RPM International (RPM) 10-Q 7 Oct 20 2021 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Aug. 31, 2020	Oct. 05, 2020
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Aug. 31, 2020
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Entity Registrant Name	RPM International Inc.
Entity Central Index Key	0000110621
Current Fiscal Year End Date	--05-31
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		129,937,116
Entity File Number	1-14187
Entity Tax Identification Number	02-0642224
Entity Address, Address Line One	P.O. BOX 777
Entity Address, Address Line Two	2628 PEARL ROAD
Entity Address, City or Town	MEDINA
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	44258
City Area Code	330
Local Phone Number	273-5090
Entity Incorporation, State or Country Code	DE
Document Quarterly Report	true
Document Transition Report	false
Trading Symbol	RPM
Security Exchange Name	NYSE
Title of 12(b) Security	Common Stock, par value $0.01

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Aug. 31, 2020	May 31, 2020
Current Assets
Cash and cash equivalents	$ 251,765	$ 233,416
Trade accounts receivable (less allowances of $55,927 and $55,847, respectively)	1,159,130	1,137,957
Inventories	783,472	810,448
Prepaid expenses and other current assets	262,668	241,608
Total current assets	2,457,035	2,423,429
Property, Plant and Equipment, at Cost	1,803,824	1,755,190
Allowance for depreciation	(942,849)	(905,504)
Property, plant and equipment, net	860,975	849,686
Other Assets
Goodwill	1,278,534	1,250,066
Other intangible assets, net of amortization	583,787	584,380
Operating lease right-of-use assets	283,546	284,491
Deferred income taxes	36,577	30,894
Other	193,965	208,008
Total other assets	2,376,409	2,357,839
Total Assets	5,694,419	5,630,954
Current Liabilities
Accounts payable	525,980	535,311
Current portion of long-term debt	45,913	80,890
Accrued compensation and benefits	133,880	185,531
Accrued losses	22,269	20,021
Other accrued liabilities	364,735	271,827
Total current liabilities	1,092,777	1,093,580
Long-Term Liabilities
Long-term debt, less current maturities	2,297,172	2,458,290
Operating lease liabilities	242,903	244,691
Other long-term liabilities	545,707	510,175
Deferred income taxes	63,789	59,555
Total long-term liabilities	3,149,571	3,272,711
Commitments and contingencies (Note 13)
Stockholders' Equity
Preferred stock, par value $0.01; authorized 50,000 shares; none issued
Common stock, par value $0.01; authorized 300,000 shares; issued 143,813 and outstanding 129,975 as of August 31, 2020; issued 143,261 and outstanding 129,511 as of May 31, 2020	1,300	1,295
Paid-in capital	1,024,879	1,014,428
Treasury stock, at cost	(587,232)	(580,117)
Accumulated other comprehensive (loss)	(667,662)	(717,497)
Retained earnings	1,678,309	1,544,336
Total RPM International Inc. stockholders' equity	1,449,594	1,262,445
Noncontrolling Interest	2,477	2,218
Total equity	1,452,071	1,264,663
Total Liabilities and Stockholders' Equity	$ 5,694,419	$ 5,630,954

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Aug. 31, 2020	May 31, 2020
Statement Of Financial Position [Abstract]
Trade accounts receivable, allowances	$ 55,927	$ 55,847
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, authorized	50,000,000	50,000,000
Preferred stock, issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	300,000,000	300,000,000
Common stock, issued	143,813,000	143,261,000
Common stock, outstanding	129,975,000	129,511,000

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Aug. 31, 2020	Aug. 31, 2019
Income Statement [Abstract]
Net Sales		$ 1,606,670	$ 1,472,764
Cost of Sales		953,015	898,010
Gross Profit		653,655	574,754
Selling, General and Administrative Expenses		395,953	400,566
Restructuring Charges		4,233	6,622
Interest Expense		21,745	28,317
Investment (Income), Net		(12,763)	(5,385)
Other Expense, Net		3,118	1,785
Income Before Income Taxes		241,369	142,849
Provision for Income Taxes		60,584	36,353
Net Income		180,785	106,496
Less: Net Income Attributable to Noncontrolling Interests		190	308
Net Income Attributable to RPM International Inc. Stockholders		$ 180,595	$ 106,188
Average Number of Shares of Common Stock Outstanding:
Basic		128,418	128,882
Diluted	[1]	128,783	129,504
Earnings per Share of Common Stock Attributable to RPM International Inc. Stockholders:
Basic		$ 1.39	$ 0.82
Diluted		$ 1.39	$ 0.82
[1]	Restricted shares totaling 225,500 and 178,000 for the three months ended August 31, 2020 and 2019, respectively, were excluded from the calculation of diluted earnings per share as their effect would have been anti-dilutive.   In addition, stock appreciation rights (“SARs”) totaling 360,000 and 790,000 for the three months ended August 31, 2020 and 2019, respectively, were excluded from the calculation of diluted earnings per share as their effect would have been anti-dilutive.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net Income	$ 180,785	$ 106,496
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments (net of tax of $2,862 and $0, respectively)	64,667	(28,434)
Pension and other postretirement benefit liability adjustments (net of tax of $786 and $1,104, respectively)	3,260	3,623
Unrealized gain on securities and other (net of tax benefit of $82 and tax $1, respectively)	89	371
Unrealized gain (loss) on derivatives (net of tax of $5,542 and $579, respectively)	(18,112)	784
Total other comprehensive income (loss)	49,904	(23,656)
Total Comprehensive Income	230,689	82,840
Less: Comprehensive Income Attributable to Noncontrolling Interests	259	277
Comprehensive Income Attributable to RPM International Inc. Stockholders	$ 230,430	$ 82,563

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Statement Of Income And Comprehensive Income [Abstract]
Foreign currency translation adjustments, Tax	$ 2,862	$ 0
Pension and other postretirement benefit liability adjustments, Tax	786	1,104
Unrealized gain on securities and other, Tax expense (benefit)	(82)	1
Unrealized gain (loss) on derivatives, Tax	$ 5,542	$ 579

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Cash Flows From Operating Activities:
Net Income	$ 180,785	$ 106,496
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Depreciation and amortization	35,317	35,839
Restructuring charges, net of payments	(1,972)	611
Fair value adjustments to contingent earnout obligations	2,712
Deferred income taxes	1,938	(4,580)
Stock-based compensation expense	10,457	6,560
Net (gain) on marketable securities	(11,784)	(2,854)
Other	(10)	250
Changes in assets and liabilities, net of effect from purchases and sales of businesses:
Decrease in receivables	692	116,349
Decrease (increase) in inventory	43,395	(22,640)
(Increase) in prepaid expenses and other current and long-term assets	(5,526)	(5,801)
Increase (decrease) in accounts payable	4,945	(63,831)
(Decrease) in accrued compensation and benefits	(55,368)	(73,180)
Increase in accrued losses	1,936	404
Increase in other accrued liabilities	109,399	50,588
Other	1,173	928
Cash Provided By Operating Activities	318,089	145,139
Cash Flows From Investing Activities:
Capital expenditures	(41,488)	(36,602)
Acquisition of businesses, net of cash acquired		(30,598)
Purchase of marketable securities	(17,104)	(9,996)
Proceeds from sales of marketable securities	16,070	2,837
Other	244	(97)
Cash (Used For) Investing Activities	(42,278)	(74,456)
Cash Flows From Financing Activities:
Additions to long-term and short-term debt	136	75,718
Reductions of long-term and short-term debt	(213,090)	(874)
Cash dividends	(46,622)	(45,323)
Repurchases of common stock		(100,000)
Shares of common stock returned for taxes	(7,115)	(6,127)
Payments of acquisition-related contingent consideration	(2,217)	(131)
Other		(295)
Cash (Used For) Financing Activities	(268,908)	(77,032)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	11,446	(4,728)
Net Change in Cash and Cash Equivalents	18,349	(11,077)
Cash and Cash Equivalents at Beginning of Period	233,416	223,168
Cash and Cash Equivalents at End of Period	251,765	212,091
Cash paid during the period for:
Interest	17,566	18,485
Income Taxes, net of refunds	$ 16,845	$ 11,295

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Total RPM International Inc. Equity	Noncontrolling Interests
Beginning Balance at May. 31, 2019	$ 1,408,605	$ 1,310	$ 994,508	$ (437,290)	$ (577,628)	$ 1,425,052	$ 1,405,952	$ 2,653
Beginning Balance (in shares) at May. 31, 2019		130,995,000
Net income	106,496					106,188	106,188	308
Other comprehensive income (loss)	(23,656)				(23,625)		(23,625)	(31)
Dividends declared and paid	(45,323)					(45,323)	(45,323)
Other noncontrolling interest activity	(297)							(297)
Share repurchases under repurchase program	$ (100,000)	$ (16)	16	(100,000)			(100,000)
Share repurchases under repurchase program (in shares)	(1,655,616)	(1,656,000)
Stock compensation expense and other deferred compensation, shares granted less shares returned for taxes	$ 200	$ 3	6,557	(6,360)			200
Stock compensation expense and other deferred compensation, shares granted less shares returned for taxes (in shares)		330,000
Ending Balance at Aug. 31, 2019	1,346,025	$ 1,297	1,001,081	(543,650)	(601,253)	1,485,917	1,343,392	2,633
Ending Balance (in shares) at Aug. 31, 2019		129,669,000
Beginning Balance at May. 31, 2020	1,264,663	$ 1,295	1,014,428	(580,117)	(717,497)	1,544,336	1,262,445	2,218
Beginning Balance (in shares) at May. 31, 2020		129,511,000
Net income	180,785					180,595	180,595	190
Other comprehensive income (loss)	49,904				49,835		49,835	69
Dividends declared and paid	$ (46,622)					(46,622)	(46,622)
Share repurchases under repurchase program (in shares)	0
Stock compensation expense and other deferred compensation, shares granted less shares returned for taxes	$ 3,341	$ 5	10,451	(7,115)			3,341
Stock compensation expense and other deferred compensation, shares granted less shares returned for taxes (in shares)		464,000
Ending Balance at Aug. 31, 2020	$ 1,452,071	$ 1,300	$ 1,024,879	$ (587,232)	$ (667,662)	$ 1,678,309	$ 1,449,594	$ 2,477
Ending Balance (in shares) at Aug. 31, 2020		129,975,000

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Statement Of Stockholders Equity [Abstract]
Dividends declared and paid per share	$ 0.36	$ 0.35

Consolidation, Noncontrolling I

Consolidation, Noncontrolling Interests and Basis of Presentation	3 Months Ended
	Aug. 31, 2020
Accounting Policies [Abstract]
Consolidation, Noncontrolling Interests and Basis of Presentation	NOTE 1 — CONSOLIDATION, NONCONTROLLING INTERESTS AND BASIS OF PRESENTATION The accompanying unaudited Consolidated Financial Statements have been prepared in accordance with Generally Accepted Accounting Principles in the U.S. (“GAAP”) for interim financial information and the instructions to Form 10-Q. In our opinion, all adjustments (consisting of normal, recurring accruals) considered necessary for a fair presentation have been included for the three-month periods ended August 31, 2020 and August 31, 2019. For further information, refer to the Consolidated Financial Statements and Notes included in our Annual Report on Form 10-K for the year ended May 31, 2020. Our financial statements include all of our majority-owned subsidiaries. We account for our investments in less-than-majority-owned joint ventures, for which we have the ability to exercise significant influence, under the equity method. Effects of transactions between related companies are eliminated in consolidation. Noncontrolling interests are presented in our Consolidated Financial Statements as if parent company investors (controlling interests) and other minority investors (noncontrolling interests) in partially-owned subsidiaries have similar economic interests in a single entity. As a result, investments in noncontrolling interests are reported as equity in our Consolidated Financial Statements. Additionally, our Consolidated Financial Statements include 100% of a controlled subsidiary’s earnings, rather than only our share. Transactions between the parent company and noncontrolling interests are reported in equity as transactions between stockholders, provided that these transactions do not create a change in control. Our business is dependent on external weather factors. Historically, we have experienced strong sales and net income in our first, second and fourth fiscal quarters comprising the three-month periods ending August 31, November 30 and May 31, respectively, with weaker performance in our third fiscal quarter (December through February).

New Accounting Pronouncements

New Accounting Pronouncements	3 Months Ended
	Aug. 31, 2020
Accounting Changes And Error Corrections [Abstract]
New Accounting Pronouncements	NOTE 2 — NEW ACCOUNTING PRONOUNCEMENTS New Pronouncements Adopted In June 2016, the FASB issued ASU 2016-13, “Financial Instruments - Credit Losses,” which requires an organization to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Additionally, the standard amends the current available-for-sale securities other-than-temporary impairment model for debt securities. The guidance is effective for fiscal years beginning after December 15, 2019 and for interim periods therein. The adoption of this new guidance, effective June 1, 2020, using the modified retrospective transition method, did not result in a cumulative-effect adjustment to the opening balance of retained earnings at June 1, 2020 and did not have a material impact on the Company's Consolidated Financial Statements. Refer to Note 14, “Revenue” for additional information. In January 2017, the FASB issued ASU 2017-04, “Simplifying the Test for Goodwill Impairment,” to eliminate step two from the goodwill impairment test in order to simplify the subsequent measurement of goodwill. The guidance is effective for fiscal years beginning after December 15, 2019. The adoption of this new guidance, effective June 1, 2020, did not have a material impact on our Consolidated Financial Statements. In August 2018, the FASB issued ASU 2018-13, “Fair Value Measurement (Topic 820), – Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement,” which makes a number of changes meant to add, modify or remove certain disclosure requirements associated with the movement amongst or hierarchy associated with Level 1, Level 2 and Level 3 fair value measurements. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The adoption of this new guidance, effective June 1, 2020, did not have a material impact on our Consolidated Financial Statements or disclosures. New Pronouncements Issued In August 2018, the FASB issued ASU 2018-14, “Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20), Disclosure Framework – Changes to the Disclosure Requirements for Defined Benefit Plans,” which makes a number of changes meant to add, modify or remove certain disclosure requirements associated with employers that sponsor defined benefit or other postretirement plans. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early adoption is permitted for all entities and the amendments in this update are required to be applied on a retrospective basis to all periods presented. We are currently reviewing the provisions of this new pronouncement , but do not expect our adoption of this guidance to have a material impact on our Consolidated Financial Statements. In December 2019, the FASB issued ASU 2019-12, “Income Taxes (Topic 740),” which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying and amending existing guidance. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early adoption of the amendments is permitted, including adoption in any interim period for which financial statements have not yet been issued. Depending on the amendment, adoption may be applied on the retrospective, modified retrospective or prospective basis. We are currently reviewing the provisions of this new pronouncement, but do not expect our adoption of this guidance to have a material impact on our Consolidated Financial Statements.

Restructuring

Restructuring	3 Months Ended
	Aug. 31, 2020
Restructuring And Related Activities [Abstract]
Restructuring	NOTE 3 — RESTRUCTURING We record restructuring charges associated with management-approved restructuring plans to either reorganize one or more of our business segments, or to remove duplicative headcount and infrastructure associated with our businesses. Restructuring charges can include severance costs to eliminate a specified number of employees, infrastructure charges to vacate facilities and consolidate operations, contract cancellation costs and other costs. Restructuring charges are recorded based upon planned employee termination dates and site closure and consolidation plans. The timing of associated cash payments is dependent upon the type of restructuring charge and can extend over a multi-year period. We record the short-term portion of our restructuring liability in Other Accrued Liabilities and the long-term portion, if any, in Other Long-Term Liabilities in our Consolidated Balance Sheets. MAP to Growth Between May and August 2018, we approved and implemented the initial phases of a multi-year restructuring plan, which was originally referred to as the 2020 Margin Acceleration Plan (“2020 MAP to Growth”). The initial phases of our 2020 MAP to Growth affected all of our reportable segments, as well as our corporate/nonoperating segment, and focused on margin improvement by simplifying business processes; reducing inventory categories and rationalizing SKUs; eliminating underperforming businesses; reducing headcount and working capital; and improving operating efficiency. The activities included in the initial phases of the restructuring activities have been substantially completed. During the quarter ended November 30, 2018, we formally announced the remainder of our 2020 MAP to Growth. This multi-year restructuring is expected to increase operational efficiency while maintaining our entrepreneurial growth culture and will include three additional phases originally expected to be implemented between September 2018 and December 2020. Recently, however, the disruption caused by the outbreak of Covid-19 is expected to delay the finalization of our 2020 MAP to Growth past the original target completion date of December 31, 2020. We will provide an update on the revised target completion timeline at a later date. In recognition of the fact our restructuring plan will now extend into calendar year 2021, we will now refer to it simply as “MAP to Growth.” Our execution of the MAP to Growth will continue to drive the de-layering and simplification of management and businesses associated with group realignment. We have implemented four center-led functional areas including manufacturing and operations; procurement and supply chain; information technology; and accounting and finance. Our MAP to Growth optimizes our manufacturing facilities and will ultimately provide more efficient plant and distribution facilities. Through the balance sheet date, in association with our MAP to Growth initiative, we have completed, or are in the process of completing, the planned closure of 23 plants and 26 warehouses. We also expect to incur additional severance and benefit costs as part of our planned closure of these facilities. Throughout the remainder of our MAP to Growth initiative, we will continue to assess and find areas of improvement and cost savings. As such, the final implementation and total expected costs are subject to change. In addition to the announced plan, we have continued to broaden the scope of our MAP to Growth initiative, specifically in consolidation of the general and administrative areas, potential outsourcing, as well as additional future plant closures and consolidations; the estimated costs of which have not yet been finalized. The current total expected costs associated with this plan are outlined in the table below and increased by approximately $4.9 million compared to our previous estimate, primarily attributable to increases in expected severance and benefit charges of $2.0 million, facility closure and other related costs of $2.4 million and $0.5 million of other restructuring costs. Following is a summary of the charges recorded in connection with restructuring by reportable segment: Three Months Ended Three Months Ended Cumulative Costs Total Expected (In thousands) August 31, 2020 August 31, 2019 to Date Costs Construction Products Group ("CPG") Segment: Severance and benefit costs (a) $ 180 $ 160 $ 18,274 $ 23,132 Facility closure and other related costs 368 688 4,845 7,453 Other restructuring costs 36 - 1,976 2,070 Total Charges $ 584 $ 848 $ 25,095 $ 32,655 Performance Coatings Group ("PCG") Segment: Severance and benefit costs (b) $ 1,039 $ 2,500 $ 14,424 $ 16,997 Facility closure and other related costs 288 109 5,635 7,076 Other restructuring costs 29 - 630 790 Total Charges $ 1,356 $ 2,609 $ 20,689 $ 24,863 Consumer Segment: Severance and benefit costs (c) $ 790 $ 767 $ 11,257 $ 12,204 Facility closure and other related costs 597 516 9,534 12,075 Other restructuring costs 98 - 4,217 4,384 Total Charges $ 1,485 $ 1,283 $ 25,008 $ 28,663 Specialty Products Group ("SPG") Segment: Severance and benefit costs (d) $ 469 $ 366 $ 7,399 $ 8,757 Facility closure and other related costs 268 1,459 4,434 6,045 Other restructuring costs 71 64 1,193 1,442 Total Charges $ 808 $ 1,889 $ 13,026 $ 16,244 Corporate/Other Segment: Severance and benefit costs $ - $ (7 ) $ 13,347 $ 13,347 Total Charges $ - $ (7 ) $ 13,347 $ 13,347 Consolidated: Severance and benefit costs $ 2,478 $ 3,786 $ 64,701 $ 74,437 Facility closure and other related costs 1,521 2,772 24,448 32,649 Other restructuring costs 234 64 8,016 8,686 Total Charges $ 4,233 $ 6,622 $ 97,165 $ 115,772 (a) Severance and benefit costs are associated with the elimination of 9 positions and 21 positions during the three months ended August 31, 2020 and 2019, respectively. (b) Severance and benefit costs are associated with the elimination of 39 position and 51 positions during the three months ended August 31, 2020 and 2019, respectively. (c) Severance and benefit costs are associated with the elimination of three positions and two positions during the three months ended August 31, 2020 and 2019, respectively. (d) Severance and benefit costs are associated with the elimination of 28 positions and 10 positions during the three months ended August 31, 2020 and 2019, respectively. A summary of the activity in the restructuring reserves related to our MAP to Growth is as follows: (In thousands) Severance and Benefits Costs Facility Closure and Other Related Costs Other Restructuring Costs Total Balance at June 1, 2020 $ 7,357 $ 5,880 $ - 13,237 Additions charged to expense 2,478 1,521 234 4,233 Cash payments charged against reserve (4,942 ) (1,263 ) - (6,205 ) Non-cash charges included above (e) - - (234 ) (234 ) Balance at August 31, 2020 $ 4,893 $ 6,138 $ - $ 11,031 (In thousands) Severance and Benefits Costs Facility Closure and Other Related Costs Other Restructuring Costs Total Balance at June 1, 2019 $ 4,837 $ 7,857 $ - $ 12,694 Additions charged to expense 3,786 2,772 64 6,622 Cash payments charged against reserve (5,677 ) (334 ) - (6,011 ) Non-cash charges included above (e) - (865 ) (64 ) (929 ) Balance at August 31, 2019 $ 2,946 $ 9,430 $ - $ 12,376 ( e ) Non-cash charges primarily include accelerated vesting of equity awards and asset-write offs. In connection with our MAP to Growth, during the three months ended August 31, 2020, we incurred approximately $0.3 million of inventory-related charges at our Consumer segment. Comparatively, during the three months ended August 31, 2019, we incurred approximately $2.0 million, $0.9 million and $0.3 million of inventory-related charges at our PCG, Consumer and CPG segments, respectively. All of the aforementioned inventory-related charges are recorded in cost of sales in our Consolidated Statements of Income. These inventory charges were the result of the exit of a business or product line and SKU rationalization initiatives in connection with our overall plan of restructuring.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Aug. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	NOTE 4 — FAIR VALUE MEASUREMENTS Financial instruments recorded in the balance sheet include cash and cash equivalents, trade accounts receivable, marketable securities, notes and accounts payable, and debt. An allowance for expected uncollectible trade receivable amounts is established using a combination of specifically identified accounts to be reserved, and a reserve covering trends in collectibility. These estimates are based on an analysis of trends in collectibility and past experience, but are primarily made up of individual account balances identified as doubtful based on specific facts and conditions. Receivable losses are charged against the allowance when we conclude on uncollectibility. All derivative instruments are recognized in our Consolidated Balance Sheets and measured at fair value. Changes in the fair values of derivative instruments that do not qualify as hedges and/or any ineffective portion of hedges are recognized as a gain or (loss) in our Consolidated Statements of Income in the current period. Changes in the fair value of derivative instruments used effectively as cash flow hedges are recognized in other comprehensive income (loss), along with the change in the value of the hedged item. We do not hold or issue derivative instruments for speculative purposes. The valuation techniques utilized for establishing the fair values of assets and liabilities are based on observable and unobservable inputs. Observable inputs reflect readily obtainable data from independent sources, while unobservable inputs reflect management’s market assumptions. The fair value hierarchy has three levels based on the reliability of the inputs used to determine fair value, as follows: Level 1 Inputs — Quoted prices for identical instruments in active markets. Level 2 Inputs — Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable. Level 3 Inputs — Instruments with primarily unobservable value drivers. The following tables present our assets and liabilities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy. In addition, with respect to our derivative assets and liabilities measured at fair value, refer to Note 5, “Derivatives and Hedging” for discussion of their classification within the fair value hierarchy. (In thousands) Quoted in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Fair Value at August 31, 2020 Available-for-sale debt securities: U.S. Treasury and other government $ - $ 26,736 $ - $ 26,736 Corporate bonds - 191 - 191 Total available-for-sale debt securities - 26,927 - 26,927 Marketable equity securities: Stocks - domestic 5,806 - - 5,806 Mutual funds - foreign - 45,053 - 45,053 Mutual funds - domestic - 55,899 - 55,899 Total marketable equity securities 5,806 100,952 - 106,758 Contingent consideration - - (15,928 ) (15,928 ) Total $ 5,806 $ 127,879 $ (15,928 ) $ 117,757 (In thousands) Quoted in Active Markets for Identical (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Fair Value at May 31, 2020 Available-for-sale debt securities: U.S. Treasury and other government $ - $ 26,736 $ - $ 26,736 Corporate bonds - 186 - 186 Total available-for-sale debt securities - 26,922 - 26,922 Marketable equity securities: Stocks - domestic 3,870 - - 3,870 Mutual funds - foreign - 28,815 - 28,815 Mutual funds - domestic - 63,536 - 63,536 Total marketable equity securities 3,870 92,351 - 96,221 Contingent consideration - - (15,682 ) (15,682 ) Total $ 3,870 $ 119,273 $ (15,682 ) $ 107,461 Our investments in available-for-sale debt securities and marketable equity securities are valued using a market approach. The availability of inputs observable in the market varies from instrument to instrument and depends on a variety of factors, including the type of instrument, whether the instrument is actively traded and other characteristics particular to the transaction. For most of our financial instruments, pricing inputs are readily observable in the market, the valuation methodology used is widely accepted by market participants, and the valuation does not require significant management discretion. For other financial instruments, pricing inputs are less observable in the market and may require management judgment. The contingent consideration represents the estimated fair value of the additional variable cash consideration payable in connection with recent acquisitions that is contingent upon the achievement of certain performance milestones. We estimated the fair value using expected future cash flows over the period in which the obligation is expected to be settled, and applied a discount rate that appropriately captures a market participant's view of the risk associated with the obligation, which are considered to be Level 3 inputs. During the first three months of fiscal 2021, we paid approximately $2.8 million for settlements of contingent consideration obligations relating to certain performance milestones that were established in prior periods and achieved during the current period, and recorded an increase in the accrual for approximately $2.7 million related to fair value adjustments. During the first three months of fiscal 2020, we paid approximately $5.9 million for settlements of contingent consideration obligations relating to certain performance milestones that were established in prior periods and achieved during last year’s first three months. In the Consolidated Statements of Cash Flows, payments of acquisition-related contingent consideration for the amount recognized at fair value as of the acquisition date are reported in cash flows from financing activities, while payments of contingent consideration in excess of fair value are reported in cash flows from operating activities. The carrying value of our current financial instruments, which include cash and cash equivalents, marketable securities, trade accounts receivable, accounts payable and short-term debt approximates fair value because of the short-term maturity of these financial instruments. At August 31, 20 20 and May 31, 20 20 , the fair value of our long-term debt was estimated using active market quotes, based on our current incremental borrowing rates for similar types of borrowing arrangements, which are Level 2 inputs. Based on the analysis performed, the fair value and the carrying value of our financial instruments and long-term debt as of August 31 , 20 20 and May 31, 20 20 are as follows: At August 31, 2020 (In thousands) Carrying Value Fair Value Cash and cash equivalents $ 251,765 $ 251,765 Marketable equity securities 106,758 106,758 Available-for-sale debt securities 26,927 26,927 Long-term debt, including current portion 2,343,085 2,533,117 At May 31, 2020 (In thousands) Carrying Value Fair Value Cash and cash equivalents $ 233,416 $ 233,416 Marketable equity securities 87,111 87,111 Available-for-sale debt securities 26,922 26,922 Long-term debt, including current portion 2,539,180 2,618,719

Derivatives and Hedging

Derivatives and Hedging	3 Months Ended
	Aug. 31, 2020
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivatives and Hedging	NOTE 5 — DERIVATIVES AND HEDGING Derivative Instruments and Hedging Activities We are exposed to market risks, such as changes in foreign currency exchange rates and interest rates. To manage the volatility related to these exposures, from time to time, we enter into various derivative transactions. We use various types of derivative instruments including forward contracts and swaps. We formally assess, designate and document, as a hedge of an underlying exposure, each qualifying derivative instrument that will be accounted for as an accounting hedge at inception. Additionally, we assess, both at inception and at least quarterly thereafter, whether the financial instruments used in the hedging transaction are effective at offsetting changes in either the fair values or cash flows of the underlying exposures. Derivatives Designated as Hedges In October 2017, as a means of mitigating the impact of currency fluctuations on our Euro investments in foreign entities, we executed a fair value hedge and two cross currency swaps, in which we paid variable rate interest in Euros and received fixed rate interest in U.S. Dollars with a combined notional amount of approximately €85.25 million ($100 million U.S. Dollar equivalent), and which had a maturity date of November 2022. This effectively converted a portion of our U.S. Dollar denominated fixed-rate debt to Euro denominated variable rate debt. The fair value hedge was recognized at fair value in our Consolidated Balance Sheets, while changes in the fair value of the hedge were recognized in interest expense in our Consolidated Statements of Income. We designated the swaps as net investment hedges of our net investment in our European operations under ASU 2017-12 and applied the spot method to these hedges. In February 2020, the fair value hedge and two cross currency swaps agreements were terminated, and we received cash in the amount of $9.3 million, representing the fair value of the swap and interest accrued through the date of termination. Accordingly, hedge accounting was discontinued and a hedge accounting adjustment to our Senior Notes of $1.5 million was recorded and is being amortized to interest expense in the Consolidated Statements of Income through the termination of the 3.450% Notes in November 2022. Changes in the fair value of the cross currency swaps due to spot foreign exchange rates are recorded as cumulative translation adjustment within AOCI and will remain in AOCI until either the sale or substantially complete liquidation of the hedged subsidiaries. Separately, in February 2020, as a means of mitigating the impact of currency fluctuations on our Euro investments in foreign entities, we executed a cash flow hedge and two cross currency swaps, in which we will pay fixed rate interest in Euros and receive variable rate interest in U.S. Dollars with a combined notional amount of approximately €277.73 million ($300 million U.S. Dollar equivalent), and which have a maturity date of February 2023. This effectively converts our U.S. Dollar denominated variable rate debt to Euro denominated fixed rate debt. The cash flow hedge is recognized at fair value in our Consolidated Balance Sheets, while changes in the fair value of the hedge will be recognized in AOCI when the hedged items affect earnings. Amounts recognized in AOCI will be recognized in earnings in interest expense when the hedged interest payment is accrued. We designated the swaps as net investment hedges of our net investment in our European operations under ASU 2017-12 and applied the spot method to these hedges. The changes in fair value of the derivative instruments that are designated and qualify as hedges of net investments in foreign operations are recognized in AOCI to offset the changes in the values of the net investments being hedged. In addition, in February 2020, as a means of mitigating the variability of the functional-currency-equivalent cash flows associated with the U.S. Dollar denominated term loan facility (referred to as Foreign Borrower’s Term Loan), we executed a cash flow hedge, in which we will pay fixed rate interest in Euros and receive variable rate interest in U.S. Dollars with a notional amount of approximately € 92.52 million ($ 100 million U.S. Dollar equivalent), and which have a maturity date of February 2023 . This effectively converts our U.S. Dollar denominated variable rate debt to Euro denominated fixed rate debt. The cash flow hedge is recognized at fair value in our Consolidated Balance Sheets, while changes in the fair value of the hedge will be recognized in AOCI when the hedged items affect earnings. Amounts recorded in AOCI will be recognized in earnings in interest expense when the hedged interest payment is accrued. In addition, since this currency swap is a hedge of variability of the functional currency equivalent cash flows of a recognized liability to be remeasured at spot exchange rates under ASC 830, an amount that will offset the gain or loss arising from the remeasurement of the hedged liability will be reclassified each period from AOCI to earnings as foreign exchange gain/(loss), which is a component of SG&A expenses . The following table summarizes the location and effects of our derivatives instruments on the Consolidated Statements of Comprehensive Income and Consolidated Statements of Income for gains or losses initially recognized in AOCI in the Consolidated Balance Sheet: Pretax gain/(loss) recognized in AOCI Pretax gain/(loss) reclassified from AOCI into income (In thousands) Three Months Ended Three Months Ended Derivatives in hedging relationships August 31, 2020 August 31, 2019 Income statement location August 31, 2020 August 31, 2019 Interest rate swap (cash flow) $ (598 ) $ - Interest expense $ (766 ) $ - Cross currency swap (cash flow) (7,356 ) - Interest income 191 - Cross currency swap (cash flow) - - Foreign exchange (loss) (7,455 ) - Cross currency swap (net investment) (23,133 ) 1,397 Gain or (loss) on sale of subsidiary - - Total $ (31,087 ) $ 1,397 $ (8,030 ) $ - Derivatives Not Designated as Hedges At August 31, 2020, and May 31, 2020, we held one foreign currency forward contract at each period end designed to reduce our exposure to changes in the cash flows of intercompany foreign-currency-denominated loans related to changes in foreign currency exchange rates by fixing the functional currency cash flows. The contract has not been designated as a hedge; therefore, the changes in fair value of the derivative are recognized in earnings as a component of SG&A expenses. Amounts recognized in earnings did not have a material impact on our Consolidated Financial Statements for any period presented. As of August 31, 2020 and May 31, 2020, the notional amounts of the forward contract held to purchase foreign currencies was $84.7 million and $63.2 million, respectively. Disclosure about Derivative Instruments All of our derivative assets and liabilities measured at fair value are classified as Level 2 within the fair value hierarchy. We determine the fair value of our derivatives based on valuation methods, which project future cash flows and discount the future amounts to present value using market based observable inputs, including interest rate curves, foreign currency rates, as well as future and basis point spreads, as applicable. The fair values of qualifying and non-qualifying instruments used in hedging transactions as of August 31, 2020 and May 31, 2020 are as follows: (In thousands) Fair Value Derivatives Designated as Hedging Instruments Balance Sheet Location August 31, 2020 May 31, 2020 Assets: Cross Currency Swap (Net Investment) Other Current Assets $ 5,652 $ 5,352 Cross Currency Swap (Cash Flow) Other Current Assets 632 750 Cross Currency Swap (Net Investment) Other Assets (Long-Term) - 12,409 Liabilities: Interest Rate Swap (Cash Flow) Other Accrued Liabilities $ 3,238 $ 2,981 Cross Currency Swap (Net Investment) Other Accrued Liabilities 701 294 Cross Currency Swap (Net Investment) Other Long-Term Liabilities 29,537 18,204 Cross Currency Swap (Cash Flow) Other Long-Term Liabilities 11,320 3,608 Interest Rate Swap (Cash Flow) Other Long-Term Liabilities 4,761 5,187 (In thousands) Fair Value Derivatives Not Designated as Hedging Instruments Balance Sheet Location August 31, 2020 May 31, 2019 Liabilities: Foreign Currency Exchange Other Accrued Liabilities $ 28 $ 53

Investment (Income), Net

Investment (Income), Net	3 Months Ended
	Aug. 31, 2020
Other Income And Expenses [Abstract]
Investment (Income), Net	NOTE 6 — INVESTMENT Investment (income), net, consists of the following components: Three Months Ended August 31, August 31, (In thousands) 2020 2019 Interest (income) $ (667 ) $ (1,348 ) Net (gain) on marketable securities (11,784 ) (3,540 ) Dividend (income) (312 ) (497 ) Investment (income), net $ (12,763 ) $ (5,385 ) Net (Gain) on Marketable Securities Three Months Ended August 31, August 31, (In thousands) 2020 2019 Unrealized (gains) on marketable equity securities $ (13,956 ) $ (3,476 ) Realized (gains) losses on marketable equity securities 2,169 (68 ) Realized losses on available-for-sale debt securities 3 4 Net (gain) on marketable securities $ (11,784 ) $ (3,540 )

Other Expense, Net

Other Expense, Net	3 Months Ended
	Aug. 31, 2020
Other Income And Expenses [Abstract]
Other Expense, Net	NOTE 7 — Other expense, net, consists of the following components: Three Months Ended August 31, August 31, (In thousands) 2020 2019 Royalty (income) expense, net $ (31 ) $ 266 (Income) expense related to unconsolidated equity affiliates (187 ) 91 Pension non-service costs 3,336 1,428 Other expense, net $ 3,118 $ 1,785

Income Taxes

Income Taxes	3 Months Ended
	Aug. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 8 — INCOME TAXES The effective income tax rate of 25.1% for the three months ended August 31, 2020 compares to the effective income tax rate of 25.5% for the three months ended August 31, 2019. The effective income tax rates for the three months ended August 31, 2020 and 2019 reflect variances from the 21% statutory rate due primarily to the unfavorable impact of state and local income taxes, non-deductible business expenses and the net tax on foreign subsidiary income resulting from the global intangible low-taxed income provisions, partially offset by tax benefits related to equity compensation. Our deferred tax liability for unremitted foreign earnings was $12.0 million as of August 31, 2020, which represents our estimate of the foreign tax cost associated with the remittance of $433.7 million of foreign earnings that are not considered to be permanently reinvested. We have not provided for foreign withholding or income taxes on the remaining foreign subsidiaries’ undistributed earnings because such earnings have been retained and reinvested by the subsidiaries as of August 31, 2020. Accordingly, no provision has been made for foreign withholding or income taxes, which may become payable if the remaining undistributed earnings of foreign subsidiaries were remitted to us as dividends.

Inventories

Inventories	3 Months Ended
	Aug. 31, 2020
Inventory Disclosure [Abstract]
Inventories	NOTE 9 — INVENTORIES Inventories, net of reserves, were composed of the following major classes: (In thousands) August 31, 2020 May 31, 2020 Raw material and supplies $ 310,346 $ 282,579 Finished goods 473,126 527,869 Total Inventory, Net of Reserves $ 783,472 $ 810,448

Stock Repurchase Program

Stock Repurchase Program	3 Months Ended
	Aug. 31, 2020
Equity [Abstract]
Stock Repurchase Program	NOTE 10 — STOCK REPURCHASE PROGRAM On January 8, 2008, we announced our authorization of a stock repurchase program under which we may repurchase shares of RPM International Inc. common stock at management’s discretion for general corporate purposes. As announced on November 28, 2018, our goal is to return $1.0 billion in capital to stockholders by May 31, 2021 through share repurchases. On April 16, 2019, after taking into account share repurchases under our existing stock repurchase program to date, our Board of Directors authorized the repurchase of the remaining $600.0 million in value of RPM International Inc. common stock by May 31, 2021. As a result, we may repurchase shares from time to time in the open market or in private transactions at various times and in amounts and for prices that our management deems appropriate, subject to insider trading rules and other securities law restrictions. The timing of our purchases will depend upon prevailing market conditions, alternative uses of capital and other factors. We may limit or terminate the repurchase program at any time. Given recent macroeconomic uncertainty resulting from the Covid-19 pandemic, we have suspended our stock repurchase program. During the three months ended August 31, 2020, we did not repurchase any shares of our common stock under this program. During the three months ended August 31, 2019, we repurchased 1,655,616 shares of our common stock at a cost of approximately $100.0 million, or an average cost of $60.40 per share, under this program.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Aug. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Share	NOTE 11 — EARNINGS PER SHARE The following table sets forth the reconciliation of the numerator and denominator of basic and diluted earnings per share for the three-month periods ended August 31, 2020 and 2019. Three Months Ended August 31, August 31, (In thousands, except per share amounts) 2020 2019 Numerator for earnings per share: Net income attributable to RPM International Inc. stockholders $ 180,595 $ 106,188 Less: Allocation of earnings and dividends to participating securities (1,552 ) (623 ) Net income available to common shareholders - basic 179,043 105,565 Add: Undistributed earnings reallocated to unvested shareholders 4 2 Net income available to common shareholders - diluted $ 179,047 $ 105,567 Denominator for basic and diluted earnings per share: Basic weighted average common shares 128,418 128,882 Average diluted options and awards 365 622 Total shares for diluted earnings per share (1) 128,783 129,504 Earnings Per Share of Common Stock Attributable to RPM International Inc. Stockholders: Basic Earnings Per Share of Common Stock $ 1.39 $ 0.82 Method used to calculate basic earnings per share Two-class Two-class Diluted Earnings Per Share of Common Stock $ 1.39 $ 0.82 Method used to calculate diluted earnings per share Two-class Two-class ( 1 ) Restricted shares totaling 225,500 and 178,000 for the three months ended August 31, 2020 and 2019, respectively, were excluded from the calculation of diluted earnings per share as their effect would have been anti-dilutive. In addition, stock appreciation rights (“SARs”) totaling 360,000 and 790,000 for the three months ended August 31, 2020 and 2019, respectively, were excluded from the calculation of diluted earnings per share as their effect would have been anti-dilutive.

Pension Plans

Pension Plans	3 Months Ended
	Aug. 31, 2020
Compensation And Retirement Disclosure [Abstract]
Pension Plans	NOTE 12 — PENSION PLANS We offer defined benefit pension plans, defined contribution pension plans, and various postretirement benefit plans. The following tables provide the retirement-related benefit plans’ impact on income before income taxes for the three months ended August 31, 2020 and 2019: U.S. Plans Non-U.S. Plans Three Months Ended Three Months Ended (In thousands) August 31, August 31, August 31, August 31, Pension Benefits 2020 2019 2020 2019 Service cost $ 11,130 $ 9,856 $ 1,406 $ 1,391 Interest cost 3,806 5,104 1,122 1,193 Expected return on plan assets (8,279 ) (8,573 ) (1,607 ) (1,834 ) Amortization of: Prior service cost (credit) 2 2 (35 ) (9 ) Net actuarial losses recognized 7,501 4,629 526 523 Net Periodic Benefit Cost $ 14,160 $ 11,018 $ 1,412 $ 1,264 U.S. Plans Non-U.S. Plans Three Months Ended Three Months Ended (In thousands) August 31, August 31, August 31, August 31, Postretirement Benefits 2020 2019 2020 2019 Service cost $ - $ - $ 431 $ 429 Interest cost 19 37 283 282 Amortization of: Prior service (credit) (42 ) (55 ) - - Net actuarial (gains) losses recognized 10 (16 ) 130 158 Net Periodic Benefit (Credit) Cost $ (13 ) $ (34 ) $ 844 $ 869 Due to lower discount rates, net periodic pension and U.S. postretirement cost for fiscal 2021 is higher than our fiscal 2020 expense. We expect that pension expense will fluctuate on a year-to-year basis, depending upon the investment performance of plan assets and potential changes in interest rates, but such changes are not expected to be material to our consolidated financial results. We previously disclosed in our financial statements for the fiscal year ended May 31, 2020 that we expected to contribute approximately $8,000 to our retirement plans in the U.S. and approximately $6.7 million to plans outside the U.S. during the current fiscal year, and as of August 31, 2020, those amounts remain unchanged. During the year, we will evaluate whether to make additional contributions.

Contingencies and Accrued Losse

Contingencies and Accrued Losses	3 Months Ended
	Aug. 31, 2020
Commitments And Contingencies Disclosure [Abstract]
Contingencies and Accrued Losses	NOTE 13 — CONTINGENCIES AND ACCRUED LOSSES Product Liability Matters We provide, through our wholly owned insurance subsidiaries, certain insurance coverage, primarily product liability coverage, to our other subsidiaries. Excess coverage is provided by third-party insurers. Our product liability accruals provide for these potential losses as well as other uninsured claims. Product liability accruals are established based upon actuarial calculations of potential liability using industry experience, actual historical experience and actuarial assumptions developed for similar types of product liability claims, including development factors and lag times. To the extent there is a reasonable possibility that potential losses could exceed the amounts already accrued, we believe that the amount of any such additional loss would be immaterial to our results of operations, liquidity and consolidated financial position. Warranty Matters We also offer warranties on many of our products, as well as long-term warranty programs at certain of our businesses, and have established product warranty liabilities. We review these liabilities for adequacy on a quarterly basis and adjust them as necessary. The primary factors that could affect these liabilities may include changes in performance rates as well as costs of replacement. Provision for estimated warranty costs is recorded at the time of sale and periodically adjusted, as required, to reflect actual experience. It is probable that we will incur future losses related to warranty claims we have received but that have not been fully investigated and related to claims not yet received. While our warranty liabilities represent our best estimates at August 31, 2020, we can provide no assurances that we will not experience material claims in the future or that we will not incur significant costs to resolve such claims beyond the amounts accrued or beyond what we may recover from our suppliers. Based upon the nature of the expense, product warranty expense is recorded as a component of cost of sales or within SG&A. Also, due to the nature of our businesses, the amount of claims paid can fluctuate from one period to the next. While our warranty liabilities represent our best estimates of our expected losses at any given time, from time-to-time we may revise our estimates based on our experience relating to factors such as weather conditions, specific circumstances surrounding product installations and other factors. The following table includes the changes in our accrued warranty balances: Three Months Ended August 31, August 31, (In thousands) 2020 2019 Beginning Balance $ 11,106 $ 10,414 Deductions (1) (5,930 ) (5,513 ) Provision charged to expense 7,660 5,168 Ending Balance $ 12,836 $ 10,069 (1) Primarily claims paid during the year. Environmental Matters Like other companies participating in similar lines of business, some of our subsidiaries are involved in several proceedings relating to environmental matters. It is our policy to accrue remediation costs when it is probable that such efforts will be required and the related costs can be reasonably estimated. In general, our environmental accruals are undiscounted liabilities, which are exclusive of claims against third parties, and are not material to our financial statements during any of the periods presented. Other Contingencies We were notified by the SEC on June 24, 2014, that we are the subject of a formal investigation pertaining to the timing of our disclosure and accrual of loss reserves in fiscal 2013 with respect to the previously disclosed U.S. Department Of Justice (the “DOJ”) and the U.S. General Services Administration (the “GSA”) Office of Inspector General investigation into compliance issues relating to Tremco Roofing Division’s GSA contracts. As previously disclosed, our Audit Committee completed an investigation into the facts and circumstances surrounding the timing of our disclosure and accrual of loss reserves with respect to the GSA and DOJ investigation, and determined that it was appropriate to restate our financial results for the first, second and third quarters of fiscal 2013. The restatement shifted accrual amounts among the three quarters, which had the effect of reducing net income by $7.2 million and $10.8 million for the quarterly periods ended August 31, 2012, and November 30, 2012, respectively, and increasing net income for the quarterly period ended February 28, 2013 by $18.0 million. These restatements had no impact on our audited financial statements for the fiscal years ended May 31, 2013 or 2014. The Audit Committee’s investigation concluded that there was no intentional misconduct on the part of any of our officers. In connection with the foregoing, on September 9, 2016, the SEC filed an enforcement action against us and our General Counsel. We have cooperated with the SEC’s investigation and believe the allegations in the complaint mischaracterize both our and our General Counsel’s actions in connection with the matters related to our quarterly results in fiscal 2013 and are without merit. The complaint seeks disgorgement of gains that may have resulted from the conduct alleged in the complaint, and payment of unspecified monetary penalties from us and our General Counsel pursuant to Section 20(d) of the Securities Act and Section 21(d)(3) of the Exchange Act. Further, the complaint seeks to permanently enjoin us from violations of Sections 17(a)(2) and (a)(3) of the Securities Act, Sections 13(a), 13(b)(2)(A) and 13(b)(2)(B) of the Exchange Act, and Exchange Act Rules 12b-20, 13a-1, 13a-11 and 13a-13, and to permanently enjoin our General Counsel from violations of Sections 17(a)(2) and (a)(3) of the Securities Act and Exchange Act Rules 13b2-1 and 13b2-2(a). Both we and our General Counsel filed motions to dismiss the complaint on February 24, 2017. Those motions to dismiss the complaint were denied by the Court on September 29, 2017. We and our General Counsel filed answers to the complaint on October 16, 2017. Formal discovery is closed. Summary judgement briefing is due to conclude in April 2021. We intend to continue to contest the allegations in the complaint vigorously. Also in connection with the foregoing, a stockholder derivative action was filed in the United States District Court, Northern District of Ohio, Eastern Division, against certain of our directors and officers. The court has stayed this stockholder derivative action pending the completion of the SEC enforcement action. The action by the SEC could result in sanctions against us and/or our General Counsel and could impose substantial additional costs and distractions, regardless of its outcome. We have determined that it is probable that we will incur a loss relating to this matter and have estimated a range of potential loss. We have accrued at the low end of the range of loss, as no amount within the range is more likely to occur, and no amount within the estimated range of loss would have a material impact on our consolidated financial condition, results of operations or cash flows.

Revenue

Revenue	3 Months Ended
	Aug. 31, 2020
Revenue From Contract With Customer [Abstract]
Revenue	NOTE 14 – REVENUE We operate a portfolio of businesses and product lines that manufacture and sell a variety of specialty paints, protective coatings and roofing systems, sealants and adhesives. We disaggregate revenues from the sales of our products and services based upon geographical location by each of our reportable segments, which are aligned by similar economic factors, trends and customers, which best depict the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. See Note 15, “Segment Information,” for further details regarding our disaggregated revenues as well as a description of each of the unique revenue streams related to each of our four reportable segments. Revenue is recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. The majority of our revenue is recognized at a point in time. However, we also record revenues generated under construction contracts, mainly in connection with the installation of specialized roofing and flooring systems and related services. For certain polymer flooring installation projects, we account for our revenue using the output method, as we consider square footage of completed flooring to be the best measure of progress toward the complete satisfaction of the performance obligation. In contrast, for certain of our roofing installation projects, we account for our revenue using the input method, as that method was the best measure of performance as it considers costs incurred in relation to total expected project costs, which essentially represents the transfer of control for roofing systems to the customer. In general, for our construction contracts, we record contract revenues and related costs as our contracts progress on an over-time model. We have elected to apply the practical expedient to recognize revenue net of allowances for returns and any taxes collected from customers, which are subsequently remitted to governmental authorities. Payment terms and conditions vary by contract type, although our customers’ payment terms generally include a requirement to pay within 30 to 60 days of fulfilling our performance obligations. In instances where the timing of revenue recognition differs from the timing of invoicing, we have determined that our contracts generally do not include a significant financing component. We have elected to apply the practical expedient to treat all shipping and handling costs as fulfillment costs, as a significant portion of these costs are incurred prior to control transfer. Significant Judgments Our contracts with customers may include promises to transfer multiple products and/or services to a customer. Determining whether products and services are considered distinct performance obligations that should be accounted for separately versus together may require significant judgment. For example, judgment is required to determine whether products sold in connection with the sale of installation services are considered distinct and accounted for separately, or not distinct and accounted for together with installation services and recognized over time. We provide customer rebate programs and incentive offerings, including special pricing and co-operative advertising arrangements, promotions and other volume-based incentives. These customer programs and incentives are considered variable consideration and recognized as a reduction of net sales. Up-front consideration provided to customers is capitalized as a component of other assets and amortized over the estimated life of the contractual arrangement. We include in revenue variable consideration only to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the variable consideration is resolved. In general, this determination is made based upon known customer program and incentive offerings at the time of sale, and expected sales volume forecasts as it relates to our volume-based incentives. This determination is updated each reporting period. Certain of our contracts include contingent consideration that is receivable only upon the final inspection and acceptance of a project. We include estimates of such variable consideration in our transaction price. Based on historical experience, we consider the probability-based expected value method appropriate to estimate the amount of such variable consideration. Our products are generally sold with a right of return and we may provide other credits or incentives, which are accounted for as variable consideration when estimating the amount of revenue to recognize. Returns and credits are estimated at contract inception and updated at the end of each reporting period as additional information becomes available. We record a right of return liability to accrue for expected customer returns. Historical actual returns are used to estimate future returns as a percentage of current sales. Obligations for returns and refunds were not material individually or in the aggregate. We offer assurance type warranties on our products as well as separately sold warranty contracts. Revenue related to warranty contracts that are sold separately is recognized over the life of the warranty term. Warranty liabilities for our assurance type warranties are discussed further in Note 13, “Contingencies and Other Accrued Losses.” Contract Balances Timing of revenue recognition may differ from the timing of invoicing customers. Our contract assets are recorded for products and services that have been provided to our customer but have not yet been billed, and are included in prepaid expenses and other current assets in our consolidated balance sheets. Our short-term contract liabilities consist of advance payments, or deferred revenue, and are included in other accrued liabilities in our consolidated balance sheets. Trade accounts receivable, net of allowances, and net contract assets (liabilities) consisted of the following: (In thousands, except percents) August 31, 2020 May 31, 2020 $ Change % Change Trade accounts receivable, less allowances $ 1,159,130 $ 1,137,957 $ 21,173 1.9 % Contract assets $ 36,292 $ 25,249 $ 11,043 43.7 % Contract liabilities - short-term (25,605 ) (25,288 ) (317 ) 1.3 % Net Contract Assets (Liabilities) $ 10,687 $ (39 ) $ 10,726 The $10.7 million change in our net contract assets/(liabilities) from May 31, 2020 to August 31, 2020 resulted primarily due to the timing and volume of construction jobs in progress at August 31, 2020 versus May 31, 2020. During the first quarter of fiscal 2021, net sales at our U.S. based general contracting and roofing services business increased by $25.1 million as compared to the fourth quarter of fiscal 2020. During the fourth quarter of fiscal 2020, we began to mobilize on the jobs that were scheduled to be executed during the peak summer months. In the first quarter of fiscal 2021, we performed a substantial amount of work on these jobs, and as such, our unbilled revenue is higher as of August 31, 2020 than it was at May 31, 2020. We also record long-term deferred revenue, which amounted to $66.4 million and $66.0 million as of August 31, 2020 and May 31, 2020, respectively. The long-term portion of deferred revenue is related to warranty contracts and is included in other long-term liabilities in our consolidated balance sheets. We have elected to adopt the practical expedient to not disclose the aggregate amount of transaction price allocated to performance obligations that are unsatisfied as of the end of the reporting period for performance obligations that are part of a contract with an original expected duration of one year or less. We recognize an asset for the incremental costs of obtaining a contract with a customer if we expect the benefit of those costs to be longer than one year. As our contract terms are primarily one year or less in duration, we have elected to apply a practical expedient to expense costs as incurred for costs to obtain a contract with a customer when the amortization period would have been one year or less. These costs include our internal sales force compensation program and certain incentive programs as we have determined annual compensation is commensurate with annual sales activities. Allowance for Credit Losses Our primary allowance for credit losses is the allowance for doubtful accounts. The allowance for doubtful accounts reduces the accounts receivable balance to the estimated net realizable value equal to the amount that is expected to be collected. The allowance was based on assessments of current creditworthiness of customers, historical collection experience, the aging of receivables and other currently available evidence. Accounts receivable balances are written-off against the allowance if a final determination of uncollectibility is made. All provisions for allowances for doubtful collection of accounts are included in selling, general and administrative expenses. The following table summarizes the activity for the allowance for credit losses for the three months ended August 31, 2020: (In thousands) Balance at June 1, 2020 $ 55,847 Bad debt expense 1,274 Uncollectible accounts written off, net of recoveries (2,854 ) Translation adjustments 1,660 Balance at August 31, 2020 $ 55,927

Segment Information

Segment Information	3 Months Ended
	Aug. 31, 2020
Segment Reporting [Abstract]
Segment Information	NOTE 15 — SEGMENT INFORMATION We operate a portfolio of businesses and product lines that manufacture and sell a variety of specialty paints, protective coatings and roofing systems, sealants and adhesives. We manage our portfolio by organizing our businesses and product lines into four reportable segments as outlined below, which also represent our operating segments. Within each operating segment, we manage product lines and businesses which generally address common markets, share similar economic characteristics, utilize similar technologies and can share manufacturing or distribution capabilities. Our four operating segments represent components of our business for which separate financial information is available that is utilized on a regular basis by our chief operating decision maker in determining how to allocate the assets of the company and evaluate performance. These four operating segments are each managed by an operating segment manager, who is responsible for the day-to-day operating decisions and performance evaluation of the operating segment’s underlying businesses. We evaluate the profit performance of our segments primarily based on income before income taxes, but also look to earnings (loss) before interest and taxes (“EBIT”), and/or adjusted EBIT, as a performance evaluation measure because interest expense is essentially related to acquisitions, as opposed to segment operations. Our CPG reportable segment products are sold throughout North America and also account for the majority of our international sales. Our construction product lines are sold directly to contractors, distributors and end-users, such as industrial manufacturing facilities, public institutions and other commercial customers. Products and services within this reportable segment include construction sealants and adhesives, coatings and chemicals, roofing systems, concrete admixture and repair products, building envelope solutions, insulated cladding, flooring systems, and weatherproofing solutions. Our PCG reportable segment products are sold throughout North America, as well as internationally, and are sold directly to contractors, distributors and end-users, such as industrial manufacturing facilities, public institutions and other commercial customers. Products and services within this reportable segment include high-performance flooring solutions, corrosion control and fireproofing coatings, infrastructure repair systems, fiberglass reinforced plastic gratings and drainage systems. Our Consumer reportable segment manufactures and markets professional use and do-it-yourself (“DIY”) products for a variety of mainly consumer applications, including home improvement and personal leisure activities. Our Consumer segment’s major manufacturing and distribution operations are located primarily in North America, along with a few locations in Europe and other parts of the world. Our consumer reportable segment products are primarily sold directly to mass merchandisers, home improvement centers, hardware stores, paint stores, craft shops and through distributors. The Consumer reportable segment offers products that include specialty, hobby and professional paints; caulks; adhesives; silicone sealants and wood stains. Our SPG reportable segment products are sold throughout North America and a few international locations, primarily in Europe. Our specialty product lines are sold directly to contractors, distributors and end-users, such as industrial manufacturing facilities, public institutions and other commercial customers. The SPG reportable segment offers products that include industrial cleaners, restoration services equipment, colorants, nail enamels, exterior finishes, edible coatings and specialty glazes for pharmaceutical and food industries, and other specialty original equipment manufacturer (“OEM”) coatings. In addition to our four reportable segments, there is a category of certain business activities and expenses, referred to as corporate/other, that does not constitute an operating segment. This category includes our corporate headquarters and related administrative expenses, results of our captive insurance companies, gains or losses on the sales of certain assets and other expenses not directly associated with any reportable segment. Assets related to the corporate/other category consist primarily of investments, prepaid expenses and headquarters’ property and equipment. These corporate and other assets and expenses reconcile reportable segment data to total consolidated income before income taxes and identifiable assets. We reflect income from our joint ventures on the equity method, and receive royalties from our licensees. The following tables present a disaggregation of revenues by geography, and reflect the results of our reportable segments consistent with our management philosophy, by representing the information we utilize, in conjunction with various strategic, operational and other financial performance criteria, in evaluating the performance of our portfolio of businesses. Three Months Ended August 31, 2020 CPG Segment PCG Segment Consumer Segment SPG Segment Consolidated (In thousands) Net Sales (based on shipping location) United States $ 327,961 $ 156,062 $ 509,584 $ 133,497 $ 1,127,104 Foreign Canada 55,642 17,112 48,908 1,920 123,582 Europe 108,720 63,634 67,610 16,996 256,960 Latin America 34,853 5,594 7,392 465 48,304 Asia Pacific 17,639 4,886 7,674 5,146 35,345 Other Foreign 2,875 12,500 - - 15,375 Total Foreign 219,729 103,726 131,584 24,527 479,566 Total $ 547,690 $ 259,788 $ 641,168 $ 158,024 $ 1,606,670 Three Months Ended August 31, 2019 CPG Segment PCG Segment Consumer Segment SPG Segment Consolidated (In thousands) Net Sales (based on shipping location) United States $ 307,659 $ 181,906 $ 381,229 $ 131,731 $ 1,002,525 Foreign Canada 50,443 20,973 32,505 2,228 106,149 Europe 114,302 64,459 51,009 20,839 250,609 Latin America 42,847 8,441 6,315 432 58,035 Asia Pacific 20,396 7,424 6,181 4,858 38,859 Other Foreign 458 14,038 2,091 - 16,587 Total Foreign 228,446 115,335 98,101 28,357 470,239 Total $ 536,105 $ 297,241 $ 479,330 $ 160,088 $ 1,472,764 Three Months Ended (In thousands) August 31, August 31, Income (Loss) Before Income Taxes 2020 2019 CPG Segment $ 98,349 $ 82,680 PCG Segment 28,514 28,057 Consumer Segment 132,722 59,158 SPG Segment 20,449 23,327 Corporate/Other (38,665 ) (50,373 ) Consolidated $ 241,369 $ 142,849 (In thousands) August 31, May 31, Identifiable Assets 2020 2020 CPG Segment $ 1,664,612 $ 1,622,632 PCG Segment 949,224 925,569 Consumer Segment 2,104,448 2,067,017 SPG Segment 734,132 728,449 Corporate/Other 242,003 287,287 Consolidated $ 5,694,419 $ 5,630,954

Goodwill

Goodwill	3 Months Ended
	Aug. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	NOTE 16 — GOODWILL We account for goodwill and other intangible assets in accordance with the provisions of ASC 350 and account for business combinations using the acquisition method of accounting and, accordingly, the assets and liabilities of the entities acquired are recorded at their estimated fair values at the acquisition date. Goodwill represents the excess of the purchase price paid over the fair value of net assets acquired, including the amount assigned to identifiable intangible assets. We assess goodwill for impairment annually during the fourth quarter, or more frequently, if events and circumstances indicate impairment may have occurred. We test goodwill for impairment at the reporting unit level. Goodwill is assigned to reporting units that are expected to benefit from the synergies of the business combination as of the acquisition date. Once goodwill has been allocated to the reporting units, it no longer retains its identification with a particular acquisition and becomes identified with the reporting unit in its entirety. Accordingly, the fair value of the reporting unit as a whole is available to support the recoverability of its goodwill. We evaluate our reporting units when changes in our operating structure occur, and if necessary, reassign goodwill using a relative fair value allocation approach. The following table summarizes the changes in the carrying amount of goodwill, by reportable segment, for the periods presented: CPG PCG Consumer SPG (In thousands) Segment Segment Segment Segment Total Balance as of May 31, 2020 $ 405,354 $ 185,404 $ 496,218 $ 163,090 $ 1,250,066 Translation adjustments & other 21,396 265 4,075 2,732 28,468 Balance as of August 31, 2020 426,750 185,669 500,293 165,822 1,278,534

Subsequent Events

Subsequent Events	3 Months Ended
	Aug. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	NOTE 17 — SUBSEQUENT EVENTS Subsequent to the end of our first quarter, on September 1, 2020, we acquired Ali Industries, LLC, a leading manufacturer of sandpaper and other abrasives. The company, which is headquartered in Fairborn, Ohio, has annual net sales of approximately $75 million, and will be part of our Consumer reportable segment.

New Accounting Pronouncements (

New Accounting Pronouncements (Policies)	3 Months Ended
	Aug. 31, 2020
Accounting Changes And Error Corrections [Abstract]
New Accounting Pronouncements	NEW ACCOUNTING PRONOUNCEMENTS New Pronouncements Adopted In June 2016, the FASB issued ASU 2016-13, “Financial Instruments - Credit Losses,” which requires an organization to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Additionally, the standard amends the current available-for-sale securities other-than-temporary impairment model for debt securities. The guidance is effective for fiscal years beginning after December 15, 2019 and for interim periods therein. The adoption of this new guidance, effective June 1, 2020, using the modified retrospective transition method, did not result in a cumulative-effect adjustment to the opening balance of retained earnings at June 1, 2020 and did not have a material impact on the Company's Consolidated Financial Statements. Refer to Note 14, “Revenue” for additional information. In January 2017, the FASB issued ASU 2017-04, “Simplifying the Test for Goodwill Impairment,” to eliminate step two from the goodwill impairment test in order to simplify the subsequent measurement of goodwill. The guidance is effective for fiscal years beginning after December 15, 2019. The adoption of this new guidance, effective June 1, 2020, did not have a material impact on our Consolidated Financial Statements. In August 2018, the FASB issued ASU 2018-13, “Fair Value Measurement (Topic 820), – Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement,” which makes a number of changes meant to add, modify or remove certain disclosure requirements associated with the movement amongst or hierarchy associated with Level 1, Level 2 and Level 3 fair value measurements. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The adoption of this new guidance, effective June 1, 2020, did not have a material impact on our Consolidated Financial Statements or disclosures. New Pronouncements Issued In August 2018, the FASB issued ASU 2018-14, “Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20), Disclosure Framework – Changes to the Disclosure Requirements for Defined Benefit Plans,” which makes a number of changes meant to add, modify or remove certain disclosure requirements associated with employers that sponsor defined benefit or other postretirement plans. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early adoption is permitted for all entities and the amendments in this update are required to be applied on a retrospective basis to all periods presented. We are currently reviewing the provisions of this new pronouncement , but do not expect our adoption of this guidance to have a material impact on our Consolidated Financial Statements. In December 2019, the FASB issued ASU 2019-12, “Income Taxes (Topic 740),” which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying and amending existing guidance. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early adoption of the amendments is permitted, including adoption in any interim period for which financial statements have not yet been issued. Depending on the amendment, adoption may be applied on the retrospective, modified retrospective or prospective basis. We are currently reviewing the provisions of this new pronouncement, but do not expect our adoption of this guidance to have a material impact on our Consolidated Financial Statements.

Restructuring (Tables)

Restructuring (Tables)	3 Months Ended
	Aug. 31, 2020
Restructuring And Related Activities [Abstract]
Summary of Charges Recorded in Connection with Restructuring by Reportable Segment	Following is a summary of the charges recorded in connection with restructuring by reportable segment: Three Months Ended Three Months Ended Cumulative Costs Total Expected (In thousands) August 31, 2020 August 31, 2019 to Date Costs Construction Products Group ("CPG") Segment: Severance and benefit costs (a) $ 180 $ 160 $ 18,274 $ 23,132 Facility closure and other related costs 368 688 4,845 7,453 Other restructuring costs 36 - 1,976 2,070 Total Charges $ 584 $ 848 $ 25,095 $ 32,655 Performance Coatings Group ("PCG") Segment: Severance and benefit costs (b) $ 1,039 $ 2,500 $ 14,424 $ 16,997 Facility closure and other related costs 288 109 5,635 7,076 Other restructuring costs 29 - 630 790 Total Charges $ 1,356 $ 2,609 $ 20,689 $ 24,863 Consumer Segment: Severance and benefit costs (c) $ 790 $ 767 $ 11,257 $ 12,204 Facility closure and other related costs 597 516 9,534 12,075 Other restructuring costs 98 - 4,217 4,384 Total Charges $ 1,485 $ 1,283 $ 25,008 $ 28,663 Specialty Products Group ("SPG") Segment: Severance and benefit costs (d) $ 469 $ 366 $ 7,399 $ 8,757 Facility closure and other related costs 268 1,459 4,434 6,045 Other restructuring costs 71 64 1,193 1,442 Total Charges $ 808 $ 1,889 $ 13,026 $ 16,244 Corporate/Other Segment: Severance and benefit costs $ - $ (7 ) $ 13,347 $ 13,347 Total Charges $ - $ (7 ) $ 13,347 $ 13,347 Consolidated: Severance and benefit costs $ 2,478 $ 3,786 $ 64,701 $ 74,437 Facility closure and other related costs 1,521 2,772 24,448 32,649 Other restructuring costs 234 64 8,016 8,686 Total Charges $ 4,233 $ 6,622 $ 97,165 $ 115,772 (a) Severance and benefit costs are associated with the elimination of 9 positions and 21 positions during the three months ended August 31, 2020 and 2019, respectively. (b) Severance and benefit costs are associated with the elimination of 39 position and 51 positions during the three months ended August 31, 2020 and 2019, respectively. (c) Severance and benefit costs are associated with the elimination of three positions and two positions during the three months ended August 31, 2020 and 2019, respectively. (d) Severance and benefit costs are associated with the elimination of 28 positions and 10 positions during the three months ended August 31, 2020 and 2019, respectively.
Summary of Activity in Restructuring Reserves	A summary of the activity in the restructuring reserves related to our MAP to Growth is as follows: (In thousands) Severance and Benefits Costs Facility Closure and Other Related Costs Other Restructuring Costs Total Balance at June 1, 2020 $ 7,357 $ 5,880 $ - 13,237 Additions charged to expense 2,478 1,521 234 4,233 Cash payments charged against reserve (4,942 ) (1,263 ) - (6,205 ) Non-cash charges included above (e) - - (234 ) (234 ) Balance at August 31, 2020 $ 4,893 $ 6,138 $ - $ 11,031 (In thousands) Severance and Benefits Costs Facility Closure and Other Related Costs Other Restructuring Costs Total Balance at June 1, 2019 $ 4,837 $ 7,857 $ - $ 12,694 Additions charged to expense 3,786 2,772 64 6,622 Cash payments charged against reserve (5,677 ) (334 ) - (6,011 ) Non-cash charges included above (e) - (865 ) (64 ) (929 ) Balance at August 31, 2019 $ 2,946 $ 9,430 $ - $ 12,376 ( e ) Non-cash charges primarily include accelerated vesting of equity awards and asset-write offs.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Aug. 31, 2020
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring Basis and Categorized using Fair Value Hierarchy	The following tables present our assets and liabilities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy. In addition, with respect to our derivative assets and liabilities measured at fair value, refer to Note 5, “Derivatives and Hedging” for discussion of their classification within the fair value hierarchy. (In thousands) Quoted in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Fair Value at August 31, 2020 Available-for-sale debt securities: U.S. Treasury and other government $ - $ 26,736 $ - $ 26,736 Corporate bonds - 191 - 191 Total available-for-sale debt securities - 26,927 - 26,927 Marketable equity securities: Stocks - domestic 5,806 - - 5,806 Mutual funds - foreign - 45,053 - 45,053 Mutual funds - domestic - 55,899 - 55,899 Total marketable equity securities 5,806 100,952 - 106,758 Contingent consideration - - (15,928 ) (15,928 ) Total $ 5,806 $ 127,879 $ (15,928 ) $ 117,757 (In thousands) Quoted in Active Markets for Identical (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Fair Value at May 31, 2020 Available-for-sale debt securities: U.S. Treasury and other government $ - $ 26,736 $ - $ 26,736 Corporate bonds - 186 - 186 Total available-for-sale debt securities - 26,922 - 26,922 Marketable equity securities: Stocks - domestic 3,870 - - 3,870 Mutual funds - foreign - 28,815 - 28,815 Mutual funds - domestic - 63,536 - 63,536 Total marketable equity securities 3,870 92,351 - 96,221 Contingent consideration - - (15,682 ) (15,682 ) Total $ 3,870 $ 119,273 $ (15,682 ) $ 107,461
Fair Value and Carrying Value of Financial Instruments and Long-Term Debt	Based on the analysis performed, the fair value and the carrying value of our financial instruments and long-term debt as of August 31 , 20 20 and May 31, 20 20 are as follows: At August 31, 2020 (In thousands) Carrying Value Fair Value Cash and cash equivalents $ 251,765 $ 251,765 Marketable equity securities 106,758 106,758 Available-for-sale debt securities 26,927 26,927 Long-term debt, including current portion 2,343,085 2,533,117 At May 31, 2020 (In thousands) Carrying Value Fair Value Cash and cash equivalents $ 233,416 $ 233,416 Marketable equity securities 87,111 87,111 Available-for-sale debt securities 26,922 26,922 Long-term debt, including current portion 2,539,180 2,618,719

Derivatives and Hedging (Tables

Derivatives and Hedging (Tables)	3 Months Ended
	Aug. 31, 2020
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Schedule of Derivatives Instruments for Gains or Losses Initially Recognized in AOCI in Consolidated Balance Sheet	The following table summarizes the location and effects of our derivatives instruments on the Consolidated Statements of Comprehensive Income and Consolidated Statements of Income for gains or losses initially recognized in AOCI in the Consolidated Balance Sheet: Pretax gain/(loss) recognized in AOCI Pretax gain/(loss) reclassified from AOCI into income (In thousands) Three Months Ended Three Months Ended Derivatives in hedging relationships August 31, 2020 August 31, 2019 Income statement location August 31, 2020 August 31, 2019 Interest rate swap (cash flow) $ (598 ) $ - Interest expense $ (766 ) $ - Cross currency swap (cash flow) (7,356 ) - Interest income 191 - Cross currency swap (cash flow) - - Foreign exchange (loss) (7,455 ) - Cross currency swap (net investment) (23,133 ) 1,397 Gain or (loss) on sale of subsidiary - - Total $ (31,087 ) $ 1,397 $ (8,030 ) $ -
Schedule of Fair Values of Qualifying and Non-Qualifying Instruments Used in Hedging Transactions	The fair values of qualifying and non-qualifying instruments used in hedging transactions as of August 31, 2020 and May 31, 2020 are as follows: (In thousands) Fair Value Derivatives Designated as Hedging Instruments Balance Sheet Location August 31, 2020 May 31, 2020 Assets: Cross Currency Swap (Net Investment) Other Current Assets $ 5,652 $ 5,352 Cross Currency Swap (Cash Flow) Other Current Assets 632 750 Cross Currency Swap (Net Investment) Other Assets (Long-Term) - 12,409 Liabilities: Interest Rate Swap (Cash Flow) Other Accrued Liabilities $ 3,238 $ 2,981 Cross Currency Swap (Net Investment) Other Accrued Liabilities 701 294 Cross Currency Swap (Net Investment) Other Long-Term Liabilities 29,537 18,204 Cross Currency Swap (Cash Flow) Other Long-Term Liabilities 11,320 3,608 Interest Rate Swap (Cash Flow) Other Long-Term Liabilities 4,761 5,187 (In thousands) Fair Value Derivatives Not Designated as Hedging Instruments Balance Sheet Location August 31, 2020 May 31, 2019 Liabilities: Foreign Currency Exchange Other Accrued Liabilities $ 28 $ 53

Investment (Income), Net (Table

Investment (Income), Net (Tables)	3 Months Ended
	Aug. 31, 2020
Other Income And Expenses [Abstract]
Investment (Income), Net	Investment (income), net, consists of the following components: Three Months Ended August 31, August 31, (In thousands) 2020 2019 Interest (income) $ (667 ) $ (1,348 ) Net (gain) on marketable securities (11,784 ) (3,540 ) Dividend (income) (312 ) (497 ) Investment (income), net $ (12,763 ) $ (5,385 )
Net (Gain) on Marketable Securities	Net (Gain) on Marketable Securities Three Months Ended August 31, August 31, (In thousands) 2020 2019 Unrealized (gains) on marketable equity securities $ (13,956 ) $ (3,476 ) Realized (gains) losses on marketable equity securities 2,169 (68 ) Realized losses on available-for-sale debt securities 3 4 Net (gain) on marketable securities $ (11,784 ) $ (3,540 )

Other Expense, Net (Tables)

Other Expense, Net (Tables)	3 Months Ended
	Aug. 31, 2020
Other Income And Expenses [Abstract]
Other Expense, Net	Other expense, net, consists of the following components: Three Months Ended August 31, August 31, (In thousands) 2020 2019 Royalty (income) expense, net $ (31 ) $ 266 (Income) expense related to unconsolidated equity affiliates (187 ) 91 Pension non-service costs 3,336 1,428 Other expense, net $ 3,118 $ 1,785

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Aug. 31, 2020
Inventory Disclosure [Abstract]
Major Classes of Inventories, Net of Reserves	Inventories, net of reserves, were composed of the following major classes: (In thousands) August 31, 2020 May 31, 2020 Raw material and supplies $ 310,346 $ 282,579 Finished goods 473,126 527,869 Total Inventory, Net of Reserves $ 783,472 $ 810,448

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Aug. 31, 2020
Earnings Per Share [Abstract]
Reconciliation of Numerator and Denominator of Basic and Diluted Earnings Per Share	The following table sets forth the reconciliation of the numerator and denominator of basic and diluted earnings per share for the three-month periods ended August 31, 2020 and 2019. Three Months Ended August 31, August 31, (In thousands, except per share amounts) 2020 2019 Numerator for earnings per share: Net income attributable to RPM International Inc. stockholders $ 180,595 $ 106,188 Less: Allocation of earnings and dividends to participating securities (1,552 ) (623 ) Net income available to common shareholders - basic 179,043 105,565 Add: Undistributed earnings reallocated to unvested shareholders 4 2 Net income available to common shareholders - diluted $ 179,047 $ 105,567 Denominator for basic and diluted earnings per share: Basic weighted average common shares 128,418 128,882 Average diluted options and awards 365 622 Total shares for diluted earnings per share (1) 128,783 129,504 Earnings Per Share of Common Stock Attributable to RPM International Inc. Stockholders: Basic Earnings Per Share of Common Stock $ 1.39 $ 0.82 Method used to calculate basic earnings per share Two-class Two-class Diluted Earnings Per Share of Common Stock $ 1.39 $ 0.82 Method used to calculate diluted earnings per share Two-class Two-class ( 1 ) Restricted shares totaling 225,500 and 178,000 for the three months ended August 31, 2020 and 2019, respectively, were excluded from the calculation of diluted earnings per share as their effect would have been anti-dilutive. In addition, stock appreciation rights (“SARs”) totaling 360,000 and 790,000 for the three months ended August 31, 2020 and 2019, respectively, were excluded from the calculation of diluted earnings per share as their effect would have been anti-dilutive.

Pension Plans (Tables)

Pension Plans (Tables)	3 Months Ended
	Aug. 31, 2020
Compensation And Retirement Disclosure [Abstract]
Retirement-Related Benefit Plans' Impact on Income Before Income Taxes	The following tables provide the retirement-related benefit plans’ impact on income before income taxes for the three months ended August 31, 2020 and 2019: U.S. Plans Non-U.S. Plans Three Months Ended Three Months Ended (In thousands) August 31, August 31, August 31, August 31, Pension Benefits 2020 2019 2020 2019 Service cost $ 11,130 $ 9,856 $ 1,406 $ 1,391 Interest cost 3,806 5,104 1,122 1,193 Expected return on plan assets (8,279 ) (8,573 ) (1,607 ) (1,834 ) Amortization of: Prior service cost (credit) 2 2 (35 ) (9 ) Net actuarial losses recognized 7,501 4,629 526 523 Net Periodic Benefit Cost $ 14,160 $ 11,018 $ 1,412 $ 1,264 U.S. Plans Non-U.S. Plans Three Months Ended Three Months Ended (In thousands) August 31, August 31, August 31, August 31, Postretirement Benefits 2020 2019 2020 2019 Service cost $ - $ - $ 431 $ 429 Interest cost 19 37 283 282 Amortization of: Prior service (credit) (42 ) (55 ) - - Net actuarial (gains) losses recognized 10 (16 ) 130 158 Net Periodic Benefit (Credit) Cost $ (13 ) $ (34 ) $ 844 $ 869

Contingencies and Accrued Los_2

Contingencies and Accrued Losses (Tables)	3 Months Ended
	Aug. 31, 2020
Commitments And Contingencies Disclosure [Abstract]
Changes in Accrued Warranty Balances	The following table includes the changes in our accrued warranty balances: Three Months Ended August 31, August 31, (In thousands) 2020 2019 Beginning Balance $ 11,106 $ 10,414 Deductions (1) (5,930 ) (5,513 ) Provision charged to expense 7,660 5,168 Ending Balance $ 12,836 $ 10,069 (1) Primarily claims paid during the year.

Revenue (Tables)

Revenue (Tables)	3 Months Ended
	Aug. 31, 2020
Revenue From Contract With Customer [Abstract]
Trade Accounts Receivable Net of Allowances and Net Contract Assets (Liabilities)	Trade accounts receivable, net of allowances, and net contract assets (liabilities) consisted of the following: (In thousands, except percents) August 31, 2020 May 31, 2020 $ Change % Change Trade accounts receivable, less allowances $ 1,159,130 $ 1,137,957 $ 21,173 1.9 % Contract assets $ 36,292 $ 25,249 $ 11,043 43.7 % Contract liabilities - short-term (25,605 ) (25,288 ) (317 ) 1.3 % Net Contract Assets (Liabilities) $ 10,687 $ (39 ) $ 10,726
Summarizes the Activity for the Allowance for Credit Losses	The following table summarizes the activity for the allowance for credit losses for the three months ended August 31, 2020: (In thousands) Balance at June 1, 2020 $ 55,847 Bad debt expense 1,274 Uncollectible accounts written off, net of recoveries (2,854 ) Translation adjustments 1,660 Balance at August 31, 2020 $ 55,927

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Aug. 31, 2020
Segment Reporting [Abstract]
Results of Reportable Segments	The following tables present a disaggregation of revenues by geography, and reflect the results of our reportable segments consistent with our management philosophy, by representing the information we utilize, in conjunction with various strategic, operational and other financial performance criteria, in evaluating the performance of our portfolio of businesses. Three Months Ended August 31, 2020 CPG Segment PCG Segment Consumer Segment SPG Segment Consolidated (In thousands) Net Sales (based on shipping location) United States $ 327,961 $ 156,062 $ 509,584 $ 133,497 $ 1,127,104 Foreign Canada 55,642 17,112 48,908 1,920 123,582 Europe 108,720 63,634 67,610 16,996 256,960 Latin America 34,853 5,594 7,392 465 48,304 Asia Pacific 17,639 4,886 7,674 5,146 35,345 Other Foreign 2,875 12,500 - - 15,375 Total Foreign 219,729 103,726 131,584 24,527 479,566 Total $ 547,690 $ 259,788 $ 641,168 $ 158,024 $ 1,606,670 Three Months Ended August 31, 2019 CPG Segment PCG Segment Consumer Segment SPG Segment Consolidated (In thousands) Net Sales (based on shipping location) United States $ 307,659 $ 181,906 $ 381,229 $ 131,731 $ 1,002,525 Foreign Canada 50,443 20,973 32,505 2,228 106,149 Europe 114,302 64,459 51,009 20,839 250,609 Latin America 42,847 8,441 6,315 432 58,035 Asia Pacific 20,396 7,424 6,181 4,858 38,859 Other Foreign 458 14,038 2,091 - 16,587 Total Foreign 228,446 115,335 98,101 28,357 470,239 Total $ 536,105 $ 297,241 $ 479,330 $ 160,088 $ 1,472,764 Three Months Ended (In thousands) August 31, August 31, Income (Loss) Before Income Taxes 2020 2019 CPG Segment $ 98,349 $ 82,680 PCG Segment 28,514 28,057 Consumer Segment 132,722 59,158 SPG Segment 20,449 23,327 Corporate/Other (38,665 ) (50,373 ) Consolidated $ 241,369 $ 142,849 (In thousands) August 31, May 31, Identifiable Assets 2020 2020 CPG Segment $ 1,664,612 $ 1,622,632 PCG Segment 949,224 925,569 Consumer Segment 2,104,448 2,067,017 SPG Segment 734,132 728,449 Corporate/Other 242,003 287,287 Consolidated $ 5,694,419 $ 5,630,954

Goodwill (Tables)

Goodwill (Tables)	3 Months Ended
	Aug. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Changes in Carrying Amount of Goodwill, by Reportable Segment	The following table summarizes the changes in the carrying amount of goodwill, by reportable segment, for the periods presented: CPG PCG Consumer SPG (In thousands) Segment Segment Segment Segment Total Balance as of May 31, 2020 $ 405,354 $ 185,404 $ 496,218 $ 163,090 $ 1,250,066 Translation adjustments & other 21,396 265 4,075 2,732 28,468 Balance as of August 31, 2020 426,750 185,669 500,293 165,822 1,278,534

Consolidation, Noncontrolling_2

Consolidation, Noncontrolling Interests and Basis of Presentation - Additional Information (Detail)	Aug. 31, 2020
Accounting Policies [Abstract]
Percentage of controlled subsidiary's earnings	100.00%

Restructuring - Additional Info

Restructuring - Additional Information (Detail) - MAP to Growth - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Restructuring Cost And Reserve [Line Items]
Restructuring plan, expected to be formulated	During the quarter ended November 30, 2018
Increase in current total expected costs	$ 4.9
Consumer Segment | Cost of Sales
Restructuring Cost And Reserve [Line Items]
Inventory-related charges	0.3	$ 0.9
PCG Segment | Cost of Sales
Restructuring Cost And Reserve [Line Items]
Inventory-related charges		2
CPG Segment | Cost of Sales
Restructuring Cost And Reserve [Line Items]
Inventory-related charges		$ 0.3
Severance and Benefit Charges
Restructuring Cost And Reserve [Line Items]
Increase in current total expected costs	2
Facility Closure and Other Related Costs
Restructuring Cost And Reserve [Line Items]
Increase in current total expected costs	2.4
Other Restructuring Costs
Restructuring Cost And Reserve [Line Items]
Increase in current total expected costs	$ 0.5

Summary of Charges Recorded in

Summary of Charges Recorded in Connection with Restructuring by Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Restructuring Cost And Reserve [Line Items]
Current Year Charges	$ 4,233	$ 6,622
MAP to Growth
Restructuring Cost And Reserve [Line Items]
Current Year Charges	4,233	6,622
Cumulative Costs to Date	97,165
Total Expected Costs	115,772
MAP to Growth | Severance and Benefit Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	2,478	3,786
Cumulative Costs to Date	64,701
Total Expected Costs	74,437
MAP to Growth | Other Restructuring Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	234	64
Cumulative Costs to Date	8,016
Total Expected Costs	8,686
MAP to Growth | Facility Closure and Other Related Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	1,521	2,772
Cumulative Costs to Date	24,448
Total Expected Costs	32,649
MAP to Growth | Construction Products Segment
Restructuring Cost And Reserve [Line Items]
Current Year Charges	584	848
Cumulative Costs to Date	25,095
Total Expected Costs	32,655
MAP to Growth | Construction Products Segment | Severance and Benefit Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	180	160
Cumulative Costs to Date	18,274
Total Expected Costs	23,132
MAP to Growth | Construction Products Segment | Other Restructuring Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	36
Cumulative Costs to Date	1,976
Total Expected Costs	2,070
MAP to Growth | Construction Products Segment | Facility Closure and Other Related Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	368	688
Cumulative Costs to Date	4,845
Total Expected Costs	7,453
MAP to Growth | Performance Coatings Segment
Restructuring Cost And Reserve [Line Items]
Current Year Charges	1,356	2,609
Cumulative Costs to Date	20,689
Total Expected Costs	24,863
MAP to Growth | Performance Coatings Segment | Severance and Benefit Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	1,039	2,500
Cumulative Costs to Date	14,424
Total Expected Costs	16,997
MAP to Growth | Performance Coatings Segment | Other Restructuring Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	29
Cumulative Costs to Date	630
Total Expected Costs	790
MAP to Growth | Performance Coatings Segment | Facility Closure and Other Related Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	288	109
Cumulative Costs to Date	5,635
Total Expected Costs	7,076
MAP to Growth | Consumer Segment
Restructuring Cost And Reserve [Line Items]
Current Year Charges	1,485	1,283
Cumulative Costs to Date	25,008
Total Expected Costs	28,663
MAP to Growth | Consumer Segment | Severance and Benefit Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	790	767
Cumulative Costs to Date	11,257
Total Expected Costs	12,204
MAP to Growth | Consumer Segment | Other Restructuring Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	98
Cumulative Costs to Date	4,217
Total Expected Costs	4,384
MAP to Growth | Consumer Segment | Facility Closure and Other Related Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	597	516
Cumulative Costs to Date	9,534
Total Expected Costs	12,075
MAP to Growth | Specialty Products Group ("SPG") Segment
Restructuring Cost And Reserve [Line Items]
Current Year Charges	808	1,889
Cumulative Costs to Date	13,026
Total Expected Costs	16,244
MAP to Growth | Specialty Products Group ("SPG") Segment | Severance and Benefit Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	469	366
Cumulative Costs to Date	7,399
Total Expected Costs	8,757
MAP to Growth | Specialty Products Group ("SPG") Segment | Other Restructuring Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	71	64
Cumulative Costs to Date	1,193
Total Expected Costs	1,442
MAP to Growth | Specialty Products Group ("SPG") Segment | Facility Closure and Other Related Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges	268	1,459
Cumulative Costs to Date	4,434
Total Expected Costs	6,045
MAP to Growth | Corporate/Other Segment
Restructuring Cost And Reserve [Line Items]
Current Year Charges		(7)
Cumulative Costs to Date	13,347
Total Expected Costs	13,347
MAP to Growth | Corporate/Other Segment | Severance and Benefit Costs
Restructuring Cost And Reserve [Line Items]
Current Year Charges		$ (7)
Cumulative Costs to Date	13,347
Total Expected Costs	$ 13,347

Summary of Charges Recorded i_2

Summary of Charges Recorded in Connection with Restructuring by Reportable Segment (Parenthetical) (Detail) - MAP to Growth - Severance and Benefit Costs - Position	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Construction Products Segment
Restructuring Cost And Reserve [Line Items]
Number of positions eliminated	9	21
Performance Coatings Segment
Restructuring Cost And Reserve [Line Items]
Number of positions eliminated	39	51
Consumer Segment
Restructuring Cost And Reserve [Line Items]
Number of positions eliminated	3	2
Specialty Products Group ("SPG") Segment
Restructuring Cost And Reserve [Line Items]
Number of positions eliminated	28	10

Summary of Activity in Restruct

Summary of Activity in Restructuring Reserves (Detail) - USD ($) $ in Thousands		3 Months Ended
		Aug. 31, 2020	Aug. 31, 2019
Restructuring Cost And Reserve [Line Items]
Additions charged to expense		$ 4,233	$ 6,622
MAP to Growth
Restructuring Cost And Reserve [Line Items]
Beginning balance		13,237	12,694
Additions charged to expense		4,233	6,622
Cash payments charged against reserve		(6,205)	(6,011)
Non-cash charges included above	[1]	(234)	(929)
Ending balance		11,031	12,376
MAP to Growth | Severance and Benefit Costs
Restructuring Cost And Reserve [Line Items]
Beginning balance		7,357	4,837
Additions charged to expense		2,478	3,786
Cash payments charged against reserve		(4,942)	(5,677)
Ending balance		4,893	2,946
MAP to Growth | Facility Closure and Other Related Costs
Restructuring Cost And Reserve [Line Items]
Beginning balance		5,880	7,857
Additions charged to expense		1,521	2,772
Cash payments charged against reserve		(1,263)	(334)
Non-cash charges included above	[1]		(865)
Ending balance		6,138	9,430
MAP to Growth | Other Restructuring Costs
Restructuring Cost And Reserve [Line Items]
Additions charged to expense		234	64
Non-cash charges included above	[1]	$ (234)	$ (64)
[1]	Non-cash charges primarily include accelerated vesting of equity awards and asset-write offs.

Assets and Liabilities Measured

Assets and Liabilities Measured at Fair Value on Recurring Basis and Categorized using Fair Value Hierarchy (Detail) - Fair Value,Measurements Recurring - USD ($) $ in Thousands	Aug. 31, 2020	May 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	$ 26,927	$ 26,922
Total marketable equity securities	106,758	96,221
Assets (liabilities) at fair value	117,757	107,461
U.S. Treasury and other government
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	26,736	26,736
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	191	186
Stocks | Domestic
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable equity securities	5,806	3,870
Mutual funds | Foreign
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable equity securities	45,053	28,815
Mutual funds | Domestic
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable equity securities	55,899	63,536
Contingent consideration liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	(15,928)	(15,682)
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable equity securities	5,806	3,870
Assets (liabilities) at fair value	5,806	3,870
Quoted Prices in Active Markets for Identical Assets (Level 1) | Stocks | Domestic
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable equity securities	5,806	3,870
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	26,927	26,922
Total marketable equity securities	100,952	92,351
Assets (liabilities) at fair value	127,879	119,273
Significant Other Observable Inputs (Level 2) | U.S. Treasury and other government
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	26,736	26,736
Significant Other Observable Inputs (Level 2) | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	191	186
Significant Other Observable Inputs (Level 2) | Mutual funds | Foreign
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable equity securities	45,053	28,815
Significant Other Observable Inputs (Level 2) | Mutual funds | Domestic
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable equity securities	55,899	63,536
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets (liabilities) at fair value	(15,928)	(15,682)
Significant Unobservable Inputs (Level 3) | Contingent consideration liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	$ (15,928)	$ (15,682)

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Fair Value Disclosures [Abstract]
Settlements of contingent consideration obligations	$ 2.8	$ 5.9
Increase in accrual related to fair value adjustments	$ 2.7

Fair Value and Carrying Value o

Fair Value and Carrying Value of Financial Instruments and Long-Term Debt (Detail) - USD ($) $ in Thousands	Aug. 31, 2020	May 31, 2020
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 251,765	$ 233,416
Marketable equity securities	106,758	87,111
Available-for-sale debt securities	26,927	26,922
Long-term debt, including current portion	2,343,085	2,539,180
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	251,765	233,416
Marketable equity securities	106,758	87,111
Available-for-sale debt securities	26,927	26,922
Long-term debt, including current portion	$ 2,533,117	$ 2,618,719

Derivatives and Hedging - Addit

Derivatives and Hedging - Additional Information (Detail)	Oct. 31, 2017USD ($)CrossCurrencySwap	Feb. 29, 2020USD ($)CrossCurrencySwap	Aug. 31, 2020USD ($)ForwardContract	May 31, 2020USD ($)ForwardContract	Feb. 29, 2020EUR (€)CrossCurrencySwap	Oct. 31, 2017EUR (€)CrossCurrencySwap
Derivatives Designated as Hedging Instruments
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Number of cross currency swaps executed | CrossCurrencySwap	2					2
Notional amount	$ 100,000,000					€ 85,250,000
Derivative instruments maturity date	2022-11
Number of cross currency swaps terminated | CrossCurrencySwap		2			2
Cash received on derivative fair value hedge | $		$ 9,300,000
Discontinuation of price risk cash flow hedge			hedge accounting was discontinued and a hedge accounting adjustment to our Senior Notes of $1.5 million was recorded and is being amortized to interest expense in the Consolidated Statements of Income through the termination of the 3.450% Notes in November 2022. Changes in the fair value of the cross currency swaps due to spot foreign exchange rates are recorded as cumulative translation adjustment within AOCI and will remain in AOCI until either the sale or substantially complete liquidation of the hedged subsidiaries
Derivatives Designated as Hedging Instruments | Variable Interest Rate
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Number of cross currency swaps executed | CrossCurrencySwap		2			2
Notional amount		$ 300,000,000			€ 277,730,000
Derivative instruments maturity date		2023-02
Derivatives Designated as Hedging Instruments | Foreign Borrower's Term Loan | Variable Interest Rate
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Notional amount		$ 100,000,000			€ 92,520,000
Derivative instruments maturity date		2023-02
Derivatives Designated as Hedging Instruments | 3.450% Senior Notes November 2022
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Debt instrument, interest rate, stated percentage		3.45%			3.45%
Derivatives Designated as Hedging Instruments | 3.450% Senior Notes November 2022 | Interest Expense
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Discontinued hedge accounting adjustment to senior Notes | $		$ 1,500,000
Derivatives Not Designated as Hedges
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Number of foreign currency forward contract held | ForwardContract			1	1
Derivatives Not Designated as Hedges | Forward Contracts Held to Purchase Foreign Currencies
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Notional amount | $			$ 84,700,000	$ 63,200,000

Derivatives and Hedging - Sched

Derivatives and Hedging - Schedule of Derivatives Instruments for Gains or Losses Initially Recognized in AOCI in Consolidated Balance Sheet (Detail) - Derivatives Designated as Hedging Instruments - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Pretax gain/(loss) recognized in AOCI	$ (31,087)	$ 1,397
Pretax gain/(loss) reclassified from AOCI into income	(8,030)
Interest Rate Swap | Interest expense | Cash Flow
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Pretax gain/(loss) recognized in AOCI	(598)
Pretax gain/(loss) reclassified from AOCI into income, cash flow	$ (766)
Income Statement Location	Interest expense
Cross Currency Swap | Interest income | Cash Flow
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Pretax gain/(loss) recognized in AOCI	$ (7,356)
Pretax gain/(loss) reclassified from AOCI into income, cash flow	$ 191
Income Statement Location	Interest income
Cross Currency Swap | Foreign exchange (loss) | Cash Flow
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Pretax gain/(loss) reclassified from AOCI into income, cash flow	$ (7,455)
Income Statement Location	Foreign exchange (loss)
Cross Currency Swap | Gain or (loss) on sale of subsidiary | Net Investment
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Pretax gain/(loss) recognized in AOCI	$ (23,133)	$ 1,397
Income Statement Location	Gain or (loss) on sale of subsidiary

Derivatives and Hedging - Sch_2

Derivatives and Hedging - Schedule of Fair Values of Qualifying and Non-Qualifying Instruments Used in Hedging Transactions (Detail) - USD ($) $ in Thousands	Aug. 31, 2020	May 31, 2020	May 31, 2019
Derivatives Designated as Hedging Instruments | Cross Currency Swap | Net Investment | Other Current Assets
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Fair value of derivatives assets	$ 5,652	$ 5,352
Derivatives Designated as Hedging Instruments | Cross Currency Swap | Net Investment | Other Assets (Long-Term)
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Fair value of derivatives assets		12,409
Derivatives Designated as Hedging Instruments | Cross Currency Swap | Net Investment | Other Accrued Liabilities
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Fair value of derivatives liabilities	701	294
Derivatives Designated as Hedging Instruments | Cross Currency Swap | Net Investment | Other Long-Term Liabilities
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Fair value of derivatives liabilities	29,537	18,204
Derivatives Designated as Hedging Instruments | Cross Currency Swap | Cash Flow | Other Current Assets
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Fair value of derivatives assets	632	750
Derivatives Designated as Hedging Instruments | Cross Currency Swap | Cash Flow | Other Long-Term Liabilities
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Fair value of derivatives liabilities	11,320	3,608
Derivatives Designated as Hedging Instruments | Interest Rate Swap | Cash Flow | Other Accrued Liabilities
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Fair value of derivatives liabilities	3,238	2,981
Derivatives Designated as Hedging Instruments | Interest Rate Swap | Cash Flow | Other Long-Term Liabilities
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Fair value of derivatives liabilities	4,761	$ 5,187
Derivatives Not Designated as Hedging Instruments | Foreign Currency Exchange (Cash Flow) | Other Accrued Liabilities
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Fair value of derivatives liabilities	$ 28		$ 53

Investment (Income), Net (Detai

Investment (Income), Net (Detail) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Other Income And Expenses [Abstract]
Interest (income)	$ (667)	$ (1,348)
Net (gain) on marketable securities	(11,784)	(3,540)
Dividend (income)	(312)	(497)
Investment (income), net	$ (12,763)	$ (5,385)

Net (Gain) on Marketable Securi

Net (Gain) on Marketable Securities (Detail) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
(In thousands)
Unrealized (gains) on marketable equity securities	$ (13,956)	$ (3,476)
Realized (gains) losses on marketable equity securities	2,169	(68)
Realized losses on available-for-sale debt securities	3	4
Net (gain) on marketable securities	$ (11,784)	$ (3,540)

Other Expense, Net (Detail)

Other Expense, Net (Detail) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Other Income And Expenses [Abstract]
Royalty (income) expense, net	$ (31)	$ 266
(Income) expense related to unconsolidated equity affiliates	(187)	91
Pension non-service costs	3,336	1,428
Other expense, net	$ 3,118	$ 1,785

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Income Tax Disclosure [Abstract]
Effective income tax expense rate	25.10%	25.50%
Corporate income tax rate	21.00%
Deferred income tax liability	$ 12,000,000
Unremitted foreign earnings	433,700,000
Provision for deferred income taxes	$ 0

Major Classes of Inventories, N

Major Classes of Inventories, Net of Reserves (Detail) - USD ($) $ in Thousands	Aug. 31, 2020	May 31, 2020
Inventory Disclosure [Abstract]
Raw material and supplies	$ 310,346	$ 282,579
Finished goods	473,126	527,869
Total Inventory, Net of Reserves	$ 783,472	$ 810,448

Stock Repurchase Program - Addi

Stock Repurchase Program - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019	May 31, 2021
Stock Repurchase Programs [Line Items]
Authorization of stock repurchase program	Jan. 8, 2008
Shares repurchased	0	1,655,616
Shares repurchased, value		$ 100,000
Repurchase of common stock price per shares		$ 60.40
Scenario Forecast
Stock Repurchase Programs [Line Items]
Capital to be returned to stockholders through share repurchases			$ 1,000,000
Stock repurchase program, remaining authorized repurchase, value			$ 600,000

Reconciliation of Numerator and

Reconciliation of Numerator and Denominator of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Aug. 31, 2020	Aug. 31, 2019
Numerator for earnings per share:
Net income attributable to RPM International Inc. stockholders		$ 180,595	$ 106,188
Less: Allocation of earnings and dividends to participating securities		(1,552)	(623)
Net income available to common shareholders - basic		179,043	105,565
Add: Undistributed earnings reallocated to unvested shareholders		4	2
Net income available to common shareholders - diluted		$ 179,047	$ 105,567
Denominator for basic and diluted earnings per share:
Basic weighted average common shares		128,418	128,882
Average diluted options and awards		365	622
Total shares for diluted earnings per share	[1]	128,783	129,504
Earnings Per Share of Common Stock Attributable to RPM International Inc. Stockholders:
Basic Earnings Per Share of Common Stock		$ 1.39	$ 0.82
Method used to calculate basic earnings per share		Two-class	Two-class
Diluted Earnings Per Share of Common Stock		$ 1.39	$ 0.82
Method used to calculate diluted earnings per share		Two-class	Two-class
[1]	Restricted shares totaling 225,500 and 178,000 for the three months ended August 31, 2020 and 2019, respectively, were excluded from the calculation of diluted earnings per share as their effect would have been anti-dilutive.   In addition, stock appreciation rights (“SARs”) totaling 360,000 and 790,000 for the three months ended August 31, 2020 and 2019, respectively, were excluded from the calculation of diluted earnings per share as their effect would have been anti-dilutive.

Reconciliation of Numerator a_2

Reconciliation of Numerator and Denominator of Basic and Diluted Earnings Per Share (Parenthetical) (Detail) - shares shares in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Restricted shares
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Shares excluded from the calculation of diluted earnings per share	225,500	178,000
Stock appreciation rights (SARs)
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Shares excluded from the calculation of diluted earnings per share	360,000	790,000

Retirement-Related Benefit Plan

Retirement-Related Benefit Plans' Impact on Income Before Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Pension Benefits | U.S. Plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 11,130	$ 9,856
Interest cost	3,806	5,104
Expected return on plan assets	(8,279)	(8,573)
Prior service cost (credit)	2	2
Net actuarial (gains) losses recognized	7,501	4,629
Net Periodic Benefit (Credit) Cost	14,160	11,018
Pension Benefits | Non-U.S. Plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	1,406	1,391
Interest cost	1,122	1,193
Expected return on plan assets	(1,607)	(1,834)
Prior service cost (credit)	(35)	(9)
Net actuarial (gains) losses recognized	526	523
Net Periodic Benefit (Credit) Cost	1,412	1,264
Postretirement Benefits | U.S. Plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	19	37
Prior service cost (credit)	(42)	(55)
Net actuarial (gains) losses recognized	10	(16)
Net Periodic Benefit (Credit) Cost	(13)	(34)
Postretirement Benefits | Non-U.S. Plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	431	429
Interest cost	283	282
Net actuarial (gains) losses recognized	130	158
Net Periodic Benefit (Credit) Cost	$ 844	$ 869

Pension Plans - Additional Info

Pension Plans - Additional Information (Detail) - Pension Benefits	Aug. 31, 2020USD ($)
U.S. Plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution to retirement plans the current fiscal year	$ 8,000
Non-U.S. Plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution to retirement plans the current fiscal year	$ 6,700,000

Changes in Accrued Warranty Bal

Changes in Accrued Warranty Balances (Detail) - USD ($) $ in Thousands		3 Months Ended
		Aug. 31, 2020	Aug. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Beginning Balance		$ 11,106	$ 10,414
Deductions	[1]	(5,930)	(5,513)
Provision charged to expense		7,660	5,168
Ending Balance		$ 12,836	$ 10,069
[1]	Primarily claims paid during the year.

Contingencies and Accrued Los_3

Contingencies and Accrued Losses - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019	Feb. 28, 2013	Nov. 30, 2012	Aug. 31, 2012
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Increase (decrease) in net income due to restatement effect	$ 180,595	$ 106,188
Restatements
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Increase (decrease) in net income due to restatement effect			$ 18,000	$ (10,800)	$ (7,200)

Revenue - Additional Informatio

Revenue - Additional Information (Detail) $ in Thousands	3 Months Ended
	Aug. 31, 2020USD ($)Segment	Aug. 31, 2019USD ($)	May 31, 2020USD ($)
Disaggregation Of Revenue [Line Items]
Number of reportable segments | Segment	4
Revenue performance obligation description of payment terms	Payment terms and conditions vary by contract type, although our customers’ payment terms generally include a requirement to pay within 30 to 60 days of fulfilling our performance obligations.
Revenue, Practical Expedient, Financing Component [true false]	false
Net contract assets (liabilities)	$ 10,726
Net Sales	1,606,670	$ 1,472,764
Long-term deferred revenue	66,400		$ 66,000
General Contracting And Roofing Services
Disaggregation Of Revenue [Line Items]
Net Sales	$ 25,100

Summary of Trade Accounts Recei

Summary of Trade Accounts Receivable Net of Allowances and Net Contract Assets (Liabilities) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	May 31, 2020
Disaggregation Of Revenue [Line Items]
Trade accounts receivable, less allowances	$ 1,159,130	$ 1,137,957
Contract assets	36,292	25,249
Contract liabilities - short-term	(25,605)	(25,288)
Net Contract Assets (Liabilities)	10,687	$ (39)
Change in Contract with Customer, Asset and Liability [Abstract]
Change in trade accounts receivable, less allowance	21,173
Change in contract assets	11,043
Change in Net Contract Assets (Liabilities)	$ 10,726
Percentage of change in trade accounts receivable, less allowance	1.90%
Percentage of change in contract assets	43.70%
Short-term
Change in Contract with Customer, Asset and Liability [Abstract]
Change in contract liabilities	$ (317)
Percentage of change in contract liabilities	1.30%

Summarizes the Activity for the

Summarizes the Activity for the Allowance for Credit Losses (Detail) $ in Thousands	3 Months Ended
	Aug. 31, 2020USD ($)
Accounts receivable, allowance for credit loss [Roll Forward]
Beginning balance	$ 55,847
Bad debt expense	1,274
Uncollectible accounts written off, net of recoveries	(2,854)
Translation adjustments	1,660
Ending balance	$ 55,927

Segment Information - Additiona

Segment Information - Additional Information (Detail)	3 Months Ended
	Aug. 31, 2020Segment
Segment Reporting [Abstract]
Number of operating segments	4

Results of Reportable Segments

Results of Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019	May 31, 2020
Segment Reporting Information [Line Items]
Net Sales	$ 1,606,670	$ 1,472,764
Income (Loss) Before Income Taxes	241,369	142,849
Identifiable Assets	5,694,419		$ 5,630,954
Domestic
Segment Reporting Information [Line Items]
Net Sales	1,127,104	1,002,525
Foreign
Segment Reporting Information [Line Items]
Net Sales	479,566	470,239
Foreign | Canada
Segment Reporting Information [Line Items]
Net Sales	123,582	106,149
Foreign | Europe
Segment Reporting Information [Line Items]
Net Sales	256,960	250,609
Foreign | Latin America
Segment Reporting Information [Line Items]
Net Sales	48,304	58,035
Foreign | Asia Pacific
Segment Reporting Information [Line Items]
Net Sales	35,345	38,859
Foreign | Other Foreign
Segment Reporting Information [Line Items]
Net Sales	15,375	16,587
Operating Segments | CPG Segment
Segment Reporting Information [Line Items]
Net Sales	547,690	536,105
Income (Loss) Before Income Taxes	98,349	82,680
Identifiable Assets	1,664,612		1,622,632
Operating Segments | CPG Segment | Domestic
Segment Reporting Information [Line Items]
Net Sales	327,961	307,659
Operating Segments | CPG Segment | Foreign
Segment Reporting Information [Line Items]
Net Sales	219,729	228,446
Operating Segments | CPG Segment | Foreign | Canada
Segment Reporting Information [Line Items]
Net Sales	55,642	50,443
Operating Segments | CPG Segment | Foreign | Europe
Segment Reporting Information [Line Items]
Net Sales	108,720	114,302
Operating Segments | CPG Segment | Foreign | Latin America
Segment Reporting Information [Line Items]
Net Sales	34,853	42,847
Operating Segments | CPG Segment | Foreign | Asia Pacific
Segment Reporting Information [Line Items]
Net Sales	17,639	20,396
Operating Segments | CPG Segment | Foreign | Other Foreign
Segment Reporting Information [Line Items]
Net Sales	2,875	458
Operating Segments | PCG Segment
Segment Reporting Information [Line Items]
Net Sales	259,788	297,241
Income (Loss) Before Income Taxes	28,514	28,057
Identifiable Assets	949,224		925,569
Operating Segments | PCG Segment | Domestic
Segment Reporting Information [Line Items]
Net Sales	156,062	181,906
Operating Segments | PCG Segment | Foreign
Segment Reporting Information [Line Items]
Net Sales	103,726	115,335
Operating Segments | PCG Segment | Foreign | Canada
Segment Reporting Information [Line Items]
Net Sales	17,112	20,973
Operating Segments | PCG Segment | Foreign | Europe
Segment Reporting Information [Line Items]
Net Sales	63,634	64,459
Operating Segments | PCG Segment | Foreign | Latin America
Segment Reporting Information [Line Items]
Net Sales	5,594	8,441
Operating Segments | PCG Segment | Foreign | Asia Pacific
Segment Reporting Information [Line Items]
Net Sales	4,886	7,424
Operating Segments | PCG Segment | Foreign | Other Foreign
Segment Reporting Information [Line Items]
Net Sales	12,500	14,038
Operating Segments | Consumer Segment
Segment Reporting Information [Line Items]
Net Sales	641,168	479,330
Income (Loss) Before Income Taxes	132,722	59,158
Identifiable Assets	2,104,448		2,067,017
Operating Segments | Consumer Segment | Domestic
Segment Reporting Information [Line Items]
Net Sales	509,584	381,229
Operating Segments | Consumer Segment | Foreign
Segment Reporting Information [Line Items]
Net Sales	131,584	98,101
Operating Segments | Consumer Segment | Foreign | Canada
Segment Reporting Information [Line Items]
Net Sales	48,908	32,505
Operating Segments | Consumer Segment | Foreign | Europe
Segment Reporting Information [Line Items]
Net Sales	67,610	51,009
Operating Segments | Consumer Segment | Foreign | Latin America
Segment Reporting Information [Line Items]
Net Sales	7,392	6,315
Operating Segments | Consumer Segment | Foreign | Asia Pacific
Segment Reporting Information [Line Items]
Net Sales	7,674	6,181
Operating Segments | Consumer Segment | Foreign | Other Foreign
Segment Reporting Information [Line Items]
Net Sales		2,091
Operating Segments | SPG Segment
Segment Reporting Information [Line Items]
Net Sales	158,024	160,088
Income (Loss) Before Income Taxes	20,449	23,327
Identifiable Assets	734,132		728,449
Operating Segments | SPG Segment | Domestic
Segment Reporting Information [Line Items]
Net Sales	133,497	131,731
Operating Segments | SPG Segment | Foreign
Segment Reporting Information [Line Items]
Net Sales	24,527	28,357
Operating Segments | SPG Segment | Foreign | Canada
Segment Reporting Information [Line Items]
Net Sales	1,920	2,228
Operating Segments | SPG Segment | Foreign | Europe
Segment Reporting Information [Line Items]
Net Sales	16,996	20,839
Operating Segments | SPG Segment | Foreign | Latin America
Segment Reporting Information [Line Items]
Net Sales	465	432
Operating Segments | SPG Segment | Foreign | Asia Pacific
Segment Reporting Information [Line Items]
Net Sales	5,146	4,858
Corporate/Other
Segment Reporting Information [Line Items]
Income (Loss) Before Income Taxes	(38,665)	$ (50,373)
Identifiable Assets	$ 242,003		$ 287,287

Changes in Carrying Amount of G

Changes in Carrying Amount of Goodwill, by Reportable Segment (Detail) $ in Thousands	3 Months Ended
	Aug. 31, 2020USD ($)
Goodwill [Line Items]
Balance as of May 31, 2020	$ 1,250,066
Translation adjustments & other	28,468
Balance as of August 31, 2020	1,278,534
CPG Segment
Goodwill [Line Items]
Balance as of May 31, 2020	405,354
Translation adjustments & other	21,396
Balance as of August 31, 2020	426,750
PCG Segment
Goodwill [Line Items]
Balance as of May 31, 2020	185,404
Translation adjustments & other	265
Balance as of August 31, 2020	185,669
Consumer Segment
Goodwill [Line Items]
Balance as of May 31, 2020	496,218
Translation adjustments & other	4,075
Balance as of August 31, 2020	500,293
SPG Segment
Goodwill [Line Items]
Balance as of May 31, 2020	163,090
Translation adjustments & other	2,732
Balance as of August 31, 2020	$ 165,822

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 01, 2020	Aug. 31, 2020	Aug. 31, 2019
Subsequent Event [Line Items]
Annual net sales		$ 1,606,670	$ 1,472,764
Operating Segments | Consumer Segment
Subsequent Event [Line Items]
Annual net sales		$ 641,168	$ 479,330
Subsequent Event | Operating Segments | Consumer Segment | Ali Industries, LLC
Subsequent Event [Line Items]
Annual net sales	$ 75,000