Post (POST) 10-Q 4 Aug 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Jun. 30, 2017	Jul. 31, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	Post Holdings, Inc.
Entity Central Index Key	1,530,950
Current Fiscal Year End Date	--09-30
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		66,156,938

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net Sales	$ 1,272.1	$ 1,246.1	$ 3,777.3	$ 3,766
Cost of goods sold	878.4	847.9	2,640.3	2,596
Gross Profit	393.7	398.2	1,137	1,170
Selling, general and administrative expenses	164.2	216	615.6	608.6
Amortization of intangible assets	38.9	38.2	116.8	114.4
Other operating expenses, net	0.1	2	0.4	9.6
Operating Profit (Loss)	190.5	142	404.2	437.4
Interest expense, net	76.5	77.3	229.6	232.3
Loss on extinguishment of debt	160.4	0	222.9	0
Other expense (income), net	45.2	62.6	(100.3)	169.4
(Loss) Earnings before Income Taxes	(91.6)	2.1	52	35.7
Income tax (benefit) expense	(32.1)	(1.2)	17.9	2
Net (Loss) Earnings	(59.5)	3.3	34.1	33.7
Preferred stock dividends	(3.4)	(3.3)	(10.2)	(21.7)
Net (Loss) Earnings Available to Common Shareholders	$ (62.9)	$ 0	$ 23.9	$ 12
(Loss) Earnings per Share, Basic (in usd per share)	$ (0.93)	$ 0	$ 0.35	$ 0.17
(Loss) Earnings per Share, Diluted (in usd per share)	$ (0.93)	$ 0	$ 0.34	$ 0.17
Weighted-Average Common Shares Outstanding, Basic (in shares)	67.5	69.2	68.3	68.6
Weighted-Average Common Shares Outstanding, Diluted (in shares)	67.5	69.2	69.8	70.1

Condensed Consolidated Stateme3

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net (Loss) Earnings	$ (59.5)	$ 3.3	$ 34.1	$ 33.7
Pension and postretirement benefits adjustments:
Unrealized pension and postretirement benefit obligations	0	0	0	1.6
Reclassifications to net (loss) earnings	(0.5)	(0.7)	(1.7)	(0.2)
Unrealized gain on plan amendment	0	0	0	36.1
Cash flow hedge adjustments:
Unrealized net (loss) on derivatives designated as cash flow hedges	(2.7)	0	(2.7)	0
Reclassifications to net (loss) earnings	0.3	0	0.3	0
Foreign currency translation adjustments:
Unrealized foreign currency translation adjustments	2.1	(0.2)	0.8	9.7
Reclassifications to net (loss) earnings	0	0	0	(1.3)
Tax benefit (expense) on other comprehensive (loss) income	1.2	0.3	1.7	(14.3)
Total Comprehensive (Loss) Income	$ (59.1)	$ 2.7	$ 32.5	$ 65.3

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2017	Sep. 30, 2016
Assets
Cash and cash equivalents	$ 2,472.7	$ 1,143.6
Restricted cash	5.9	8.4
Receivables, net	480.3	385
Inventories	526.6	503.1
Prepaid expenses and other current assets	34.7	36.8
Total Current Assets	3,520.2	2,076.9
Property, net	1,366.9	1,354.4
Goodwill	3,126	3,079.7
Other intangible assets, net	2,768.3	2,833.7
Other assets	22.8	15.9
Total Assets	10,804.2	9,360.6
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current portion of long-term debt	22.7	12.3
Accounts payable	214.8	264.4
Other current liabilities	309.8	357.3
Total Current Liabilities	547.3	634
Long-term debt	6,368.5	4,551.2
Deferred income taxes	793.1	726.5
Other liabilities	344.2	440.3
Total Liabilities	8,053.1	6,352
Shareholders' Equity
Preferred stock	0	0
Common stock	0.7	0.7
Additional paid-in capital	3,569.8	3,546
Accumulated deficit	(390.2)	(424.3)
Accumulated other comprehensive loss	(62)	(60.4)
Treasury stock, at cost	(367.2)	(53.4)
Total Shareholders’ Equity	2,751.1	3,008.6
Total Liabilities and Shareholders’ Equity	$ 10,804.2	$ 9,360.6

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash Flows from Operating Activities:
Net Earnings	$ 34.1	$ 33.7
Adjustments to reconcile of net earnings to net cash (used in) provided by operating activities:
Depreciation and amortization	232.9	226.9
Unrealized (gain) loss on interest rate and cross-currency swaps	(101.8)	169.4
Loss on extinguishment of debt	222.9	0
Gain on foreign currency	(34.9)	(0.3)
Assets held for sale	(0.2)	9.5
Non-cash stock-based compensation expense	17.4	12.9
Deferred income taxes	49.6	(61.9)
Other, net	1.3	1.2
Other changes in current assets and liabilities, net of business acquisitions:
(Increase) decrease in receivables, net	(87)	14.3
Increase in inventories	(21)	(41.4)
Increase in prepaid expenses and other current assets	(0.1)	(8.4)
(Decrease) increase in accounts payable and other current liabilities	(106.1)	6.6
Increase in non-current liabilities	1.1	5
Net Cash Provided by Operating Activities	208.2	367.5
Cash Flows from Investing Activities:
Business acquisitions, net of cash acquired	(90.2)	(94.4)
Additions to property	(125)	(81.1)
Restricted cash	2.5	16.1
Proceeds from sale of property and assets held for sale	10.5	1.8
Proceeds from sale of businesses	0	6.7
Net Cash Used in Investing Activities	(202.2)	(150.9)
Cash Flows from Financing Activities:
Proceeds from issuance of long-term debt	3,950	0
Repayments of long-term debt	(2,082.2)	(11.6)
Purchases of treasury stock	(313.8)	0
Payments of preferred stock dividends	(10.2)	(11)
Preferred stock conversion	0	(10.9)
Payments of debt issuance costs and deferred financing costs	(52.4)	0
Payments of tender premiums on debt extinguishment	(219.8)	0
Proceeds from exercise of stock awards	13.4	6.6
Net cash received from stock repurchase contracts	0	1.1
Other, net	3.2	0.2
Net Cash Provided by (Used in) Financing Activities	1,288.2	(25.6)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	34.9	0.8
Net Increase in Cash and Cash Equivalents	1,329.1	191.8
Cash and Cash Equivalents, Beginning of Year	1,143.6	841.4
Cash and Cash Equivalents, End of Period	$ 2,472.7	$ 1,033.2

Basis of Presentation

Basis of Presentation	9 Months Ended
	Jun. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	BASIS OF PRESENTATION These unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”), under the rules and regulations of the United States Securities and Exchange Commission (the “SEC”), and on a basis substantially consistent with the audited consolidated financial statements of Post Holdings, Inc. (herein referred to as “Post,” “the Company,” “us,” “our” or “we”) as of and for the fiscal year ended September 30, 2016. These unaudited condensed consolidated financial statements should be read in conjunction with such audited consolidated financial statements which are included in the Company’s Annual Report on Form 10-K for the fiscal year ended September 30, 2016, filed with the SEC on November 18, 2016. These unaudited condensed consolidated financial statements include all adjustments (consisting of normal recurring adjustments and accruals) that management considers necessary for a fair statement of the Company’s results of operations, comprehensive (loss) income, financial position and cash flows for the interim periods presented. Interim results are not necessarily indicative of the results for any other interim period or for the entire fiscal year. Certain prior year amounts have been reclassified to conform with the 2017 presentation. These reclassifications had no impact on net (loss) earnings or shareholders’ equity, as previously reported.

Recently Issued Accounting Stan

Recently Issued Accounting Standards (Notes)	9 Months Ended
	Jun. 30, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recently Issued Accounting Standards	RECENTLY ISSUED ACCOUNTING STANDARDS The Company has considered all new accounting pronouncements, and has concluded there are no new recently issued pronouncements (other than the ones described below) that had or will have an impact on the results of operations, financial condition or cash flows based on current information. In March 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2017-07, “Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost.” ASU 2017-07 requires an entity to report the service cost component of periodic net benefit cost in the same line item or items as other compensation costs arising from services rendered by employees during the period. Other components of net benefit cost are to be presented in the income statement separately from the service cost component. The amendments in the ASU also allow only the service cost component to be eligible for capitalization when applicable. This ASU is effective for annual periods beginning after December 15, 2017, and interim periods therein (i.e., Post’s financial statements for the year ending September 30, 2019) with early adoption permitted. Additionally, the ASU requires a retrospective method of adoption. The adoption of this guidance will impact the presentation and classification of the components of net periodic benefit cost (gain) for the plans presented in Note 15, however, the impact is not expected to be material. In January 2017, the FASB issued ASU 2017-04, “Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.” ASU 2017-04 eliminates step 2 of the goodwill impairment test, which requires the calculation of the implied fair value of goodwill to measure a goodwill impairment charge. Under this ASU, an entity should perform its annual or interim goodwill impairment test by comparing the fair value of the reporting unit with its carrying amount, and should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value with the loss not exceeding the total amount of goodwill allocated to that reporting unit. This ASU is effective for annual periods beginning after December 15, 2019, and interim periods therein (i.e., Post’s financial statements for the year ending September 30, 2021) with early adoption permitted for interim or annual goodwill impairment tests performed after January 1, 2017. Additionally, the ASU requires a prospective method of adoption. The Company is currently evaluating the timing of adopting this ASU. The adoption of this new guidance would affect those reporting units that fail step 1 of the annual goodwill impairment test. At September 30, 2016, the Dymatize reporting unit failed step 1 and subsequently passed step 2, resulting in no impairment charge being recorded. All other reporting units passed step 1 of the goodwill impairment test at September 30, 2016, the last goodwill impairment evaluation date. The impact of this ASU may result in an impairment charge which could be material to the Company. In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business.” ASU 2017-01 adds guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses by providing a more specific definition of a business. This ASU is effective for annual periods beginning after December 15, 2017, and interim periods therein (i.e., Post’s financial statements for the year ending September 30, 2019) with early adoption permitted. This ASU currently has no impact on the Company, however, Post will evaluate the impact of this ASU on future business acquisitions and disposals. In December 2016, the FASB issued ASU 2016-20, “Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers.” ASU 2016-20 is intended to clarify and suggest improvements to the application of current standards under Topic 606 and other Topics amended by ASU 2014-09, “Revenue from Contracts with Customers (Topic 606).” The effective date of this ASU is the same as the effective date for ASU 2014-09 (i.e., Post’s financial statements for the year ending September 30, 2019).The Company is in the initial stages of assessing the impact that these standards will have on its accounting policies, processes, system requirements, internal controls, and disclosures. Internal resources have been assigned to this assessment, and the Company has engaged a third party to assist in the assessment and implementation. The Company has begun to assess the impact that these standards will have on the financial statements. It has not yet been determined if the full retrospective or the modified retrospective method will be applied. In November 2016, the FASB issued ASU 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash.” ASU 2016-18 requires that a statement of cash flows explain the change in the total of cash, cash equivalents and amounts generally described as restricted cash or restricted cash equivalents, and therefore, restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning of year cash balance to the end of year cash balance as shown on the statement of cash flows. This ASU is effective for annual periods beginning after December 15, 2017, and interim periods therein (i.e., Post’s financial statements for the year ending September 30, 2019) with early adoption permitted. The Company currently classifies changes in restricted cash as an investing activity in the Condensed Consolidated Statements of Cash Flows, not as a component of cash and cash equivalents as required by this ASU. In March 2016, the FASB issued ASU 2016-09, “Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.” The updated guidance changes the accounting for certain aspects of share-based payment awards to employees, including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification of certain items in the statement of cash flows. This ASU is effective for annual periods beginning after December 15, 2016, and interim periods therein (i.e., Post’s financial statements for the year ending September 30, 2018) with early adoption permitted. The Company will adopt and implement this ASU in the fourth quarter of fiscal 2017 and does not expect the impact to be material.

Restructuring

Restructuring	9 Months Ended
	Jun. 30, 2017
Restructuring and Related Activities [Abstract]
Restructuring	RESTRUCTURING In September 2015, the Company announced its plan to close its Dymatize manufacturing facility located in Farmers Branch, Texas and permanently transfer production to third party facilities under co-manufacturing agreements. Plant production ceased in the fourth quarter of 2015, and the facility was sold in December 2016. No additional restructuring costs have been incurred or are expected to be incurred in fiscal 2017. In May 2015, the Company announced its plan to consolidate its cereal business administrative offices into its Lakeville, Minnesota location. In connection with the consolidation, the Company closed its office located in Parsippany, New Jersey and relocated those functions as well as certain functions located in Battle Creek, Michigan to the Lakeville office. The Parsippany office closure was completed in fiscal 2016. No additional restructuring costs have been incurred or are expected to be incurred in fiscal 2017. Restructuring charges and the related liabilities are shown in the following table. Employee-Related Costs Accelerated Depreciation Total Balance at September 30, 2015 $ 10.5 $ — $ 10.5 Charge to expense 2.1 0.4 2.5 Cash payments (9.0 ) — (9.0 ) Non-cash charges (0.9 ) (0.4 ) (1.3 ) Balance at June 30, 2016 $ 2.7 $ — $ 2.7 Balance at September 30, 2016 $ 1.1 $ — $ 1.1 Charge to expense — — — Cash payments (1.0 ) — (1.0 ) Non-cash charges — — — Balance at June 30, 2017 $ 0.1 $ — $ 0.1 Total expected restructuring charge $ 12.6 $ 2.5 $ 15.1 Cumulative restructuring charges incurred to date 12.6 2.5 15.1 Remaining expected restructuring charge $ — $ — $ — In the three and nine months ended June 30, 2016, the Company incurred total restructuring charges of $0.8 and $2.5 , respectively, which were reported in “Selling, general and administrative expenses” in the Condensed Consolidated Statements of Operations. No restructuring expenses have been incurred in fiscal 2017. These expenses are not included in the measure of segment performance (see Note 17). Assets Held for Sale Related to the closure of its Modesto, California facility in September 2014, the Company had land, building and equipment classified as assets held for sale at September 30, 2016. The carrying value of the assets included in “Prepaid expenses and other current assets” in the Condensed Consolidated Balance Sheets was $4.3 as of September 30, 2016. The land, building and equipment were sold in March 2017. Related to the manufacturing shutdown of its Farmers Branch, Texas facility, the Company had land and buildings classified as assets held for sale as of September 30, 2016. The carrying value of the assets included in “Prepaid expenses and other current assets” on the Condensed Consolidated Balance Sheets was $5.8 as of September 30, 2016. The land and buildings were sold in December 2016. Net gains of $0.2 were recorded in the nine months ended June 30, 2017, to adjust the carrying value of the assets to their fair value less estimated selling costs. Held for sale losses of $1.1 and $9.5 were recorded in the three and nine months ended June 30, 2016, respectively, to adjust the carrying value of the assets to their fair value less estimated selling costs. These gains and losses are reported as “Other operating expenses, net” in the Condensed Consolidated Statements of Operations. This income and expense is not included in the measure of segment performance (see Note 17). There were no assets held for sale at June 30, 2017.

Business Combinations

Business Combinations	9 Months Ended
	Jun. 30, 2017
Business Combinations [Abstract]
Business Combinations	BUSINESS COMBINATIONS On October 3, 2016, the Company completed its acquisition of National Pasteurized Eggs, Inc. (“NPE”) for $93.5 , subject to net working capital and other adjustments, resulting in a payment of $97.0 . In February 2017, a final settlement of net working capital was reached, resulting in an amount back to the Company of $1.2 . In addition, the Company acquired an income tax receivable of $0.7 that is due back to the sellers. NPE is a producer of pasteurized shell eggs, including cage-free and hard boiled eggs. NPE is reported in Post’s Michael Foods Group segment (see Note 17). Based upon the preliminary purchase price allocation, the Company recorded $43.9 of customer relationships to be amortized over a weighted-average period of 16 years and $7.5 of trademarks and brands to be amortized over a weighted-average period of 20 years. NPE operations have been integrated into the Michael Foods business, and due to the level of integration, discrete sales and operating profit data for the three and nine months ended June 30, 2017 is not available for NPE. On October 3, 2015, the Company completed its acquisition of Willamette Egg Farms (“WEF”) for $90.0 , subject to working capital and other adjustments, resulting in a payment at closing of $109.0 . In December 2015, a final settlement of net working capital and other adjustments was reached, resulting in an additional amount paid by the Company of $4.6 . WEF is a producer, processor and wholesale distributor of eggs and egg products and is also reported in Post’s Michael Foods Group segment (see Note 17). Each of the acquisitions was accounted for using the acquisition method of accounting, whereby the results of operations are included in the financial statements from the date of acquisition. The respective purchase prices were allocated to acquired assets and assumed liabilities based on their estimated fair values at the date of acquisition, and any excess was allocated to goodwill, as shown in the table below. Goodwill represents the value the Company expects to achieve through the implementation of operational synergies and the expansion of the business into new or growing segments of the industry. The Company does not expect the final fair value of goodwill related to the acquisition of NPE to be deductible for U.S. income tax purposes. Certain estimated values for the NPE acquisition, including property, goodwill, other intangible assets and deferred taxes, are not yet finalized pending the final purchase price allocation and are subject to change once additional information is obtained. The following table provides the preliminary allocation of the purchase price related to the acquisition of NPE based upon the fair value of assets and liabilities assumed. Measurement period adjustments have been made to the allocation of purchase price for the acquisition of NPE since the date of acquisition related to working capital settlements, updated valuations of property and intangibles, income tax receivable and deferred taxes. Cash and cash equivalents $ 5.6 Receivables 8.5 Inventories 2.1 Prepaid expenses and other current assets 0.4 Property 10.4 Goodwill 46.3 Other intangible assets 51.4 Current portion of capital lease (0.1 ) Accounts payable (6.3 ) Other current liabilities (2.9 ) Long-term capital lease (0.2 ) Deferred tax liability - long-term (18.7 ) Total acquisition cost $ 96.5 Acquisition Subsequent to Period End On July 3, 2017, subsequent to the periods presented in these statements, the Company completed its acquisition of Latimer Newco 2 Limited, a company registered in England and Wales (“Latimer”), and all of Latimer’s direct and indirect subsidiaries, including Weetabix Limited (collectively “Weetabix”). For additional information, see Note 18. This transaction will be accounted for as a business combination under the acquisition method of accounting. The Company will record the assets acquired and liabilities assumed at their fair values as of the acquisition date. Due to the limited time since closing of the acquisition, the valuation efforts and related acquisition accounting are incomplete at the time of filing of the condensed consolidated financial statements. As a result, the Company is unable to provide amounts recognized as of the acquisition date for major classes of assets and liabilities acquired, including property, plant and equipment, intangible assets and goodwill. In addition, because the acquisition accounting is incomplete, the Company is unable to provide the supplemental pro forma revenue and earnings for the combined entity, as the pro forma adjustments are expected to primarily consist of estimates for the depreciation of property, plant and equipment, amortization of identifiable intangible assets acquired and related income tax effects which will result from the purchase price allocation and determination of the fair values for the assets acquired and liabilities assumed. During the three and nine months ended June 30, 2017, the Company recorded net foreign currency gains of $33.5 related to cash held in pounds sterling (GBP) to fund the acquisition of Weetabix, which were recorded in “Selling, general and administrative expenses” in the Condensed Consolidated Statements of Operations. Transaction related costs The Company incurred acquisition and divestiture related expenses of $3.3 and $6.8 during the three and nine months ended June 30, 2017, respectively, and $5.1 and $7.3 during the three and nine months ended June 30, 2016, respectively. The costs are recorded as “Selling, general and administrative expenses,” and include amounts for transactions that were signed, spending for due diligence on potential acquisitions that were not signed or announced at the time of the Company’s reporting, and spending for divestiture transactions. Pro Forma Information The following unaudited pro forma information presents a summary of the results of operations of the Company combined with the aggregate results of NPE and WEF for the periods presented as if the fiscal 2017 acquisition of NPE had occurred on October 1, 2015 and the fiscal 2016 acquisition of WEF had occurred on October 1, 2014, along with certain pro forma adjustments. These pro forma adjustments give effect to the amortization of certain definite-lived intangible assets, adjusted depreciation based upon fair value of assets acquired, interest expense related to the financing of the business combinations, inventory revaluation adjustments on acquired businesses and related income taxes. The following unaudited pro forma information has been prepared for comparative purposes only and is not necessarily indicative of the results of operations as they would have been had the acquisitions occurred on the assumed dates, nor is it necessarily an indication of future operating results. Three Months Ended Nine Months Ended 2017 2016 2017 2016 Pro forma net sales $ 1,272.1 $ 1,275.0 $ 3,777.3 $ 3,859.9 Pro forma net (loss) earnings available to common shareholders $ (62.8 ) $ 1.7 $ 24.1 $ 18.5 Pro forma basic (loss) earnings per common share $ (0.93 ) $ 0.02 $ 0.35 $ 0.27 Pro forma diluted (loss) earnings per common share $ (0.93 ) $ 0.02 $ 0.35 $ 0.26

Goodwill (Notes)

Goodwill (Notes)	9 Months Ended
	Jun. 30, 2017
Goodwill [Abstract]
Goodwill	GOODWILL The changes in the carrying amount of goodwill by segment are noted in the following table. Post Consumer Brands Michael Foods Group Active Nutrition Private Brands Total Balance, September 30, 2016 Goodwill (gross) $ 1,994.0 $ 1,345.8 $ 180.7 $ 256.6 $ 3,777.1 Accumulated impairment losses (609.1 ) — (88.3 ) — (697.4 ) Goodwill (net) $ 1,384.9 $ 1,345.8 $ 92.4 $ 256.6 $ 3,079.7 Goodwill acquired — 46.3 — — 46.3 Balance, June 30, 2017 Goodwill (gross) $ 1,994.0 $ 1,392.1 $ 180.7 $ 256.6 $ 3,823.4 Accumulated impairment losses (609.1 ) — (88.3 ) — (697.4 ) Goodwill (net) $ 1,384.9 $ 1,392.1 $ 92.4 $ 256.6 $ 3,126.0

Income Taxes

Income Taxes	9 Months Ended
	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The effective income tax rate was 35.0% and 34.4% for the three and nine months ended June 30, 2017, respectively, and (57.1)% and 5.6% for the three and nine months ended June 30, 2016, respectively. In accordance with Accounting Standards Codification (“ASC”) Topic 740, the Company records income tax (benefit) expense for the interim periods using the estimated annual effective tax rate for the full fiscal year adjusted for the impact of discrete items occurring during the three and nine month periods. In the fiscal 2016 periods, the effective tax rate differed significantly from the statutory rate as a result of discrete items occurring in the nine months ended June 30, 2016 primarily relating to the Company’s decision to exit its Canadian egg business reported in the Michael Foods Group segment and the expectation that the domestic production activities deduction would have a favorable impact on the effective income tax rate.

Intangible Assets, net

Intangible Assets, net	9 Months Ended
	Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets, net	INTANGIBLE ASSETS, NET Total intangible assets are as follows: June 30, 2017 September 30, 2016 Carrying Accumulated Amortization Net Carrying Accumulated Amortization Net Subject to amortization: Customer relationships $ 2,056.6 $ (385.9 ) $ 1,670.7 $ 2,012.7 $ (302.0 ) $ 1,710.7 Trademarks/brands 802.6 (151.9 ) 650.7 795.1 (120.6 ) 674.5 Other intangible assets 21.7 (9.3 ) 12.4 21.7 (7.7 ) 14.0 2,880.9 (547.1 ) 2,333.8 2,829.5 (430.3 ) 2,399.2 Not subject to amortization: Trademarks/brands 434.5 — 434.5 434.5 — 434.5 $ 3,315.4 $ (547.1 ) $ 2,768.3 $ 3,264.0 $ (430.3 ) $ 2,833.7

(Loss) Earnings Per Share

(Loss) Earnings Per Share	9 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
(Loss) Earnings per Share	(LOSS) EARNINGS PER SHARE Basic (loss) earnings per share is based on the average number of common shares outstanding during the period. Diluted (loss) earnings per share is based on the average number of shares used for the basic (loss) earnings per share calculation, adjusted for the dilutive effect of stock options, stock appreciation rights and restricted stock equivalents using the “treasury stock” method. The impact of potentially dilutive convertible preferred stock is calculated using the “if-converted” method. The purchase contract component of the Company’s tangible equity units (“TEUs”) are assumed to be settled at the minimum settlement amount of 1.7114 shares per TEU for weighted-average shares for basic (loss) earnings per share. For diluted (loss) earnings per share, the shares, to the extent dilutive, are assumed to be settled at a conversion factor based on the Company’s daily volume-weighted-average price per share of the Company’s common stock not to exceed 2.0964 shares per TEU. All TEU purchase contracts were settled as of June 30, 2017 (see Note 16). The following table sets forth the computation of basic and diluted (loss) earnings per share for the three and nine months ended June 30, 2017 and 2016, respectively. Three Months Ended Nine Months Ended 2017 2016 2017 2016 Net (loss) earnings for basic (loss) earnings per share $ (62.9 ) $ — $ 23.9 $ 12.0 Net (loss) earnings for diluted (loss) earnings per share $ (62.9 ) $ — $ 23.9 $ 12.0 Weighted-average shares outstanding 65.9 64.3 64.9 63.7 Effect of TEUs on weighted-average shares for basic (loss) earnings per share 1.6 4.9 3.4 4.9 Weighted-average shares for basic (loss) earnings per share 67.5 69.2 68.3 68.6 Effect of dilutive securities: Stock options — — 1.2 1.1 Stock appreciation rights — — 0.1 0.1 Restricted stock awards — — 0.2 0.3 Total dilutive securities — — 1.5 1.5 Weighted-average shares for diluted (loss) earnings per share 67.5 69.2 69.8 70.1 Basic (loss) earnings per common share $ (0.93 ) $ — $ 0.35 $ 0.17 Diluted (loss) earnings per common share $ (0.93 ) $ — $ 0.34 $ 0.17 The following table details the securities that have been excluded from the calculation of weighted-average shares for diluted (loss) earnings per share as they were anti-dilutive. Three Months Ended Nine Months Ended 2017 2016 2017 2016 Stock options 4.2 4.2 0.3 0.3 Stock appreciation rights 0.1 0.2 — — Restricted stock awards 0.7 0.9 — 0.2 Preferred shares conversion to common 9.1 9.1 9.1 9.1

Inventories

Inventories	9 Months Ended
	Jun. 30, 2017
Inventory [Abstract]
Inventories	INVENTORIES June 30, September 30, Raw materials and supplies $ 120.2 $ 112.4 Work in process 17.3 17.4 Finished products 358.4 339.3 Flocks 30.7 34.0 $ 526.6 $ 503.1

Property, net

Property, net	9 Months Ended
	Jun. 30, 2017
Property, Plant and Equipment [Abstract]
Property, net	PROPERTY, NET June 30, September 30, Property, at cost $ 2,024.0 $ 1,900.3 Accumulated depreciation (657.1 ) (545.9 ) $ 1,366.9 $ 1,354.4

Derivative Financial Instrument

Derivative Financial Instruments and Hedging	9 Months Ended
	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative financial instruments and hedging	DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING In the ordinary course of business, the Company is exposed to commodity price risks relating to the acquisition of raw materials and supplies, interest rate risks relating to floating rate debt, and foreign currency exchange rate risks. The Company utilizes derivative financial instruments, including (but not limited to) futures contracts, option contracts, forward contracts and swaps, to manage certain of these exposures by hedging when it is practical to do so. Certain derivatives do not meet the criteria for hedge accounting or simply are not designated as hedging instruments; nonetheless, they are used to manage the future cost of raw materials and other risks. The Company does not hold or issue financial instruments for speculative or trading purposes. At June 30, 2017 , the Company’s derivative instruments consisted of: Not designated as hedging instruments under ASC Topic 815 • Commodity and energy futures and option contracts which relate to inputs that generally will be utilized within the next 15 months; • foreign currency exchange option contracts that mature in July 2017 and act as a hedge of a portion of the GBP denominated purchase price of Weetabix; • cross-currency swap maturing in July 2022 that requires quarterly cash settlements and will be used as hedges of the Company’s net investment in Weetabix, which is denominated in GBP; • a pay-fixed, receive-variable interest rate swap maturing in May 2021 that requires monthly settlements and effectively hedges interest payments on debt expected to be issued but not yet priced; and • rate-lock interest rate swaps that require lump sum settlements in July 2018 and December 2019 and effectively hedge interest payments on debt expected to be issued but not yet priced. Designated as hedging instruments under ASC Topic 815 • Foreign currency forward contracts used as a cash flow hedge of forecasted Euro denominated capital purchases occurring within the next 20 months against currency fluctuations between Euro and U.S. dollar and • a pay-fixed, receive-variable interest rate swap maturing in May 2024 that requires monthly settlements and is used as a cash flow hedge of forecasted interest payments on our variable rate term loan (see Note 14). The following table shows the notional amounts of derivative instruments held. June 30, September 30, Not designated as hedging instruments under ASC Topic 815: Commodity contracts 77.1 49.8 Energy contracts 32.6 23.6 Foreign exchange contracts - Option contracts, net (a) — — Foreign exchange contracts - Cross-currency swaps 448.7 — Interest rate swap 76.4 77.6 Interest rate swaps - Rate-lock swaps 1,649.3 1,649.3 Designated as hedging instruments under ASC Topic 815: Foreign exchange contracts - Forward contracts 24.0 — Interest rate swap 1,000.0 — a. The foreign exchange option contracts consisted of offsetting put and call options resulting in a net zero notional amount at June 30, 2017. The following table presents the balance sheet location and fair value of the Company’s derivative instruments as of June 30, 2017 and September 30, 2016 , along with the portion designated as hedging instruments under ASC Topic 815. The Company does not offset derivative assets and liabilities within the Condensed Consolidated Balance Sheets. Fair Value Portion Designated as Hedging Instruments Balance Sheet Location June 30, September 30, June 30, September 30, Asset Derivatives: Commodity contracts Prepaid expenses and other current assets $ 4.6 $ 0.6 $ — $ — Energy contracts Prepaid expenses and other current assets 1.6 2.4 — — Foreign exchange contracts Prepaid expenses and other current assets 1.8 — 0.5 — Foreign exchange contracts Other assets 0.3 — 0.3 — $ 8.3 $ 3.0 $ 0.8 $ — Liability Derivatives: Commodity contracts Other current liabilities $ 0.6 $ 3.3 $ — $ — Energy contracts Other current liabilities 0.4 0.2 — — Foreign exchange contracts Other current liabilities 2.0 — — — Foreign exchange contracts Other liabilities 14.0 — — — Interest rate swaps Other current liabilities 2.4 2.0 0.5 — Interest rate swaps Other liabilities 199.6 313.2 2.8 — $ 219.0 $ 318.7 $ 3.3 $ — The following tables present the effects of the Company’s derivative instruments on the Company’s Condensed Consolidated Statements of Operations and Condensed Consolidated Statements of Comprehensive (Loss) Income (“OCI”) for the three months ended June 30, 2017 and 2016. Derivatives Not Designated as Hedging Instruments Statement of Operations Location (Gain) Loss Recognized in Statement of Operations 2017 2016 Commodity contracts Cost of goods sold $ (6.9 ) $ (1.0 ) Energy contracts Cost of goods sold 1.5 (4.1 ) Foreign exchange contracts Selling, general and administrative expenses 0.8 — Foreign exchange contracts Other expense (income), net 14.7 — Interest rate swaps Other expense (income), net 30.5 62.6 Cash Flow Hedges (Gain) Loss Recognized in OCI [Effective Portion] Loss Reclassified from Accumulated OCI into Earnings [Effective Portion] (Gain) Loss Recognized in Earnings [Ineffective Portion and Amount Excluded from Effectiveness Testing] Statement of Operations Location 2017 2016 2017 2016 2017 2016 Foreign exchange contracts $ (0.9 ) $ — $ — $ — $ — $ — Selling, general and administrative expenses Interest rate swaps 3.6 — 0.3 — — — Interest expense, net The following tables present the effects of the Company’s derivative instruments on the Company’s Condensed Consolidated Statements of Operations and Condensed Consolidated Statements of Comprehensive (Loss) Income for the nine months ended June 30, 2017 and 2016. Derivatives Not Designated as Hedging Instruments Statement of Operations Location (Gain) Loss Recognized in Statement of Operations 2017 2016 Commodity contracts Cost of goods sold $ (3.5 ) $ 3.2 Energy contracts Cost of goods sold 1.8 0.8 Foreign exchange contracts Selling, general and administrative expenses 0.9 — Foreign exchange contracts Other expense (income), net 14.7 — Interest rate swaps Other expense (income), net (115.0 ) 169.4 Cash Flow Hedges (Gain) Loss Recognized in OCI [Effective Portion] Loss Reclassified from Accumulated OCI into Earnings [Effective Portion] (Gain) Loss Recognized in Earnings [Ineffective Portion and Amount Excluded from Effectiveness Testing] Statement of Operations Location 2017 2016 2017 2016 2017 2016 Foreign exchange contracts $ (0.9 ) $ — $ — $ — $ — $ — Selling, general and administrative expenses Interest rate swaps 3.6 — 0.3 — — — Interest expense, net Approximately $0.5 of the net cash flow hedge losses reported in accumulated OCI at June 30, 2017 is expected to be reclassified into earnings within the next 12 months. For gains or losses associated with foreign exchange forward contracts, the reclassification will occur on a straight-line basis over the useful life of the related capital assets. For gains or losses associated with interest rate swaps, the reclassification will occur on a straight-line basis over the term of the related debt. At June 30, 2017 and September 30, 2016 , the Company had pledged collateral of $4.2 and $6.1 , respectively, related to its commodity and energy contracts. These amounts are classified as “Restricted cash” on the Condensed Consolidated Balance Sheets.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS The following table represents the Company’s assets and liabilities measured at fair value on a recurring basis and the basis for that measurement according to the levels in the fair value hierarchy in ASC Topic 820. June 30, 2017 September 30, 2016 Total Level 1 Level 2 Total Level 1 Level 2 Assets: Deferred compensation investment $ 13.8 $ 13.8 $ — $ 11.5 $ 11.5 $ — Derivative assets 8.3 — 8.3 3.0 — 3.0 $ 22.1 $ 13.8 $ 8.3 $ 14.5 $ 11.5 $ 3.0 Liabilities: Deferred compensation liabilities $ 19.9 $ — $ 19.9 $ 17.3 $ — $ 17.3 Derivative liabilities 219.0 — 219.0 318.7 — 318.7 $ 238.9 $ — $ 238.9 $ 336.0 $ — $ 336.0 The following table presents the fair value of the Company’s long-term debt which is classified as Level 2 in the fair value hierarchy per ASC Topic 820. The senior notes and term loan are valued utilizing an interest rate derived from an estimated yield curve obtained from independent pricing sources for similar types of borrowing arrangements. The carrying value of the remaining debt approximates fair value because of the short maturities of these financial instruments. June 30, September 30, Senior notes $ 4,374.7 $ 4,835.9 Term loan 2,201.7 — TEUs — 15.0 4.57% 2012 Series Bond maturing September 2017 0.7 1.3 Capital leases 0.2 — $ 6,577.3 $ 4,852.2 The deferred compensation investment is invested primarily in mutual funds and its fair value is measured using the market approach. This investment is in the same funds and purchased in substantially the same amounts as the participants’ selected investment options (excluding Post common stock equivalents), which represent the underlying liabilities to participants in the Company’s deferred compensation plans. Deferred compensation liabilities are recorded at amounts due to participants in cash, based on the fair value of participants’ selected investment options (excluding certain Post common stock equivalents to be distributed in shares) using the market approach. Changes in the deferred compensation investment and related liability are recorded as “Selling, general and administrative expenses” in the Condensed Consolidated Statements of Operations. Commodity and energy derivatives are valued using an income approach based on index prices less the contract rate multiplied by the notional amount. Foreign exchange contracts are valued using the spot rate less the forward rate multiplied by the notional amount. The Company’s calculation of the fair value of interest rate swaps is derived from a discounted cash flow analysis based on the terms of the contract and the interest rate curve. Refer to Note 11 for the classification of changes in fair value of derivative assets and liabilities measured at fair value on a recurring basis within the Condensed Consolidated Statements of Operations. As stated previously (see Note 3), the Company had land, buildings and equipment classified as assets held for sale related to the closure of its Modesto, California facility as of September 30, 2016. At September 30, 2016 , the carrying value, as determined by estimated fair value less estimated costs to sell, of the assets held for sale was $4.3 and was included in “Prepaid expenses and other current assets” on the Condensed Consolidated Balance Sheets. Related to its Farmers Branch, Texas facility, the Company had land and buildings classified as assets held for sale as of September 30, 2016. The carrying value of the assets included in “Prepaid expenses and other current assets” on the Condensed Consolidated Balance Sheets was $5.8 as of September 30, 2016. The fair value of the assets held for sale were measured at fair value on a nonrecurring basis based on third-party offers to purchase the assets. The fair value measurement was categorized as Level 3, as the fair values utilize significant unobservable inputs. The following table summarizes the Level 3 activity. Balance, September 30, 2016 $ 10.1 Gain on assets held for sale 0.2 Cash received from sale of assets (10.3 ) Balance, June 30, 2017 $ — The carrying amounts reported on the Condensed Consolidated Balance Sheets for cash and cash equivalents, receivables and accounts payable approximate fair value because of the short maturities (less than 12 months) of these financial instruments.

Legal Proceedings (Notes)

Legal Proceedings (Notes)	9 Months Ended
	Jun. 30, 2017
Legal Proceedings [Abstract]
Legal Proceedings	LEGAL PROCEEDINGS In late 2008 and early 2009, some 22 class action lawsuits were filed in various federal courts against Michael Foods, Inc. and some 20 other defendants (producers of shell eggs and egg products, and egg industry organizations), alleging violations of federal and state antitrust laws in connection with the production and sale of shell eggs and egg products, and seeking unspecified damages. All cases were transferred to the Eastern District of Pennsylvania for coordinated and/or consolidated pretrial proceedings. The case involves three plaintiff groups: (1) direct purchasers of eggs and egg products; (2) companies (primarily large grocery chains and food companies that purchase considerable quantities of eggs) that opted out of any eventual class and brought their own separate actions against the defendants (“opt-out plaintiffs”); and (3) indirect purchasers of shell eggs. Motions related to class certification: In September 2015, the court granted the motion of the direct purchaser plaintiffs to certify a shell-egg subclass, but denied their motion to certify an egg-products subclass. Also in September 2015, the court denied the motion of the indirect purchaser plaintiffs for class certification. The indirect purchaser plaintiffs subsequently filed an alternative motion for certification of an injunctive class, and that motion was denied on June 27, 2017. Motions for summary judgment: In September 2016, the court granted the defendants’ motion for summary judgment based on purchases of egg products, thereby limiting all claims to shell eggs. Also in September 2016, the court denied individual motions for summary judgment made by Michael Foods and three other defendants that had sought the dismissal of all claims against them. Settlements by Michael Foods: On December 8, 2016, Michael Foods reached an agreement to settle all class claims asserted against it by the direct purchaser plaintiffs for a payment of $75.0 . The Company has paid such amount into escrow. This settlement is subject to approval by the court following notice to all class members. While the Company expects the settlement will receive the needed approval, there can be no assurance that the court will approve the agreement as proposed by the parties. On January 19, 2017, Michael Foods entered into a settlement, the details of which are confidential, with the opt-out plaintiffs (excluding those opt-out plaintiffs whose claims relate primarily or exclusively to egg products; several of those plaintiffs are now appealing the dismissal of the egg products claims). This settlement was paid by the Company as of June 30, 2017. Michael Foods has at all times denied liability in this matter, and neither settlement contains any admission of liability by Michael Foods. During the nine months ended June 30, 2017, the Company expensed $74.5 , included in “Selling, general and administrative expenses” on the Condensed Consolidated Statements of Operations, related to these settlements. Expense of $10.0 was recorded related to these settlements in the three and nine months ended June 30, 2016. At September 30, 2016, the Company had accruals related to these settlements of $28.5 that were included in “Other current liabilities” on the Condensed Consolidated Balance Sheets. Under current law, any settlement paid, including the settlement with the direct purchaser plaintiffs and the settlement with the opt-out plaintiffs, is deductible for federal income tax purposes. Remaining portions of the case: The indirect purchaser plaintiffs are seeking to immediately appeal the court’s denial of their motions for class certification. The Third Circuit Court of Appeals has not yet ruled on whether it will accept these matters for review. Additionally, the elimination of egg products from the case is being appealed by the opt-out plaintiffs who purchased egg products. The appeal is fully submitted to the Third Circuit Court of Appeals. While the likelihood of a material adverse outcome in the egg antitrust litigation has been significantly reduced as a result of the Michael Foods settlements described above, there is still a possibility of an adverse outcome following appellate review of the remaining portions of the case. At this time, however, we do not believe it is possible to estimate any loss in connection with these remaining portions of the egg antitrust litigation. Accordingly, we cannot predict what impact, if any, these remaining matters and any results from such matters could have on our future results of operations.

Long-Term Debt

Long-Term Debt	9 Months Ended
	Jun. 30, 2017
Debt Disclosure [Abstract]
Long-Term Debt	LONG-TERM DEBT Long-term debt as of the dates indicated consists of the following: June 30, September 30, 2016 5.50% Senior Notes maturing March 2025 $ 1,000.0 $ — 5.75% Senior Notes maturing March 2027 750.0 — 5.00% Senior Notes maturing August 2026 1,750.0 1,750.0 7.75% Senior Notes maturing March 2024 — 800.0 8.00% Senior Notes maturing July 2025 137.5 400.0 6.00% Senior Notes maturing December 2022 630.0 630.0 6.75% Senior Notes maturing December 2021 — 875.0 7.375% Senior Notes maturing February 2022 — 133.0 Term Loan 2,200.0 — TEUs — 11.0 4.57% 2012 Series Bond maturing September 2017 0.7 1.3 Capital leases 0.2 — $ 6,468.4 $ 4,600.3 Less: Current portion of long-term debt (22.7 ) (12.3 ) Debt issuance costs, net (77.2 ) (53.5 ) Plus: Unamortized premium — 16.7 Total long-term debt $ 6,368.5 $ 4,551.2 On February 14, 2017, the Company issued $1,000.0 principal value of 5.50% senior notes due in March 2025 and $750.0 principal value of 5.75% senior notes due in March 2027. The 5.50% and 5.75% senior notes were issued at par and the Company received $1,725.4 after paying investment banking and other fees of $24.6 , which will be deferred and amortized to interest expense over the term of the notes. Interest payments on the 5.50% and 5.75% senior notes are due semi-annually each March 1 and September 1. With the net proceeds received from the February 14, 2017 issuance of the 5.50% and 5.75% senior notes (described above), the Company repaid the remaining $133.0 principal value of the 7.375% senior notes as well as the $875.0 principal value of the 6.75% senior notes. In connection with the early repayment of these notes, the Company recorded expense of $62.5 in the second quarter of fiscal 2017, which is reported as “Loss on extinguishment of debt” in the Condensed Consolidated Statement of Operations. This loss included a tender premium of $67.9 and deferred financing fee write-offs of $10.1 , partially offset by the write-off of unamortized debt premium of $15.5 . On May 24, 2017, the Company entered into a Joinder Agreement No. 1 (“Joinder No. 1”). Joinder No.1 provided for an incremental term loan of $1,200.0 (the “ Joinder No. 1 Term Loan”) under the Company’s existing credit agreement amended and restated on March 28, 2017 and further amended on April 28, 2017 (as amended and restated, the “Credit Agreement”), which is discussed in further detail below. Pursuant to Joinder No. 1, the Company borrowed $1,200.0 , the net proceeds of which were used to repay the $800.0 principal value of the 7.75% senior notes as well as $262.5 principal value of the 8.00% senior notes along with related tender premiums and other fees and expenses. In connection with the early repayment of these notes, the Company recorded expense of $160.4 in the three months ended June 30, 2017, which is reported as “Loss on extinguishment of debt” in the Condensed Consolidated Statement of Operations. This loss included a tender premium of $151.9 and deferred financing fee write-offs of $8.5 . In connection with the early repayment of these notes and the 7.375% and 6.75% notes, the Company recorded expense of $222.9 in the nine months ended June 30, 2017, which is reported as “Loss on extinguishment of debt” in the Condensed Consolidated Statement of Operations. These losses included tender premiums of $219.8 and deferred financing fee write-offs of $18.6 partially offset by the write-off of unamortized debt premium of $15.5 . On June 29, 2017, the Company entered into a Joinder Agreement No. 2 (“Joinder No. 2”). Joinder No. 2 provided for an incremental term loan of $1,000.0 (the “ Joinder No. 2 Term Loan”) under the Credit Agreement. Pursuant to Joinder No.2, the Company borrowed $1,000.0 and used the proceeds, together with cash on hand, to finance its acquisition of Weetabix (see Note 4 and Note 18). The Joinder No. 2 Term Loan was combined with the outstanding amounts under the Joinder No.1 Term Loan (collectively the “Term Loan”). The outstanding amounts under the Term Loan bear interest at the Eurodollar Rate plus 2.25% or the Base Rate (as such terms are defined in the Credit Agreement) plus 1.25% . The Term Loan must be repaid in quarterly principal installments of $5.5 beginning on September 30, 2017 and must be repaid in full on May 24, 2024. The Company must make certain prepayments of principal of the Term Loan under circumstances specified in Joinder No. 1. The Company incurred $23.5 of issuance costs in connection with the Term Loan as of June 30, 2017. On March 28, 2017, the Company amended and restated its prior credit agreement. The Credit Agreement provides for a revolving credit facility in an aggregate principal amount of $800.0 (the “Revolving Credit Facility”), with the commitments thereunder to be made available to the Company in US Dollars, Canadian Dollars, Euros and Pounds Sterling. Letters of credit will be available under the Credit Agreement in an aggregate amount of up to $50.0 . The Credit Agreement also provides for potential incremental revolving and term facilities at the request of the Company and at the discretion of the lenders, in each case on terms to be determined, and also permits the Company, subject to certain conditions, to incur incremental equivalent debt, in an aggregate maximum amount (for incremental revolving and term facilities and incremental equivalent debt combined) not to exceed the greater of (1) $700.0 and (2) the maximum amount at which (A) the Company’s pro forma consolidated leverage ratio (as defined in the Credit Agreement) would not exceed 6.50 to 1.00 and (B) the Company’s pro forma senior secured leverage ratio (as defined in the Credit Agreement) would not exceed 3.00 to 1.00 as of the date such indebtedness is incurred. The outstanding amounts under the Revolving Credit Facility must be repaid on or before March 28, 2022. The Company incurred $4.3 of issuance costs in connection with the Credit Agreement. The revolving credit facility has outstanding letters of credit of $10.0 which reduced the available borrowing capacity to $790.0 at June 30, 2017 . The Credit Agreement also permits the Company to incur additional unsecured debt if, among other conditions, its consolidated interest coverage ratio (as defined in the Credit Agreement) would be greater than or equal to 2.00 to 1.00 after giving effect to such new debt. Borrowings under the Revolving Credit Facility will bear interest, at the option of the Company, at an annual rate equal to either the Base Rate, Eurodollar Rate or CDOR Rate (as such terms are defined in the Credit Agreement) plus an applicable margin ranging from 1.75% to 2.25% for Eurodollar Rate-based loans and CDOR Rate-based loans and from 0.75% to 1.25% for Base Rate-based loans, depending in each case on the Company’s senior secured leverage ratio. Commitment fees on the daily unused amount of commitments under the Revolving Credit Facility will accrue at rates ranging from 0.250% to 0.375% , also depending on the Company’s senior secured leverage ratio. The Credit Agreement contains a financial covenant requiring the Company to maintain a senior secured leverage ratio (as defined in the Credit Agreement) not to exceed 4.25 to 1.00, measured as of the last day of any fiscal quarter if, as of the last day of such fiscal quarter, the aggregate outstanding amount of all revolving credit loans, swing line loans and letter of credit obligations (subject to certain exceptions specified in the Credit Agreement) exceeds 30% of the Company’s revolving credit commitments. The Credit Agreement provides for customary events of default, including material breach of representations and warranties, failure to make required payments, failure to comply with certain agreements or covenants, failure to pay, or default under, certain other material indebtedness, certain events of bankruptcy and insolvency, inability to pay debts, the occurrence of one or more unstayed or undischarged judgments in excess of $75.0 , attachments issued against all or any material part of the Company’s property, change in control, the invalidity of any loan document, the failure of the collateral documents to create a valid and perfected first priority lien and certain ERISA events. Upon the occurrence of an event of default, the maturity of the loans under the Credit Agreement may accelerate and the agent and lenders under the Credit Agreement may exercise other rights and remedies available at law or under the loan documents, including with respect to the collateral and guarantees for the Company’s obligations under the Credit Agreement. Debt Covenants Under the terms of the Credit Agreement, the Company is required to comply with a financial covenant consisting of a ratio for quarterly maximum senior secured leverage if all outstanding amounts under the Revolving Credit Facility exceed 30% of the Company’s revolving credit commitments. As of June 30, 2017 , the Company was in compliance with such financial covenant.

Pension and Other Postretiremen

Pension and Other Postretirement Benefits	9 Months Ended
	Jun. 30, 2017
Pension and Other Postretirement Benefit Expense [Abstract]
Pension and Other Postretirement benefits	PENSION AND OTHER POSTRETIREMENT BENEFITS The Company maintains qualified defined benefit plans in the United States and Canada for certain employees primarily within its Post Consumer Brands segment. Certain of the Company’s employees are eligible to participate in the Company’s qualified and supplemental noncontributory defined benefit pension plans and other postretirement benefit plans (partially subsidized retiree health and life insurance) or separate plans for Post Foods Canada Inc. Amounts for the Canadian plans are included in these disclosures and are not disclosed separately because they do not constitute a significant portion of the combined amounts. Effective January 1, 2011, benefit accruals for defined pension plans were frozen for all administrative employees and certain production employees. The following tables provide the components of net periodic benefit cost (gain) for the plans. Pension Benefits Three Months Ended Nine Months Ended 2017 2016 2017 2016 Components of net periodic benefit cost Service cost $ 1.0 $ 1.0 $ 3.0 $ 3.0 Interest cost 0.6 0.7 1.7 1.9 Expected return on plan assets (0.8 ) (0.6 ) (2.3 ) (1.9 ) Recognized net actuarial loss 0.4 0.3 1.2 0.8 Recognized prior service cost 0.1 — 0.2 0.2 Net periodic benefit cost $ 1.3 $ 1.4 $ 3.8 $ 4.0 Other Benefits Three Months Ended Nine Months Ended 2017 2016 2017 2016 Components of net periodic benefit cost Service cost $ 0.2 $ 0.1 $ 0.5 $ 0.9 Interest cost 0.5 0.8 1.5 3.2 Recognized net actuarial loss 0.2 0.5 0.5 1.2 Recognized prior service credit (1.2 ) (1.5 ) (3.6 ) (2.4 ) Net periodic benefit (gain) cost $ (0.3 ) $ (0.1 ) $ (1.1 ) $ 2.9

Shareholders' Equity

Shareholders' Equity	9 Months Ended
	Jun. 30, 2017
Stockholders' Equity Note [Abstract]
Shareholders' Equity	SHAREHOLDERS’ EQUITY In the three months ended June 30, 2017, the Company repurchased 2.2 shares of its common stock at an average share price of $81.92 per share for a total cost of $180.7 , including brokers’ commissions. In the nine months ended June 30, 2017, the Company repurchased 3.9 shares of its common stock at an average share price of $79.45 per share for a total cost of $313.8 , including brokers’ commissions. These share repurchases were recorded as “Treasury stock, at cost” on the Condensed Consolidated Balance Sheets. The Company did not repurchase shares of its common stock in the three and nine months ended June 30, 2016. Holders of TEUs, or their separated purchase contract components, settled 1.9 and 2.8 purchase contracts during the three and nine months ended June 30, 2017, respectively, for which the Company issued 3.2 and 4.7 shares of common stock during the three and nine months ended June 30, 2017, respectively. No purchase contracts were settled and no shares of common stock were issued relating to the TEUs during the three or nine months ended June 30, 2016. All outstanding purchase contracts were settled as of June 30, 2017.

Segments

Segments	9 Months Ended
	Jun. 30, 2017
Segment Reporting [Abstract]
Segments	SEGMENTS The Company’s reportable segments are as follows: • Post Consumer Brands: primarily ready-to-eat (“RTE”) cereals; • Michael Foods Group: eggs, potatoes, cheese and pasta; • Active Nutrition: protein shakes, bars and powders and nutritional supplements; and • Private Brands: primarily peanut and other nut butters, dried fruit and nuts, and granola. Management evaluates each segment’s performance based on its segment profit, which is its operating profit before impairment of property and intangible assets, facility closure related costs, restructuring expenses, losses on assets held for sale, gain on sale of business and other unallocated corporate income and expenses. The following tables present information about the Company’s reportable segments, including corresponding amounts for the prior year. Three Months Ended Nine Months Ended 2017 2016 2017 2016 Net Sales Post Consumer Brands $ 427.3 $ 434.5 $ 1,279.0 $ 1,286.2 Michael Foods Group 524.2 518.0 1,579.0 1,662.1 Active Nutrition 188.7 156.1 519.9 415.7 Private Brands 132.0 137.9 399.7 403.2 Eliminations (0.1 ) (0.4 ) (0.3 ) (1.2 ) Total $ 1,272.1 $ 1,246.1 $ 3,777.3 $ 3,766.0 Segment Profit Post Consumer Brands $ 96.9 $ 75.2 $ 268.6 $ 212.8 Michael Foods Group 46.4 65.6 72.1 236.0 Active Nutrition 28.0 17.7 74.1 42.0 Private Brands 8.0 9.0 24.5 29.6 Total segment profit 179.3 167.5 439.3 520.4 General corporate (income) expenses and other (11.2 ) 25.5 35.1 83.0 Interest expense, net 76.5 77.3 229.6 232.3 Loss on extinguishment of debt 160.4 — 222.9 — Other expense (income), net 45.2 62.6 (100.3 ) 169.4 (Loss) earnings before income taxes $ (91.6 ) $ 2.1 $ 52.0 $ 35.7 Depreciation and amortization Post Consumer Brands $ 27.4 $ 26.1 $ 81.5 $ 78.6 Michael Foods Group 36.5 35.5 110.0 106.0 Active Nutrition 6.3 6.4 18.8 18.8 Private Brands 6.7 6.2 19.9 18.6 Total segment depreciation and amortization 76.9 74.2 230.2 222.0 Corporate and accelerated depreciation 0.9 1.5 2.7 4.9 Total $ 77.8 $ 75.7 $ 232.9 $ 226.9 Assets June 30, September 30, Post Consumer Brands $ 3,338.7 $ 3,387.0 Michael Foods Group 3,570.0 3,498.1 Active Nutrition 614.1 624.8 Private Brands 661.2 655.9 Corporate 2,620.2 1,194.8 Total $ 10,804.2 $ 9,360.6

Subsequent Events (Notes)

Subsequent Events (Notes)	9 Months Ended
	Jun. 30, 2017
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS On July 3, 2017, the Company completed its acquisition of Weetabix, a United Kingdom based packaged food company that primarily produces branded and private label RTE cereal products. The purchase price of the transaction was approximately £1,400.0 , net of cash acquired, subject to certain adjustments as described in the purchase agreement, resulting in a payment of £1,422.3 , net of cash acquired, which was paid from cash on hand, including $1,000.0 in proceeds from the Joinder No. 2 Term Loan (see Note 14).

Restructuring (Tables)

Restructuring (Tables)	9 Months Ended
	Jun. 30, 2017
Restructuring and Related Activities [Abstract]
Restructuring and Related Costs	Employee-Related Costs Accelerated Depreciation Total Balance at September 30, 2015 $ 10.5 $ — $ 10.5 Charge to expense 2.1 0.4 2.5 Cash payments (9.0 ) — (9.0 ) Non-cash charges (0.9 ) (0.4 ) (1.3 ) Balance at June 30, 2016 $ 2.7 $ — $ 2.7 Balance at September 30, 2016 $ 1.1 $ — $ 1.1 Charge to expense — — — Cash payments (1.0 ) — (1.0 ) Non-cash charges — — — Balance at June 30, 2017 $ 0.1 $ — $ 0.1 Total expected restructuring charge $ 12.6 $ 2.5 $ 15.1 Cumulative restructuring charges incurred to date 12.6 2.5 15.1 Remaining expected restructuring charge $ — $ — $ —

Business Combinations (Tables)

Business Combinations (Tables)	9 Months Ended
	Jun. 30, 2017
Business Combinations [Abstract]
National Pasteurized Eggs Opening Balance Sheet	Cash and cash equivalents $ 5.6 Receivables 8.5 Inventories 2.1 Prepaid expenses and other current assets 0.4 Property 10.4 Goodwill 46.3 Other intangible assets 51.4 Current portion of capital lease (0.1 ) Accounts payable (6.3 ) Other current liabilities (2.9 ) Long-term capital lease (0.2 ) Deferred tax liability - long-term (18.7 ) Total acquisition cost $ 96.5
Pro Forma Information	Three Months Ended Nine Months Ended 2017 2016 2017 2016 Pro forma net sales $ 1,272.1 $ 1,275.0 $ 3,777.3 $ 3,859.9 Pro forma net (loss) earnings available to common shareholders $ (62.8 ) $ 1.7 $ 24.1 $ 18.5 Pro forma basic (loss) earnings per common share $ (0.93 ) $ 0.02 $ 0.35 $ 0.27 Pro forma diluted (loss) earnings per common share $ (0.93 ) $ 0.02 $ 0.35 $ 0.26

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
	Jun. 30, 2017
Goodwill
Carrying Amount of Goodwill	Post Consumer Brands Michael Foods Group Active Nutrition Private Brands Total Balance, September 30, 2016 Goodwill (gross) $ 1,994.0 $ 1,345.8 $ 180.7 $ 256.6 $ 3,777.1 Accumulated impairment losses (609.1 ) — (88.3 ) — (697.4 ) Goodwill (net) $ 1,384.9 $ 1,345.8 $ 92.4 $ 256.6 $ 3,079.7 Goodwill acquired — 46.3 — — 46.3 Balance, June 30, 2017 Goodwill (gross) $ 1,994.0 $ 1,392.1 $ 180.7 $ 256.6 $ 3,823.4 Accumulated impairment losses (609.1 ) — (88.3 ) — (697.4 ) Goodwill (net) $ 1,384.9 $ 1,392.1 $ 92.4 $ 256.6 $ 3,126.0

Intangible Assets, net (Tables)

Intangible Assets, net (Tables)	9 Months Ended
	Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Total Intangible Assets	June 30, 2017 September 30, 2016 Carrying Accumulated Amortization Net Carrying Accumulated Amortization Net Subject to amortization: Customer relationships $ 2,056.6 $ (385.9 ) $ 1,670.7 $ 2,012.7 $ (302.0 ) $ 1,710.7 Trademarks/brands 802.6 (151.9 ) 650.7 795.1 (120.6 ) 674.5 Other intangible assets 21.7 (9.3 ) 12.4 21.7 (7.7 ) 14.0 2,880.9 (547.1 ) 2,333.8 2,829.5 (430.3 ) 2,399.2 Not subject to amortization: Trademarks/brands 434.5 — 434.5 434.5 — 434.5 $ 3,315.4 $ (547.1 ) $ 2,768.3 $ 3,264.0 $ (430.3 ) $ 2,833.7

(Loss) Earnings Per Share (Tabl

(Loss) Earnings Per Share (Tables)	9 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
Computation of basic and diluted (loss) earnings per share	Three Months Ended Nine Months Ended 2017 2016 2017 2016 Net (loss) earnings for basic (loss) earnings per share $ (62.9 ) $ — $ 23.9 $ 12.0 Net (loss) earnings for diluted (loss) earnings per share $ (62.9 ) $ — $ 23.9 $ 12.0 Weighted-average shares outstanding 65.9 64.3 64.9 63.7 Effect of TEUs on weighted-average shares for basic (loss) earnings per share 1.6 4.9 3.4 4.9 Weighted-average shares for basic (loss) earnings per share 67.5 69.2 68.3 68.6 Effect of dilutive securities: Stock options — — 1.2 1.1 Stock appreciation rights — — 0.1 0.1 Restricted stock awards — — 0.2 0.3 Total dilutive securities — — 1.5 1.5 Weighted-average shares for diluted (loss) earnings per share 67.5 69.2 69.8 70.1 Basic (loss) earnings per common share $ (0.93 ) $ — $ 0.35 $ 0.17 Diluted (loss) earnings per common share $ (0.93 ) $ — $ 0.34 $ 0.17
Antidilutive Securities Excluded from Computation of (Loss) Earnings Per Share
Antidilutive Securities Excluded from Computation of (Loss) Earnings Per Share	Three Months Ended Nine Months Ended 2017 2016 2017 2016 Stock options 4.2 4.2 0.3 0.3 Stock appreciation rights 0.1 0.2 — — Restricted stock awards 0.7 0.9 — 0.2 Preferred shares conversion to common 9.1 9.1 9.1 9.1

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Jun. 30, 2017
Inventory [Abstract]
Inventories	June 30, September 30, Raw materials and supplies $ 120.2 $ 112.4 Work in process 17.3 17.4 Finished products 358.4 339.3 Flocks 30.7 34.0 $ 526.6 $ 503.1

Property, net (Tables)

Property, net (Tables)	9 Months Ended
	Jun. 30, 2017
Property, Plant and Equipment [Abstract]
Property, net	June 30, September 30, Property, at cost $ 2,024.0 $ 1,900.3 Accumulated depreciation (657.1 ) (545.9 ) $ 1,366.9 $ 1,354.4

Derivative Financial Instrume31

Derivative Financial Instruments and Hedging (Tables)	9 Months Ended
	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Notional amounts of derivatives held	June 30, September 30, Not designated as hedging instruments under ASC Topic 815: Commodity contracts 77.1 49.8 Energy contracts 32.6 23.6 Foreign exchange contracts - Option contracts, net (a) — — Foreign exchange contracts - Cross-currency swaps 448.7 — Interest rate swap 76.4 77.6 Interest rate swaps - Rate-lock swaps 1,649.3 1,649.3 Designated as hedging instruments under ASC Topic 815: Foreign exchange contracts - Forward contracts 24.0 — Interest rate swap 1,000.0 —
Derivative Instruments in Condensed Consolidated Balance Sheets	Fair Value Portion Designated as Hedging Instruments Balance Sheet Location June 30, September 30, June 30, September 30, Asset Derivatives: Commodity contracts Prepaid expenses and other current assets $ 4.6 $ 0.6 $ — $ — Energy contracts Prepaid expenses and other current assets 1.6 2.4 — — Foreign exchange contracts Prepaid expenses and other current assets 1.8 — 0.5 — Foreign exchange contracts Other assets 0.3 — 0.3 — $ 8.3 $ 3.0 $ 0.8 $ — Liability Derivatives: Commodity contracts Other current liabilities $ 0.6 $ 3.3 $ — $ — Energy contracts Other current liabilities 0.4 0.2 — — Foreign exchange contracts Other current liabilities 2.0 — — — Foreign exchange contracts Other liabilities 14.0 — — — Interest rate swaps Other current liabilities 2.4 2.0 0.5 — Interest rate swaps Other liabilities 199.6 313.2 2.8 — $ 219.0 $ 318.7 $ 3.3 $ —
Effect of Derivative Instruments on the Condensed Consolidated Statement of Operations and Condensed Consolidated Statement of Other Comprehensive (Loss) Income	The following tables present the effects of the Company’s derivative instruments on the Company’s Condensed Consolidated Statements of Operations and Condensed Consolidated Statements of Comprehensive (Loss) Income (“OCI”) for the three months ended June 30, 2017 and 2016. Derivatives Not Designated as Hedging Instruments Statement of Operations Location (Gain) Loss Recognized in Statement of Operations 2017 2016 Commodity contracts Cost of goods sold $ (6.9 ) $ (1.0 ) Energy contracts Cost of goods sold 1.5 (4.1 ) Foreign exchange contracts Selling, general and administrative expenses 0.8 — Foreign exchange contracts Other expense (income), net 14.7 — Interest rate swaps Other expense (income), net 30.5 62.6 Cash Flow Hedges (Gain) Loss Recognized in OCI [Effective Portion] Loss Reclassified from Accumulated OCI into Earnings [Effective Portion] (Gain) Loss Recognized in Earnings [Ineffective Portion and Amount Excluded from Effectiveness Testing] Statement of Operations Location 2017 2016 2017 2016 2017 2016 Foreign exchange contracts $ (0.9 ) $ — $ — $ — $ — $ — Selling, general and administrative expenses Interest rate swaps 3.6 — 0.3 — — — Interest expense, net The following tables present the effects of the Company’s derivative instruments on the Company’s Condensed Consolidated Statements of Operations and Condensed Consolidated Statements of Comprehensive (Loss) Income for the nine months ended June 30, 2017 and 2016. Derivatives Not Designated as Hedging Instruments Statement of Operations Location (Gain) Loss Recognized in Statement of Operations 2017 2016 Commodity contracts Cost of goods sold $ (3.5 ) $ 3.2 Energy contracts Cost of goods sold 1.8 0.8 Foreign exchange contracts Selling, general and administrative expenses 0.9 — Foreign exchange contracts Other expense (income), net 14.7 — Interest rate swaps Other expense (income), net (115.0 ) 169.4 Cash Flow Hedges (Gain) Loss Recognized in OCI [Effective Portion] Loss Reclassified from Accumulated OCI into Earnings [Effective Portion] (Gain) Loss Recognized in Earnings [Ineffective Portion and Amount Excluded from Effectiveness Testing] Statement of Operations Location 2017 2016 2017 2016 2017 2016 Foreign exchange contracts $ (0.9 ) $ — $ — $ — $ — $ — Selling, general and administrative expenses Interest rate swaps 3.6 — 0.3 — — — Interest expense, net

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Jun. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair Value, by Balance Sheet Grouping	June 30, 2017 September 30, 2016 Total Level 1 Level 2 Total Level 1 Level 2 Assets: Deferred compensation investment $ 13.8 $ 13.8 $ — $ 11.5 $ 11.5 $ — Derivative assets 8.3 — 8.3 3.0 — 3.0 $ 22.1 $ 13.8 $ 8.3 $ 14.5 $ 11.5 $ 3.0 Liabilities: Deferred compensation liabilities $ 19.9 $ — $ 19.9 $ 17.3 $ — $ 17.3 Derivative liabilities 219.0 — 219.0 318.7 — 318.7 $ 238.9 $ — $ 238.9 $ 336.0 $ — $ 336.0 The following table presents the fair value of the Company’s long-term debt which is classified as Level 2 in the fair value hierarchy per ASC Topic 820. The senior notes and term loan are valued utilizing an interest rate derived from an estimated yield curve obtained from independent pricing sources for similar types of borrowing arrangements. The carrying value of the remaining debt approximates fair value because of the short maturities of these financial instruments. June 30, September 30, Senior notes $ 4,374.7 $ 4,835.9 Term loan 2,201.7 — TEUs — 15.0 4.57% 2012 Series Bond maturing September 2017 0.7 1.3 Capital leases 0.2 — $ 6,577.3 $ 4,852.2
Fair Value Measurements, Nonrecurring	Balance, September 30, 2016 $ 10.1 Gain on assets held for sale 0.2 Cash received from sale of assets (10.3 ) Balance, June 30, 2017 $ —

Long-Term Debt (Tables)

Long-Term Debt (Tables)	9 Months Ended
	Jun. 30, 2017
Debt Disclosure [Abstract]
Long-term Debt	June 30, September 30, 2016 5.50% Senior Notes maturing March 2025 $ 1,000.0 $ — 5.75% Senior Notes maturing March 2027 750.0 — 5.00% Senior Notes maturing August 2026 1,750.0 1,750.0 7.75% Senior Notes maturing March 2024 — 800.0 8.00% Senior Notes maturing July 2025 137.5 400.0 6.00% Senior Notes maturing December 2022 630.0 630.0 6.75% Senior Notes maturing December 2021 — 875.0 7.375% Senior Notes maturing February 2022 — 133.0 Term Loan 2,200.0 — TEUs — 11.0 4.57% 2012 Series Bond maturing September 2017 0.7 1.3 Capital leases 0.2 — $ 6,468.4 $ 4,600.3 Less: Current portion of long-term debt (22.7 ) (12.3 ) Debt issuance costs, net (77.2 ) (53.5 ) Plus: Unamortized premium — 16.7 Total long-term debt $ 6,368.5 $ 4,551.2

Pension and Other Postretirem34

Pension and Other Postretirement Benefits (Tables)	9 Months Ended
	Jun. 30, 2017
Pension and Other Postretirement Benefit Expense [Abstract]
Components of net periodic benefit cost (gain)	Pension Benefits Three Months Ended Nine Months Ended 2017 2016 2017 2016 Components of net periodic benefit cost Service cost $ 1.0 $ 1.0 $ 3.0 $ 3.0 Interest cost 0.6 0.7 1.7 1.9 Expected return on plan assets (0.8 ) (0.6 ) (2.3 ) (1.9 ) Recognized net actuarial loss 0.4 0.3 1.2 0.8 Recognized prior service cost 0.1 — 0.2 0.2 Net periodic benefit cost $ 1.3 $ 1.4 $ 3.8 $ 4.0 Other Benefits Three Months Ended Nine Months Ended 2017 2016 2017 2016 Components of net periodic benefit cost Service cost $ 0.2 $ 0.1 $ 0.5 $ 0.9 Interest cost 0.5 0.8 1.5 3.2 Recognized net actuarial loss 0.2 0.5 0.5 1.2 Recognized prior service credit (1.2 ) (1.5 ) (3.6 ) (2.4 ) Net periodic benefit (gain) cost $ (0.3 ) $ (0.1 ) $ (1.1 ) $ 2.9

Segments (Tables)

Segments (Tables)	9 Months Ended
	Jun. 30, 2017
Segment Reporting [Abstract]
Segment Reporting Information, by Segment	Three Months Ended Nine Months Ended 2017 2016 2017 2016 Net Sales Post Consumer Brands $ 427.3 $ 434.5 $ 1,279.0 $ 1,286.2 Michael Foods Group 524.2 518.0 1,579.0 1,662.1 Active Nutrition 188.7 156.1 519.9 415.7 Private Brands 132.0 137.9 399.7 403.2 Eliminations (0.1 ) (0.4 ) (0.3 ) (1.2 ) Total $ 1,272.1 $ 1,246.1 $ 3,777.3 $ 3,766.0 Segment Profit Post Consumer Brands $ 96.9 $ 75.2 $ 268.6 $ 212.8 Michael Foods Group 46.4 65.6 72.1 236.0 Active Nutrition 28.0 17.7 74.1 42.0 Private Brands 8.0 9.0 24.5 29.6 Total segment profit 179.3 167.5 439.3 520.4 General corporate (income) expenses and other (11.2 ) 25.5 35.1 83.0 Interest expense, net 76.5 77.3 229.6 232.3 Loss on extinguishment of debt 160.4 — 222.9 — Other expense (income), net 45.2 62.6 (100.3 ) 169.4 (Loss) earnings before income taxes $ (91.6 ) $ 2.1 $ 52.0 $ 35.7 Depreciation and amortization Post Consumer Brands $ 27.4 $ 26.1 $ 81.5 $ 78.6 Michael Foods Group 36.5 35.5 110.0 106.0 Active Nutrition 6.3 6.4 18.8 18.8 Private Brands 6.7 6.2 19.9 18.6 Total segment depreciation and amortization 76.9 74.2 230.2 222.0 Corporate and accelerated depreciation 0.9 1.5 2.7 4.9 Total $ 77.8 $ 75.7 $ 232.9 $ 226.9 Assets June 30, September 30, Post Consumer Brands $ 3,338.7 $ 3,387.0 Michael Foods Group 3,570.0 3,498.1 Active Nutrition 614.1 624.8 Private Brands 661.2 655.9 Corporate 2,620.2 1,194.8 Total $ 10,804.2 $ 9,360.6

Restructuring (Details)

Restructuring (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Restructuring Reserve [Roll Forward]
Beginning Balance		$ 1.1	$ 10.5
Charge to expense	$ 0.8	0	2.5
Cash payments		(1)	(9)
Non-cash charges		0	(1.3)
Ending Balance	2.7	0.1	2.7
Total expected restructuring charge		15.1
Cumulative restructuring charges incurred to date		15.1
Remaining expected restructuring charge		0
Employee Severance
Restructuring Reserve [Roll Forward]
Beginning Balance		1.1	10.5
Charge to expense		0	2.1
Cash payments		(1)	(9)
Non-cash charges		0	(0.9)
Ending Balance	2.7	0.1	2.7
Total expected restructuring charge		12.6
Cumulative restructuring charges incurred to date		12.6
Remaining expected restructuring charge		0
Accelerated depreciation
Restructuring Reserve [Roll Forward]
Beginning Balance		0	0
Charge to expense		0	0.4
Cash payments		0	0
Non-cash charges		0	(0.4)
Ending Balance	$ 0	0	$ 0
Total expected restructuring charge		2.5
Cumulative restructuring charges incurred to date		2.5
Remaining expected restructuring charge		$ 0

Restructuring Narrative (Detail

Restructuring Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Sep. 30, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 0.8	$ 0	$ 2.5
(Losses) Gain on assets held for sale	$ (1.1)	0.2	$ (9.5)
Level 3
Restructuring Cost and Reserve [Line Items]
Carrying value of assets held for sale		0		$ 10.1
(Losses) Gain on assets held for sale		$ 0.2
Modesto, California facility | Level 3
Restructuring Cost and Reserve [Line Items]
Carrying value of assets held for sale				4.3
Farmers Branch, Texas facility | Level 3
Restructuring Cost and Reserve [Line Items]
Carrying value of assets held for sale				$ 5.8

Business Combinations (Details)

Business Combinations (Details) - USD ($) $ in Millions	Oct. 04, 2016	Oct. 04, 2015	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2017	Jun. 30, 2016	Oct. 03, 2016	Sep. 30, 2016
Business Acquisition [Line Items]
Goodwill			$ 3,126				$ 3,126			$ 3,079.7
Foreign Currency Transaction Gain, before Tax							34.9	$ 0.3
Acquisition and Divestiture Related Costs			3.3		$ 5.1		6.8	$ 7.3
National Pasteurized Eggs
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	$ 93.5
Business Combination, Consideration Transferred	$ 97
Business Combinations, Purchase Price Adjustment, Net Working Capital Settlement				$ 1.2
Business Combinations, Purchase Price Adjustment, Net Working Capital Settlement, Payable			0.7				0.7
Cash and cash equivalents									$ 5.6
Receivables									8.5
Inventories									2.1
Prepaid expenses and other current assets									0.4
Property									10.4
Goodwill									46.3
Other intangible assets									51.4
Current portion of capital lease									(0.1)
Accounts payable									(6.3)
Other current liabilities									(2.9)
Long-term capital lease									(0.2)
Deferred tax liability - long-term									(18.7)
Total acquisition cost									$ 96.5
Willamette Egg
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross		$ 90
Business Combination, Consideration Transferred		$ 109
Business Combinations, Purchase Price Adjustment, Net Working Capital Settlement						$ 4.6
Weetabix
Business Acquisition [Line Items]
Foreign Currency Transaction Gain, before Tax			$ 33.5				33.5
Customer Relationships | National Pasteurized Eggs
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired							$ 43.9
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life							16 years
Trademarks | National Pasteurized Eggs
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired							$ 7.5
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life							20 years

Business combinations pro forma

Business combinations pro forma financial information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Business Combinations [Abstract]
Pro forma net sales	$ 1,272.1	$ 1,275	$ 3,777.3	$ 3,859.9
Pro forma net (loss) earnings available to common shareholders	$ (62.8)	$ 1.7	$ 24.1	$ 18.5
Pro forma basic (loss) earnings per share (in US$ per share)	$ (0.93)	$ 0.02	$ 0.35	$ 0.27
Pro forma diluted (loss) earnings per share (in US$ per share)	$ (0.93)	$ 0.02	$ 0.35	$ 0.26

Goodwill (Details)

Goodwill (Details) - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2017	Sep. 30, 2016
Goodwill
Goodwill (gross)	$ 3,823.4	$ 3,777.1
Accumulated impairment losses	(697.4)	(697.4)
Goodwill	3,126	3,079.7
Goodwill acquired	46.3
Post Consumer Brands
Goodwill
Goodwill (gross)	1,994	1,994
Accumulated impairment losses	(609.1)	(609.1)
Goodwill	1,384.9	1,384.9
Goodwill acquired	0
Michael Foods Group
Goodwill
Goodwill (gross)	1,392.1	1,345.8
Accumulated impairment losses	0	0
Goodwill	1,392.1	1,345.8
Goodwill acquired	46.3
Active Nutrition
Goodwill
Goodwill (gross)	180.7	180.7
Accumulated impairment losses	(88.3)	(88.3)
Goodwill	92.4	92.4
Goodwill acquired	0
Private Brands
Goodwill
Goodwill (gross)	256.6	256.6
Accumulated impairment losses	0	0
Goodwill	256.6	$ 256.6
Goodwill acquired	$ 0

Income Taxes (Details)

Income Taxes (Details)	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Effective Income Tax Rate, Percent	35.00%	(57.10%)	34.40%	5.60%

Intangible Assets, net (Details

Intangible Assets, net (Details) - USD ($) $ in Millions	Jun. 30, 2017	Sep. 30, 2016
Finite-Lived Intangible Assets
Finite-Lived Intangible Assets, Gross	$ 2,880.9	$ 2,829.5
Finite-Lived Intangible Assets, Accumulated Amortization	(547.1)	(430.3)
Finite-Lived Intangible Assets, Net	2,333.8	2,399.2
Intangible Assets, Net (Excluding Goodwill)
Carrying amount, total	3,315.4	3,264
Other intangible assets, net	2,768.3	2,833.7
Trademarks
Indefinite-Lived Intangible Assets (Excluding Goodwill)
Carrying amount	434.5	434.5
Customer Relationships
Finite-Lived Intangible Assets
Finite-Lived Intangible Assets, Gross	2,056.6	2,012.7
Finite-Lived Intangible Assets, Accumulated Amortization	(385.9)	(302)
Finite-Lived Intangible Assets, Net	1,670.7	1,710.7
Trademarks
Finite-Lived Intangible Assets
Finite-Lived Intangible Assets, Gross	802.6	795.1
Finite-Lived Intangible Assets, Accumulated Amortization	(151.9)	(120.6)
Finite-Lived Intangible Assets, Net	650.7	674.5
Other Intangible Assets
Finite-Lived Intangible Assets
Finite-Lived Intangible Assets, Gross	21.7	21.7
Finite-Lived Intangible Assets, Accumulated Amortization	(9.3)	(7.7)
Finite-Lived Intangible Assets, Net	$ 12.4	$ 14

(Loss) Earnings Per Share (Deta

(Loss) Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
(Loss) Earnings Per Share, Diluted, by Common Class, Including Two Class Method
Net (Loss) Earnings Available to Common Shareholders	$ (62.9)	$ 0	$ 23.9	$ 12
Net (loss) earnings for diluted (loss) earnings per share	$ (62.9)	$ 0	$ 23.9	$ 12
Weighted Average Number of Shares Outstanding, Basic and Diluted	65,900,000	64,300,000	64,900,000	63,700,000
Dilutive Securities, Effect of TEUs on Basic (Loss) Earnings Per Share	1,600,000	4,900,000	3,400,000	4,900,000
Weighted-average shares for basic earnings per share	67,500,000	69,200,000	68,300,000	68,600,000
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	0	1,500,000	1,500,000
Weighted-average shares for diluted earnings per share	67,500,000	69,200,000	69,800,000	70,100,000
Basic (loss) earnings per share (in usd per share)	$ (0.93)	$ 0	$ 0.35	$ 0.17
Diluted (loss) earnings per share (in usd per share)	$ (0.93)	$ 0	$ 0.34	$ 0.17
Stock Options
(Loss) Earnings Per Share, Diluted, by Common Class, Including Two Class Method
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	0	1,200,000	1,100,000
Stock Appreciation Rights
(Loss) Earnings Per Share, Diluted, by Common Class, Including Two Class Method
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	0	100,000	100,000
Restricted Stock Awards
(Loss) Earnings Per Share, Diluted, by Common Class, Including Two Class Method
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	0	200,000	300,000
Minimum
(Loss) Earnings Per Share, Diluted, by Common Class, Including Two Class Method
Tangible Equity Unit, Equity Component, Settlement Rate per Unit			1.7114
Maximum
(Loss) Earnings Per Share, Diluted, by Common Class, Including Two Class Method
Tangible Equity Unit, Equity Component, Settlement Rate per Unit			2.0964

(Loss) Earnings Per Share Antid

(Loss) Earnings Per Share Antidilutive shares excluded from (loss) earnings per share (Details) - shares shares in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Stock Options
Antidilutive Securities Excluded from Computation of (Loss) Earnings Per Share
Antidilutive Securities Excluded from Computation of (Loss) Earnings Per Share, Amount	4.2	4.2	0.3	0.3
Stock Appreciation Rights
Antidilutive Securities Excluded from Computation of (Loss) Earnings Per Share
Antidilutive Securities Excluded from Computation of (Loss) Earnings Per Share, Amount	0.1	0.2	0	0
Restricted Stock Awards
Antidilutive Securities Excluded from Computation of (Loss) Earnings Per Share
Antidilutive Securities Excluded from Computation of (Loss) Earnings Per Share, Amount	0.7	0.9	0	0.2
Preferred Stock
Antidilutive Securities Excluded from Computation of (Loss) Earnings Per Share
Antidilutive Securities Excluded from Computation of (Loss) Earnings Per Share, Amount	9.1	9.1	9.1	9.1

Inventories (Details)

Inventories (Details) - USD ($) $ in Millions	Jun. 30, 2017	Sep. 30, 2016
Inventory [Abstract]
Raw materials and supplies	$ 120.2	$ 112.4
Work in process	17.3	17.4
Finished products	358.4	339.3
Flocks	30.7	34
Inventories	$ 526.6	$ 503.1

Property, net (Details)

Property, net (Details) - USD ($) $ in Millions	Jun. 30, 2017	Sep. 30, 2016
Property, Plant and Equipment [Abstract]
Property, at cost	$ 2,024	$ 1,900.3
Accumulated depreciation	(657.1)	(545.9)
Property, net	$ 1,366.9	$ 1,354.4

Derivative Financial Instrume47

Derivative Financial Instruments and Hedging (Details) - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2017	Sep. 30, 2016
Derivatives, Fair Value
Collateral Already Posted	$ 4.2	$ 6.1
Commodity and energy contracts
Derivatives, Fair Value
Derivative, Remaining Maturity	15 months
Commodity Contract
Derivatives, Fair Value
Derivative, Notional Amount	$ 77.1	49.8
Energy Contracts
Derivatives, Fair Value
Derivative, Notional Amount	32.6	23.6
Foreign exchange contracts - Option contracts, net
Derivatives, Fair Value
Derivative, Notional Amount	0	0
Foreign exchange contracts - Cross-Currency swaps
Derivatives, Fair Value
Derivative, Notional Amount	448.7	0
Interest Rate Swap
Derivatives, Fair Value
Derivative, Notional Amount	76.4	77.6
Interest rate swaps - Rate-lock swaps
Derivatives, Fair Value
Derivative, Notional Amount	$ 1,649.3	1,649.3
Foreign exchange contracts - Forward contracts
Derivatives, Fair Value
Derivative, Remaining Maturity	20 months
Derivative, Notional Amount	$ 24	0
Interest rate swap - Step-up swap
Derivatives, Fair Value
Derivative, Notional Amount	1,000	0
Other Current Assets | Commodity Contract
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	4.6	0.6
Other Current Assets | Energy Contracts
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	1.6	2.4
Other Current Assets | Foreign Exchange Contract
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	1.8	0
Other Assets | Foreign Exchange Contract
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	0.3	0
Assets, Total
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	8.3	3
Other Current Liabilities | Commodity Contract
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	0.6	3.3
Other Current Liabilities | Energy Contracts
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	0.4	0.2
Other Current Liabilities | Foreign Exchange Contract
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	2	0
Other Current Liabilities | Interest Rate Swap
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	2.4	2
Other Noncurrent Liabilities | Foreign Exchange Contract
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	14	0
Other Noncurrent Liabilities | Interest Rate Swap
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	199.6	313.2
Liabilities, Total
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	219	318.7
Portion Designated as Hedging Instruments | Other Current Assets | Commodity Contract
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	0	0
Portion Designated as Hedging Instruments | Other Current Assets | Energy Contracts
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	0	0
Portion Designated as Hedging Instruments | Other Current Assets | Foreign Exchange Contract
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	0.5	0
Portion Designated as Hedging Instruments | Other Assets | Foreign Exchange Contract
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	0.3	0
Portion Designated as Hedging Instruments | Assets, Total
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	0.8	0
Portion Designated as Hedging Instruments | Other Current Liabilities | Commodity Contract
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	0	0
Portion Designated as Hedging Instruments | Other Current Liabilities | Energy Contracts
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	0	0
Portion Designated as Hedging Instruments | Other Current Liabilities | Foreign Exchange Contract
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	0	0
Portion Designated as Hedging Instruments | Other Current Liabilities | Interest Rate Swap
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	0.5	0
Portion Designated as Hedging Instruments | Other Noncurrent Liabilities | Foreign Exchange Contract
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	0	0
Portion Designated as Hedging Instruments | Other Noncurrent Liabilities | Interest Rate Swap
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	2.8	0
Portion Designated as Hedging Instruments | Liabilities, Total
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	$ 3.3	$ 0

Derivative Financial Instrume48

Derivative Financial Instruments and Hedging (Gain) Loss recognized in Statement of Operations from derivative instruments (Details) - Derivatives Not Designated as Hedging Instruments - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Commodity Contract | Cost of Sales
Derivative Instruments, (Gain) Loss
(Gain) Loss Recognized in Statement of Operations	$ (6.9)	$ (1)	$ (3.5)	$ 3.2
Energy Contracts | Cost of Sales
Derivative Instruments, (Gain) Loss
(Gain) Loss Recognized in Statement of Operations	1.5	(4.1)	1.8	0.8
Foreign Exchange Contract | Selling, General and Administrative Expenses
Derivative Instruments, (Gain) Loss
(Gain) Loss Recognized in Statement of Operations	0.8	0	0.9	0
Foreign Exchange Contract | Other expense (income), net
Derivative Instruments, (Gain) Loss
(Gain) Loss Recognized in Statement of Operations	14.7	0	14.7	0
Interest rate swaps | Other expense (income), net
Derivative Instruments, (Gain) Loss
(Gain) Loss Recognized in Statement of Operations	$ 30.5	$ 62.6	$ (115)	$ 169.4

Derivative Financial Instrume49

Derivative Financial Instruments and Hedging Derivatives designated as hedges activity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Net cash flow hedge loss to be reclassified within twelve months			$ 0.5
Foreign Exchange Contract | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
(Gain) Loss Recognized in OCI [Effective Portion]	$ (0.9)	$ 0	(0.9)	$ 0
Foreign Exchange Contract | Selling, General and Administrative Expenses | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Loss Reclassified from Accumulated OCI into Earnings [Effective Portion], Foreign exchange contracts	0	0	0	0
Gain (Loss) Recognized in Earnings [Ineffective Portion and Amount Excluded from Effectiveness Testing], Foreign exchange contracts	0	0	0	0
Interest Rate Swap | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
(Gain) Loss Recognized in OCI [Effective Portion]	3.6	0	3.6	0
Interest Rate Swap | Interest expense, net | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Loss Reclassified from Accumulated OCI into Earnings [Effective Portion], Interest rate swaps	0.3	0	0.3	0
(Gain) Loss Recognized in Earnings [Ineffective Portion and Amount Excluded from Effectiveness Testing], Interest rate swaps	$ 0	$ 0	$ 0	$ 0

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Sep. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Deferred Compensation Plan Assets		$ 13.8		$ 11.5
Derivative assets		8.3		3
Assets, Fair Value Disclosure		22.1		14.5
Deferred compensation liabilities		19.9		17.3
Derivative Liability		219		318.7
Other Liabilities, Fair Value Disclosure		238.9		336
(Losses) Gain on assets held for sale	$ (1.1)	0.2	$ (9.5)
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Deferred Compensation Plan Assets		13.8		11.5
Derivative assets		0		0
Assets, Fair Value Disclosure		13.8		11.5
Deferred compensation liabilities		0		0
Derivative Liability		0		0
Other Liabilities, Fair Value Disclosure		0		0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Deferred Compensation Plan Assets		0		0
Derivative assets		8.3		3
Assets, Fair Value Disclosure		8.3		3
Deferred compensation liabilities		19.9		17.3
Derivative Liability		219		318.7
Other Liabilities, Fair Value Disclosure		238.9		336
Long-term Debt, Fair Value		6,577.3		4,852.2
Level 2 | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long-term Debt, Fair Value		4,374.7		4,835.9
Level 2 | Term Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long-term Debt, Fair Value		2,201.7		0
Level 2 | TEUs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long-term Debt, Fair Value		0		15
Level 2 | Secured Debt, Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long-term Debt, Fair Value		0.7		1.3
Level 2 | Capital Lease Obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long-term Debt, Fair Value		0.2		0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Carrying value of assets held for sale		0		10.1
(Losses) Gain on assets held for sale		0.2
Cash received from assets held for sale		$ (10.3)
Level 3 | Modesto, California facility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Carrying value of assets held for sale				4.3
Level 3 | Farmers Branch, Texas facility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Carrying value of assets held for sale				$ 5.8

Legal Proceedings (Details)

Legal Proceedings (Details) $ in Millions	3 Months Ended	9 Months Ended		24 Months Ended
	Jun. 30, 2016USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2016USD ($)	Dec. 31, 2009	Sep. 30, 2016USD ($)
Loss Contingencies
Loss Contingency, Number of Defendants				20
Michael Foods
Loss Contingencies
Claims filed, number				22
Litigation Settlement, Amount		$ 75
Litigation Settlement, Expense	$ 10	$ 74.5	$ 10
Estimated Litigation Liability					$ 28.5

Long-Term Debt (Details)

Long-Term Debt (Details)	3 Months Ended			9 Months Ended
	Jun. 30, 2017USD ($)	Mar. 31, 2017USD ($)	Jun. 30, 2016USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2016USD ($)	Sep. 30, 2016USD ($)
Debt Instrument
Secured Debt, Other	$ 700,000			$ 700,000		$ 1,300,000
Capital Lease Obligations	200,000			200,000		0
Long-term Debt	6,468,400,000			6,468,400,000		4,600,300,000
Current portion of long-term debt	(22,700,000)			(22,700,000)		(12,300,000)
Debt issuance costs, net	(77,200,000)			(77,200,000)		(53,500,000)
Plus: Unamortized premium	0			0		16,700,000
Long-term debt	6,368,500,000			6,368,500,000		4,551,200,000
Proceeds from issuance of long-term debt				3,950,000,000	$ 0
Payments of Debt Issuance Costs				52,400,000	0
Loss on extinguishment of debt	160,400,000		$ 0	222,900,000	0
Payments of tender premiums on debt extinguishment				219,800,000	$ 0
Line of Credit Facility, Maximum Borrowing Capacity	800,000,000			800,000,000
Letters of Credit Outstanding, Amount	10,000,000			10,000,000
Line of Credit Facility, Remaining Borrowing Capacity	$ 790,000,000			$ 790,000,000
Debt Covenant, Leverage Ratio	4.25			4.25
Debt Covenant, Percentage of Revolving Credit Commitments	30.00%			30.00%
Debt Covenant, Maximum Undischarged Judgments	$ 75,000,000			$ 75,000,000
Letter of Credit
Debt Instrument
Line of Credit Facility, Maximum Borrowing Capacity	50,000,000			50,000,000
Revolver Incremental Borrowing Capacity
Debt Instrument
Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases	700,000,000			700,000,000
Debt Covenant, Proforma Consolidated Leverage Ratio	6.50			6.50
Debt Covenant, Proforma Senior Secured Leverage Ratio	3			3
Debt Covenant, Quarterly Interest Ratio	2			$ 2
Revolving Credit Facility | Minimum
Debt Instrument
Debt Instrument, Basis Spread on Variable Rate				0.25%
Revolving Credit Facility | Maximum
Debt Instrument
Debt Instrument, Basis Spread on Variable Rate				0.375%
Revolving Credit Facility | Eurodollar | Minimum
Debt Instrument
Debt Instrument, Basis Spread on Variable Rate				1.75%
Revolving Credit Facility | Eurodollar | Maximum
Debt Instrument
Debt Instrument, Basis Spread on Variable Rate				2.25%
Revolving Credit Facility | Canadian Dollar Offered Rate | Minimum
Debt Instrument
Debt Instrument, Basis Spread on Variable Rate				0.75%
Revolving Credit Facility | Canadian Dollar Offered Rate | Maximum
Debt Instrument
Debt Instrument, Basis Spread on Variable Rate				1.25%
5.50% Senior Notes
Debt Instrument
Senior Notes	$ 1,000,000,000			$ 1,000,000,000		0
Debt Instrument, Interest Rate, Stated Percentage	5.50%			5.50%
5.75% Senior Notes
Debt Instrument
Senior Notes	$ 750,000,000			$ 750,000,000		0
Debt Instrument, Interest Rate, Stated Percentage	5.75%			5.75%
5.00% Senior Notes
Debt Instrument
Senior Notes	$ 1,750,000,000			$ 1,750,000,000		1,750,000,000
7.75% Senior Notes
Debt Instrument
Senior Notes	$ 0			$ 0		800,000,000
Debt Instrument, Interest Rate, Stated Percentage	7.75%			7.75%
Early Repayment of Senior Debt	$ 800,000,000
8.00% Senior Notes
Debt Instrument
Senior Notes	$ 137,500,000			$ 137,500,000		400,000,000
Debt Instrument, Interest Rate, Stated Percentage	8.00%			8.00%
Early Repayment of Senior Debt	$ 262,500,000
6.00% Senior Notes
Debt Instrument
Senior Notes	630,000,000			$ 630,000,000		630,000,000
6.75% Senior Notes
Debt Instrument
Senior Notes	$ 0			$ 0		875,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.75%			6.75%
Early Repayment of Senior Debt		$ 875,000,000
7.375% Senior Notes
Debt Instrument
Senior Notes	$ 0			$ 0		133,000,000
Debt Instrument, Interest Rate, Stated Percentage	7.375%			7.375%
Early Repayment of Senior Debt		133,000,000
Term Loan
Debt Instrument
Term Loan	$ 2,200,000,000			$ 2,200,000,000		0
Payments of Debt Issuance Costs	23,500,000
Term loan quarterly principal payment				$ 5,500,000
Term Loan | Base Rate
Debt Instrument
Debt Instrument, Basis Spread on Variable Rate				1.25%
Term Loan | Eurodollar
Debt Instrument
Debt Instrument, Basis Spread on Variable Rate				2.25%
5.50% and 5.75% Senior Notes
Debt Instrument
Proceeds from issuance of long-term debt		1,725,400,000
Payments of Debt Issuance Costs		24,600,000
7.375% and 6.75% Senior Notes
Debt Instrument
Loss on extinguishment of debt		62,500,000
Payments of tender premiums on debt extinguishment		67,900,000
Write off of Deferred Debt Issuance Cost		10,100,000
Write-off of unamortized debt premium		$ 15,500,000
7.75% and 8.00% Senior Notes
Debt Instrument
Loss on extinguishment of debt	160,400,000
Payments of tender premiums on debt extinguishment	151,900,000
Write off of Deferred Debt Issuance Cost	8,500,000
6.75%, 7.375%, 7.75% and 8.00% Senior Notes
Debt Instrument
Loss on extinguishment of debt				$ 222,900,000
Payments of tender premiums on debt extinguishment				219,800,000
Write off of Deferred Debt Issuance Cost				18,600,000
Write-off of unamortized debt premium				15,500,000
Joinder No. 1 Term Loan
Debt Instrument
Term Loan	1,200,000,000			1,200,000,000
Proceeds from issuance of long-term debt	1,200,000,000
Joinder No. 2 Term Loan
Debt Instrument
Term Loan	1,000,000,000			1,000,000,000
Proceeds from issuance of long-term debt	1,000,000,000
Line of Credit
Debt Instrument
Payments of Debt Issuance Costs	4,300,000
Tangible Equity Units Debt Component
Debt Instrument
Tangible Equity Units, Debt Component	$ 0			$ 0		$ 11,000,000

Pension and Other Postretirem53

Pension and Other Postretirement Benefits - Components of Net Periodic Benefit Cost (Gain) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Pension Benefits
Components of net periodic benefit cost (gain)
Service cost	$ 1	$ 1	$ 3	$ 3
Interest cost	0.6	0.7	1.7	1.9
Expected return on plan assets	(0.8)	(0.6)	(2.3)	(1.9)
Recognized net actuarial loss	0.4	0.3	1.2	0.8
Recognized prior service cost (credit)	0.1	0	0.2	0.2
Net periodic benefit cost (gain)	1.3	1.4	3.8	4
Other Postretirement Benefit Plan
Components of net periodic benefit cost (gain)
Service cost	0.2	0.1	0.5	0.9
Interest cost	0.5	0.8	1.5	3.2
Recognized net actuarial loss	0.2	0.5	0.5	1.2
Recognized prior service cost (credit)	(1.2)	(1.5)	(3.6)	(2.4)
Net periodic benefit cost (gain)	$ (0.3)	$ (0.1)	$ (1.1)	$ 2.9

Shareholders' Equity (Details)

Shareholders' Equity (Details) $ / shares in Units, shares in Millions, number in Millions, $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2017USD ($)$ / sharesshares	Jun. 30, 2017USD ($)$ / sharesshares	Jun. 30, 2016USD ($)
Stockholders' Equity Note [Abstract]
Treasury Stock, Shares, Acquired	2.2	3.9
Treasury Stock Acquired, Average Cost Per Share (in USD per share) | $ / shares	$ 81.92	$ 79.45
Total Cost of Treasury Shares Acquired | $	$ 180.7	$ 313.8	$ 0
Tangible Equity Units, Units exchanged	1.9	2.8
Stock Issued During Period, Shares, Conversion of Tangible Equity Units	3.2	4.7

Segments (Details)

Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Sep. 30, 2016
Segment Reporting Information
Net Sales	$ 1,272.1	$ 1,246.1	$ 3,777.3	$ 3,766
Interest expense, net	76.5	77.3	229.6	232.3
Loss on extinguishment of debt	160.4	0	222.9	0
Other expense (income), net	45.2	62.6	(100.3)	169.4
(Loss) earnings before income taxes	(91.6)	2.1	52	35.7
Depreciation and amortization	77.8	75.7	232.9	226.9
Assets	10,804.2		10,804.2		$ 9,360.6
Post Consumer Brands
Segment Reporting Information
Net Sales	427.3	434.5	1,279	1,286.2
Segment Profit	96.9	75.2	268.6	212.8
Depreciation and amortization	27.4	26.1	81.5	78.6
Assets	3,338.7		3,338.7		3,387
Michael Foods Group
Segment Reporting Information
Net Sales	524.2	518	1,579	1,662.1
Segment Profit	46.4	65.6	72.1	236
Depreciation and amortization	36.5	35.5	110	106
Assets	3,570		3,570		3,498.1
Active Nutrition
Segment Reporting Information
Net Sales	188.7	156.1	519.9	415.7
Segment Profit	28	17.7	74.1	42
Depreciation and amortization	6.3	6.4	18.8	18.8
Assets	614.1		614.1		624.8
Private Brands
Segment Reporting Information
Net Sales	132	137.9	399.7	403.2
Segment Profit	8	9	24.5	29.6
Depreciation and amortization	6.7	6.2	19.9	18.6
Assets	661.2		661.2		655.9
Corporate
Segment Reporting Information
Other (income) expenses	(11.2)	25.5	35.1	83
Depreciation and amortization	0.9	1.5	2.7	4.9
Assets	2,620.2		2,620.2		$ 1,194.8
Eliminations
Segment Reporting Information
Net Sales	(0.1)	(0.4)	(0.3)	(1.2)
Total Segment
Segment Reporting Information
Segment Profit	179.3	167.5	439.3	520.4
Depreciation and amortization	$ 76.9	$ 74.2	$ 230.2	$ 222

Subsequent Events (Details)

Subsequent Events (Details) - Jul. 03, 2017 - Weetabix - Subsequent Event £ in Millions, $ in Millions	USD ($)	GBP (£)
Subsequent Events
Proceeds from Joinder No. 2 Term Loan | $	$ 1,000
United Kingdom, Pounds
Subsequent Events
Payments to Acquire Businesses, Gross		£ 1,400
Business Combination, Consideration Transferred		£ 1,422.3