. The components of basic and diluted income per NCM, Inc. share are as follows: Three Months Ended Nine Months Ended September 27, September 28, September 27, September 28, Net income attributable to NCM, Inc. (in millions) $ 11.2 $ 13.7 $ 13.5 $ 17.6 Net income attributable to NCM, Inc. following conversion of dilutive membership units (net of estimated taxes of $0.0, $0.0, $14.7, $0.0) $ 11.2 $ 13.7 $ 24.6 $ 17.6 Weighted average shares outstanding: Basic 76,924,983 63,993,273 76,825,828 61,637,445 Add: Dilutive effect of stock options and restricted stock 560,578 288,308 80,161,908 437,132 Diluted 77,485,561 64,281,581 156,987,736 62,074,577 Income per NCM, Inc. share: Basic $ 0.15 $ 0.21 $ 0.18 $ 0.29 Diluted $ 0.14 $ 0.21 $ 0.16 $ 0.28 The diluted weighted average shares outstanding assumes the conversion of all founding member common units to NCM, Inc. shares for the nine months ended September 27, 2018. Upon the conversion of all common units, all of consolidated NCM LLC net income would be attributable to NCM, Inc. and thus has been utilized as the numerator of the diluted EPS calculation. Consolidated NCM LLC net income has been tax effected utilizing NCM, Inc.’s effective tax rate of 55.3% for the nine months ended September 27, 2018. The effect of 80,660,822 , 90,069,881 , and 87,769,713 weighted average exchangeable NCM LLC common units held by the founding members for the three months ended September 27, 2018 and September 28, 2017 and the nine months ended September 28, 2017 , respectively, have been excluded from the calculation of diluted weighted average shares and income per NCM, Inc. share as they were antidilutive. NCM LLC common units do not participate in dividends paid on NCM, Inc.’s common stock. In addition, there were 2,016,709 , 935,912 , 2,223,440 and 433,224 stock options and non-vested (restricted) shares for the three and nine months ended September 27, 2018 and September 28, 2017 , respectively, excluded from the calculation as they were antidilutive. The Company’s non-vested (restricted) shares do not meet the definition of a participating security as the dividends will not be paid if the shares do not vest.

Intangible Assets

Intangible Assets	9 Months Ended
	Sep. 27, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	INTANGIBLE ASSETS Intangible assets consist of contractual rights to provide the Company’s services within the theaters of the founding members and network affiliates and are stated at cost, net of accumulated amortization. The Company’s intangible assets with its founding members are recorded at fair market value of NCM, Inc.’s publicly traded stock as of the date on which the common membership units were issued. The NCM LLC common membership units are fully convertible into NCM, Inc.’s common stock. In addition, the Company records intangible assets for up-front fees paid to network affiliates upon commencement of a network affiliate agreement. The Company’s intangible assets have a finite useful life and the Company amortizes the assets over the remaining useful life corresponding with the ESAs or the term of the network affiliate agreement. Common Unit Adjustments —In accordance with NCM LLC’s Common Unit Adjustment Agreement with its founding members, on an annual basis NCM LLC determines the amount of common membership units to be issued to or returned by the founding members based on theater additions or dispositions during the previous year. In addition, NCM LLC’s Common Unit Adjustment Agreement requires that a Common Unit Adjustment occur for a specific founding member if its acquisition or disposition of theaters, in a single transaction or cumulatively since the most recent Common Unit Adjustment, results in an attendance increase or decrease in excess of two percent of the annual total attendance at the prior adjustment date. During the first quarter of 2018 , NCM LLC issued 2,821,710 ( 3,736,860 issued, net of 915,150 returned) common membership units to its founding members for the rights to exclusive access to the theater screens and attendees added, net of dispositions by the founding members to NCM LLC’s network during the 2017 fiscal year and NCM LLC recorded a net intangible asset of $15.9 million during the first quarter of 2018 as a result of the Common Unit Adjustment. During the first quarter of 2017, NCM LLC issued 2,351,029 common membership units to its founding members for the rights to exclusive access to the theater screens and attendees added, net of dispositions by the founding members to NCM LLC’s network during the 2016 fiscal year. Also, during the first quarter of 2017, NCM, Inc. and NCM LLC entered into a binding Memorandum of Understanding (“MOU”) with AMC to effectuate aspects of a final judgment (the “Final Judgment”) entered into by the Department of Justice (the “DOJ”) in connection with AMC’s acquisition of Carmike Cinemas, Inc. (“Carmike”). Pursuant to the MOU, the Company issued 18,425,423 NCM LLC common membership units to AMC in respect of the annual attendance at such Carmike theaters in accordance with the Common Unit Adjustment Agreement during the first quarter of 2017. AMC’s acquisition of Carmike meets the criteria for a Common Unit Adjustment because it resulted in an extraordinary attendance increase of approximately 9.5% . Further, the Final Judgment required AMC to transfer advertising rights to 17 theaters from NCM LLC to another advertising provider. Pursuant to the MOU, AMC surrendered 4,657,673 NCM LLC common membership units in respect of such theaters. The 4,657,673 NCM LLC common membership units were comprised of (i) 2,850,453 NCM LLC common membership units pursuant to the adjustment for divested theaters in the Common Unit Adjustment Agreement and (ii) an additional 1,807,220 NCM LLC common membership units valued at $25.0 million to compensate for NCM LLC’s lost operating income for these theaters during the 10 -year term of the Final Judgment. To facilitate the theater transfers, during the first quarter of 2017, AMC and Regal entered into an amendment of its ESA with NCM LLC and Cinemark entered into a waiver of certain rights under its ESA. NCM LLC recorded a net intangible asset of $201.8 million during the first quarter of 2017 related to these transactions. Integration Payments and Other Encumbered Theater Payments —If an existing on-screen advertising agreement with an alternative provider is in place with respect to any acquired theaters ("encumbered theaters"), the founding members may elect to receive common membership units related to those encumbered theaters in connection with the Common Unit Adjustment. If the founding members make this election, then they are required to make payments on a quarterly basis in arrears in accordance with certain run-out provisions pursuant to the ESAs (“integration payments”). Because the Carmike theaters are subject to an existing on-screen advertising agreement with an alternative provider, AMC will make integration payments to NCM LLC. The integration payments will continue until the earlier of (i) the date the theaters are transferred to NCM LLC’s network or (ii) the expiration of the ESA. Integration payments are calculated based upon the advertising cash flow that the Company would have generated if it had exclusive access to sell advertising in the theaters with pre-existing advertising agreements. The ESA additionally entitles NCM LLC to payments related to the founding members’ on-screen advertising commitments under their beverage concessionaire agreements for encumbered theaters. These payments are also accounted for as a reduction to the intangible asset. During the three months ended September 27, 2018 and September 28, 2017 and the nine months ended September 27, 2018 and September 28, 2017 , the Company recorded a reduction to net intangible assets of $5.5 million , $6.9 million , $ 13.3 million and $11.6 million , respectively, related to integration and other encumbered theater payments. These payments received from AMC related to their acquisitions of theaters from Carmike and Rave Cinemas and from Cinemark related primarily to their acquisition of theaters from Rave Cinemas. During the three months ended September 27, 2018 and September 28, 2017 and the nine months ended September 27, 2018 and September 28, 2017 , AMC and Cinemark paid a total of $5.6 million , $4.6 million , $17.2 million and $6.1 million , respectively, in integration and other encumbered theater payments (as payments are made one quarter and one month in arrears, respectively). If common membership units are issued to a founding member for newly acquired theaters that are subject to an existing on-screen advertising agreement with an alternative provider, the amortization of the intangible asset commences after the existing agreement expires and NCM LLC can utilize the theaters for all of its services.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 27, 2018
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS Founding Member Transactions —In connection with NCM, Inc.’s IPO, the Company entered into several agreements to define and regulate the relationships among NCM, Inc., NCM LLC and the founding members which are outlined below. Following the sale of 100.0% of AMC's remaining NCM LLC membership units to Regal and Cinemark, AMC remains a party to the ESA, Common Unit Adjustment Agreement, TRA and certain other original agreements, and AMC will continue to participate in the annual Common Unit Adjustment, and receive TRA payments, receive theater access fees, and pay beverage revenue, among other things. AMC is not currently a member under the terms of the NCM LLC Operating Agreement and will not receive available cash distributions or allocation of earnings and losses in NCM LLC, unless it receives NCM LLC membership units pursuant to a Common Unit Adjustment. Further, the sale does not impact future integration payments and other encumbered theater payments owed to NCM LLC by AMC. AMC is considered a related party through the divestiture date (July 5, 2018) and related party transactions with AMC through this period are included within the disclosures below. The agreements with the founding members are as follows: • ESAs. Under the ESAs, NCM LLC is the exclusive provider within the United States of advertising services in the founding members’ theaters (subject to pre-existing contractual obligations and other limited exceptions for the benefit of the founding members). The advertising services include the use of the digital content network (“DCN”) equipment required to deliver the on-screen advertising and other content included in the Noovie pre-show, use of the LEN and rights to sell and display certain lobby promotions. Further, 30 to 60 seconds of advertising included in the Noovie pre-show is sold to NCM LLC’s founding members to satisfy the founding members’ on-screen advertising commitments under their beverage concessionaire agreements. In consideration for access to the founding members’ theaters, theater patrons, the network equipment required to display on-screen and LEN video advertising and the use of theaters for lobby promotions, the founding members receive a monthly theater access fee. • Common Unit Adjustment Agreement. The Common Unit Adjustment Agreement provides a mechanism for increasing or decreasing the membership units held by the founding members based on the acquisition or construction of new theaters or sale or closure of theaters that are operated by each founding member and included in NCM LLC’s network. • Tax Receivable Agreement. The tax receivable agreement provides for the effective payment by NCM, Inc. to the founding members of 90% of the amount of cash savings, if any, in U.S. federal, state and local income tax or franchise tax that is actually realized as a result of certain increases in NCM, Inc.’s proportionate share of tax basis in NCM LLC’s tangible and intangible assets resulting from the IPO and related transactions. • Software License Agreement. At the date of the Company’s IPO, NCM LLC was granted a perpetual, royalty-free license from NCM LLC’s founding members to use certain proprietary software that existed at the time for the delivery of digital advertising and other content through the DCN to screens in the U.S. NCM LLC has made improvements to this software since the IPO date and NCM LLC owns those improvements, except for improvements that were developed jointly by NCM LLC and NCM LLC’s founding members, if any. The following tables provide summaries of the transactions between the Company and the founding members (in millions): Three Months Ended Nine Months Ended Included in the Condensed Consolidated Statements of Income: (1) September 27, September 28, September 27, September 28, Revenue: Beverage concessionaire revenue (included in advertising revenue) (2) $ 5.8 $ 6.7 $ 21.8 $ 22.7 Operating expenses: Theater access fee (3) 13.4 18.1 55.5 57.4 Purchase of movie tickets and concession products and rental of theater space (included in selling and marketing costs) (4) 0.2 0.4 0.9 1.2 Purchase of movie tickets and concession products and rental of theater space (included in advertising operating costs) (4) 0.1 — 0.1 0.1 Non-operating expenses: Interest income from notes receivable (included in interest income) (5) 0.1 0.2 0.3 0.5 ________________________________________ (1) AMC is no longer considered a related party as of July 5, 2018, as described further above. As such, the figures within the table above only include related party activity with AMC for the first six months of 2018. (2) For the three and nine months ended September 27, 2018 and September 28, 2017 , two of the founding members purchased 60 seconds of on-screen advertising time and one founding member purchased 30 seconds (with all three founding members having a right to purchase up to 90 seconds ) from NCM LLC to satisfy their obligations under their beverage concessionaire agreements at a 30 seconds equivalent CPM rate specified by the ESA. (3) Comprised of payments per theater attendee and payments per digital screen with respect to the founding member theaters included in the Company’s network, including payments for access to higher quality digital cinema equipment. (4) Used primarily for marketing to NCM LLC’s advertising clients. (5) On December 26, 2013, NCM LLC sold its Fathom Events business to a newly formed limited liability company (AC JV, LLC) owned 32% by each of the founding members and 4% by NCM LLC. In consideration for the sale, NCM LLC received a total of $25.0 million in promissory notes from its founding members (one-third or approximately $8.3 million from each founding member). The notes bear interest at a fixed rate of 5.0% per annum, compounded annually. Interest and principal payments are due annually in six equal installments commencing on the first anniversary of the closing. As of Included in the Condensed Consolidated Balance Sheets: September 27, December 28, Purchase of movie tickets and concession products (included in prepaid expenses) (1) $ 0.1 $ — Current portion of notes receivable - related parties (1) (2) 2.8 4.2 Long-term portion of notes receivable - related parties (1) (2) 2.7 4.1 Interest receivable on notes receivable (included in other current assets) (1) (2) 0.3 — Common unit adjustments, net of amortization and integration payments (included in intangible assets) (3) 671.7 687.1 Current payable to founding members under tax receivable agreement (1)(4)(5) 10.1 19.6 Long-term payable to founding members under tax receivable agreement (1)(4)(5) 143.6 212.6 _________________________________ (1) AMC is no longer considered a related party as of July 5, 2018, as described further above. As such, the figures as of September 27, 2018 do not include AMC and the figures as of December 28, 2017 do include AMC. (2) Refer to the discussion of notes receivable from the founding members above. (3) Refer to Note 4— Intangible Assets for further information on common unit adjustments and integration payments. (4) The Company paid the founding members $ 17.6 million in payments pursuant to the TRA during the second quarter of 2018 which was for the 2017 tax year. The Company paid the founding members $18.8 million in 2017 which was for the 2016 tax year. (5) These balances have been recast following the adoption of the change in accounting principle discussed within Note 1— The Company . Pursuant to the terms of the NCM LLC Operating Agreement in place since the completion of the Company’s IPO, NCM LLC is required to make mandatory distributions on a proportionate basis to its members of available cash, as defined in the NCM LLC Operating Agreement, on a quarterly basis in arrears. Mandatory distributions of available cash for the three and nine months ended September 27, 2018 and September 28, 2017 were as follows (in millions): Three Months Ended Nine Months Ended September 27, September 28, September 27, September 28, AMC $ — $ 8.1 $ 2.2 $ 16.3 Cinemark 9.4 9.6 20.7 15.6 Regal 9.7 9.5 21.5 15.5 Total founding members 19.1 27.2 44.4 47.4 NCM, Inc. 18.2 25.9 42.5 39.0 Total $ 37.3 $ 53.1 $ 86.9 $ 86.4 The mandatory distributions of available cash by NCM LLC to its founding members for the three months ended September 27, 2018 of $19.1 million is included in amounts due to founding members, net on the unaudited Condensed Consolidated Balance Sheets as of September 27, 2018 and will be made in the fourth quarter of 2018. The amount presented within the tables for the distribution payable to AMC for the nine months ended September 27, 2018 represents only the distribution for the three months ended March 29, 2018 to AMC. AMC’s distribution for the three months ended June 28, 2018 was paid to Cinemark and Regal to accommodate agreements between AMC and each of Cinemark and Regal, and AMC did not receive a distribution following the divestiture date, July 5, 2018. Further, there was no distribution to AMC for the three months ended September 27, 2018 as they had no ownership in the period. The mandatory distributions to NCM, Inc. are eliminated in consolidation. Amounts due to founding members, net as of September 27, 2018 were comprised of the following (in millions): AMC Cinemark Regal Total Theater access fees, net of beverage revenues and other encumbered theater payments $ 1.3 $ 0.9 $ 1.4 $ 3.6 Distributions payable to founding members — 9.4 9.7 19.1 Integration payments due from founding members (4.8 ) (0.3 ) — (5.1 ) Cost and other reimbursement (0.1 ) — — (0.1 ) Total amounts due (from) to founding members, net $ (3.6 ) $ 10.0 $ 11.1 $ 17.5 Amounts due to founding members, net as of December 28, 2017 were comprised of the following (in millions): AMC Cinemark Regal Total Theater access fees, net of beverage revenues and other encumbered theater payments $ 1.5 $ 1.0 $ 1.5 $ 4.0 Distributions payable to founding members 10.8 13.5 13.3 37.6 Integration payments due from founding members (8.5 ) (0.4 ) — (8.9 ) Total amounts due to founding members, net $ 3.8 $ 14.1 $ 14.8 $ 32.7 During the nine months ended September 27, 2018 and September 28, 2017 , AMC received cash dividends of approximately $0.4 million and $0.1 million , respectively, on its shares of NCM, Inc. common stock held at that time. AC JV, LLC Transactions —In December 2013, NCM LLC sold its Fathom Events business to a newly formed limited liability company, AC JV, LLC, owned 32% by each of the founding members and 4% by NCM LLC. The Company accounts for its investment in AC JV, LLC under the equity method of accounting in accordance with ASC 323-30, Investments—Equity Method and Joint Ventures (“ASC 323-30”) because AC JV, LLC is a limited liability company with the characteristics of a limited partnership and ASC 323-30 requires the use of equity method accounting unless the Company’s interest is so minor that it would have virtually no influence over partnership operating and financial policies. Although NCM LLC does not have a representative on AC JV, LLC’s Board of Directors or any voting, consent or blocking rights with respect to the governance or operations of AC JV, LLC, the Company concluded that its interest was more than minor under the accounting guidance. The Company’s investment in AC JV, LLC was $1.1 million and $1.0 million as of September 27, 2018 and December 28, 2017 , respectively. Equity in earnings from AC JV, LLC for the three months ended September 27, 2018 and September 28, 2017 and the nine months ended September 27, 2018 and September 28, 2017 , were $0.0 million , $0.0 million , $0.1 million and $0.1 million , respectively, and is included in non-operating expenses in the unaudited Condensed Consolidated Statements of Income. NCM LLC also received fees from AC JV, LLC of $0.1 million , $0.1 million , $0.2 million , and $0.2 million in the three months ended September 27, 2018 and September 28, 2017 and the nine months ended September 27, 2018 and September 28, 2017 related to the transition services agreement with AC JV whereby the Company provides certain corporate overhead or creative services or use of facilities in exchange for a fee. These fees received by NCM LLC are included as an offset to network costs in the unaudited Condensed Consolidated Statements of Income.

Borrowings

Borrowings	9 Months Ended
	Sep. 27, 2018
Debt Disclosure [Abstract]
Borrowings	BORROWINGS The following table summarizes NCM LLC’s total outstanding debt as of September 27, 2018 and December 28, 2017 and the significant terms of its borrowing arrangements (in millions): Outstanding Balance as of Borrowings September 27, December 28, Maturity Date Interest Rate Senior secured notes due 2022 $ 400.0 $ 400.0 April 15, 2022 6.000 % Revolving credit facility 14.0 12.0 June 20, 2023 (1) (2 ) Term loans 269.4 270.0 June 20, 2025 (1) (2 ) Senior unsecured notes due 2026 242.3 250.0 August 15, 2026 5.750 % Total borrowings 925.7 932.0 Less: debt issuance costs related to term loans and senior notes (8.2 ) (8.7 ) Total borrowings, net 917.5 923.3 Less: current portion of debt (2.7 ) — Carrying value of long-term debt $ 914.8 $ 923.3 ___________________________________________________ (1) The maturity dates for the revolving credit facility and term loan are contingent upon the refinancing of the senior secured notes due in 2022 on or prior to October 30, 2021. If the Senior Secured Notes are not refinanced on or prior to October 30, 2021, then the revolving credit facility and term loan will instead mature on December 30, 2021. The maturity dates for the revolving credit facility and term loan as of December 28, 2017 are described below. (2) The interest rates on the revolving credit facility and term loans are described below. Senior Secured Credit Facility —On June 20, 2018, NCM LLC entered into a credit agreement to replace NCM LLC's senior secured credit facility, dated as of February 13, 2007, as amended (the “previous facility”). Consistent with the structure of the previous facility, the agreement consists of a term loan facility and a revolving credit facility. As of September 27, 2018 , NCM LLC’s senior secured credit facility consisted of a $175.0 million revolving credit facility and a $269.4 million term loan. The obligations under the senior secured credit facility are secured by a lien on substantially all of the assets of NCM LLC. During the second quarter of 2018, the Company capitalized approximately $6.5 million of debt issuance costs related to the new revolving credit facility and the term loan. The Company also recognized $1.2 million in non-operating loss related to the write-off of capitalized debt issuance costs related to the previous facility and recognition of debt issuance costs that did not qualify for capitalization. Revolving Credit Facility —The revolving credit facility portion of NCM LLC’s total borrowings is available, subject to certain conditions, for general corporate purposes of NCM LLC in the ordinary course of business and for other transactions permitted under the senior secured credit facility, and a portion is available for letters of credit. As of September 27, 2018 , NCM LLC’s total availability under the $175.0 million revolving credit facility was $156.2 million, net of $14.0 million outstanding and $4.8 million in letters of credit. The unused line fee is 0.50% per annum which is consistent with the previous facility. Borrowings under the revolving credit facility bear interest at NCM LLC’s option of either the LIBOR index plus an applicable margin ranging from 1.75% to 2.25% or the base rate plus an applicable margin ranging from 0.75% to 1.25% . The margin changed to the aforementioned range from a fixed margin of LIBOR index plus 2.00% or the base rate plus 1.00% . The applicable margin for the revolving credit facility is determined quarterly and is subject to adjustment based upon a consolidated net senior secured leverage ratio for NCM LLC (the ratio of secured funded debt less unrestricted cash and cash equivalents of up to $100.0 million , divided by Adjusted OIBDA). The revolving credit facility will mature on June 20, 2023 contingent upon the refinancing of NCM LLC’s Notes due 2022 (defined below, see “Senior Secured Notes due 2022”) on or prior to October 30, 2021. If the Notes due 2022 are not refinanced on or prior to October 30, 2021, then the revolving credit facility will instead mature on December 30, 2021. Term Loans —The interest rate on the term loans is a rate chosen at NCM LLC’s option of either the LIBOR index plus 3.00% or the base rate plus 2.00% . The rate increased from LIBOR index plus 2.75% or the base rate plus 1.75% . The weighted-average interest rate on the term loans as of September 27, 2018 was 5.2% . The term loan amortizes at a rate equal to 1.00% annually, to be paid in equal quarterly installments. As of September 27, 2018 , NCM LLC has paid principal of $ 0.6 million, reducing the outstanding balance to $269.4 million. The term loan will mature on June 20, 2025 contingent upon the refinancing of the Notes due 2022 on or prior to October 30, 2021. If the Notes due 2022 are not refinanced on or prior to October 30, 2021, then the term loan will instead mature on December 30, 2021. The senior secured credit facility contains a number of covenants and various financial ratio requirements, including, (i) a consolidated net total leverage ratio covenant of 6.25 times for each quarterly period (commencing with the quarterly period ending September 30, 2018) and (ii) with respect to the revolving credit facility, maintaining a consolidated net senior secured leverage ratio of equal to or less than 4.50 times on a quarterly basis for each quarterly period (beginning with the quarterly period ending September 30, 2018) in which a balance is outstanding on the revolving credit facility. In addition, NCM LLC is permitted to make quarterly dividend payments and other restricted payments with its available cash as long as NCM LLC’s consolidated net senior secured leverage ratio (after giving effect to any such payment) is below 5.50 times and no default or event of default has occurred and continues to occur under the senior secured credit facility. As of September 27, 2018 , NCM LLC’s consolidated net senior secured leverage ratio was 2.9 times (versus the dividend payment restriction of 5.50 times and the covenant of 4.50 times) and NCM LLC's consolidated net total leverage ratio was 4 .0 times (versus the covenant of 6.25 times). Senior Secured Notes due 2022 —On April 27, 2012, NCM LLC completed a private placement of $400.0 million in aggregate principal amount of 6.000% Senior Secured Notes (the “Notes due 2022”) for which the registered exchange offering was completed on November 26, 2012. The Notes due 2022 pay interest semi-annually in arrears on April 15 and October 15 of each year, which commenced on October 15, 2012 . The Notes due 2022 were issued at 100% of the face amount thereof and are senior secured obligations of NCM LLC, rank the same as NCM LLC’s senior secured credit facility, subject to certain exceptions, and share in the same collateral that secures NCM LLC’s obligations under the senior secured credit facility. Senior Unsecured Notes due 2026 —On August 19, 2016, NCM LLC completed a private placement of $250.0 million in aggregate principal amount of 5.750% Senior Unsecured Notes (the “Notes due 2026”) for which the registered exchange offering was completed on November 8, 2016. The Notes due 2026 pay interest semi-annually in arrears on February 15 and August 15 of each year, which commenced on February 15, 2017 . The Notes due 2026 were issued at 100% of the face amount thereof and are the senior unsecured obligations of NCM LLC. During September 2018, NCM LLC repurchased and canceled a total of $7.7 million of the Notes due 2026, reducing the principal amount to $242.3 million as of September 27, 2018 . This repurchase was treated as a partial debt extinguishment and resulted in the realization of a non-operating gain, net of written off debt issuance costs, of $0.3 million during the three and nine months ended September 27, 2018 . The Notes due 2026 will be effectively subordinated to all existing and future secured debt, including the Notes due 2022, NCM LLC’s senior secured credit facility and any future asset backed loan facility. The Notes due 2026 rank equally in right of payment with all of NCM LLC’s existing and future senior indebtedness, including the Notes due 2022, NCM LLC’s existing senior secured credit facility, and any future asset backed loan facility, in each case, without giving effect to collateral arrangements.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 27, 2018
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Uncertain Tax Positions —The Company is subject to taxation in the U.S. and various states. The Company has established a contingency reserve for material, known tax exposures. The Company’s reserve reflects management’s judgment as to the resolution of the issues involved if subject to judicial review or other settlement. While the Company believes its reserves are adequate to cover reasonably expected tax risks, there can be no assurance that, in all instances, an issue raised by a tax authority will be resolved at a financial cost that does not exceed its related reserve. With respect to the reserve, the Company’s income tax expense would include (i) any changes in tax reserves arising from material changes during the period in the facts and circumstances (i.e., new information) surrounding a tax issue and (ii) any difference from the Company’s tax position as recorded in the financial statements and the final resolution of a tax issue during the period. Such resolution could materially increase or decrease income tax expense in the unaudited Condensed Consolidated Financial Statements in future periods and could impact operating cash flows. Unrecognized tax benefits represent the aggregate tax effect of differences between tax return positions and the amounts otherwise recognized in the unaudited Condensed Consolidated Financial Statements. The total amount of unrecognized tax benefits as of September 27, 2018 and December 28, 2017 , was $0.0 million and $0.3 million , respectively, excluding accrued interest and penalties, which if recognized would affect the effective tax rate. The Company recognizes interest and penalties with respect to unrecognized tax benefits in income tax expense in the unaudited Condensed Consolidated Statements of Income and records the liability in income taxes payable in the unaudited Condensed Consolidated Balance Sheets. The Company recognized an inconsequential amount in interest and penalties during the three and nine months ended September 27, 2018 and September 28, 2017 , respectively. The reserve decreased by $0.3 million to $0.0 million as of September 27, 2018 due to the expiration of certain statutes of limitations. Tax Reform —On December 22, 2017, the U.S. government enacted the Tax Cuts and Jobs Act of 2017 (the “Tax Act”) which makes broad and complex changes to the U.S. tax code that will affect the Company’s fiscal year ending December 27, 2018, including, but not limited to, (1) reducing the U.S. federal corporate tax rate, (2) allowing full expensing of qualified property, (3) creating a new limitation on deductible interest expense, (4) changing rules related to uses and limitations of net operating loss carryforwards created in tax years beginning after December 31, 2017, and (5) limiting the amount of compensation that can be deducted for highly compensated officers by terminating the exclusion of performance-based compensation from the $1 million per employee, per year limitation. Following the enactment of the Tax Act, the SEC staff issued SAB 118 which provides guidance on accounting for the tax effects of the Tax Act. SAB 118 provides a measurement period that should not extend beyond one year from the Tax Act enactment date for companies to complete the accounting under ASC 740. While the Company is able to make a reasonable estimate of the impact of the reduction in the corporate tax rate, the Company’s accounting for various elements of the Tax Act may be affected by other related analysis including, but not limited to, exclusion of performance-based compensation in excess of the threshold, bonus depreciation that will allow for immediate expensing of qualified property and the state tax effect of adjustments made to federal temporary differences. As such, the impact of the Tax Act is an estimate pending further information and the analysis noted. The Company expects to finalize these estimates by the end of its 2018 fiscal year. Tax Receivable Agreement —Subsequent to the issuance of the December 28, 2017 financial statements, an immaterial error was identified within the payable to the founding members under the TRA related to the Company's application of tax reform and the federal tax rate applied to the 2018 TRA payment for the 2017 fiscal year. In the nine months ended September 27, 2018 , the Company recorded a loss within the gain (loss) on re-measurement of the payable to founding members under the TRA and a corresponding increase in the payable to founding members under the TRA of $8.6 million as well as an increase to deferred tax assets and a decrease to deferred tax expense of approximately $2.2 million related to the correction of the immaterial error. The error does not impact the amount of cash TRA payments made to the founding members for any historical period, the timing of those payments, or future calculations of payments due under the TRA. Changes in the Company’s Effective Tax Rate —The Company’s effective tax rate increased from 5.4% for the nine months ended September 28, 2017 to 55.3% for the nine months ended September 27, 2018 primarily due to tax expense recorded in the nine months ended September 27, 2018 related to the net decrease in the Company's deferred rate due to a change in state tax law regarding income sourcing and the permanent difference between the allowable deduction for stock based compensation for tax purposes (valued based upon the stock price at vesting) and book purposes (valued based upon the stock price at grant) due to the decline in the Company’s stock price subsequent to the grant of the shares, partially offset by revised state tax apportionment rates following the completion of the Company's 2017 tax return. This rate increase was partially offset by a 13.5% decrease in the Company’s current rate following the enactment of the Tax Cuts and Jobs Act by the US government on December 22, 2017. The Company's current blended state and federal rate is 25.6% as of September 27, 2018 as compared to 38.6% as of September 28, 2017 .

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 27, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Legal Actions —The Company is subject to claims and legal actions in the ordinary course of business. The Company believes such claims will not have a material effect individually and in the aggregate on its financial position, results of operations or cash flows. Minimum Revenue Guarantees ―As part of the network affiliate agreements entered into in the ordinary course of business under which the Company sells advertising for display in various network affiliate theater chains, the Company has agreed to certain minimum revenue guarantees on a per attendee basis. If a network affiliate achieves the attendance set forth in their respective agreement, the Company has guaranteed minimum revenue for the network affiliate per attendee if such amount paid under the revenue share arrangement is less than its guaranteed amount. As of September 27, 2018 , the maximum potential amount of future payments the Company could be required to make pursuant to the minimum revenue guarantees is $76.7 million over the remaining terms of the network affiliate agreements. These minimum guarantees relate to various affiliate agreements ranging in term from one to twenty years , prior to any renewal periods of which some are at the option of the Company. During the three and nine months ended September 27, 2018 , the Company paid $0.7 million related to these minimum guarantees. The Company made no payments during the three and nine months ended September 28, 2017 . Additionally, the Company has accrued $0.3 million and $0.0 million related to affiliate agreements with guaranteed minimums in excess of the revenue share agreement as of September 27, 2018 and December 28, 2017, respectively. Theater Access Fee Guarantees —In consideration for NCM LLC’s access to the founding members’ theater attendees for on-screen advertising and use of lobbies and other space within the founding members’ theaters for the LEN and lobby promotions, the founding members receive a monthly theater access fee under the ESAs. The theater access fee is composed of a fixed payment per patron, a fixed payment per digital screen (connected to the DCN) and a fee for access to higher quality digital cinema equipment. The payment per theater patron increases by 8% every five years , with this increase last occurring in fiscal year 2017, and the payment per digital screen and for digital cinema equipment increasing annually by 5% . The theater access fee paid in the aggregate to all founding members cannot be less than 12% of NCM LLC’s aggregate advertising revenue (as defined in the ESA), or it will be adjusted upward to reach this minimum payment. As of September 27, 2018 and December 28, 2017 , the Company had no liabilities recorded for the minimum payment, as the theater access fee was in excess of the minimum.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 27, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS Fair value is the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement: Level 1 —Quoted prices in active markets for identical assets or liabilities. Level 2 —Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 —Inputs that are generally unobservable and typically reflect management’s estimate of assumptions that market participants would use in pricing the asset or liability. Non-Recurring Measurements —Certain assets are measured at fair value on a non-recurring basis. These assets are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances. These assets include long-lived assets, intangible assets, other investments, notes receivable and borrowings. Long-Lived Assets, Intangible Assets, Other Investments and Notes Receivable —The Company regularly reviews long-lived assets (primarily property, plant and equipment), intangible assets, investments accounted for under the cost or equity method and notes receivable for impairment whenever certain qualitative factors, events or changes in circumstances indicate that the carrying amounts of the assets may not be fully recoverable. When the estimated fair value is determined to be lower than the carrying value of the asset, an impairment charge is recorded to write the asset down to its estimated fair value. Other investments consisted of the following (in millions): As of September 27, December 28, Investment in AC JV, LLC (1) $ 1.1 $ 1.0 Other investments (2) 2.1 2.5 Total $ 3.2 $ 3.5 _______________________________________ (1) Refer to Note 5— Related Party Transactions . This investment is accounted for utilizing the equity method. (2) The Company received equity securities in privately held companies as consideration for a portion of advertising contracts. The equity securities are accounted for at adjusted cost in accordance with the practicability exception under ASU 2016-1 and represent an ownership of less than 20% . The Company does not exert significant influence on these companies’ operating or financial activities. During the three months ended September 27, 2018 and September 28, 2017 and nine months ended September 27, 2018 and September 28, 2017 , the Company recorded impairment charges of $0.0 million , $0.0 million , $0.4 million and $3.1 million , respectively, on certain of its investments due to a significant deterioration in the business prospects of the investee or new information regarding the fair value of the investee, which brought the total remaining value of the respective impaired investments to $0.0 million as of September 27, 2018 and $0.1 million as of September 28, 2017 . As of September 27, 2018 , no other observable price changes or impairments have been recorded as a result of the Company’s qualitative assessment of identified events or changes in the circumstances of the remaining investments. The investment in AC JV, LLC was initially valued using comparative market multiples. The other investments were recorded based upon the fair value of the services provided in exchange for the investment. As the inputs to the determination of fair value are based upon non-identical assets and use significant unobservable inputs, they have been classified as Level 3 in the fair value hierarchy. As of September 27, 2018 and December 28, 2017 , the Company had notes receivable totaling $8.3 million and $8.3 million , respectively, from its founding members related to the sale of Fathom Events, as described in Note 5— Related Party Transactions . These notes were initially valued using comparative market multiples. There were no identified events or changes in circumstances that had a significant adverse effect on the fair value of the notes receivable. The notes are classified as Level 3 in the fair value hierarchy as the inputs to the determination of fair value are based upon non-identical assets and use significant unobservable inputs. Borrowings —The carrying amount of the revolving credit facility is considered a reasonable estimate of fair value due to its floating-rate terms. The estimated fair values of the Company’s financial instruments where carrying values do not approximate fair value were as follows (in millions): As of September 27, As of December 28, Carrying Value Fair Value (1) Carrying Value Fair Value (1) Term loan $ 269.4 $ 270.2 $ 270.0 $ 270.8 Notes due 2022 400.0 406.5 400.0 407.3 Notes due 2026 242.3 239.0 250.0 235.0 ____________________________________________ (1) If the Company were to measure the borrowings in the above table at fair value on the balance sheet they would be classified as Level 2 based upon the inputs utilized. Recurring Measurements —The fair values of the Company’s assets and liabilities measured on a recurring basis pursuant to ASC 820-10, Fair Value Measurements and Disclosures are as follows (in millions): Fair Value Measurements at Reporting Date Using Fair Value as of September 27, Quoted Prices in Active Markets for Identical Assets Significant Other Significant Unobservable Inputs ASSETS: Cash equivalents (1) $ 12.7 $ 10.2 $ 2.5 $ — Short-term marketable securities (2) 29.2 — 29.2 — Long-term marketable securities (2) 10.2 — 10.2 — Total assets $ 52.1 $ 10.2 $ 41.9 $ — Fair Value Measurements at Reporting Date Using Fair Value as of December 28, Quoted Prices in Active Markets for Identical Assets Significant Other Significant Unobservable Inputs ASSETS: Cash equivalents (1) $ 12.2 $ 8.2 $ 4.0 $ — Short-term marketable securities (2) 13.1 — 13.1 — Long-term marketable securities (2) 16.2 — 16.2 — Total assets $ 41.5 $ 8.2 $ 33.3 $ — ___________________________________________ (1) Cash Equivalents —The Company’s cash equivalents are carried at estimated fair value. Cash equivalents consist of money market accounts which the Company has classified as Level 1 given the active market for these accounts and commercial paper with original maturities of three months or less, which are classified as Level 2 and are valued as described below. (2) Short-Term and Long-Term Marketable Securities —The carrying amount and fair value of the marketable securities are equivalent since the Company accounts for these instruments at fair value. The Company’s government agency bonds, commercial paper and certificates of deposit are valued using third party broker quotes. The value of the Company’s government agency bonds is derived from quoted market information. The inputs in the valuation are classified as Level 1 if there is an active market for these securities; however, if an active market does not exist, the inputs are recorded at a lower level in the fair value hierarchy. The value of commercial paper and certificates of deposit is derived from pricing models using inputs based upon market information, including contractual terms, market prices and yield curves. The inputs to the valuation pricing models are observable in the market, and as such are generally classified as Level 2 in the fair value hierarchy. For the three and nine months ended September 27, 2018 and September 28, 2017 , there was an inconsequential amount of net realized gains (losses) recognized in interest income and an inconsequential amount of net unrealized holding gains (losses) included in other comprehensive income. Original cost of short-term marketable securities is based on the specific identification method. As of September 27, 2018 and December 28, 2017 , there was $0.2 million and $0.2 million , respectively, of gross unrealized losses related to individual securities of $11.7 million and $8.2 million , respectively, that had been in a continuous loss position for 12 months or longer. The Company has not recorded an impairment because it has the intention and ability to hold these securities to maturity. The amortized cost basis, aggregate fair value and maturities of the marketable securities the Company held as of September 27, 2018 and December 28, 2017 were as follows: As of September 27, 2018 Amortized Cost Aggregate Fair Maturities (1) MARKETABLE SECURITIES: Short-term municipal bonds $ 0.5 $ 0.5 0.4 Short-term U.S. government agency bonds 5.4 5.4 0.6 Short-term commercial paper: Financial 5.8 5.8 0.2 Industrial 15.0 14.9 0.2 Short-term certificates of deposit 2.6 2.6 0.5 Total short-term marketable securities $ 29.3 $ 29.2 Long-term municipal bonds 1.2 1.3 1.8 Long-term U.S. government agency bonds 6.5 6.3 2.3 Long-term certificates of deposit 2.7 2.6 1.6 Total long-term marketable securities $ 10.4 $ 10.2 Total marketable securities $ 39.7 $ 39.4 As of December 28, 2017 Amortized Cost Aggregate Fair Maturities (1) MARKETABLE SECURITIES: Short-term U.S. government agency bonds 2.3 2.2 0.9 Short-term certificates of deposit 0.9 0.9 0.8 Short-term commercial paper: Financial 6.0 6.0 0.3 Industrial 4.0 4.0 0.3 Total short-term marketable securities 13.2 13.1 Long-term municipal bonds 1.9 1.9 2.1 Long-term U.S. government agency bonds 10.4 10.2 2.5 Long-term certificates of deposit 4.1 4.1 1.8 Total long-term marketable securities 16.4 16.2 Total marketable securities $ 29.6 $ 29.3 ___________________________________ (1) Maturities —Securities available for sale include obligations with various contractual maturity dates some of which are greater than one year. The Company considers the securities to be liquid and convertible to cash within 30 days.

Subsequent Event

Subsequent Event	9 Months Ended
	Sep. 27, 2018
Subsequent Events [Abstract]
Subsequent Event	SUBSEQUENT EVENTS On November 2, 2018, Andrew J. England stepped down as Chief Executive Officer and as a member of the Board of Directors (the "Board") of the Company, effective immediately. In connection with Mr. England’s departure, the Company announced that it has retained an executive search firm to initiate a search for a new CEO to succeed Mr. England. Clifford E. Marks, the Company’s President, will serve as Interim Chief Executive Officer until the Board appoints a permanent CEO. Mr. Marks will continue to serve as President of the Company. The Company intends to treat Mr. England’s termination of employment as an “Involuntary Termination” under his employment agreement with the Company, as described in the Company’s 2018 definitive proxy statement under the caption “Potential Payments Upon Termination or Change in Control - Andrew J. England - Without Cause or For Good Reason or Expiration of Agreement.” Mr. England’s termination of employment is not the result of a violation of any company policy. On November 5, 2018 , the Company declared a cash dividend of $0.17 per share (approximately $13.1 million ) on each share of the Company’s common stock (not including outstanding restricted stock which will accrue dividends until the shares vest) to stockholders of record on November 15, 2018 to be paid on November 30, 2018 .

The Company (Policies)

The Company (Policies)	9 Months Ended
	Sep. 27, 2018
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The Company has prepared the unaudited Condensed Consolidated Financial Statements and related notes of NCM, Inc. in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, certain information and footnote disclosures typically included in an annual report have been condensed or omitted for this quarterly report. The balance sheet as of December 28, 2017 is derived from the audited financial statements of NCM, Inc. Therefore, the unaudited Condensed Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and notes thereto included in the Company’s annual report on Form 10-K filed for the fiscal year ended December 28, 2017 . In the opinion of management, all adjustments necessary to present fairly in all material respects the financial position, results of operations and cash flows for all periods presented have been made. The Company’s business is seasonal and for this and other reasons operating results for interim periods may not be indicative of the Company’s full year results or future performance. As a result of the various related party agreements discussed in Note 5— Related Party Transactions , the operating results as presented are not necessarily indicative of the results that might have occurred if all agreements were with non-related third parties. The Company manages its business under one reportable segment of advertising.
Estimates	Estimates —The preparation of the financial statements in conformity with 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 the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates include those related to the reserve for uncollectible accounts receivable, share-based compensation and income taxes. Actual results could differ from those estimates.
Revenue Recognition	Revenue Recognition —The Company derives revenue principally from the advertising business, which includes on-screen and lobby network (LEN) advertising and lobby promotions and advertising on websites and mobile applications owned by NCM LLC and other companies. Revenue is recognized over time as the customer receives the benefits provided by NCM LLC’s advertising services and the Company has the right to payment for performance to date. The Company considers the terms of each arrangement to determine the appropriate accounting treatment as more fully discussed in Note 2 - Revenue from Contracts with Customers .
Concentration of Credit Risk and Significant Customers	Concentration of Credit Risk and Significant Customers —Bad debts are provided for using the allowance for doubtful accounts method based on historical experience and management’s evaluation of outstanding receivables at the end of the period. Receivables are written off when management determines amounts are uncollectible. Trade accounts receivable are uncollateralized and represent a large number of geographically dispersed debtors. The collectability risk with respect to national and regional advertising is reduced by transacting with founding members or large, national advertising agencies that have strong reputations in the advertising industry and clients with stable financial positions. The Company has smaller contracts with thousands of local clients that are not individually significant. As of September 27, 2018 and December 28, 2017 , there were no advertising agency groups or individual customers through which the Company sources national advertising revenue representing more than 10% of the Company’s outstanding gross receivable balance. During the three and nine months ended September 27, 2018 and September 28, 2017 , the Company had no customers that accounted for more than 10% of revenue.
Share-Based Compensation	Share-Based Compensation —The Company has issued stock options and restricted stock to certain employees and restricted stock units to its independent directors. The Company has not granted stock options since 2012. In 2017 and 2018, the restricted stock grants for Company management vest upon the achievement of Company performance measures and/or service conditions, while non-management grants vest only upon the achievement of service conditions. Compensation expense of restricted stock that vests upon the achievement of Company performance measures is based on management’s financial projections and the probability of achieving the projections, which require considerable judgment. A cumulative adjustment is recorded to share-based compensation expense in periods that management changes its estimate of the number of shares of restricted stock expected to vest. Ultimately, the Company adjusts the expense recognized to reflect the actual vested shares following the resolution of the performance conditions. Dividends are accrued when declared on unvested restricted stock that is expected to vest and are only paid with respect to shares that actually vest. During the three and nine months ended September 27, 2018 and September 28, 2017 , 21,807 , 20,204 , 997,403 and 1,028,322 shares of restricted stock and restricted stock units vested, respectively. During the three and nine months ended September 27, 2018 , and September 28, 2017 , 0 , 0 , 0 , and 58,450 stock options were exercised at a weighted average exercise price of $0.00 , $0.00 , $ 0.00 and $ 11.04 per share.
Consolidation	Consolidation —NCM, Inc. consolidates the accounts of NCM LLC under the provisions of ASC 810, Consolidation (“ASC 810”). The following table presents the changes in NCM, Inc.’s equity resulting from net income attributable to NCM, Inc. and transfers to or from noncontrolling interests (in millions): Nine Months Ended September 27, September 28, Net income attributable to NCM, Inc. $ 13.5 $ 17.6 NCM LLC equity issued for purchase of intangible asset 7.7 78.8 Income tax and other impacts of subsidiary ownership changes 6.9 6.1 NCM, Inc. investment in NCM LLC — (77.8 ) Issuance of shares — 77.6 Change from net income attributable to NCM, Inc. and transfers from noncontrolling interests $ 28.1 $ 102.3
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements During the first quarter of 2018, the Company adopted Accounting Standards Update 2014-9, Revenue from Contracts with Customers (Topic 606) (“ASU 2014-9”) using the modified retrospective transition method. The Company identified the same performance obligations under ASU 2014-9 as compared with deliverables and separate units of account previously identified. ASU 2014-9 impacted the accounting for barter transactions where the Company exchanges advertising time for products and services used principally for selling and marketing activities. The Company historically recognized revenue for these transactions at the estimated fair value of the advertising exchanged based on the fair value received for similar advertising from cash paying customers. In accordance with the new guidance, the Company will recognize revenue for these transactions based upon the fair value of the products and services received, rather than the value of the advertising provided. The modified retrospective transition method allows entities to apply the new revenue standard prospectively and record a cumulative-effect adjustment to the opening balance of retained earnings in the period the new revenue standard is first applied. Upon the adoption of ASU 2014-9 on December 29, 2017, the Company recorded a $0.2 million cumulative-effect adjustment related to the change in accounting for barter transactions on contracts that are not completed as of December 29, 2017 in the unaudited Consolidated Balance Sheet. The Company’s adoption of ASU 2014-9 did not have a material impact on the unaudited Condensed Consolidated Financial Statements. The Company has incorporated additional disclosures in Note 2— Revenue from Contracts with Customers to the unaudited Condensed Consolidated Financial Statements to comply with ASU 2014-9. During the first quarter of 2018, the Company adopted Accounting Standards Update 2016-1, Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-1”), which requires equity investments that are not accounted for under the equity method of accounting to be measured at fair value with changes recognized in earnings (rather than reported through other comprehensive income) and updates certain presentation and disclosure requirements. In February 2018, the FASB issued Accounting Standards Update 2018-3, Technical Corrections and Improvements to Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2018-3”). These amendments clarify the guidance on certain topics referred to in ASU 2016-1. The Company has incorporated changes to the methodology utilized to value the Company’s investments and changes to disclosures in its notes to the unaudited Condensed Consolidated Financial Statements to comply with ASU 2016-1. During the first quarter of 2018, the Company adopted Accounting Standards Update 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (“ASU 2016-15”) on a retrospective basis. ASU 2016-15 provides guidance on certain cash receipts and cash payments presented and classified in the statement of cash flows. The adoption of ASU 2016-15 did not have a material impact on the unaudited Condensed Consolidated Financial Statements or notes thereto. During the first quarter of 2018, the Company adopted Accounting Standards Update 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (“ASU 2016-18”) on a retrospective basis. ASU 2016-18 requires that the reconciliation of the beginning-of-period and end-of-period amounts shown in the statement of cash flows include restricted cash and restricted cash equivalents. The Company has adjusted the Condensed Consolidated Statement of Cash Flow for the nine months ended September 28, 2017 to include the restricted cash balance within the aforementioned captions. The adoption of ASU 2016-18 had no other impact on the unaudited Condensed Consolidated Financial Statements or notes thereto. In July 2018, the FASB issued Accounting Standards Update 2018-9, Codification Improvements ("ASU 2018-9”), which makes minor amendments to the codification in order to clarify, correct errors in, eliminate inconsistencies and provide clarifications in current guidance. The ASU amends Subtopics 470-50, Debt-Modifications and Extinguishments and 718-740, Compensation-Stock Compensation-Income Taxes and is effective immediately. The adoption of ASU 2018-9 did not have a material impact on the unaudited Condensed Consolidated Financial Statements or notes thereto.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In February 2016, the FASB issued Accounting Standards Update 2016-2, Leases (Topic 842) (“ASU 2016-2”). ASU 2016-2 establishes a right-of-use (“ROU”) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than twelve months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The new standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Under the original standard, a modified retrospective transition approach was required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. In July 2018, the FASB issued Accounting Standards Update 2018-11 which allows companies to elect the “Comparatives Under 840” option where only the current period financial statements and related disclosures are presented in accordance with the new standard. The Company is still evaluating which transition approach to apply upon adoption. The Company expects to utilize the following practical expedients: (i) not being required to separate lease and nonlease components when accounting for the lease; and (ii) not accounting for short-term leases under the new standard. The Company is still evaluating whether the adoption of ASU 2016-2 will have a material impact on the unaudited Condensed Consolidated Financial Statements. The Company will adopt the standard and its provisions effective December 28, 2018 and will incorporate additional disclosures in its notes to its unaudited Condensed Consolidated Financial Statements to comply with ASU 2016-2 effective in the first quarter of 2019. The Company has designed and will implement changes to certain processes and internal controls upon the adoption of ASU 2016-2. In June 2016, the FASB issued Accounting Standards Update 2016-13, Financial Instruments – Credit Losses (Topic 326), Measurement of Credit Losses on Financial Statements (“ASU 2016-13”), which requires a financial asset (or group of financial assets) measured at amortized cost basis to be presented at the net amount expected to be collected. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset(s) to present the net carrying value at the amount expected to be collected on the financial asset. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, with early adoption permitted and is to be adopted on a modified retrospective basis. The Company is currently evaluating the impact that adopting this guidance will have on the unaudited Condensed Consolidated Financial Statements or notes thereto. In March 2018, the FASB issued Accounting Standards Update 2018-4, Investments – Debt Securities (Topic 320) and Regulated Operations (Topic 980): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 117 and SEC Release No. 33-9273 (“ASU 2018-4”), which amends and supersedes various paragraphs that contain SEC guidance in ASC 320, Investments-Debt Securities and ASC 980, Regulated Operations . The Company is currently evaluating the impact that adopting this guidance will have on the unaudited Condensed Consolidated Financial Statements or notes thereto. In June 2018, the FASB issued Accounting Standards Update 2018-7, Compensation – Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting (“ASU 2018-7”), which amends Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees. ASU 2018-7 is effective for fiscal years beginning December 15, 2018, with early adoption permitted. The Company is currently evaluating the impact that adopting this guidance will have on the unaudited Condensed Consolidated Financial Statements or notes thereto. In August 2018, the FASB issued Accounting Standards Update 2018-13, Fair Value Measurement (Topic 820) : Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”), which modifies the disclosure requirements on fair value measurements. ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, with partial early adoption permitted for eliminated disclosures. The method of adoption varies by the disclosure. The Company is currently evaluating the impact that adopting this guidance will have on the unaudited Condensed Consolidated Financial Statements or notes thereto. In August 2018, the FASB issued ASU 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract ("ASU 2018-15"), which clarifies the accounting for implementation costs in cloud computing arrangements. ASU 2018-15 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating the impact that adopting this guidance will have on the unaudited Condensed Consolidated Financial Statements or notes thereto. In August 2018, the SEC issued a final rule amending certain disclosure requirements deemed by the commission to be redundant, duplicative, overlapping, outdated or superseded. The rule also added requirements to disclose (1) the changes in each caption of stockholders’ equity and non-controlling interests for the current and comparative year-to-date periods, with subtotals for each interim period and (2) the amount of dividends per share for each class of shares. The Company believes that adopting the guidance will result in changes to the presentation of the unaudited Condensed Consolidated Statement of Equity as a quarter to date equity rollforward is now also required for the current and comparable period. The amended disclosure requirements are effective the first quarter beginning after the effective date of the rule. The Company will adopt the rule in the first quarter of 2019. The Company has considered all other recently issued accounting pronouncements and does not believe the adoption of such pronouncements will have a material impact on its unaudited Condensed Consolidated Financial Statements or notes thereto.
Change in Accounting Principle and Correction of an Error	Change in Accounting Principle and Correction of an Error During the first quarter of 2018, the Company changed its method of accounting for its payable to founding members under the TRA, which requires the Company to pay to the founding members 90% of the expected cash savings of NCM, Inc. from federal, state, and local jurisdictions upon realization of amortization and other deductions specified under the TRA. At inception of the TRA in 2007, the payable was recorded at fair value by discounting the amounts expected to be payable to founding members under the TRA at the Company’s weighted average cost of capital. The Company then remeasured the present value of the payable to founding members under the TRA each subsequent reporting period. As a result of the change in accounting principle, the payable is now stated at the undiscounted amount of all expected future payments under the agreement. The Company believes that the undiscounted presentation is preferable because it is consistent with the predominant accounting method used by other companies with such TRA agreements and is more consistent with the undiscounted approach used for the corresponding deferred tax assets that are subject to the TRA. Accordingly, the Condensed Consolidated Balance Sheets, Condensed Consolidated Statements of Income, Condensed Statements of Equity (Deficit) and Condensed Consolidated Statement of Cash Flows for the respective prior periods have been recast to reflect retrospective application of the change in accounting principle. Since this change in accounting principle dates back to the Company’s initial public offering ("IPO") in 2007, the Company has recorded the cumulative effect for the change in accounting principle to beginning retained earnings as of December 29, 2016. Additionally, subsequent to the issuance of the Company’s Consolidated Financial Statements for the year ended December 29, 2016 , the Company identified an immaterial non-cash error related to the accounting under ASC 740 for the Company’s payable to founding members under the TRA which was corrected within the Company’s Form 10-K for the period ending December 28, 2017 . As a result of the error, the liability under the TRA (including the historical discount on such payable) and related accounts for the year ended December 29, 2016 were restated from the amount previously reported to reflect the additional amounts that will be payable under the TRA upon settlement of all expected future payments to the founding members. Further, the deferred tax liability recorded at the IPO related to the discounted TRA liability was reversed to reflect all applicable basis differences related to the TRA. The impact of the error on the Condensed Consolidated Statements of Income for the three and nine months ended September 28, 2017 is presented within the tables below and the impact of the error on the Condensed Consolidated Statement of Cash Flows and the Condensed Consolidated Statement of Equity for the nine months ended September 28, 2017 is stated below. The unaudited Condensed Consolidated Financial Statements and corresponding footnotes for the three and nine months ended September 28, 2017 have been restated from the amounts previously reported to reflect the correction of this error as shown within the tables below. The following table presents the effect of the change in accounting principle to the December 29, 2016 beginning retained earnings balance and additional paid in capital (deficit) ("APIC") balance (in millions): Beginning retained earnings (distributions in excess of earnings), as of December 29, 2016 – as previously reported $ (248.3 ) Cumulative effect for change in accounting principle $ 117.6 Beginning retained earnings (distributions in excess of earnings), as of December 29, 2016 – as adjusted $ (130.7 ) Beginning additional paid in capital (deficit), as of December 29, 2016 – as previously reported $ (110.5 ) Cumulative effect for change in accounting principle $ (233.1 ) Beginning additional paid in capital (deficit), as of December 29, 2016 – as adjusted $ (343.6 ) The following table presents the effects of the change in accounting principle to the Condensed Consolidated Balance Sheet (in millions): As of December 28, 2017 As Reported Change in Accounting Principle As Adjusted Long-term deferred tax assets, net of valuation allowance of $98.1 $ 161.0 $ 25.0 $ 186.0 TOTAL ASSETS 1,148.1 25.0 1,173.1 Long-term payable to founding members under tax receivable agreement 114.0 98.6 212.6 Total liabilities 1,149.3 98.6 1,247.9 Additional paid in capital (deficit) 13.8 (246.9 ) (233.1 ) Retained earnings (distributions in excess of earnings) (303.5 ) 173.3 (130.2 ) Total equity/(deficit) (1.2 ) (73.6 ) (74.8 ) TOTAL LIABILITIES AND EQUITY/DEFICIT 1,148.1 25.0 1,173.1 The following tables present the effects of the correction of the prior period error and change in accounting principle to the Condensed Consolidated Statement of Income (in millions, except for per share data): Three Months Ended September 28, 2017 As Reported Correction of an Error As Corrected Change in Accounting Principle As Corrected and Adjusted Accretion of interest on the discounted payable to founding members under tax receivable agreement $ 3.2 $ 1.4 $ 4.6 $ (4.6 ) $ — Total non-operating expenses $ 16.1 $ 1.4 $ 17.5 $ (4.6 ) $ 12.9 INCOME BEFORE INCOME TAXES $ 34.2 $ (1.4 ) $ 32.8 $ 4.6 $ 37.4 Income tax expense $ 2.3 $ 1.0 $ 3.3 $ (2.1 ) $ 1.2 CONSOLIDATED NET INCOME $ 31.9 $ (2.4 ) $ 29.5 $ 6.7 $ 36.2 NET INCOME ATTRIBUTABLE TO NCM, INC. $ 9.4 $ (2.4 ) $ 7.0 $ 6.7 $ 13.7 NET INCOME PER NCM, INC. COMMON SHARE: Basic $ 0.15 $ (0.04 ) $ 0.11 $ 0.10 $ 0.21 Diluted $ 0.15 $ (0.04 ) $ 0.11 $ 0.10 $ 0.21 Nine Months Ended September 28, 2017 As Reported Correction of an Error As Corrected Change in Accounting Principle As Corrected and Adjusted Accretion of interest on the discounted payable to founding members under tax receivable agreement $ 9.5 $ 4.2 $ 13.7 $ (13.7 ) $ — Gain on re-measurement of the payable to founding members under the tax receivable agreement $ — $ (5.6 ) $ (5.6 ) $ 5.0 $ (0.6 ) Total non-operating expenses $ 47.8 $ (1.4 ) $ 46.4 $ (8.7 ) $ 37.7 INCOME BEFORE INCOME TAXES $ 35.9 $ 1.4 $ 37.3 $ 8.7 $ 46.0 Income tax expense (benefit) $ 2.6 $ 3.1 $ 5.7 $ (4.7 ) $ 1.0 CONSOLIDATED NET INCOME $ 33.3 $ (1.7 ) $ 31.6 $ 13.4 $ 45.0 NET INCOME ATTRIBUTABLE TO NCM, INC. $ 5.9 $ (1.7 ) $ 4.2 $ 13.4 $ 17.6 NET INCOME PER NCM, INC. COMMON SHARE: Basic $ 0.10 $ (0.03 ) $ 0.07 $ 0.22 $ 0.29 Diluted $ 0.10 $ (0.03 ) $ 0.07 $ 0.21 $ 0.28 The following table presents the effects of the correction of the prior period error and change in accounting principle to the Condensed Consolidated Statement of Cash Flow (in millions): Nine Months Ended September 28, 2017 As Reported Correction of an Error As Corrected Change in Accounting Principle As Corrected and Adjusted Consolidated net income $ 33.3 $ (1.7 ) $ 31.6 $ 13.4 $ 45.0 Adjustments to reconcile consolidated net income to net cash provided by operating activities: Deferred income tax expense $ 4.1 $ 3.0 $ 7.1 $ (4.6 ) $ 2.5 Accretion of interest on the discounted payable to founding members under tax receivable agreement $ 9.5 $ 4.2 $ 13.7 $ (13.7 ) $ — Non-cash gain on re-measurement of the payable to founding members under tax receivable agreement $ — $ (5.6 ) $ (5.6 ) $ 5.0 $ (0.6 ) Net cash provided by operating activities $ 104.0 $ — $ 104.0 $ — $ 104.0 The correction of the error within the unaudited Condensed Consolidated Statement of Equity resulted in an increase of $1.9 million within the activity and an increase of $99.1 million in the ending balance of the additional paid in capital (deficit) balance for the nine months ended September 28, 2017 . The change in accounting principle resulted in a decrease of $12.0 million within the activity and a decrease of $245.2 million in the ending balance of the additional paid in capital (deficit) balance for the nine months ended September 28, 2017 . These adjustments were within the ‘Income tax and other impacts of NCM LLC ownership changes’ line of the Condensed Consolidated Statements of Equity included herein. The change in accounting principle resulted in a $0.5 million and $4.9 million increase in net income and a $0.01 and $0.06 increase in net income per share for the three and nine months ended September 27, 2018 .

The Company (Tables)

The Company (Tables)	9 Months Ended
	Sep. 27, 2018
Accounting Policies [Abstract]
Changes In Equity	The following table presents the changes in NCM, Inc.’s equity resulting from net income attributable to NCM, Inc. and transfers to or from noncontrolling interests (in millions): Nine Months Ended September 27, September 28, Net income attributable to NCM, Inc. $ 13.5 $ 17.6 NCM LLC equity issued for purchase of intangible asset 7.7 78.8 Income tax and other impacts of subsidiary ownership changes 6.9 6.1 NCM, Inc. investment in NCM LLC — (77.8 ) Issuance of shares — 77.6 Change from net income attributable to NCM, Inc. and transfers from noncontrolling interests $ 28.1 $ 102.3
Effect of Change in Accounting Principle	The following table presents the effect of the change in accounting principle to the December 29, 2016 beginning retained earnings balance and additional paid in capital (deficit) ("APIC") balance (in millions): Beginning retained earnings (distributions in excess of earnings), as of December 29, 2016 – as previously reported $ (248.3 ) Cumulative effect for change in accounting principle $ 117.6 Beginning retained earnings (distributions in excess of earnings), as of December 29, 2016 – as adjusted $ (130.7 ) Beginning additional paid in capital (deficit), as of December 29, 2016 – as previously reported $ (110.5 ) Cumulative effect for change in accounting principle $ (233.1 ) Beginning additional paid in capital (deficit), as of December 29, 2016 – as adjusted $ (343.6 ) The following table presents the effects of the change in accounting principle to the Condensed Consolidated Balance Sheet (in millions): As of December 28, 2017 As Reported Change in Accounting Principle As Adjusted Long-term deferred tax assets, net of valuation allowance of $98.1 $ 161.0 $ 25.0 $ 186.0 TOTAL ASSETS 1,148.1 25.0 1,173.1 Long-term payable to founding members under tax receivable agreement 114.0 98.6 212.6 Total liabilities 1,149.3 98.6 1,247.9 Additional paid in capital (deficit) 13.8 (246.9 ) (233.1 ) Retained earnings (distributions in excess of earnings) (303.5 ) 173.3 (130.2 ) Total equity/(deficit) (1.2 ) (73.6 ) (74.8 ) TOTAL LIABILITIES AND EQUITY/DEFICIT 1,148.1 25.0 1,173.1 The following tables present the effects of the correction of the prior period error and change in accounting principle to the Condensed Consolidated Statement of Income (in millions, except for per share data): Three Months Ended September 28, 2017 As Reported Correction of an Error As Corrected Change in Accounting Principle As Corrected and Adjusted Accretion of interest on the discounted payable to founding members under tax receivable agreement $ 3.2 $ 1.4 $ 4.6 $ (4.6 ) $ — Total non-operating expenses $ 16.1 $ 1.4 $ 17.5 $ (4.6 ) $ 12.9 INCOME BEFORE INCOME TAXES $ 34.2 $ (1.4 ) $ 32.8 $ 4.6 $ 37.4 Income tax expense $ 2.3 $ 1.0 $ 3.3 $ (2.1 ) $ 1.2 CONSOLIDATED NET INCOME $ 31.9 $ (2.4 ) $ 29.5 $ 6.7 $ 36.2 NET INCOME ATTRIBUTABLE TO NCM, INC. $ 9.4 $ (2.4 ) $ 7.0 $ 6.7 $ 13.7 NET INCOME PER NCM, INC. COMMON SHARE: Basic $ 0.15 $ (0.04 ) $ 0.11 $ 0.10 $ 0.21 Diluted $ 0.15 $ (0.04 ) $ 0.11 $ 0.10 $ 0.21 Nine Months Ended September 28, 2017 As Reported Correction of an Error As Corrected Change in Accounting Principle As Corrected and Adjusted Accretion of interest on the discounted payable to founding members under tax receivable agreement $ 9.5 $ 4.2 $ 13.7 $ (13.7 ) $ — Gain on re-measurement of the payable to founding members under the tax receivable agreement $ — $ (5.6 ) $ (5.6 ) $ 5.0 $ (0.6 ) Total non-operating expenses $ 47.8 $ (1.4 ) $ 46.4 $ (8.7 ) $ 37.7 INCOME BEFORE INCOME TAXES $ 35.9 $ 1.4 $ 37.3 $ 8.7 $ 46.0 Income tax expense (benefit) $ 2.6 $ 3.1 $ 5.7 $ (4.7 ) $ 1.0 CONSOLIDATED NET INCOME $ 33.3 $ (1.7 ) $ 31.6 $ 13.4 $ 45.0 NET INCOME ATTRIBUTABLE TO NCM, INC. $ 5.9 $ (1.7 ) $ 4.2 $ 13.4 $ 17.6 NET INCOME PER NCM, INC. COMMON SHARE: Basic $ 0.10 $ (0.03 ) $ 0.07 $ 0.22 $ 0.29 Diluted $ 0.10 $ (0.03 ) $ 0.07 $ 0.21 $ 0.28 The following table presents the effects of the correction of the prior period error and change in accounting principle to the Condensed Consolidated Statement of Cash Flow (in millions): Nine Months Ended September 28, 2017 As Reported Correction of an Error As Corrected Change in Accounting Principle As Corrected and Adjusted Consolidated net income $ 33.3 $ (1.7 ) $ 31.6 $ 13.4 $ 45.0 Adjustments to reconcile consolidated net income to net cash provided by operating activities: Deferred income tax expense $ 4.1 $ 3.0 $ 7.1 $ (4.6 ) $ 2.5 Accretion of interest on the discounted payable to founding members under tax receivable agreement $ 9.5 $ 4.2 $ 13.7 $ (13.7 ) $ — Non-cash gain on re-measurement of the payable to founding members under tax receivable agreement $ — $ (5.6 ) $ (5.6 ) $ 5.0 $ (0.6 ) Net cash provided by operating activities $ 104.0 $ — $ 104.0 $ — $ 104.0

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	9 Months Ended
	Sep. 27, 2018
Revenue from Contract with Customer [Abstract]
Summary of Revenue from Contracts with Customers	The following table summarizes revenue from contracts with customers for the three and nine months ended September 27, 2018 and September 28, 2017 : Three Months Ended Nine Months Ended September 27, September 28, September 27, September 28, National advertising revenue $ 80.8 $ 84.5 $ 214.4 $ 194.9 Local and regional advertising revenue 21.9 25.2 65.6 67.8 Founding member advertising revenue from beverage concessionaire agreements 7.4 6.7 24.0 22.7 Total revenue $ 110.1 $ 116.4 $ 304.0 $ 285.4
Summary of Changes in Deferred Revenue	The changes in deferred revenue for the nine months ended September 27, 2018 were as follows (in millions): Nine Months Ended September 27, Balance at beginning of period $ (7.1 ) Performance obligations satisfied 7.1 New contract liabilities (6.5 ) Balance at end of period $ (6.5 )

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 27, 2018
Earnings Per Share [Abstract]
Schedule of Loss Per Share, Basic and Diluted	The components of basic and diluted income per NCM, Inc. share are as follows: Three Months Ended Nine Months Ended September 27, September 28, September 27, September 28, Net income attributable to NCM, Inc. (in millions) $ 11.2 $ 13.7 $ 13.5 $ 17.6 Net income attributable to NCM, Inc. following conversion of dilutive membership units (net of estimated taxes of $0.0, $0.0, $14.7, $0.0) $ 11.2 $ 13.7 $ 24.6 $ 17.6 Weighted average shares outstanding: Basic 76,924,983 63,993,273 76,825,828 61,637,445 Add: Dilutive effect of stock options and restricted stock 560,578 288,308 80,161,908 437,132 Diluted 77,485,561 64,281,581 156,987,736 62,074,577 Income per NCM, Inc. share: Basic $ 0.15 $ 0.21 $ 0.18 $ 0.29 Diluted $ 0.14 $ 0.21 $ 0.16 $ 0.28

Related Party Transactions (Tab

Related Party Transactions (Tables)	9 Months Ended
	Sep. 27, 2018
Related Party Transactions [Abstract]
Schedule of Related Party Transactions	The following tables provide summaries of the transactions between the Company and the founding members (in millions): Three Months Ended Nine Months Ended Included in the Condensed Consolidated Statements of Income: (1) September 27, September 28, September 27, September 28, Revenue: Beverage concessionaire revenue (included in advertising revenue) (2) $ 5.8 $ 6.7 $ 21.8 $ 22.7 Operating expenses: Theater access fee (3) 13.4 18.1 55.5 57.4 Purchase of movie tickets and concession products and rental of theater space (included in selling and marketing costs) (4) 0.2 0.4 0.9 1.2 Purchase of movie tickets and concession products and rental of theater space (included in advertising operating costs) (4) 0.1 — 0.1 0.1 Non-operating expenses: Interest income from notes receivable (included in interest income) (5) 0.1 0.2 0.3 0.5 ________________________________________ (1) AMC is no longer considered a related party as of July 5, 2018, as described further above. As such, the figures within the table above only include related party activity with AMC for the first six months of 2018. (2) For the three and nine months ended September 27, 2018 and September 28, 2017 , two of the founding members purchased 60 seconds of on-screen advertising time and one founding member purchased 30 seconds (with all three founding members having a right to purchase up to 90 seconds ) from NCM LLC to satisfy their obligations under their beverage concessionaire agreements at a 30 seconds equivalent CPM rate specified by the ESA. (3) Comprised of payments per theater attendee and payments per digital screen with respect to the founding member theaters included in the Company’s network, including payments for access to higher quality digital cinema equipment. (4) Used primarily for marketing to NCM LLC’s advertising clients. (5) On December 26, 2013, NCM LLC sold its Fathom Events business to a newly formed limited liability company (AC JV, LLC) owned 32% by each of the founding members and 4% by NCM LLC. In consideration for the sale, NCM LLC received a total of $25.0 million in promissory notes from its founding members (one-third or approximately $8.3 million from each founding member). The notes bear interest at a fixed rate of 5.0% per annum, compounded annually. Interest and principal payments are due annually in six equal installments commencing on the first anniversary of the closing. As of Included in the Condensed Consolidated Balance Sheets: September 27, December 28, Purchase of movie tickets and concession products (included in prepaid expenses) (1) $ 0.1 $ — Current portion of notes receivable - related parties (1) (2) 2.8 4.2 Long-term portion of notes receivable - related parties (1) (2) 2.7 4.1 Interest receivable on notes receivable (included in other current assets) (1) (2) 0.3 — Common unit adjustments, net of amortization and integration payments (included in intangible assets) (3) 671.7 687.1 Current payable to founding members under tax receivable agreement (1)(4)(5) 10.1 19.6 Long-term payable to founding members under tax receivable agreement (1)(4)(5) 143.6 212.6 _________________________________ (1) AMC is no longer considered a related party as of July 5, 2018, as described further above. As such, the figures as of September 27, 2018 do not include AMC and the figures as of December 28, 2017 do include AMC. (2) Refer to the discussion of notes receivable from the founding members above. (3) Refer to Note 4— Intangible Assets for further information on common unit adjustments and integration payments. (4) The Company paid the founding members $ 17.6 million in payments pursuant to the TRA during the second quarter of 2018 which was for the 2017 tax year. The Company paid the founding members $18.8 million in 2017 which was for the 2016 tax year. (5) These balances have been recast following the adoption of the change in accounting principle discussed within Note 1— The Company .
Schedule of Mandatory Distributions to Members	Mandatory distributions of available cash for the three and nine months ended September 27, 2018 and September 28, 2017 were as follows (in millions): Three Months Ended Nine Months Ended September 27, September 28, September 27, September 28, AMC $ — $ 8.1 $ 2.2 $ 16.3 Cinemark 9.4 9.6 20.7 15.6 Regal 9.7 9.5 21.5 15.5 Total founding members 19.1 27.2 44.4 47.4 NCM, Inc. 18.2 25.9 42.5 39.0 Total $ 37.3 $ 53.1 $ 86.9 $ 86.4
Schedule of Amounts Due to Founding Members, Net	ion. Amounts due to founding members, net as of September 27, 2018 were comprised of the following (in millions): AMC Cinemark Regal Total Theater access fees, net of beverage revenues and other encumbered theater payments $ 1.3 $ 0.9 $ 1.4 $ 3.6 Distributions payable to founding members — 9.4 9.7 19.1 Integration payments due from founding members (4.8 ) (0.3 ) — (5.1 ) Cost and other reimbursement (0.1 ) — — (0.1 ) Total amounts due (from) to founding members, net $ (3.6 ) $ 10.0 $ 11.1 $ 17.5 Amounts due to founding members, net as of December 28, 2017 were comprised of the following (in million

Borrowings (Tables)

Borrowings (Tables)	9 Months Ended
	Sep. 27, 2018
NCM, LLC.
Schedule of Outstanding Debt	The following table summarizes NCM LLC’s total outstanding debt as of September 27, 2018 and December 28, 2017 and the significant terms of its borrowing arrangements (in millions): Outstanding Balance as of Borrowings September 27, December 28, Maturity Date Interest Rate Senior secured notes due 2022 $ 400.0 $ 400.0 April 15, 2022 6.000 % Revolving credit facility 14.0 12.0 June 20, 2023 (1) (2 ) Term loans 269.4 270.0 June 20, 2025 (1) (2 ) Senior unsecured notes due 2026 242.3 250.0 August 15, 2026 5.750 % Total borrowings 925.7 932.0 Less: debt issuance costs related to term loans and senior notes (8.2 ) (8.7 ) Total borrowings, net 917.5 923.3 Less: current portion of debt (2.7 ) — Carrying value of long-term debt $ 914.8 $ 923.3 ___________________________________________________ (1) The maturity dates for the revolving credit facility and term loan are contingent upon the refinancing of the senior secured notes due in 2022 on or prior to October 30, 2021. If the Senior Secured Notes are not refinanced on or prior to October 30, 2021, then the revolving credit facility and term loan will instead mature on December 30, 2021. The maturity dates for the revolving credit facility and term loan as of December 28, 2017 are described below. (2) The interest rates on the revolving credit facility and term loans are described below.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 27, 2018
Fair Value Disclosures [Abstract]
Schedule of Other Assets	Other investments consisted of the following (in millions): As of September 27, December 28, Investment in AC JV, LLC (1) $ 1.1 $ 1.0 Other investments (2) 2.1 2.5 Total $ 3.2 $ 3.5 _______________________________________ (1) Refer to Note 5— Related Party Transactions . This investment is accounted for utilizing the equity method. (2) The Company received equity securities in privately held companies as consideration for a portion of advertising contracts. The equity securities are accounted for at adjusted cost in accordance with the practicability exception under ASU 2016-1 and represent an ownership of less than 20% . The Company does not exert significant influence on these companies’ operating or financial activities.
Estimated Fair Values of Company's Financial Instruments	The estimated fair values of the Company’s financial instruments where carrying values do not approximate fair value were as follows (in millions): As of September 27, As of December 28, Carrying Value Fair Value (1) Carrying Value Fair Value (1) Term loan $ 269.4 $ 270.2 $ 270.0 $ 270.8 Notes due 2022 400.0 406.5 400.0 407.3 Notes due 2026 242.3 239.0 250.0 235.0 ____________________________________________ (1) If the Company were to measure the borrowings in the above table at fair value on the balance sheet they would be classified as Level 2 based upon the inputs utilized.
Fair Values of the Company's Assets	The fair values of the Company’s assets and liabilities measured on a recurring basis pursuant to ASC 820-10, Fair Value Measurements and Disclosures are as follows (in millions): Fair Value Measurements at Reporting Date Using Fair Value as of September 27, Quoted Prices in Active Markets for Identical Assets Significant Other Significant Unobservable Inputs ASSETS: Cash equivalents (1) $ 12.7 $ 10.2 $ 2.5 $ — Short-term marketable securities (2) 29.2 — 29.2 — Long-term marketable securities (2) 10.2 — 10.2 — Total assets $ 52.1 $ 10.2 $ 41.9 $ — Fair Value Measurements at Reporting Date Using Fair Value as of December 28, Quoted Prices in Active Markets for Identical Assets Significant Other Significant Unobservable Inputs ASSETS: Cash equivalents (1) $ 12.2 $ 8.2 $ 4.0 $ — Short-term marketable securities (2) 13.1 — 13.1 — Long-term marketable securities (2) 16.2 — 16.2 — Total assets $ 41.5 $ 8.2 $ 33.3 $ — ___________________________________________ (1) Cash Equivalents —The Company’s cash equivalents are carried at estimated fair value. Cash equivalents consist of money market accounts which the Company has classified as Level 1 given the active market for these accounts and commercial paper with original maturities of three months or less, which are classified as Level 2 and are valued as described below. (2) Short-Term and Long-Term Marketable Securities —The carrying amount and fair value of the marketable securities are equivalent since the Company accounts for these instruments at fair value. The Company’s government agency bonds, commercial paper and certificates of deposit are valued using third party broker quotes. The value of the Company’s government agency bonds is derived from quoted market information. The inputs in the valuation are classified as Level 1 if there is an active market for these securities; however, if an active market does not exist, the inputs are recorded at a lower level in the fair value hierarchy. The value of commercial paper and certificates of deposit is derived from pricing models using inputs based upon market information, including contractual terms, market prices and yield curves. The inputs to the valuation pricing models are observable in the market, and as such are generally classified as Level 2 in the fair value hierarchy. For the three and nine months ended September 27, 2018 and September 28, 2017 , there was an inconsequential amount of net realized gains (losses) recognized in interest income and an inconsequential amount of net unrealized holding gains (losses) included in other comprehensive income. Original cost of short-term marketable securities is based on the specific identification method. As of September 27, 2018 and December 28, 2017 , there was $0.2 million and $0.2 million , respectively, of gross unrealized losses related to individual securities of $11.7 million and $8.2 million , respectively, that had been in a continuous loss position for 12 months or longer. The Company has not recorded an impairment because it has the intention and ability to hold these securities to maturity.
Schedule of Marketable Securities	The amortized cost basis, aggregate fair value and maturities of the marketable securities the Company held as of September 27, 2018 and December 28, 2017 were as follows: As of September 27, 2018 Amortized Cost Aggregate Fair Maturities (1) MARKETABLE SECURITIES: Short-term municipal bonds $ 0.5 $ 0.5 0.4 Short-term U.S. government agency bonds 5.4 5.4 0.6 Short-term commercial paper: Financial 5.8 5.8 0.2 Industrial 15.0 14.9 0.2 Short-term certificates of deposit 2.6 2.6 0.5 Total short-term marketable securities $ 29.3 $ 29.2 Long-term municipal bonds 1.2 1.3 1.8 Long-term U.S. government agency bonds 6.5 6.3 2.3 Long-term certificates of deposit 2.7 2.6 1.6 Total long-term marketable securities $ 10.4 $ 10.2 Total marketable securities $ 39.7 $ 39.4 As of December 28, 2017 Amortized Cost Aggregate Fair Maturities (1) MARKETABLE SECURITIES: Short-term U.S. government agency bonds 2.3 2.2 0.9 Short-term certificates of deposit 0.9 0.9 0.8 Short-term commercial paper: Financial 6.0 6.0 0.3 Industrial 4.0 4.0 0.3 Total short-term marketable securities 13.2 13.1 Long-term municipal bonds 1.9 1.9 2.1 Long-term U.S. government agency bonds 10.4 10.2 2.5 Long-term certificates of deposit 4.1 4.1 1.8 Total long-term marketable securities 16.4 16.2 Total marketable securities $ 29.6 $ 29.3 ___________________________________ (1) Maturities —Securities available for sale include obligations with various contractual maturity dates some of which are greater than one year. The Company considers the securities to be liquid and convertible to cash within 30 days.

The Company (Narrative) (Detail

The Company (Narrative) (Details) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2018USD ($)$ / sharesshares	Sep. 28, 2017USD ($)$ / sharesshares	Sep. 27, 2018USD ($)Segment$ / sharesshares	Sep. 28, 2017USD ($)$ / sharesshares	Dec. 29, 2017USD ($)	Dec. 29, 2016USD ($)
General Company Information [Line Items]
Remaining term (in years)			18 years
Common membership units outstanding | shares	76,932,494		76,932,494
Percentage of common membership units outstanding			48.80%
Membership units exchangeable into common stock ratio			100.00%
Number of reportable segment | Segment			1
Number of shares of restricted stock and stock units vested | shares	21,807	997,403	20,204	1,028,322
Stock options exercised in period | shares	0	0	0	58,450
Weighted average exercise price | $ / shares	$ 0	$ 0	$ 0	$ 11.04
Cumulative-effect adjustment related to change in accounting for barter transactions on contracts that are not completed					$ (0.2)
Percentage of cash savings related to taxes			90.00%
Income tax and other impacts of subsidiary ownership changes			$ 9.6	$ (42.3)
Change in Accounting Principle
General Company Information [Line Items]
Change in accounting principle resulted in increase (decrease) within the activity				(12)
Change in accounting principle resulted in decrease in net loss	$ 0.5		$ 4.9
Change in accounting principle resulted in decrease in net loss per share | $ / shares	$ 0.01		$ 0.06
Correction of an Error
General Company Information [Line Items]
Income tax and other impacts of subsidiary ownership changes				1.9
Decrease to additional paid in capital		$ (99.1)		(99.1)
ASU 2014-09
General Company Information [Line Items]
Cumulative-effect adjustment related to change in accounting for barter transactions on contracts that are not completed					$ 0.2
NCM, LLC.
General Company Information [Line Items]
Common membership units outstanding | shares	157,593,316		157,593,316
AMC
General Company Information [Line Items]
Common membership units outstanding | shares	0		0
Percentage of common membership units outstanding			0.00%
Cinemark
General Company Information [Line Items]
Common membership units outstanding | shares	39,518,644		39,518,644
Percentage of common membership units outstanding			25.10%
Regal
General Company Information [Line Items]
Common membership units outstanding | shares	41,142,178		41,142,178
Percentage of common membership units outstanding			26.10%
Minimum | NCM, LLC.
General Company Information [Line Items]
Range of long-term network affiliate agreement terms, in years			1 year
Maximum | NCM, LLC.
General Company Information [Line Items]
Range of long-term network affiliate agreement terms, in years			20 years
Additional Paid in Capital (Deficit)
General Company Information [Line Items]
Income tax and other impacts of subsidiary ownership changes			$ 6.9	6.1
Additional Paid in Capital (Deficit) | Change in Accounting Principle
General Company Information [Line Items]
Cumulative-effect adjustment related to change in accounting for barter transactions on contracts that are not completed						$ (233.1)
Change in accounting principle resulted in increase (decrease) within the activity				$ (245.2)

The Company (Changes In Equity)

The Company (Changes In Equity) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017
Accounting Policies [Abstract]
Net income attributable to NCM, Inc.	$ 11.2	$ 13.7	$ 13.5	$ 17.6
NCM LLC equity issued for purchase of intangible asset			7.7	78.8
Income tax and other impacts of subsidiary ownership changes			6.9	6.1
NCM, Inc. investment in NCM LLC			0	(77.8)
Issuance of shares			0	77.6
Change from net income attributable to NCM, Inc. and transfers from noncontrolling interests			$ 28.1	$ 102.3

The Company (Effect of Change i

The Company (Effect of Change in Accounting Principle) (Details) - USD ($) $ in Millions	Sep. 27, 2018	Dec. 29, 2017	Dec. 28, 2017	Sep. 28, 2017	Dec. 29, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Beginning balance - as previously reported	$ (90.4)		$ (74.8)	$ (111.3)	$ (232.2)
Cumulative-effect adjustment for adoption of ASU 2014-09		$ (0.2)
As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Beginning balance - as previously reported			(1.2)
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Beginning balance - as previously reported	(156.8)		(130.2)	(153.9)	(130.7)
Cumulative-effect adjustment for adoption of ASU 2014-09		$ (0.2)
Beginning balance – as adjusted					(130.7)
Retained Earnings | Change in Accounting Principle
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative-effect adjustment for adoption of ASU 2014-09					117.6
Retained Earnings | As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Beginning balance - as previously reported					(248.3)
Additional Paid in Capital (Deficit)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Beginning balance - as previously reported	$ (216.2)		$ (233.1)	$ (257.6)	(343.6)
Beginning balance – as adjusted					(343.6)
Additional Paid in Capital (Deficit) | Change in Accounting Principle
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative-effect adjustment for adoption of ASU 2014-09					(233.1)
Additional Paid in Capital (Deficit) | As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Beginning balance - as previously reported					$ (110.5)

The Company (Effect of Change_2

The Company (Effect of Change in Accounting Principle to Condensed Consolidated Balance Sheet) (Details) - USD ($) $ in Millions	Sep. 27, 2018	Dec. 28, 2017	Sep. 28, 2017	Dec. 29, 2016
Item Effected [Line Items]
Long-term deferred tax assets, net of valuation allowance of $98.1	$ 180.7	$ 186
TOTAL ASSETS	1,120	1,173.1
Long-term payable to founding members under tax receivable agreement	197.6	212.6
Total liabilities	1,210.4	1,247.9
Additional paid in capital (deficit)	(216.2)	(233.1)
Retained earnings (distributions in excess of earnings)	(156.8)	(130.2)
Total equity/(deficit)	(90.4)	(74.8)	$ (111.3)	$ (232.2)
TOTAL LIABILITIES AND EQUITY/DEFICIT	$ 1,120	1,173.1
As Reported
Item Effected [Line Items]
Long-term deferred tax assets, net of valuation allowance of $98.1		161
TOTAL ASSETS		1,148.1
Long-term payable to founding members under tax receivable agreement		114
Total liabilities		1,149.3
Additional paid in capital (deficit)		13.8
Retained earnings (distributions in excess of earnings)		(303.5)
Total equity/(deficit)		(1.2)
TOTAL LIABILITIES AND EQUITY/DEFICIT		1,148.1
Change in Accounting Principle | Change in Accounting Principle
Item Effected [Line Items]
Long-term deferred tax assets, net of valuation allowance of $98.1		25
TOTAL ASSETS		25
Long-term payable to founding members under tax receivable agreement		98.6
Total liabilities		98.6
Additional paid in capital (deficit)		(246.9)
Retained earnings (distributions in excess of earnings)		173.3
Total equity/(deficit)		(73.6)
TOTAL LIABILITIES AND EQUITY/DEFICIT		$ 25

The Company (Effect of Change_3

The Company (Effect of Change in Accounting Principle to Condensed Consolidated Balance Sheet) (Additional Information) (Details) - USD ($) $ in Millions	Sep. 27, 2018	Dec. 28, 2017
Accounting Policies [Abstract]
Long-term deferred tax assets, net of valuation allowance	$ 77.9	$ 98.1

The Company (Effect of Change_4

The Company (Effect of Change in Accounting Principle to Condensed Consolidated Statement of Income) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017
Item Effected [Line Items]
Accretion of interest on the discounted payable to founding members under tax receivable agreement		$ 0		$ 0
Gain on re-measurement of the payable to founding members under the tax receivable agreement	$ (3.2)	0	$ 4.6	0.6
Total non-operating expenses	16.9	12.9	37.5	37.7
INCOME BEFORE INCOME TAXES	25.4	37.4	56	46
Income tax expense (benefit)	(0.3)	1.2	16.7	1
CONSOLIDATED NET INCOME	25.7	36.2	39.3	45
Net income attributable to NCM, Inc.	$ 11.2	$ 13.7	$ 13.5	$ 17.6
NET INCOME PER NCM, INC. COMMON SHARE:
Basic (in usd per share)	$ 0.15	$ 0.21	$ 0.18	$ 0.29
Diluted (in usd per share)	$ 0.14	$ 0.21	$ 0.16	$ 0.28
Change in Accounting Principle
Item Effected [Line Items]
Accretion of interest on the discounted payable to founding members under tax receivable agreement		$ (4.6)		$ (13.7)
Gain on re-measurement of the payable to founding members under the tax receivable agreement				(5)
Total non-operating expenses		(4.6)		(8.7)
INCOME BEFORE INCOME TAXES		4.6		8.7
Income tax expense (benefit)		(2.1)		(4.7)
CONSOLIDATED NET INCOME		6.7		13.4
Net income attributable to NCM, Inc.		$ 6.7		$ 13.4
NET INCOME PER NCM, INC. COMMON SHARE:
Basic (in usd per share)		$ 0.10		$ 0.22
Diluted (in usd per share)		$ 0.10		$ 0.21
As Corrected
Item Effected [Line Items]
Accretion of interest on the discounted payable to founding members under tax receivable agreement		$ 4.6		$ 13.7
Gain on re-measurement of the payable to founding members under the tax receivable agreement				5.6
Total non-operating expenses		17.5		46.4
INCOME BEFORE INCOME TAXES		32.8		37.3
Income tax expense (benefit)		3.3		5.7
CONSOLIDATED NET INCOME		29.5		31.6
Net income attributable to NCM, Inc.		$ 7		$ 4.2
NET INCOME PER NCM, INC. COMMON SHARE:
Basic (in usd per share)		$ 0.11		$ 0.07
Diluted (in usd per share)		$ 0.11		$ 0.07
As Reported
Item Effected [Line Items]
Accretion of interest on the discounted payable to founding members under tax receivable agreement		$ 3.2		$ 9.5
Gain on re-measurement of the payable to founding members under the tax receivable agreement				0
Total non-operating expenses		16.1		47.8
INCOME BEFORE INCOME TAXES		34.2		35.9
Income tax expense (benefit)		2.3		2.6
CONSOLIDATED NET INCOME		31.9		33.3
Net income attributable to NCM, Inc.		$ 9.4		$ 5.9
NET INCOME PER NCM, INC. COMMON SHARE:
Basic (in usd per share)		$ 0.15		$ 0.10
Diluted (in usd per share)		$ 0.15		$ 0.10
Correction of an Error
Item Effected [Line Items]
Accretion of interest on the discounted payable to founding members under tax receivable agreement		$ 1.4		$ 4.2
Gain on re-measurement of the payable to founding members under the tax receivable agreement				5.6
Total non-operating expenses		1.4		(1.4)
INCOME BEFORE INCOME TAXES		(1.4)		1.4
Income tax expense (benefit)		1		3.1
CONSOLIDATED NET INCOME		(2.4)		(1.7)
Net income attributable to NCM, Inc.		$ (2.4)		$ (1.7)
NET INCOME PER NCM, INC. COMMON SHARE:
Basic (in usd per share)		$ (0.04)		$ (0.03)
Diluted (in usd per share)		$ (0.04)		$ (0.03)

The Company (Effect of Change_5

The Company (Effect of Change in Accounting Principle to Condensed Consolidated Statement of Cash Flow) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017
Item Effected [Line Items]
Consolidated net income	$ 25.7	$ 36.2	$ 39.3	$ 45
Adjustments to reconcile consolidated net loss to net cash provided by operating activities:
Deferred income tax expense			16.6	2.5
Accretion of interest on the discounted payable to founding members under tax receivable agreement		0		0
Non-cash gain on re-measurement of the payable to founding members under tax receivable agreement			(4.6)	(0.6)
Net cash provided by operating activities			$ 118.8	104
Change in Accounting Principle
Item Effected [Line Items]
Consolidated net income		6.7		13.4
Adjustments to reconcile consolidated net loss to net cash provided by operating activities:
Deferred income tax expense				(4.6)
Accretion of interest on the discounted payable to founding members under tax receivable agreement		(4.6)		(13.7)
Non-cash gain on re-measurement of the payable to founding members under tax receivable agreement				5
Net cash provided by operating activities				0
As Corrected
Item Effected [Line Items]
Consolidated net income		29.5		31.6
Adjustments to reconcile consolidated net loss to net cash provided by operating activities:
Deferred income tax expense				7.1
Accretion of interest on the discounted payable to founding members under tax receivable agreement		4.6		13.7
Non-cash gain on re-measurement of the payable to founding members under tax receivable agreement				(5.6)
Net cash provided by operating activities				104
As Reported
Item Effected [Line Items]
Consolidated net income		31.9		33.3
Adjustments to reconcile consolidated net loss to net cash provided by operating activities:
Deferred income tax expense				4.1
Accretion of interest on the discounted payable to founding members under tax receivable agreement		3.2		9.5
Non-cash gain on re-measurement of the payable to founding members under tax receivable agreement				0
Net cash provided by operating activities				104
Correction of an Error
Item Effected [Line Items]
Consolidated net income		(2.4)		(1.7)
Adjustments to reconcile consolidated net loss to net cash provided by operating activities:
Deferred income tax expense				3
Accretion of interest on the discounted payable to founding members under tax receivable agreement		$ 1.4		4.2
Non-cash gain on re-measurement of the payable to founding members under tax receivable agreement				(5.6)
Net cash provided by operating activities				$ 0

Revenue from Contracts with C_3

Revenue from Contracts with Customers (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 27, 2018	Dec. 28, 2017
Revenue from Contract with Customer [Abstract]
Make-good provision	$ 3.2	$ 5.5
Remaining performance obligation payment terms	30 days
Noncancelable contract terms	2 years
Term over which unbilled accounts receivable are expected to be billed	12 months
Unbilled accounts receivable	$ 6.4	$ 10.6

Revenue from Contracts with C_4

Revenue from Contracts with Customers (Remaining Performance Obligations) (Details) $ in Millions	9 Months Ended
	Sep. 27, 2018USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 52.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-09-28
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 9.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue from contract, payment due period from the customer	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-12-28
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 42.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue from contract, payment due period from the customer	1 year

Revenue from Contracts with C_5

Revenue from Contracts with Customers (Summary of Revenue from Contracts with Customers) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017
Disaggregation of Revenue [Line Items]
Revenue	$ 110.1	$ 116.4	$ 304	$ 285.4
National advertising revenue
Disaggregation of Revenue [Line Items]
Revenue	80.8	84.5	214.4	194.9
Local and regional advertising revenue
Disaggregation of Revenue [Line Items]
Revenue	21.9	25.2	65.6	67.8
Founding member advertising revenue from beverage concessionaire agreements
Disaggregation of Revenue [Line Items]
Revenue	$ 7.4	$ 6.7	$ 24	$ 22.7

Revenue from Contracts with C_6

Revenue from Contracts with Customers (Summary of Changes in Deferred Revenue) (Details) $ in Millions	9 Months Ended
	Sep. 27, 2018USD ($)
Contract Liabilities
Balance at beginning of period	$ (7.1)
Performance obligations satisfied	7.1
New contract liabilities	(6.5)
Balance at end of period	$ (6.5)

Earnings Per Share (Schedule of

Earnings Per Share (Schedule of Loss Per Share, Basic and Diluted) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017
Earnings Per Share [Abstract]
Net income attributable to NCM, Inc. (in millions)	$ 11.2	$ 13.7	$ 13.5	$ 17.6
Net income attributable to NCM, Inc. following conversion of dilutive membership units (net of estimated taxes of $0.0, $0.0, $14.7, $0.0)	0	0	0	0
Estimated taxes	$ 0	$ 0	$ 14.7	$ 0
Weighted average shares outstanding:
Basic (in shares)	76,924,983	63,993,273	76,825,828	61,637,445
Add: Dilutive effect of stock options and restricted stock (in shares)	560,578	288,308	80,161,908	437,132
Diluted (in shares)	77,485,561	64,281,581	156,987,736	62,074,577
Income per NCM, Inc. share:
Basic (in usd per share)	$ 0.15	$ 0.21	$ 0.18	$ 0.29
Diluted (in usd per share)	$ 0.14	$ 0.21	$ 0.16	$ 0.28

Earnings Per Share (Narrative)

Earnings Per Share (Narrative) (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Effective tax rate			55.30%	5.40%
Stock Options And Non-Vested Restricted Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the calculation of diluted weighted average shares	2,016,709	2,223,440	935,912	433,224
Common Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the calculation of diluted weighted average shares	80,660,822	90,069,881		87,769,713

Intangible Assets (Narrative) (

Intangible Assets (Narrative) (Details) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 27, 2018USD ($)	Mar. 29, 2018USD ($)shares	Sep. 28, 2017USD ($)	Mar. 30, 2017USD ($)Theatershares	Sep. 27, 2018USD ($)	Sep. 28, 2017USD ($)
Finite-Lived Intangible Assets [Line Items]
Integration and other encumbered theater payments received from founding members | $					$ 17.2	$ 6.1
AMC | NCM, Inc. and NCM LLC, MOU with AMC to Effectuate Aspects of Final Judgment [Member]
Finite-Lived Intangible Assets [Line Items]
Percentage increase (decrease) in theater attendance for Common Unit adjustment to occur				9.50%
Common membership units issued, net of returned				4,657,673
Number of theaters required to transfer advertising rights to another advertising provider | Theater				17
Common membership units surrendered under adjustment for divested theaters				2,850,453
Common membership units surrendered under compensate for lost operating income for divested theaters				1,807,220
Common membership units surrendered, value, under compensate for lost operating income for divested theaters | $				$ 25
Compensate for lost operating income for divested theaters, term				10 years
NCM, LLC.
Finite-Lived Intangible Assets [Line Items]
Common membership units issued, net of returned		2,821,710		2,351,029
Common membership units issued		3,736,860
Common membership units returned		915,150
Increase (decrease) in intangible assets, net | $		$ 15.9		$ 201.8
NCM, LLC. | NCM, Inc. and NCM LLC, MOU with AMC to Effectuate Aspects of Final Judgment [Member]
Finite-Lived Intangible Assets [Line Items]
Common membership units issued, net of returned				18,425,423
NCM, LLC. | AMC and Cinemark
Finite-Lived Intangible Assets [Line Items]
Increase (decrease) in intangible assets, net | $	$ 5.5		$ 6.9		13.3	11.6
Integration and other encumbered theater payments received from founding members | $	$ 5.6		$ 4.6		$ 17.2	$ 6.1
Minimum
Finite-Lived Intangible Assets [Line Items]
Percentage increase (decrease) in theater attendance for Common Unit adjustment to occur					(2.00%)
Maximum
Finite-Lived Intangible Assets [Line Items]
Percentage increase (decrease) in theater attendance for Common Unit adjustment to occur					2.00%

Related Party Transactions (Nar

Related Party Transactions (Narrative) (Details) - USD ($) $ in Millions	Jul. 05, 2018	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017	Dec. 28, 2017	Dec. 26, 2013
Related Party Transaction [Line Items]
On-screen advertising time to satisfy agreement obligations, in seconds		30 seconds	30 seconds	30 seconds	30 seconds
Percentage of cash savings related to taxes				90.00%
Cash payment due to founding members/managing member		$ 19.1		$ 19.1		$ 37.6
Cash dividends on shares of NMC Inc				$ 39.9	$ 40.8
Common stock, shares outstanding (in shares)		76,932,494		76,932,494		76,242,222
AC JV, LLC
Related Party Transaction [Line Items]
Investment in AC JV, LLC		$ 1.1		$ 1.1		$ 1
Equity in earnings of non-consolidated entities		0	$ 0	0.1	0.1
NCM, LLC. | AC JV, LLC
Related Party Transaction [Line Items]
Ownership percentage							4.00%
Fees received related to transition services agreement		0.1	0.1	0.2	0.2
Founding Members
Related Party Transaction [Line Items]
Cash payment due to founding members/managing member		19.1		19.1
Founding Members | American Multi-Cinema and AMC ShowPlace Theaters
Related Party Transaction [Line Items]
Remaining percentage of membership units sold	100.00%
AMC
Related Party Transaction [Line Items]
Cash payment due to founding members/managing member		0		0		10.8
Cash dividends on shares of NMC Inc			$ 0.4		$ 0.1
AMC | AC JV, LLC
Related Party Transaction [Line Items]
Ownership percentage							32.00%
Cinemark
Related Party Transaction [Line Items]
Cash payment due to founding members/managing member		9.4		9.4		13.5
Cinemark | AC JV, LLC
Related Party Transaction [Line Items]
Ownership percentage							32.00%
Regal
Related Party Transaction [Line Items]
Cash payment due to founding members/managing member		$ 9.7		$ 9.7		$ 13.3
Regal | AC JV, LLC
Related Party Transaction [Line Items]
Ownership percentage							32.00%
Minimum
Related Party Transaction [Line Items]
On-screen advertising time to satisfy agreement obligations, in seconds				30 seconds
Maximum
Related Party Transaction [Line Items]
On-screen advertising time to satisfy agreement obligations, in seconds				60 seconds

Related Party Transactions (Sum

Related Party Transactions (Summary of Transactions Between the Company and the Founding Members Included in Statements of Income) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017
Related Party Transaction [Line Items]
Revenue	$ 110,100,000	$ 116,400,000	$ 304,000,000	$ 285,400,000
Selling and marketing costs	15,300,000	17,200,000	48,000,000	54,200,000
Founding Members
Related Party Transaction [Line Items]
Revenue	5,800,000	6,700,000	21,800,000	22,700,000
Theater access fee	13,400,000	18,100,000	55,500,000	57,400,000
Selling and marketing costs	200,000	400,000	900,000	1,200,000
Advertising marketing costs	100,000	0	100,000	100,000
Interest income from notes receivable (included in interest income)	$ 100,000	$ 200,000	$ 300,000	$ 500,000

Related Party Transactions (S_2

Related Party Transactions (Summary of Transactions Between the Company and the Founding Members Included in Statements of Income) (Additional Information) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017	Dec. 26, 2013	Dec. 28, 2017
Related Party Transaction [Line Items]
On-screen advertising time to satisfy agreement obligations, in seconds	30 seconds	30 seconds	30 seconds	30 seconds
NCM, LLC. | AC JV, LLC
Related Party Transaction [Line Items]
Ownership percentage					4.00%
One Founding Members
Related Party Transaction [Line Items]
On-screen advertising time purchased, in seconds	30 seconds	30 seconds	30 seconds	30 seconds
Two Founding Members
Related Party Transaction [Line Items]
On-screen advertising time purchased, in seconds	60 seconds	60 seconds	60 seconds	60 seconds
AMC | AC JV, LLC
Related Party Transaction [Line Items]
Ownership percentage					32.00%
Promissory notes receivable from founding members					$ 8.3
Regal | AC JV, LLC
Related Party Transaction [Line Items]
Ownership percentage					32.00%
Promissory notes receivable from founding members					$ 8.3
Cinemark | AC JV, LLC
Related Party Transaction [Line Items]
Ownership percentage					32.00%
Promissory notes receivable from founding members					$ 8.3
Founding Members
Related Party Transaction [Line Items]
Promissory notes receivable from founding members	$ 8.3		$ 8.3			$ 8.3
Founding Members | NCM, LLC. | AC JV, LLC
Related Party Transaction [Line Items]
Interest rate on notes receivable					5.00%
Promissory notes receivable from founding members					$ 25
Founding Members | Promissory Notes | NCM, LLC. | AC JV, LLC
Related Party Transaction [Line Items]
Notes receivable payment term			Interest and principal payments are due annually in six equal installments commencing on the first anniversary of the closing.
Maximum
Related Party Transaction [Line Items]
On-screen advertising time to satisfy agreement obligations, in seconds			60 seconds
On-screen advertising time which founding members have right to purchase, in seconds	90 seconds	90 seconds	90 seconds	90 seconds
Minimum
Related Party Transaction [Line Items]
On-screen advertising time to satisfy agreement obligations, in seconds			30 seconds

Related Party Transactions (S_3

Related Party Transactions (Summary of Transactions Between the Company and the Founding Members Included in Balance Sheets) (Details) - USD ($) $ in Millions	Sep. 27, 2018	Dec. 28, 2017
Related Party Transaction [Line Items]
Purchase of movie tickets and concession products (included in prepaid expenses) (1)	$ 4	$ 4.2
Current portion of notes receivable - founding members (including receivables from related parties of $2.8 and $4.2, respectively)	4.2	4.2
Long-term notes receivable, net of current portion - founding members (including receivables from related parties of $2.7 and $4.1, respectively)	4.1	4.1
Common unit adjustments, net of amortization and integration payments (included in intangible assets)	699.5	717.2
Current payable to founding members under tax receivable agreement	13.7	19.6
Long-term payable to founding members under tax receivable agreement	197.6	212.6
Founding Members
Related Party Transaction [Line Items]
Purchase of movie tickets and concession products (included in prepaid expenses) (1)	0.1	0
Current portion of notes receivable - founding members (including receivables from related parties of $2.8 and $4.2, respectively)	2.8	4.2
Long-term notes receivable, net of current portion - founding members (including receivables from related parties of $2.7 and $4.1, respectively)	2.7	4.1
Interest receivable on notes receivable (included in other current assets)	0.3	0
Common unit adjustments, net of amortization and integration payments (included in intangible assets)	671.7	687.1
Current payable to founding members under tax receivable agreement	10.1	19.6
Long-term payable to founding members under tax receivable agreement	$ 143.6	$ 212.6

Related Party Transactions (S_4

Related Party Transactions (Summary of Transactions Between the Company and the Founding Members Included in Balance Sheets) (Additional Information) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 28, 2018	Dec. 28, 2017
Tax Year 2017
Related Party Transaction [Line Items]
Payments to affiliates for tax sharing agreement	$ 17.6
Tax Year 2016
Related Party Transaction [Line Items]
Payments to affiliates for tax sharing agreement		$ 18.8

Related Party Transactions (Sch

Related Party Transactions (Schedule of Mandatory Distributions to Members) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017
Related Party Transaction [Line Items]
Cash distributions declared to members	$ 37.3	$ 53.1	$ 86.9	$ 86.4
AMC
Related Party Transaction [Line Items]
Cash distributions declared to members	0	8.1	2.2	16.3
Cinemark
Related Party Transaction [Line Items]
Cash distributions declared to members	9.4	9.6	20.7	15.6
Regal
Related Party Transaction [Line Items]
Cash distributions declared to members	9.7	9.5	21.5	15.5
Founding Members
Related Party Transaction [Line Items]
Cash distributions declared to members	19.1	27.2	44.4	47.4
NCM Inc.
Related Party Transaction [Line Items]
Cash distributions declared to members	$ 18.2	$ 25.9	$ 42.5	$ 39

Related Party Transactions (S_5

Related Party Transactions (Schedule of Amounts Due to Founding Members, Net) (Details) - USD ($) $ in Millions	Sep. 27, 2018	Dec. 28, 2017
Related Party Transaction [Line Items]
Theater access fees, net of beverage revenues and other encumbered theater payments	$ 3.6	$ 4
Distributions payable to founding members	19.1	37.6
Integration payments due from founding members	(5.1)	(8.9)
Cost and other reimbursement	(0.1)
Total amounts due (from) to founding members, net	17.5	32.7
AMC
Related Party Transaction [Line Items]
Theater access fees, net of beverage revenues and other encumbered theater payments	1.3	1.5
Distributions payable to founding members	0	10.8
Integration payments due from founding members	(4.8)	(8.5)
Cost and other reimbursement	(0.1)
Total amounts due (from) to founding members, net	(3.6)	3.8
Cinemark
Related Party Transaction [Line Items]
Theater access fees, net of beverage revenues and other encumbered theater payments	0.9	1
Distributions payable to founding members	9.4	13.5
Integration payments due from founding members	(0.3)	(0.4)
Cost and other reimbursement	0
Total amounts due (from) to founding members, net	10	14.1
Regal
Related Party Transaction [Line Items]
Theater access fees, net of beverage revenues and other encumbered theater payments	1.4	1.5
Distributions payable to founding members	9.7	13.3
Integration payments due from founding members	0	0
Cost and other reimbursement	0
Total amounts due (from) to founding members, net	$ 11.1	$ 14.8

Borrowings (Schedule of Outstan

Borrowings (Schedule of Outstanding Debt) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 27, 2018	Dec. 28, 2017	Aug. 19, 2016	Apr. 27, 2012
Debt Instrument [Line Items]
Long-term Debt	$ 917.5	$ 923.3
Carrying value of long-term debt	914.8	923.3
Less: current portion of debt	(2.7)	0
NCM, LLC.
Debt Instrument [Line Items]
Outstanding borrowings	925.7	932
Less: debt issuance costs related to term loans and senior notes	$ (8.2)	(8.7)
NCM, LLC. | Senior secured notes due 2022
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Apr. 15, 2022
Outstanding borrowings	$ 400	400
Interest Rate	6.00%			6.00%
NCM, LLC. | Senior unsecured notes due 2026
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Aug. 15, 2026
Outstanding borrowings	$ 242.3	250
Interest Rate			5.75%
NCM, LLC. | Term loans
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Jun. 20, 2025
Outstanding borrowings	$ 269.4	270
NCM, LLC. | Revolving credit facility
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Jun. 20, 2023
Outstanding borrowings	$ 14	$ 12

Borrowings (Narrative) (Details

Borrowings (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 27, 2018USD ($)	Jun. 28, 2018	Sep. 27, 2018USD ($)	Sep. 28, 2017USD ($)	Dec. 28, 2017USD ($)	Aug. 19, 2016USD ($)	Apr. 27, 2012USD ($)
Debt Instrument [Line Items]
Cash and cash equivalents used in determining senior secured leverage ratio			$ 100,000,000
Repayment of term loan facility			270,700,000	$ 0
Write-off of debt issuance costs			900,000	$ 0
NCM, LLC.
Debt Instrument [Line Items]
Debt Instrument, carrying value	$ 925,700,000		925,700,000		$ 932,000,000
NCM, LLC. | Senior Secured Credit Facility
Debt Instrument [Line Items]
Capitalized debt issuance costs	$ 6,500,000		6,500,000
Non-operating loss related to debt issuance costs			$ 1,200,000
Net total leverage ratio, covenant	6.25		6.25
Net senior secured leverage ratio	4.50		4.50
Senior secured leverage ratio	290.00%		290.00%
Net total leverage ratio	4		4
NCM, LLC. | Senior secured notes due 2022
Debt Instrument [Line Items]
Debt Instrument, carrying value	$ 400,000,000		$ 400,000,000		400,000,000
Debt instrument face amount							$ 400,000,000
Stated interest rate	6.00%		6.00%				6.00%
Date of first required interest payment			Oct. 15, 2012
Debt instrument, frequency of periodic payment			The Notes due 2022 pay interest semi-annually in arrears on April 15 and October 15 of each year, which commenced on October 15, 2012.
Debt instrument issued percentage of face value						100.00%
NCM, LLC. | Senior unsecured notes due 2026
Debt Instrument [Line Items]
Debt Instrument, carrying value	$ 242,300,000		$ 242,300,000		250,000,000
Debt instrument face amount	242,300,000		$ 242,300,000			$ 250,000,000
Stated interest rate						5.75%
Date of first required interest payment			Feb. 15, 2017
Debt instrument, frequency of periodic payment			The Notes due 2026 pay interest semi-annually in arrears on February 15 and August 15 of each year, which commenced on February 15, 2017.
Debt instrument issued percentage of face value						100.00%
Debt instrument, repurchase amount	7,700,000		$ 7,700,000
Write-off of debt issuance costs	$ 300,000		$ 300,000
NCM, LLC. | Maximum | Senior Secured Credit Facility
Debt Instrument [Line Items]
Net senior secured leverage ratio	5.50		5.50
NCM, LLC. | Term loans
Debt Instrument [Line Items]
Debt Instrument, carrying value	$ 269,400,000		$ 269,400,000		270,000,000
Weighted-average interest rate	5.20%		5.20%
Amortization rate			1.00%
Repayment of term loan facility			$ 600,000
NCM, LLC. | Term loans | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate, percent	3.00%	2.75%
NCM, LLC. | Term loans | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate, percent	2.00%	1.75%
NCM, LLC. | Revolving credit facility
Debt Instrument [Line Items]
Borrowing amount of credit facility	$ 175,000,000		175,000,000
Debt Instrument, carrying value	14,000,000		14,000,000		$ 12,000,000
Remaining borrowing capacity of credit facility	156,200,000		$ 156,200,000
Unused line fee, percent			0.50%
NCM, LLC. | Revolving credit facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate, percent		2.00%
NCM, LLC. | Revolving credit facility | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate, percent			1.75%
NCM, LLC. | Revolving credit facility | LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate, percent			2.25%
NCM, LLC. | Revolving credit facility | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate, percent		1.00%
NCM, LLC. | Revolving credit facility | Base Rate | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate, percent			0.75%
NCM, LLC. | Revolving credit facility | Base Rate | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate, percent			1.25%
NCM, LLC. | Revolving credit facility | Letter of Credit
Debt Instrument [Line Items]
Outstanding letters of credit	$ 4,800,000		$ 4,800,000

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Dec. 28, 2017
Income Tax Contingency [Line Items]
Unrecognized tax benefits	$ 0		$ 0.3
Reasonably possible decrease in unrecognized tax benefits	0.3
Reserve for unrecognized tax benefits	$ 0
Tax effect measurement extension period	1 year
Measurement period adjustment related to the TRA	$ (8.6)
Increase to deferred tax assets related to the TRA	$ (2.2)
Effective tax rate	55.30%	5.40%
Decrease in tax rate following enactment of Tax Cuts and Jobs Act	13.50%
State and Federal
Income Tax Contingency [Line Items]
Effective tax rate	25.60%	38.60%

Commitments and Contingencies (

Commitments and Contingencies (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017	Dec. 28, 2017
Other Commitments [Line Items]
Maximum potential payment	$ 76,700,000		$ 76,700,000
Guarantee obligations amount paid	700,000	$ 0	700,000	$ 0
Additional amount accrued related to minimum guarantees	300,000		300,000		$ 0
NCM, LLC. | Founding Members
Other Commitments [Line Items]
Liabilities recorded for related party obligations	$ 0		$ 0		$ 0
Percentage of increase in payment per theatre patron			8.00%
Term of increase in payment percentage per theater patron			5 years
Percentage of increase in payment per digital screen and digital cinema equipment			5.00%
Minimum
Other Commitments [Line Items]
Range of terms, in years			1 year
Minimum | NCM, LLC. | Founding Members
Other Commitments [Line Items]
Aggregate percentage of theater access fee paid	12.00%		12.00%
Maximum
Other Commitments [Line Items]
Range of terms, in years			20 years

Fair Value Measurements (Schedu

Fair Value Measurements (Schedule of Other Investments) (Details) - USD ($) $ in Millions	Sep. 27, 2018	Dec. 28, 2017
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Other investments	$ 2.1	$ 2.5
Total other investments	3.2	3.5
AC JV, LLC
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Investment in AC JV, LLC	$ 1.1	$ 1

Fair Value Measurements (Sche_2

Fair Value Measurements (Schedule of Other Investments) (Additional Information) (Details)	9 Months Ended	12 Months Ended
	Sep. 27, 2018	Dec. 28, 2017
Maximum
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Cost-method ownership percentage	20.00%	20.00%

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017	Dec. 28, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of investment	$ 0	$ 0	$ 0.4	$ 3.1
Founding Members
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Promissory notes receivable from founding members	8.3		8.3		$ 8.3
Impaired Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of cost method investment	$ 0	$ 0.1	$ 0	$ 0.1

Fair Value Measurements (Estima

Fair Value Measurements (Estimated Fair Values of Company's Financial Instruments) (Details) - USD ($) $ in Millions	Sep. 27, 2018	Dec. 28, 2017
Term loans | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	$ 269.4	$ 270
Term loans | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	270.2	270.8
Notes due 2022 | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	400	400
Notes due 2022 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	406.5	407.3
Notes due 2026 | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	242.3	250
Notes due 2026 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	$ 239	$ 235

Fair Value Measurements (Fair V

Fair Value Measurements (Fair Values of the Company's Assets and Liabilities) (Details) - USD ($) $ in Millions	Sep. 27, 2018	Dec. 28, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	$ 29.2	$ 13.1
Long-term marketable securities	10.2	16.2
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	12.7	12.2
Short-term marketable securities	29.2	13.1
Long-term marketable securities	10.2	16.2
Total assets	52.1	41.5
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	10.2	8.2
Total assets	10.2	8.2
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	2.5	4
Short-term marketable securities	29.2	13.1
Long-term marketable securities	10.2	16.2
Total assets	$ 41.9	$ 33.3

Fair Value Measurements (Fair_2

Fair Value Measurements (Fair Values of the Company's Assets and Liabilities) (Additional Information) (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 27, 2018	Dec. 28, 2017
Fair Value Disclosures [Abstract]
Gross unrealized losses related to individual securities	$ 0.2	$ 0.2
Gross unrealized losses related to individual securities had been in continuous loss position for 12 months or longer	$ 11.7	$ 8.2

Fair Value Measurements (Sche_3

Fair Value Measurements (Schedule of Marketable Securities) (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 27, 2018	Dec. 28, 2017
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost Basis	$ 39.7	$ 29.6
Aggregate Fair Value - Short term marketable securities	29.2	13.1
Aggregate Fair Value - Long term marketable securities	10.2	16.2
Aggregate Fair Value - Total marketable securities	39.4	29.3
Short-term Marketable Securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost Basis	29.3	13.2
Aggregate Fair Value - Short term marketable securities	29.2	13.1
Short-term Marketable Securities | Municipal Bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost Basis	0.5
Aggregate Fair Value - Short term marketable securities	$ 0.5
Maturities	4 months 24 days
Short-term Marketable Securities | U.S. Government Agency Bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost Basis	$ 5.4	2.3
Aggregate Fair Value - Short term marketable securities	$ 5.4	$ 2.2
Maturities	7 months 6 days	10 months 24 days
Short-term Marketable Securities | Certificates of Deposit
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost Basis	$ 2.6	$ 0.9
Aggregate Fair Value - Short term marketable securities	$ 2.6	$ 0.9
Maturities	6 months	9 months 18 days
Short-term Marketable Securities | Financial Commercial Paper
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost Basis	$ 5.8	$ 6
Aggregate Fair Value - Short term marketable securities	$ 5.8	$ 6
Maturities	2 months 12 days	3 months 18 days
Short-term Marketable Securities | Industrial Commercial Paper
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost Basis	$ 15	$ 4
Aggregate Fair Value - Short term marketable securities	$ 14.9	$ 4
Maturities	2 months 12 days	3 months 18 days
Long-term Marketable Securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost Basis	$ 10.4	$ 16.4
Aggregate Fair Value - Long term marketable securities	10.2	16.2
Long-term Marketable Securities | Municipal Bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost Basis	1.2	1.9
Aggregate Fair Value - Long term marketable securities	$ 1.3	$ 1.9
Maturities	1 year 9 months 18 days	2 years 1 month 6 days
Long-term Marketable Securities | U.S. Government Agency Bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost Basis	$ 6.5	$ 10.4
Aggregate Fair Value - Long term marketable securities	$ 6.3	$ 10.2
Maturities	2 years 3 months 18 days	2 years 6 months
Long-term Marketable Securities | Certificates of Deposit
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost Basis		$ 4.1
Aggregate Fair Value - Long term marketable securities		$ 4.1
Maturities		1 year 9 months 18 days
Long-term Marketable Securities | Financial Certificates Of Deposit
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost Basis	$ 2.7
Aggregate Fair Value - Long term marketable securities	$ 2.6
Maturities	1 year 7 months 6 days

Subsequent Event (Narrative) (D

Subsequent Event (Narrative) (Details) - Subsequent Event $ / shares in Units, $ in Millions	Nov. 05, 2018USD ($)$ / shares
Subsequent Events [Line Items]
Dividends payable, date declared	Nov. 5, 2018
Cash dividends declared (in usd per share) | $ / shares	$ 0.17
Dividends payable | $	$ 13.1
Dividends payable, date of record	Nov. 15, 2018
Dividends payable, date to be paid	Nov. 30, 2018