GCP Applied (GCP) 10-Q 7 May 20 2020 Q1 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended
	Mar. 31, 2020	May 01, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	1-137533
Entity Registrant Name	GCP Applied Technologies Inc.
Entity Central Index Key	0001644440
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	47-3936076
Entity Address, Address Line One	62 Whittemore Avenue
Entity Address, City or Town	Cambridge
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02140-1623
City Area Code	617
Local Phone Number	876-1400
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
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	GCP
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		72,921,594

Consolidated Statements of Oper

Consolidated Statements of Operations (unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Net sales		$ 216.7	$ 226.1
Cost of goods sold		134.8	143.9
Gross profit		81.9	82.2
Selling, general and administrative expenses		68.1	69
Research and development expenses		4.9	4.7
Interest expense and related financing costs		5.7	5.9
Repositioning expenses		2.7	5.4
Restructuring expenses and asset impairments		3.1	0.6
Other income, net		(2.2)	(1.8)
Total costs and expenses		82.3	83.8
Loss from continuing operations before income taxes		(0.4)	(1.6)
Benefit from income taxes		1.9	16.4
Income from continuing operations		1.5	14.8
(Loss) income from discontinued operations, net of income taxes		(0.3)	6.8
Net income		1.2	21.6
Less: Net income attributable to noncontrolling interests		(0.1)	(0.2)
Net income attributable to GCP shareholders		1.1	21.4
Amounts Attributable to GCP Shareholders:
Income from continuing operations attributable to GCP shareholders		1.4	14.6
(Loss) income from discontinued operations, net of income taxes		(0.3)	6.8
Net income attributable to GCP shareholders		$ 1.1	$ 21.4
Basic earnings (loss) per share:
Income from continuing operations attributable to GCP shareholders (in usd per share)		$ 0.02	$ 0.20
(Loss) income from discontinued operations, net of income taxes (in usd per share)		0	0.09
Net income attributable to GCP shareholders (in usd per share)	[1]	$ 0.02	$ 0.30
Weighted average number of basic shares (in shares)		72.9	72.3
Diluted earnings (loss) per share:
Income from continuing operations attributable to GCP shareholders (in dollars per share)	[2]	$ 0.02	$ 0.20
(Loss) income from discontinued operations, net of income taxes (in dollars per share)	[2]	0	0.09
Net income attributable to GCP shareholders (in dollars per share)	[1],[2]	$ 0.02	$ 0.29
Weighted average number of diluted shares (in shares)	[2]	73	72.8
[1]	Amounts may not sum due to rounding.
[2]	Dilutive effect is only applicable to the periods during which GCP generated net income from continuing operations.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive (Loss) Income (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 1.2	$ 21.6
Other comprehensive (loss) income:
Defined benefit pension and other postretirement plans, net of income taxes	0.1	0
Currency translation adjustments, net of income taxes	(33.8)	3.3
Gain (loss) from hedging activities, net of income taxes	0.2	(0.1)
Total other comprehensive (loss) income	(33.5)	3.2
Comprehensive (loss) income	(32.3)	24.8
Less: Comprehensive income attributable to noncontrolling interests	(0.1)	(0.2)
Comprehensive (loss) income attributable to GCP shareholders	$ (32.4)	$ 24.6

Consolidated Balance Sheets (un

Consolidated Balance Sheets (unaudited) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents	$ 320.2	$ 325
Trade accounts receivable, net of allowance for credit losses of $7.4 million and $7.5 million, respectively	160.5	183.7
Inventories, net	103.7	95.9
Other current assets	40.9	43.7
Total Current Assets	625.3	648.3
Properties and equipment, net	241.2	245.3
Operating lease right-of-use assets	33	29.3
Goodwill	199.3	208.9
Technology and other intangible assets, net	75	80.7
Deferred income taxes	16.5	26.1
Overfunded defined benefit pension plans	23.6	25
Other assets	38.9	38
Non-current assets held for sale	0	0.5
Total Assets	1,252.8	1,302.1
Current Liabilities
Debt payable within one year	2.9	2.7
Operating lease obligations payable within one year	8.1	8.1
Accounts payable	92.5	88.4
Other current liabilities	99.9	113.6
Total Current Liabilities	203.4	212.8
Debt payable after one year	348.6	346.5
Income taxes payable	29	41.4
Deferred income taxes	11.9	13.1
Operating lease obligations	24.8	21.6
Unrecognized tax benefits	42.2	42.2
Underfunded and unfunded defined benefit pension plans	67.9	67.5
Other liabilities	15.6	15.9
Total Liabilities	743.4	761
Commitments and Contingencies - Note 11
Stockholders' Equity
Series A Junior Participating Preferred Stock, par value $0.01; 10,000,000 shares authorized, no shares issued or outstanding (Note 12)	0	0
Common stock issued, par value $0.01; 300,000,000 shares authorized; outstanding: 72,898,291 and 72,850,268, respectively	0.7	0.7
Paid-in capital	54.3	53.4
Accumulated earnings	611.3	610.2
Accumulated other comprehensive loss	(150.5)	(117)
Treasury stock	(8.9)	(8.6)
Total GCP's Shareholders' Equity	506.9	538.7
Noncontrolling interests	2.5	2.4
Total Stockholders' Equity	509.4	541.1
Total Liabilities and Stockholders' Equity	$ 1,252.8	$ 1,302.1

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Trade accounts receivable, allowance	$ 7.4	$ 7.5
Preferred stock, par value (in usd per share)	$ 0.01
Preferred stock, authorized (in shares)	50,000,000
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	300,000,000	300,000,000
Common stock, outstanding (in shares)	72,898,291	72,850,268
Series A
Preferred stock, par value (in usd per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	10,000,000	10,000,000
Preferred stock, outstanding (in shares)	0	0

Consolidated Statements of Equi

Consolidated Statements of Equity (unaudited) - USD ($) $ in Millions		Total	Common Stock	Treasury Stock		Additional Paid-in Capital	Accumulated Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2018			72,400,000	200,000
Beginning balance at Dec. 31, 2018		$ 481.4	$ 0.7	$ (4.8)		$ 39.6	$ 563.9	$ (120)	$ 2
Increase (Decrease) in Stockholders' Equity
Net income		21.6					21.4		0.2
Issuance of common stock in connection with stock plans (in shares)	[1]		300,000
Issuance of common stock in connection with stock plans	[1]	0
Share-based compensation		1.7				1.7
Exercise of stock options (in shares)			200,000
Exercise of stock options		$ 3.3				3.3
Share repurchases (in shares)		125,400		100,000	[2]
Share repurchases	[2]	$ (3.2)		$ (3.2)
Other comprehensive income (loss)		3.2						3.2
Ending balance (in shares) at Mar. 31, 2019			72,900,000	300,000
Ending balance at Mar. 31, 2019		508	$ 0.7	$ (8)		44.6	585.3	(116.8)	2.2
Beginning balance (in shares) at Dec. 31, 2019			73,200,000	300,000
Beginning balance at Dec. 31, 2019		541.1	$ 0.7	$ (8.6)		53.4	610.2	(117)	2.4
Increase (Decrease) in Stockholders' Equity
Net income		1.2					1.1		0.1
Issuance of common stock in connection with stock plans (in shares)	[1]		100,000
Issuance of common stock in connection with stock plans	[1]	0
Share-based compensation		$ 0.5				0.5
Exercise of stock options (in shares)		20,000	0
Exercise of stock options		$ 0.4				0.4
Share repurchases (in shares)		15,800		100,000	[2]
Share repurchases	[2]	$ (0.3)		$ (0.3)
Other comprehensive income (loss)		(33.5)						(33.5)
Ending balance (in shares) at Mar. 31, 2020			73,300,000	400,000
Ending balance at Mar. 31, 2020		$ 509.4	$ 0.7	$ (8.9)		$ 54.3	$ 611.3	$ (150.5)	$ 2.5
[1]	The par value of shares issued is not included in the table due to rounding.
[2]	During the three months ended March 31, 2020 and 2019, GCP withheld and retained approximately 15,800 shares and 125,400 shares, respectively, of Company common stock in a non-cash transaction with a cost of $0.3 million and $3.2 million, respectively, in connection with fulfilling statutory tax withholding requirements for employees under the provisions of the Company's equity compensation programs. During the three months ended March 31, 2020 and 2019, cash payments for such tax withholding obligations were $0.3 million and $3.2 million, respectively.

Consolidated Statements of Eq_2

Consolidated Statements of Equity (unaudited) (Parenthetical) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Share repurchases (in shares)		15,800	125,400
Share repurchases	[1]	$ 0.3	$ 3.2
Cash payments for tax withholding obligations		$ 0.3	$ 3.2
[1]	During the three months ended March 31, 2020 and 2019, GCP withheld and retained approximately 15,800 shares and 125,400 shares, respectively, of Company common stock in a non-cash transaction with a cost of $0.3 million and $3.2 million, respectively, in connection with fulfilling statutory tax withholding requirements for employees under the provisions of the Company's equity compensation programs. During the three months ended March 31, 2020 and 2019, cash payments for such tax withholding obligations were $0.3 million and $3.2 million, respectively.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
OPERATING ACTIVITIES
Net income	$ 1.2	$ 21.6
Less: (Loss) income from discontinued operations	(0.3)	6.8
Income from continuing operations	1.5	14.8
Reconciliation to net cash provided by (used in) operating activities:
Depreciation and amortization	11	10.1
Amortization of debt discount and financing costs	0.4	0.4
Stock-based compensation expense	0.8	1.9
Unrealized loss on foreign currency	0.5	0.5
Deferred income taxes	(5.2)	(17.3)
Gain on disposal of property and equipment	(0.1)	(0.1)
Changes in assets and liabilities, excluding effect of currency translation:
Trade accounts receivable	17.4	25.2
Inventories	(11.4)	(14.9)
Accounts payable	6.6	(5)
Pension assets and liabilities, net	1	1.1
Other assets and liabilities, net	(8.5)	(21.8)
Net cash provided by (used in) operating activities from continuing operations	14	(5.1)
Net cash used in operating activities from discontinued operations	(0.9)	(9.6)
Net cash provided by (used in) operating activities	13.1	(14.7)
INVESTING ACTIVITIES
Capital expenditures	(8.9)	(13)
Other investing activities	0.4	0.4
Net cash used in investing activities from continuing operations	(8.5)	(12.6)
Net cash used in investing activities from discontinued operations	0	(0.4)
Net cash used in investing activities	(8.5)	(13)
FINANCING ACTIVITIES
Repayments under credit arrangements	0	(0.1)
Payments on finance lease obligations	(0.2)	(0.2)
Payments of tax withholding obligations related to employee equity awards	(0.3)	(3.2)
Proceeds from exercise of stock options	0.4	3.3
Net cash used in financing activities	(0.1)	(0.2)
Effect of currency exchange rate changes on cash and cash equivalents	(9.3)	0.4
Decrease in cash and cash equivalents	(4.8)	(27.5)
Cash and cash equivalents, beginning of period	325	326.1
Cash and cash equivalents, end of period	320.2	298.6
Supplemental disclosure of non-cash investing activities:
Property and equipment purchases unpaid and included in accounts payable	$ 5.5	$ 9.1

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting and Financial Reporting Policies	3 Months Ended
	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Summary of Significant Accounting and Financial Reporting Policies	Basis of Presentation and Summary of Significant Accounting and Financial Reporting Policies GCP is engaged in the production and sale of specialty construction chemicals and specialty building materials through two operating segments. Specialty Construction Chemicals ("SCC") manufactures and markets concrete admixtures and cement additives and supplies in-transit monitoring systems for concrete producers. Specialty Building Materials ("SBM") manufactures and markets sheet and liquid membrane systems that protect structures from water, air and vapor penetration, fireproofing and other products designed to protect the building envelope. On July 3, 2017 (the "Closing Date"), GCP completed the sale of its Darex Packaging Technologies ("Darex") business to Henkel AG & Co. KGaA (“Henkel”) for $1.06 billion in cash. As discussed further below under "Discontinued Operations," the results of operations for Darex have been excluded from GCP's continuing operations and segment results for all periods presented. Basis of Presentation The accompanying unaudited Consolidated Financial Statements are presented on a consolidated basis and include all of the accounts and operations of GCP and its majority-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. The financial statements reflect the financial position, results of operations and cash flows of GCP in accordance with generally accepted accounting principles in the United States ("GAAP") and with the instructions to Form 10-Q and Article 10 of SEC Regulation S-X for interim financial information. The interim financial statements presented herein are unaudited and should be read in conjunction with the audited Consolidated Financial Statements and notes thereto contained in GCP's Annual Report on Form 10-K filed with the SEC for the year ended December 31, 2019 (the "2019 Annual Report on Form 10-K"). The Consolidated Balance Sheet as of December 31, 2019 was derived from the audited annual consolidated financial statements as of the period then ended. Certain information and footnote disclosures typically included in GCP's annual consolidated financial statements have been condensed or omitted. The unaudited financial statements reflect all adjustments that, in the opinion of management, are necessary for a fair statement of the results of the interim periods presented. All such adjustments are of a normal recurring nature except for the impacts of adopting new accounting standards discussed below. The results of operations for the three months ended March 31, 2020 are not necessarily indicative of the results of operations for the year ending December 31, 2020. Discontinued Operations On July 3, 2017, the Company completed the sale of Darex to Henkel. The agreement with Henkel governing the Disposition (the “Amended Purchase Agreement”) provides for a series of delayed closings in certain non-U.S. jurisdictions. In conjunction with this transaction and applicable GAAP, the assets and liabilities related to Darex in the applicable delayed close countries have been reclassified and reflected as held for sale in the accompanying unaudited Consolidated Balance Sheets as of December 31, 2019, as discussed further in Note 19, "Discontinued Operations." Additionally, Darex results of operations and cash flows have been reclassified and reflected as "discontinued operations" in the accompanying unaudited Consolidated Statements of Operations and Consolidated Statements of Cash Flows for all periods presented. Unless otherwise noted, the information throughout the Notes to the accompanying unaudited Consolidated Financial Statements pertains only to the continuing operations of GCP. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the unaudited Consolidated Financial Statements, and the reported amounts of revenues and expenses for the periods presented. The Company assesses the estimates on an ongoing basis and records changes in estimates in the period they occur and become known. GCP's accounting measurements that are most affected by management's estimates of future events are disclosed in its 2019 Annual Report on Form 10-K. Actual results could differ from those estimates. On March 11, 2020, the World Health Organization declared the outbreak of the novel strain of coronavirus ("COVID-19") a global pandemic and recommended a number of restrictive measures to contain the spread. Many governments in the regions where GCP generates the majority of its revenue have adopted such policies, including social distancing and restrictions on construction activities deemed non-essential. GCP is closely monitoring the impact of the COVID-19 pandemic and working to manage the effects on its business globally as the situation continues to evolve. It is difficult to estimate with reasonable certainty at this time the duration and extent of the impact of the pandemic on the Company's business, financial position and results of operations. GCP has made certain estimates within its financial statements related to the impact of COVID-19, including allowance for credit losses related to the estimated amount of receivables not expected to be collected, future expected cash flows related to impairment assessments of goodwill and long-lived assets, incentive compensation accruals, contingent liabilities, and sales allowances related to volume rebates recognized based on anticipated sales volume. There may be changes to the Company's estimates in future periods due to uncertainty associated with the impact of the COVID-19 pandemic, the extent of which will depend largely on future developments, including new information which may emerge concerning the severity of the outbreak, as well as additional and unanticipated actions by government authorities to contain the outbreak or address its impact, among other things. Income Tax As a global enterprise, GCP is subject to a complex array of tax regulations and needs to make assessments of applicable tax law and judgments in estimating its ultimate income tax liability. Income tax expense and income tax balances represent GCP’s federal, state and foreign income taxes as an independent company. GCP files a U.S. consolidated income tax return, along with foreign and state corporate income tax filings, as required. Please refer to Note 8, "Income Taxes," for details regarding estimates used in accounting for income tax matters including unrecognized tax benefits. Foreign Currency Transactions and Translation Certain transactions of the Company and its subsidiaries are denominated in currencies other than their functional currency. Foreign currency exchange gains (losses) generated from the settlement and remeasurement of these transactions are recognized in earnings and presented within “Other income, net” in the Company’s accompanying unaudited Consolidated Statements of Operations. Net foreign currency transaction and remeasurement gains (losses) reflected in “Other income, net” were immaterial for the three months ended March 31, 2020. Foreign currency transaction and remeasurement losses were $0.3 million for the three months ended March 31, 2019. GCP accounts for its operations in Argentina as a highly inflationary economy effective July 1, 2018. The functional currency of the Company's subsidiary operating in Argentina is the U.S. dollar, and all remeasurement adjustments after the effective date are reflected in GCP's results of operations in the accompanying unaudited Consolidated Statements of Operations. The losses related to the remeasurement of the monetary net assets are included in "Other income, net" in the accompanying unaudited Consolidated Statements of Operations and were $0.2 million and $0.4 million, respectively, during the three months ended March 31, 2020 and 2019. The Argentina subsidiary's net sales were not material to the Company's consolidated net sales during the three months ended March 31, 2020 and 2019, and its monetary net assets denominated in local currency were not material to GCP's consolidated total assets as of March 31, 2020 and December 31, 2019. Reclassifications Certain amounts in prior period financial statements have been reclassified to conform to the current period presentation. Such reclassifications have not materially affected previously reported amounts. Recently Adopted Accounting Standards Credit Losses In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update ("ASU") 2016-13, Financial Instruments- Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which applies to most financial assets measured at amortized cost, as well as certain other instruments, including trade receivables, other receivables and other financial assets. Topic 326 replaces the incurred credit loss methodology with the expected credit loss model which requires recognition of an allowance against the assets’ amortized cost to reflect the amount expected to be collected. Expected credit losses are estimated over the contractual life of financial assets and recognized at inception. GCP has adopted Topic 326 effective January 1, 2020 using the modified retrospective approach. The adoption did not have a material impact on its financial position as of March 31, 2020 and results of operations and cash flows for the three months ended March 31, 2020. GCP did not recognize any cumulative effect adjustments to the retained earnings as of January 1, 2020 as a result of the adoption. The adoption of Topic 326 did not result in any significant modifications to the Company's policies related to recognizing allowance for trade receivables not expected to be collected which are disclosed in Note 1, "Basis of Presentation and Summary of Significant Accounting and Financial Reporting Policies," to the Company’s Consolidated Financial Statements included in the 2019 Annual Report on Form 10-K. Please refer to Note 3, "Accounts Receivable, Allowance for Credit Losses" for further information on the Company's policies and methodologies resulting from the adoption. Goodwill In January 2017, the FASB issued ASU 2017-04, Intangibles—Goodwill and Other (Topic 350) . The amendments in this update eliminate the requirement to calculate the implied fair value of goodwill (Step 2) when measuring a goodwill impairment loss which is based on the excess of a reporting unit’s carrying amount over its fair value. The standard is effective for the Company for its annual or any interim goodwill impairment tests to be performed beginning on or after January 1, 2020. GCP adopted the standard effective January 1, 2020. The adoption did not have a material impact on its financial position as of March 31, 2020 and results of operations and cash flows for the three months ended March 31, 2020. Other During the three months ended March 31, 2020, except as discussed above, there were no material changes to the Company's significant accounting and financial reporting policies from those reflected in the Annual Report on Form 10-K for the year ended December 31, 2019. For further information with regard to the Company’s Significant Accounting Policies, please refer to Note 1, "Basis of Presentation and Summary of Significant Accounting and Financial Reporting Policies," to the Company’s Consolidated Financial Statements included in the 2019 Annual Report on Form 10-K.

Revenue from Lessor Arrangement

Revenue from Lessor Arrangements and Contracts with Customers	3 Months Ended
	Mar. 31, 2020
Revenues [Abstract]
Revenue from Lessor Arrangements and Contracts with Customers	Revenue from Lessor Arrangements and Contracts with Customers The majority of the Company’s revenue is generated from short-term arrangements associated with the production and sale of concrete admixtures and cement additives within its SCC operating segment, as well as sheet and liquid membrane systems and other specialty products designed to protect the building envelope within its SBM operating segment. For such arrangements, the transfer of control takes place at a point in time when products are shipped to the customer. Short-term arrangements within its SCC operating segment involve selling concrete admixtures and providing dispensers to customers. Such arrangements contain a lease element due to the customer's right to control the use of dispensers over a period of time in exchange for consideration. Dispenser leases have a non-cancelable lease term of thirty days or less. The Company classifies leases as operating and recognizes revenue on a straight line basis over the lease term. Revenue for concrete admixtures is recognized at the point of time when control is transferred to the customer. The Company generates revenue from long-term arrangements within its SCC operating segment, which generally consist of VERIFI ® and Ductilcrete sales arrangements. VERIFI ® sales arrangements involve installing equipment on the customers’ trucks and at their plants, as well as performing slump management and truck location tracking services. The installed equipment represents a lease since the customer has the right to control its use over a period of time in exchange for consideration. Slump management and truck location tracking services represent a separate performance obligation for which revenue is recognized over the performance period. The Company classifies leases as operating and recognizes revenue on a straight line basis over the lease term. The transaction price in VERIFI ® sales arrangements consists of fixed installation fees and other fixed payments included in the contract consideration, as well as slump management fees which are dependent on the quantity of material poured and represent variable consideration. The Company allocates the contract consideration and the variable consideration between the lease element and the services based on their relative stand-alone selling prices. Revenue related to variable consideration is recorded at the time the services are performed and constrained by the amount for which a significant revenue reversal is not probable to occur. Revenue generated from VERIFI ® sales arrangements represented less than 10% of the Company's consolidated revenue during the three months ended March 31, 2020 and 2019. The following table summarizes the revenue recognized for these sales arrangements for the three months ended March 31, 2020 and 2019 and distinguishes between the lease and the service revenue: Three Months Ended (In millions) 2020 2019 Lease revenue (1): Lease payments revenue $ 6.8 $ 6.4 Variable lease revenue 2.0 1.5 Total lease revenue $ 8.8 $ 7.9 Service revenue (2): Fixed fee revenue $ 0.1 $ — Variable fee revenue 1.3 1.0 Total service revenue $ 1.4 $ 1.0 Total revenue $ 10.2 $ 8.9 ________________________________ (1) Lease revenue consists of dispenser lease revenue, as well as an allocated portion of VERIFI ® fixed fees and variable slump management fees. Lease revenue is included within "Net Sales" in the accompanying unaudited Consolidated Statements of Operations. (2) Service revenue consists of an allocated portion of VERIFI ® fixed fees and variable slump management fees. Service revenue is included within "Net Sales" in the accompanying unaudited Consolidated Statements of Operations. As of March 31, 2020 and December 31, 2019, the Company’s total trade accounts receivable balance was $160.5 million and $183.7 million, respectively, of which $5.3 million and $5.6 million, respectively, was related to trade accounts receivable associated with lease revenue generated from certain SCC contracts. The future minimum lease payments receivable under the operating leases were not material as of March 31, 2020. Revenue generated from Ductilcrete sales arrangements represented less than 10% of the Company's consolidated revenue during the three months ended March 31, 2020 and 2019. The Company’s revenue is principally recognized as goods and services are delivered and performance obligations are satisfied upon delivery. The Company has certain long-term arrangements resulting in remaining obligations for which the work has not been performed or has been partially performed. As of March 31, 2020, the aggregate amount of the transaction price allocated to remaining performance obligations was $6.7 million, including the estimated transaction price to be earned as revenue over the remaining term of these contracts, which is generally one to five years. The Company’s contract assets and liabilities resulting from its contracts in the SCC or SBM operating segments were not material as of March 31, 2020 and December 31, 2019. Additionally, the amounts recorded in the accompanying unaudited Consolidated Statements of Operations during the three months ended March 31, 2020 and 2019 related to changes in the contract assets and liabilities were not material. For further information on revenue recognition related to product sale arrangements, please refer to Note 2, "Revenue from Lessor Arrangements and Contracts with Customers", to the Company’s Consolidated Financial Statements included in the 2019 Annual Report on Form 10-K.

Accounts Receivable, Allowance

Accounts Receivable, Allowance for Credit Losses	3 Months Ended
	Mar. 31, 2020
Credit Loss [Abstract]
Accounts Receivable, Allowance for Credit Losses	Accounts Receivable, Allowance for Credit Losses Trade accounts receivable are amounts due from customers for products sold or services performed in the ordinary course of business and are stated at their estimated net realizable value representing amounts expected to be collected. Allowance for credit losses is reviewed on a quarterly basis and measured based on historical loss rates and the impact of current and future conditions, including an assessment of customer creditworthiness, historical payment experience, the age of outstanding receivables and collateral to the extent applicable. The Company evaluates the allowance for credit losses for the entire portfolio of trade accounts receivable on an aggregate basis due to similar risk characteristics of its customers based on similar industry and historical loss patterns. Accounts receivable balances are written off against the allowance for credit losses when the Company determines that the balances are not recoverable. Provisions for expected credit losses are recorded in "Selling, general and administrative expenses" in the accompanying unaudited Consolidated Statements of Operations. As of March 31, 2020 and December 31, 2019, allowance for credit losses was $7.4 million and $7.5 million, respectively. The following table summarizes the activity for the allowance for credit losses during the three months ended March 31, 2020 and 2019: (In millions) Three Months Ended March 31, 2020 2019 Beginning balance $ 7.5 $ 5.8 Provision for expected credit losses 0.4 0.5 Write offs (0.1) (0.5) Foreign currency translation adjustments (0.4) (0.1) Ending balance $ 7.4 $ 5.7

Inventories, net

Inventories, net	3 Months Ended
	Mar. 31, 2020
Inventory Disclosure [Abstract]
Inventories, net	Inventories, net The following is a summary of inventories presented in the accompanying unaudited Consolidated Balance Sheets at March 31, 2020 and December 31, 2019: (In millions) March 31, December 31, Raw materials $ 44.3 $ 40.0 In process 4.3 4.0 Finished products and other 55.1 51.9 Total inventories, net $ 103.7 $ 95.9

Derivative Instruments

Derivative Instruments	3 Months Ended
	Mar. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Derivative Instruments The Company uses derivative instruments to partially offset its business exposure to foreign currency risk on net investments in certain foreign subsidiaries. The Company enters into foreign currency forward contracts to offset a portion of the changes in the carrying amounts of its net investments in foreign operations due to fluctuations in foreign currency exchange rates. As of March 31, 2020, the Company was a party to four forward contracts with an aggregate notional amount of €40.0 million to hedge foreign currency exposure on net investments in certain of its European subsidiaries whose functional currency is the Euro. These forward contracts are designated as hedging instruments and recognized at fair value as assets or liabilities in the accompanying unaudited Consolidated Balance Sheets. Each contract has a notional amount of €10.0 million and matures annually starting on June 15, 2020 through June 13, 2023. The contracts will settle in US Dollars upon maturity. The forward contracts are designated and qualify as net investment hedges for which effectiveness is assessed based on the spot rate method. Please refer to Note 4, "Derivative Instruments", to the Company’s Consolidated Financial Statements included in the 2019 Annual Report on Form 10-K for further information on net investment hedges. The following table summarizes the fair value of the Company’s derivative instruments designated as net investment hedges as of March 31, 2020 and December 31, 2019: (In millions) March 31, 2020 December 31, 2019 Derivative assets (1) : Foreign exchange forward contracts $ 3.1 $ 1.1 __________________________ (1) The fair value of derivative instruments is measured based on expected future cash flows discounted at market interest rates using observable market inputs and classified as Level 2 within the fair value hierarchy. Fair value of derivative assets is recorded within "Other Current Assets" and "Other Assets" in the accompanying unaudited Consolidated Balance Sheets. The following table summarizes the amounts recorded in the Company's accompanying unaudited Consolidated Statements of Operations and Consolidated Statements of Comprehensive (Loss) Income related to forward contracts designated as net investment hedges for the three months ended March 31, 2020: (In millions) Three Months Ended March 31, 2020 Other Income, net Cumulative Translation Adjustments (1) Gains on foreign exchange forward contracts $ 0.3 $ 1.3 __________________________ (1) The amount is presented net of tax impact of $0.4 million for the three months ended March 31, 2020.

Debt and Other Borrowings

Debt and Other Borrowings	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Debt and Other Borrowings	Debt and Other Borrowings Components of Debt and Other Borrowings The following is a summary of obligations under senior notes and other borrowings at March 31, 2020 and December 31, 2019: (In millions) March 31, December 31, 5.5% Senior Notes due in 2026, net of unamortized debt issuance costs of $3.7 million and $3.9 million, respectively, at March 31, 2020 and December 31, 2019 $ 346.3 $ 346.1 Revolving credit facility due 2023 (1) — — Other borrowings (2) 5.2 3.1 Total debt 351.5 349.2 Less: debt payable within one year 2.9 2.7 Debt payable after one year $ 348.6 $ 346.5 Weighted average interest rates on total debt obligations 5.5 % 5.5 % __________________________ (1) Represents borrowings under the Revolving Credit Facility with an aggregate available principal amount of $350.0 million as of March 31, 2020 and December 31, 2019. (2) Represents borrowings of $1.7 million and $1.8 million, respectively, at March 31, 2020 and December 31, 2019, under various lines of credit and other borrowings, primarily by non-U.S. subsidiaries, as well as $3.5 million and $1.3 million, respectively, of finance lease obligations. The principal maturities of debt obligations outstanding, net of debt issuance costs, were as follows at March 31, 2020: (In millions) Amount Remainder of 2020 $ 2.9 2021 0.6 2022 0.6 2023 0.6 2024 0.5 Thereafter 346.3 Total debt $ 351.5 5.5% Senior Notes GCP's outstanding 5.5% Senior Notes have an aggregate principal amount of $350.0 million maturing on April 15, 2026. Interest on the 5.5% Senior Notes is payable semi-annually in arrears on April 15 and October 15 of each year. The Company made an interest payment of $9.6 million on April 15, 2020. The Indenture contains certain customary affirmative and negative covenants and events of default, as described in Note 8, "Debt and Other Borrowings," to the Company's Consolidated Financial Statements included in the 2019 Annual Report in the Form 10-K. The Company was in compliance with all covenants and conditions under the Indenture as of March 31, 2020. There are no events of default under the Indenture as of March 31, 2020. Credit Agreement As of March 31, 2020 and December 31, 2019, there were no outstanding borrowings on the Revolving Credit Facility. There were $2.2 million and $5.9 million, respectively, in outstanding letters of credit which resulted in available credit of $347.8 million and $344.1 million, respectively. There were no interest payments on the Revolving Credit Facility during the three months ended March 31, 2020. The interest rate per annum applicable to the Revolving Credit Facility is equal to, at GCP’s option, either: (i) a base rate plus a margin ranging from 0.5% to 1.0%, or (ii) LIBOR plus a margin ranging from 1.5% to 2.0%, based upon the total leverage ratio of GCP and its restricted subsidiaries in both scenarios. The Credit Agreement contains conditions that would require mandatory principal payments in advance of the maturity date of the Revolving Credit Facility, as well as certain customary affirmative and negative covenants and events of default, as described in Note 8, "Debt and Other Borrowings," to the Company's Consolidated Financial Statements included in the 2019 Annual Report in the Form 10-K. The Company was in compliance with all covenant terms as of March 31, 2020. There are no events of default as of March 31, 2020. Debt Issuance Costs GCP recognizes expenses directly associated with obtaining the Revolving Credit Facility as debt issuance costs which are presented within "Other assets" in the accompanying unaudited Consolidated Balance Sheets. Such costs are amortized over the term of the Revolving Credit Facility and included in “Interest expense and related financing costs” in the accompanying unaudited Consolidated Statements of Operations. As of March 31, 2020 and December 31, 2019, the remaining unamortized debt issuance costs related to the Revolving Credit Facility were $2.9 million and $3.1 million, respectively. Debt Fair Value The carrying amount and fair value of GCP's debt and other borrowings were as follows: March 31, 2020 December 31, 2019 (In millions) Carrying Amount Fair Value Carrying Amount Fair Value 5.5% Senior Notes due in 2026 $ 346.3 $ 328.7 $ 346.1 $ 366.3 Other borrowings 5.2 5.2 3.1 3.1 Total debt $ 351.5 $ 333.9 $ 349.2 $ 369.4 Fair value is determined based on Level 2 inputs, including expected future cash flows (discounted at market interest rates), estimated current market prices, and quotes from financial institutions. The decrease in fair value compared to the carrying value as of March 31, 2020 was driven by high market fluctuations due to COVID-19 pandemic.

Lessee Arrangements

Lessee Arrangements	3 Months Ended
	Mar. 31, 2020
Leases [Abstract]
Lessee Arrangements	Lessee Arrangements The Company leases manufacturing and office facilities, as well as certain vehicles and equipment under operating leases. The following table summarizes components of lease expense for the three months ended March 31, 2020 and 2019: Three Months Ended (In millions) 2020 2019 Operating lease expense $ 3.2 $ 3.3 Variable lease expense 1.1 1.2 Short-term lease expense 0.6 0.4 Total lease expense $ 4.9 $ 4.9 The following table summarizes supplemental cash flow information related to leases during the three months ended March 31, 2020 and 2019: Three Months Ended (In millions) 2020 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3.2 $ 3.3 Operating lease right of use assets obtained in exchange for new lease obligations: Upon adoption of Topic 842 $ — $ 40.8 During the current period 7.7 1.0 Total $ 7.7 $ 41.8
Lessee Arrangements	Lessee Arrangements The Company leases manufacturing and office facilities, as well as certain vehicles and equipment under operating leases. The following table summarizes components of lease expense for the three months ended March 31, 2020 and 2019: Three Months Ended (In millions) 2020 2019 Operating lease expense $ 3.2 $ 3.3 Variable lease expense 1.1 1.2 Short-term lease expense 0.6 0.4 Total lease expense $ 4.9 $ 4.9 The following table summarizes supplemental cash flow information related to leases during the three months ended March 31, 2020 and 2019: Three Months Ended (In millions) 2020 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3.2 $ 3.3 Operating lease right of use assets obtained in exchange for new lease obligations: Upon adoption of Topic 842 $ — $ 40.8 During the current period 7.7 1.0 Total $ 7.7 $ 41.8

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax attributable to continuing operations during the three months ended March 31, 2020 and 2019 was an income tax benefit of $1.9 million and $16.4 million, respectively, representing effective tax rates of 475.0% and 1,025.0%, respectively. The difference in income tax at the U.S. federal income tax rate of 21.0% and GCP’s overall income tax rate for the three months ended March 31, 2020 was primarily due to benefits recognized as a result of the Coronavirus Aid Relief and Economic Security ("CARES") Act. The CARES Act allows for accelerated interest and depreciation deductions which will cause GCP to incur tax net operating losses in 2019 and 2020. Under the CARES Act, these losses can be carried back to offset prior year taxable income that was taxed at the U.S. federal income tax rate of 35%. This resulted in an income tax benefit of $2.8 million, offset by increases in unrecognized tax benefits of $0.4 million and valuation allowance expense of $0.6 million. The difference between the provision for income taxes at the U.S. federal income tax rate of 21.0% and GCP's overall income tax rate for the three months ended March 31, 2019 was primarily attributable to the finalization of the Transition Tax regulations issued in January 2019 resulting in a tax benefit from the release of an uncertain tax position in the amount of $20.2 million, partially offset by a tax expense of $3.6 million on changes to GCP's 2017 income tax liability and Transition Tax. Tax Reform As a result of the additional deductions and net operating loss carryback allowable to GCP under the CARES Act, GCP decreased its outstanding Transition Tax liability by $12.4 million, increased its income tax receivable by $1.2 million, and reduced its deferred tax assets by $10.8 million during the three months ended March 31, 2020. GCP had previously elected to pay the Transition Tax over the eight-year period as provided in the 2017 Tax Act. As of March 31, 2020, the unpaid balance of the Transition Tax obligation is $29.0 million, net of overpayments and foreign tax credits. After considering overpayments, the outstanding payable is due between April 2023 and April 2025. During the year ended December 31, 2018, GCP recorded a $20.2 million liability for an unrecognized tax benefits related to certain capital gains recognized as a result of the application of the Transition Tax. As a result of clarifications contained in final regulations issued by the IRS in January 2019, GCP decreased its liability for unrecognized tax benefits by $20.2 million during the three months ended March 31, 2019. For additional information related to the 2017 Tax Act, please refer to Note 9, "Income Taxes," to the Company's Consolidated Financial Statements included in the 2019 Annual Report on Form 10-K. Repatriation In general, it is GCP's practice and intention to permanently reinvest the earnings of its foreign subsidiaries and repatriate earnings only when the tax impact is efficient. Valuation Allowance In evaluating GCP's ability to realize its deferred tax assets, GCP considers all reasonably available positive and negative evidence, including recent earnings experience, expectations of future taxable income and the tax character of that income, the period of time over which temporary differences become deductible and the carryforward and/or carryback periods available to GCP for tax reporting purposes in the related jurisdiction. In estimating future taxable income, GCP relies upon assumptions and estimates about future activities, including the amount of future federal, state and foreign pretax operating income that GCP will generate; the reversal of temporary differences; and the implementation of feasible and prudent tax planning strategies. GCP records a valuation allowance to reduce deferred tax assets to the amount that it believes is more likely than not to be realized. During the three months ended March 31, 2020 and March 31, 2019, GCP incurred income tax expense for valuation allowances of $0.6 million and $0.4 million, respectively, recorded against deferred tax assets for prior net operating losses incurred primarily in Australia and India. Tax Sharing Agreement In connection with the Separation, GCP and Grace entered into various agreements that govern the relationship between the parties going forward, including a tax matters agreement (the "Tax Sharing Agreement"). Under the Tax Sharing Agreement, GCP and Grace will indemnify and hold each other harmless in accordance with the principles outlined therein. Please refer to Note 17, "Related Party Transactions and Transactions with Grace" for further information on the Tax Sharing Agreement.

Pension Plans and Other Postret

Pension Plans and Other Postretirement Benefit Plans	3 Months Ended
	Mar. 31, 2020
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Pension Plans and Other Postretirement Benefit Plans	Pension Plans and Other Postretirement Benefit Plans Pension Plans GCP sponsors defined benefit pension plans, primarily in the U.S. and the U.K., in which GCP employees and former employees participate. GCP records an asset or a liability to recognize the funded status of these pension plans in its accompanying unaudited Consolidated Balance Sheets. The following table presents the funded status of GCP's overfunded, underfunded and unfunded defined pension plans: (In millions) March 31, 2020 December 31, 2019 Overfunded defined benefit pension plans $ 23.6 $ 25.0 Underfunded defined benefit pension plans (41.5) (40.8) Unfunded defined benefit pension plans (26.4) (26.7) Total underfunded and unfunded defined benefit pension plans (67.9) (67.5) Pension liabilities included in other current liabilities (0.9) (1.2) Net funded status $ (45.2) $ (43.7) Components of Net Periodic Benefit Cost The components of GCP's net periodic benefit cost for the three months ended March 31, 2020 and 2019 are as follows: Three Months Ended 2020 2019 Pension Pension (In millions) U.S. Non-U.S. U.S. Non-U.S. Service cost $ 1.5 $ 0.1 $ 1.5 $ 0.7 Interest cost 1.3 — 1.4 1.4 Expected return on plan assets (1.6) — (1.6) (1.5) Net periodic benefit cost (1) $ 1.2 $ 0.1 $ 1.3 $ 0.6 ________________________________ (1) Service cost component of net periodic benefit cost is included in "Selling, general and administrative expenses" and "Cost of goods sold" in the accompanying unaudited Consolidated Statements of Operations. All other components of net periodic benefit cost are presented in "Other income, net," within the accompanying unaudited Consolidated Statements of Operations. Other Postretirement Benefit (OPEB) Plans GCP provides postretirement health care benefits for certain qualifying retired employees. As of March 31, 2020 and December 31, 2019, the related long-term liability was $2.0 million and $2.2 million, respectively. As of March 31, 2020 and December 31, 2019, accumulated other comprehensive income was $0.6 million and $0.7 million, respectively, net of related tax impact of $0.2 million as of the end of each period. The net periodic postretirement benefit cost for the three months ended March 31, 2020 and March 31, 2019 was immaterial. Plan Contributions and Funding GCP intends to satisfy its funding obligations under the U.S. qualified pension plans and to comply with all of the requirements of the Employee Retirement Income Security Act of 1974, as amended ("ERISA"). For ERISA purposes, funded status is calculated on a different basis than under GAAP. We made a contribution of $0.1 million to the U.S. pension plans during the three months ended March 31, 2020 and no contributions to these plans during the prior-year quarter. GCP intends to fund non-U.S. pension plans based on applicable legal requirements, as well as actuarial and trustee recommendations. During the three months ended March 31, 2020 and 2019, GCP contributed $0.5 million and $0.9 million, respectively, to these non-U.S. plans. Defined Contribution Retirement Plan GCP sponsors a defined contribution retirement plan for its employees in the U.S. which is a qualified plan under section 401(k) of the U.S. tax code. Under this plan, GCP contributes an amount equal to 100% of employee contributions, up to 6% of an individual employee's salary or wages. Effective January 1, 2018, GCP amended the defined contribution plan whereby GCP contributes up to an additional 2% of 100% of applicable employee compensation subject to a three

Other Balance Sheet Information

Other Balance Sheet Information	3 Months Ended
	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Other Balance Sheet Accounts	Other Balance Sheet Information The following is a summary of other current assets at March 31, 2020 and December 31, 2019: (In millions) March 31, December 31, Other Current Assets: Non-trade receivables $ 17.2 $ 22.1 Prepaid expenses and other current assets 15.7 13.4 Income taxes receivable 8.0 8.2 Total other current assets $ 40.9 $ 43.7 The following is a summary of other current liabilities at March 31, 2020 and December 31, 2019: (In millions) March 31, December 31, Other Current Liabilities: Accrued customer volume rebates $ 17.1 $ 28.4 Accrued compensation (1) 11.8 16.0 Income taxes payable 8.7 10.4 Accrued interest 8.8 4.2 Pension liabilities 0.9 1.2 Restructuring liability 3.3 2.7 Other accrued liabilities 49.3 50.7 Total other current liabilities $ 99.9 $ 113.6 ________________________________ (1) Accrued compensation presented in the table above includes salaries and wages, as well as estimated current amounts due under the annual and long-term employee incentive programs. Acquisitions On May 4, 2018, GCP acquired 100% of the outstanding capital stock of Clydebridge Holdings Limited which owns 100% of RIW Limited ("RIW"), a U.K.-based supplier of waterproofing solutions for commercial and residential construction applications. The aggregate purchase price of $29.5 million, net of cash acquired of $10.0 million, consisted of a net cash payment of $29.8 million, which was reduced by working capital adjustments of $0.3 million. At the closing of the acquisition of RIW, a portion of the consideration was placed into escrow which was ascribed to the purchase price and will be released to the sellers no later than December 30, 2020. The escrow was related to the sellers’ satisfaction of indemnity claims and general representations and warranties. As of March 31, 2020, $1.3 million of consideration was released from the escrow to the sellers based on the provisions of the related agreement. Please refer to Note 20, "Acquisitions and Dispositions" to the Company's Consolidated Financial Statements included in the 2019 Annual Report in the Form 10-K for further information on this transaction.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and ContingenciesGCP enters into certain purchase commitments and is a party to many contracts containing guarantees and indemnification obligations, as described in Note 12, "Commitments and Contingencies" to the Company's Consolidated Financial Statements included in the 2019 Annual Report in the Form 10-K. There have been no material changes to these commitments and obligations during the three months ended March 31, 2020. Although the outcome of each of the matters related to loss contingencies and obligations discussed below cannot be predicted with certainty, GCP has assessed the risk and has made accounting estimates and disclosures as required under GAAP. Environmental Matters GCP is subject to loss contingencies resulting from extensive and evolving federal, state, local and foreign environmental laws and regulations relating to the generation, storage, handling, discharge, disposition and stewardship of hazardous wastes and other materials. GCP recognizes accrued liabilities for anticipated costs associated with response efforts if, based on the results of the assessment, it concluded that a probable liability has been incurred and the cost can be reasonably estimated. As of March 31, 2020 and December 31, 2019, GCP did not have any material environmental liabilities. GCP's environmental liabilities are reassessed whenever circumstances become better defined or response efforts and their costs can be better estimated. These liabilities are evaluated based on currently available information, including the progress of remedial investigations at each site, the current status of discussions with regulatory authorities regarding the method and extent of remediation at each site, existing technology, prior experience in contaminated site remediation and the apportionment of costs among potentially responsible parties. Financial Assurances Financial assurances have been established for a variety of purposes, including insurance, environmental matters and other matters. At March 31, 2020 and December 31, 2019, GCP had gross financial assurances issued and outstanding of $5.1 million and $5.9 million, respectively, which were composed of standby letters of credit. The letters of credit are related primarily to customer advances and other performance obligations as of March 31, 2020 and December 31, 2019. These arrangements guarantee the refund of advance payments received from customers in the event that the product is not delivered or warranty obligations are not fulfilled in accordance with the contract terms. These obligations could be called by the beneficiaries at any time before the expiration date of the particular letter of credit if the Company fails to meet certain contractual requirements. Lawsuits and Investigations From time to time, GCP and its subsidiaries are parties to, or targets of, lawsuits, claims, investigations and proceedings which are managed and defended in the ordinary course of business. While GCP is unable to predict the outcome of these matters, it does not believe, based upon currently available facts, that the ultimate resolution of any of such pending matters will have a material adverse effect on its overall financial condition, results of operations or cash flows for the three months ended March 31, 2020. GCP Brazil Indirect Tax Claim

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Stockholders' Equity	Stockholders' Equity Stockholder Rights Plan On March 15, 2019, the Board of Directors (the "Board") declared a dividend of one preferred share purchase right (a “Right”) for each outstanding share of GCP common stock with par value $0.01 per share and adopted a stockholder rights plan (the “Rights Agreement”), as described in Note 13, "Stockholders' Equity," to the Company's Consolidated Financial Statements included in the 2019 Annual Report in the Form 10-K. The Rights were not becoming exercisable until 10 days after the public announcement that a person or group has become an “Acquiring Person” (as defined in the Rights Agreement) by obtaining beneficial ownership of 15% or more of the Company’s outstanding shares of common stock. If a stockholder’s beneficial ownership as of March 15, 2019 was at or above 15%, that stockholder’s existing ownership percentage would be grandfathered, but the Rights would become exercisable if at any time after an announcement that the stockholder increases its ownership percentage by 0.001% or more. The Rights were initially set to expire on March 14, 2020. On March 13, 2020, the Board approved an amendment to the Rights Agreement which raised the level of beneficial ownership for an Acquiring Person to 20% of the Company's outstanding shares of common stock and extended the final expiration date of the Rights Agreement to March 14, 2023, subject to stockholder approval at GCP's 2020 annual stockholders meeting. If a stockholder's beneficial ownership on March 15, 2019 was at or above 20%, that stockholder's existing ownership percentage would be grandfathered, but the Rights would become exercisable if the stockholder increases its ownership percentage by 0.001% or more. The Rights Agreement will expire following the 2020 annual meeting if the stockholders approval does not get obtained. Preferred Stock The Company is authorized to issue up to 50,000,000 shares of Preferred Stock with a par value of $0.01 per share. On March 15, 2019, GCP designated 10,000,000 shares of its Preferred Stock with a par value of $0.01 per share as Series A Junior Participating Preferred Stock.

Restructuring and Repositioning

Restructuring and Repositioning Expenses, Asset Impairments	3 Months Ended
	Mar. 31, 2020
Restructuring and Related Activities [Abstract]
Restructuring and Repositioning Expenses, Asset Impairments	Restructuring and Repositioning Expenses, Asset Impairments GCP's Board of Directors approves all major restructuring and repositioning programs. Restructuring may involve the discontinuation of significant product lines or the shutdown of significant facilities. From time to time, GCP takes additional restructuring actions, including involuntary employee terminations that are not a part of a major program. Repositioning activities generally represent major strategic or transformational actions to enhance the value and performance of the Company, improve business efficiency or optimize the Company’s footprint. Repositioning expenses associated with the Plans discussed below, as well as a review of strategic, financial and operational alternatives, are primarily related to consulting, professional services, and other employee-related costs associated with the Company’s organizational realignment and advancing its technology strategy. Due to the scope and complexity of the Company’s repositioning activities, the range of estimated repositioning expenses and capital expenditures could increase or decrease and the timing of incurrence could change. 2019 Restructuring and Repositioning Plan (the “2019 Plan”) On February 22, 2019, the Board of Directors approved a business restructuring and repositioning plan (the “2019 Plan”). The 2019 Plan is focused on GCP’s global supply chain strategy, processes and execution, including its manufacturing, purchasing, logistics, and warehousing operations. The plan also addresses GCP’s service delivery model, primarily in North America, to streamline the Company’s pursuit of combined admixture and VERIFI ® opportunities. The Company expects to incur total pre-tax costs in connection with the 2019 Plan of approximately $15 million to $20 million, of which costs ranging from approximately $4 million to $7 million are related to restructuring and asset impairments, and costs of approximately $11 million to $13 million are related to repositioning. In addition, the Company expects to incur approximately $2 million to $3 million of capital expenditures associated with the program. Total expected restructuring costs consist of approximately $2 million to $3 million of severance and other employee-related costs, $1 million to $3 million of other associated costs, and approximately $1 million of asset impairments. As of March 31, 2020, the cumulative restructuring costs incurred under the 2019 Plan since its inception were $2.0 million, of which $1.6 million was related to the SCC segment and $0.4 million was related to the SBM segment. Cumulative restructuring activity costs incurred to date consisted of $0.9 million of severance and employee-related costs, $0.9 million of asset impairments and $0.2 million of other associated costs. Repositioning costs consist primarily of consulting services to assist GCP in advancing its technology strategy. During the three months ended March 31, 2020 and 2019, GCP incurred repositioning expenses of $1.4 million and $2.0 million, respectively, related to the 2019 Plan. Additionally, the Company incurred $1.2 million of capital expenditures under the 2019 Plan since its inception. As of March 31, 2020, cumulative cash payments made for repositioning under the 2019 Plan since its inception were $9.8 million, which included capital expenditures of $0.9 million, of which $3.6 million were made during the three months ended March 31, 2020. With the exception of asset impairments, substantially all of the restructuring and repositioning expenses are expected to be settled in cash and completed by December 31, 2020. 2019 Phase 2 Restructuring and Repositioning Plan (the “2019 Phase 2 Plan") On July 31, 2019, the Board approved a business restructuring and repositioning plan to further optimize the design and footprint of the Company's global organization, primarily with respect to its general administration and business support functions, and streamline cross-functional activities (the “2019 Phase 2 Plan”). The Company expects to incur total pre-tax costs in connection with the 2019 Phase 2 Plan of approximately $25 million to $30 million, a decrease of approximately $5 million from the prior estimate, due to lower than expected severance costs. The 2019 Phase 2 Plan expenses range from approximately $18 million to $22 million related to restructuring and asset impairments and costs of approximately $7 million to $8 million are related to repositioning. The Company expects to incur approximately $2 million of capital expenditures associated with the program. Total expected restructuring activity costs consist of approximately $14 million to $17 million of severance and other employee-related costs and $4 million to $5 million of other associated costs. As of March 31, 2020, the cumulative restructuring costs recognized under the 2019 Phase 2 Plan since its inception were $4.9 million, of which $2.9 million was attributable to the SCC segment and $2.0 million was attributable to the SBM segment. Cumulative restructuring activity costs incurred to date consisted of $4.8 million of severance and employee-related costs and $0.1 million of asset impairments. The 2019 Phase 2 Plan is expected to result in the net reduction of approximately 8%-10% of the Company's workforce. Repositioning costs consist primarily of consulting services and employee-related costs to assist with the Company's organizational realignment. During the three months ended March 31, 2020, GCP incurred repositioning expenses of $1.2 million. Additionally, the Company incurred $0.2 million of capital expenditures under the 2019 Phase 2 Plan since its inception. As of March 31, 2020, cumulative cash payments made for repositioning under the 2019 Phase 2 Plan since its inception amounted to $2.6 million, which included capital expenditures of $0.1 million, of which $1.6 million were made during the three months ended March 31, 2020. With the exception of asset impairments, substantially all of the restructuring and repositioning expenses are expected to be settled in cash and completed by December 31, 2021. Restructuring Expenses and Asset Impairments The following restructuring expenses and asset impairment charges were incurred under the plans discussed above and other plans during each period: Three Months Ended (In millions) 2020 2019 Severance and other employee costs $ 1.9 $ 0.3 Asset impairments 1.0 0.2 Other associated costs 0.2 0.2 Total restructuring expenses and asset impairments $ 3.1 $ 0.7 Less: restructuring expenses and asset impairments reflected in discontinued operations — 0.1 Total restructuring expenses and asset impairments from continuing operations $ 3.1 $ 0.6 GCP incurred restructuring expenses and asset impairment charges related to its two operating segments and Corporate function as follows: Three Months Ended (In millions) 2020 2019 SCC $ 2.3 $ 0.6 SBM 0.8 — Corporate — — Total restructuring expenses and asset impairments from continuing operations $ 3.1 $ 0.6 Restructuring expenses and asset impairments reflected in discontinued operations — 0.1 Total restructuring expenses and asset impairments $ 3.1 $ 0.7 Restructuring liabilities were $3.3 million and $2.7 million, respectively, as of March 31, 2020 and December 31, 2019. These liabilities are included within “Other current liabilities” in the accompanying unaudited Consolidated Balance Sheets. GCP settled in cash substantially all of the remaining liabilities related to the 2017 Plan during the three months ended March 31, 2020. The following table summarizes the Company’s restructuring liability activity: 2019 Plan 2019 Phase 2 Plan 2018 Plan (2) 2017 Plan (2) Severance and other employee costs Other Costs Severance and other employee costs Severance and other employee costs Other Costs Severance and other employee costs Total Balance, December 31, 2019 $ 0.2 $ — $ 0.9 $ 1.0 $ 0.4 $ 0.2 $ 2.7 Expense (1) 0.2 0.2 1.7 — — — 2.1 Payments (0.1) — (0.6) (0.2) (0.3) (0.1) (1.3) Impact of foreign currency and other — — (0.1) (0.1) — (0.2) Balance, March 31, 2020 $ 0.3 $ 0.2 $ 2.0 $ 0.7 $ — $ 0.1 $ 3.3 ________________________________ (1) Asset impairment charges of $1.0 million attributable to the SCC segment for the three months ended March 31, 2020 are related to the 2019 Plan and 2019 Phase 2 Plan and recorded with a corresponding reduction to "Properties and equipment, net" in the accompanying unaudited Consolidated Balance Sheets. These expenses are not recorded with a corresponding reduction to the restructuring liability and therefore, are not included in the table above.

Other Comprehensive (Loss) Inco

Other Comprehensive (Loss) Income	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Other Comprehensive (Loss) Income	Other Comprehensive (Loss) Income The following tables present the pre-tax, tax, and after-tax components of GCP's other comprehensive (loss) income for the three months ended March 31, 2020 and 2019: Three Months Ended (In millions) Pre-Tax Amount Tax Expense After-Tax Amount Defined benefit pension and other postretirement plans $ 0.1 $ — $ 0.1 Currency translation adjustments (1) $ (33.4) $ (0.4) $ (33.8) Gain from hedging activities $ 0.2 $ — $ 0.2 Other comprehensive loss attributable to GCP shareholders $ (33.1) $ (0.4) $ (33.5) Three Months Ended (In millions) Pre-Tax Amount Tax After-Tax Amount Currency translation adjustments $ 3.3 $ — $ 3.3 Loss from hedging activities (0.1) — (0.1) Other comprehensive income attributable to GCP shareholders $ 3.2 $ — $ 3.2 __________________________ (1) Currency translation adjustments related to the net investment hedge are presented net of income taxes, as discussed in Note 5, "Derivative Instruments." The following tables present the changes in accumulated other comprehensive loss, net of tax, for the three months ended March 31, 2020 and 2019: (In millions) Defined Benefit Pension and Other Postretirement Plans Currency Translation Adjustments Hedging Activities Total Balance, December 31, 2019 $ (2.7) $ (114.2) $ (0.1) $ (117.0) Current period other comprehensive income (loss) 0.1 (33.8) 0.2 (33.5) Balance, March 31, 2020 $ (2.6) $ (148.0) $ 0.1 $ (150.5) (In millions) Defined Benefit Pension and Other Postretirement Plans Currency Translation Adjustments Hedging Activities Total Balance, December 31, 2018 $ (2.2) $ (117.8) $ — $ (120.0) Current period other comprehensive income (loss) — 3.3 (0.1) 3.2 Balance, March 31, 2019 $ (2.2) $ (114.5) $ (0.1) $ (116.8) Please refer to Note 9, "Pension Plans and Other Postretirement Benefit Plans," for a discussion of pension plans and other postretirement benefit plans.

Stock Incentive Plans

Stock Incentive Plans	3 Months Ended
	Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Stock Incentive Plans	Stock Incentive Plans Stock-Based Compensation Accounting GCP grants stock options, restricted stock units (the "RSUs") and performance-based units (the "PBUs") with or without market conditions which vest upon the satisfaction of a performance condition and/or a service condition. Please refer to Note 17, "Stock Incentive Plans" to the Company's Consolidated Financial Statements included in the 2019 Annual Report in the Form 10-K for further information on these awards. GCP estimates the fair value of equity awards issued at the grant date which is recognized as stock-based compensation expense on a straight line basis, net of estimated forfeitures, over the employee’s requisite service period for each separately vesting portion of the award. Total stock-based compensation expense is included in "Loss from continuing operations before income taxes" in the accompanying unaudited Consolidated Statements of Operations and was $0.8 million and $1.9 million, respectively, during the three months ended March 31, 2020 and 2019. The Company issues new shares of common stock upon exercise of stock options. In accordance with certain provisions of the GCP Equity and Incentive Plan (the "Plan"), GCP withholds and retains shares issued to certain holders of GCP awards in order to fulfill statutory tax withholding requirements for the employees. During the three months ended March 31, 2020 and 2019, GCP withheld and retained approximately 15,800 shares and 125,400 shares, respectively, in a non-cash transaction with a cost of $0.3 million and $3.2 million, respectively, which were reflected as "Share Repurchases" in the accompanying unaudited Consolidated Statements of Stockholder's Equity. During the three months ended March 31, 2020 and 2019, cash payments for such tax withholding obligations were $0.3 million and $3.2 million, respectively. As of March 31, 2020, approximately 7.5 million shares of common stock were reserved and available for future grant under the Plan. Stock Options There were no stock options granted during the three months ended March 31, 2020. The following assumptions were utilized in the Black-Scholes option pricing model for estimating the fair value of GCP's stock options granted during the three months ended March 31, 2019: Three Months Ended March 31, Assumptions used to calculate expense for stock options: 2019 Risk-free interest rate 2.44 - 2.64% Average life of options (years) 5.5 - 6.5 Volatility 28.02 - 28.59% Dividend yield — Weighted average fair value per stock option $8.70 The following table sets forth information relating to stock options denominated in GCP stock during the three months ended March 31, 2020: Stock Option Activity Number Of Weighted Weighted Aggregated Outstanding, December 31, 2019 1,284 22.66 3.18 $ 3,171 Options exercised (20) 19.23 Options forfeited/expired/canceled (18) 28.39 Options granted — — Outstanding, March 31, 2020 1,246 22.62 3.02 $ 249 Exercisable, March 31, 2020 1,073 21.87 2.59 $ 249 Vested and expected to vest, March 31, 2020 1,234 22.58 3.00 $ 249 The weighted average grant date fair value of options granted during the three months ended March 31, 2019 was $8.70. The aggregate intrinsic values in the table above represent the total pre-tax intrinsic value, determined as the difference between GCP's closing stock price on the last trading day of March 31, 2020 and the exercise price, multiplied by the number of in-the-money options that would have been received by the option holders had all option holders exercised their in-the-money options at period end. The amount changes based on the fair market value of GCP's stock. Total intrinsic value of all options exercised during the three months ended March 31, 2020 and 2019 were $0.1 million and $1.7 million, respectively. At March 31, 2020, total unrecognized stock-based compensation expense for stock options outstanding was $0.5 million and is expected to be recognized over the weighted-average period of approximately 1.2 years. Restricted Stock Units and Performance Based Units RSUs and PBUs are granted with the exercise price equal to zero and are converted to shares immediately upon vesting. As of March 31, 2020, $9.1 million of total unrecognized compensation expense related to the RSU and PBU awards is expected to be recognized over the remaining weighted-average service period of approximately 2.1 years. RSUs The Company grants RSUs which are time-based, non-performance units. RSUs generally vest over a three . RSUs are recorded at fair value on the grant date. The common stock-settled awards are considered equity awards, with the stock compensation expense being determined based on GCP’s stock price on the grant date. The following table sets forth the RSU activity for the three months ended March 31, 2020: RSU Activity Number Of Weighted Outstanding, December 31, 2019 156 $ 27.33 RSUs settled (43) 28.02 RSUs forfeited — — RSUs granted 190 21.11 RSUs outstanding, March 31, 2020 303 $ 23.25 Expected to vest as of March 31, 2020 280 $ 23.32 The weighted average grant date fair value of RSUs granted during the three months ended March 31, 2020 and 2019 was $21.11 and $26.62 per share, respectively. During the three months ended March 31, 2020 and 2019, GCP distributed 43,000 shares and 236,000 shares, respectively, to settle RSUs upon vesting. The fair value of RSUs vested during the three months ended March 31, 2020 and 2019 was $0.9 million and $6.0 million, respectively. PBUs PBUs are performance-based units which are granted by the Company either with or without market conditions and recorded at fair value on the grant date. The performance criteria for PBUs granted in 2020 and 2019 include a 3-year cumulative adjusted diluted earnings per share metric that is modified, up or down, based on the Company's total shareholder return ("TSR") relative to the performance of the Russell 3000 Specialty Chemicals and Building Materials Indices. For PBUs granted in 2018, such metric is modified, up or down, based on the Company's TSR relative to the performance of the Russell 3000 Index. The number of shares that ultimately vest, if any, is based on Company performance against these metrics, and can range from 0% to 200% of the target number of shares granted to employees. The 2020, 2019 and 2018 awards will become vested, if at all, three years from the grant date once actual performance is certified by the Board's Compensation Committee. Vesting is also subject to the employees' continued employment through the vesting date. The following table summarizes the assumptions used in the Monte Carlo simulations for estimating the grant date fair values of PBUs granted during the three months ended March 31, 2020 and 2019: Three Months Ended March 31, Assumptions used to calculate expense for PBUs: 2020 2019 Expected Term (Remaining Performance Period) 2.85 2.86 Expected volatility 29.85% 28.46% Risk-free interest rate 1.21% 2.48% Expected dividends — — Correlation coefficient 53.43% 54.81% Median correlation coefficient of constituents 54.01% 57.09%

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following table sets forth a reconciliation of the numerators and denominators used in calculating basic and diluted earnings (loss) per share: Three Months Ended (In millions, except per share amounts) 2020 2019 Numerators Income from continuing operations attributable to GCP shareholders $ 1.4 $ 14.6 (Loss) income from discontinued operations, net of income taxes (0.3) 6.8 Net income attributable to GCP shareholders $ 1.1 $ 21.4 Denominators Weighted average common shares—basic calculation 72.9 72.3 Dilutive effect of employee stock awards (2) 0.1 0.5 Weighted average common shares—diluted calculation 73.0 72.8 Basic earnings (loss) per share: Income from continuing operations attributable to GCP shareholders $ 0.02 $ 0.20 (Loss) income from discontinued operations, net of income taxes $ — $ 0.09 Net income attributable to GCP shareholders (1) $ 0.02 $ 0.30 Diluted earnings (loss) per share: (2) Income from continuing operations attributable to GCP shareholders $ 0.02 $ 0.20 (Loss) income from discontinued operations, net of income taxes $ — $ 0.09 Net income attributable to GCP shareholders (1) $ 0.02 $ 0.29 ________________________________ (1) Amounts may not sum due to rounding. (2) Dilutive effect is only applicable to the periods during which GCP generated net income from continuing operations.

Related Party Transactions and

Related Party Transactions and Transactions with Grace	3 Months Ended
	Mar. 31, 2020
Related Party Transactions [Abstract]
Related Party Transactions and Transactions with Grace	Related Party Transactions and Transactions with Grace Related Parties All contracts with related parties are at rates and terms that GCP believes are comparable with those that could be entered into with independent third parties. Subsequent to the Separation, transactions with Grace represent third-party transactions. Tax Sharing Agreement In connection with the Separation, the Company and Grace entered into a Tax Sharing Agreement which governs the parties’ respective rights, responsibilities and obligations with respect to tax liabilities and benefits, tax attributes, the preparation and filing of tax returns, the control of audits and other tax proceedings, as well as other matters regarding taxes. In general, and subject to the terms of the Tax Sharing Agreement, GCP is responsible for all U.S. federal, state and foreign taxes including any related interest, penalties or audit adjustments reportable on a GCP separate return (a return that does not include Grace or any of its subsidiaries). Grace is responsible for all U.S. federal, state and foreign income taxes including any related interest, penalties or audit adjustments reportable on a consolidated, combined or unitary return that includes Grace or any of its subsidiaries and GCP or any of its subsidiaries up to the Separation date. As of March 31, 2020 and December 31, 2019, GCP has recorded $3.4 million and $3.5 million, respectively, of indemnified receivables in "Other assets" and $0.9 million and $1.0 million, respectively, of indemnified payables in "Other current liabilities" in the accompanying unaudited Consolidated Balance Sheets.

Operating Segment and Geographi

Operating Segment and Geographic Information	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Operating Segment and Geographic Information	Operating Segment and Geographic Information GCP is engaged in the production and sale of specialty construction chemicals and specialty building materials through two operating segments. Specialty Construction Chemicals ("SCC") operating segment manufactures and markets concrete admixtures and cement additives and supplies in-transit monitoring systems for concrete producers. Specialty Building Materials ("SBM") operating segment manufactures and markets sheet and liquid membrane systems that protect structures from water, air and vapor penetration, as well as fireproofing and other products designed to protect the building envelope. Operating Segment Data The following table presents information related to GCP's operating segments: Three Months Ended (In millions) 2020 2019 Net Sales Specialty Construction Chemicals $ 125.4 $ 131.7 Specialty Building Materials 91.3 94.4 Total net sales $ 216.7 $ 226.1 Segment Operating Income Specialty Construction Chemicals segment operating income $ 8.0 $ 7.9 Specialty Building Materials segment operating income 14.1 15.9 Total segment operating income $ 22.1 $ 23.8 Reconciliation of Operating Segment Data to Financial Statements Corporate expenses directly related to the operating segments are allocated to the segment's operating income. GCP excludes from the segments' operating income certain functional costs, certain impacts of foreign currency exchange, as well as certain corporate costs and other costs included in the table below. GCP also excludes from the segment's operating income certain ongoing defined benefit pension costs recognized during each reporting period, which include service and interest costs, the effect of expected returns on plan assets and amortization of prior service costs/credits. GCP believes that the exclusion of certain corporate costs and pension costs provides a better indicator of its operating segment performance since such costs are not managed at an operating segment level. Total segment operating income for the three months ended March 31, 2020 and 2019 is reconciled below to "Loss from continuing operations before income taxes" presented in the accompanying unaudited Consolidated Statements of Operations: Three Months Ended (In millions) 2020 2019 Total segment operating income $ 22.1 $ 23.8 Corporate costs (5.8) (9.9) Certain pension costs (1.3) (1.9) Shareholder activism and other related costs (1) (3.6) (2.5) COVID-19-related costs (2) (0.5) — Repositioning expenses (2.7) (5.4) Restructuring expenses and asset impairments (3.1) (0.6) Third-party and other acquisition-related costs (0.5) (0.1) Net income attributable to noncontrolling interests 0.1 0.2 Interest expense, net (5.1) (5.2) Loss from continuing operations before income taxes $ (0.4) $ (1.6) __________________________ (1) Shareholder activism and other related costs consist primarily of professional fees incurred in connection with the actions by certain of our shareholders seeking changes in the composition of our Board of Directors and nomination of candidates to stand for election at the 2019 and 2020 Annual Shareholders' Meetings, as well as other related matters. (2) COVID-19- related costs consist of fixed manufacturing costs and discretionary direct labor costs incurred during temporary closure of our manufacturing facilities as a direct result of the outbreak. Disaggregation of Total Net Sales The Company disaggregates its revenue from contracts with customers by operating segments, which it believes best depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. Geographic Area Data The table below presents information related to the geographic areas in which GCP operates. Three Months Ended (In millions) 2020 2019 Net Sales United States $ 113.0 $ 107.8 Canada and Other 6.2 5.7 Total North America 119.2 113.5 Europe Middle East Africa 44.3 46.4 Asia Pacific 40.3 50.7 Latin America 12.9 15.5 Total $ 216.7 $ 226.1 Sales are attributed to geographic areas based on customer location. With the exception of the U.S. presented in the table above, there were no individually significant countries with sales exceeding 10% of total sales during the three months ended March 31, 2020 and 2019. There were no customers that individually accounted for 10% or more of the Company's accounts receivable balance as of March 31, 2020 and December 31, 2019.

Discontinued Operations

Discontinued Operations	3 Months Ended
	Mar. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations On July 3, 2017, the Company completed the sale of Darex to Henkel for $1.06 billion in cash (the “Disposition”). The agreement with Henkel governing the Disposition (the “Amended Purchase Agreement”) provides for a series of delayed closings in certain non-U.S. jurisdictions for which sale proceeds were received on the July 3, 2017 closing date. The delayed closings implement the legal transfer of the Darex business in the delayed closing jurisdictions in accordance with local law. In January 2020, the final remaining delayed closing in Venezuela was completed which did not result in a gain or a loss recognized during the three months ended March 31, 2020. During the three months ended March 31, 2019, the Company completed the delayed closing in Indonesia and recorded an after-tax gain on sale of $7.2 million. Up to the time of the delayed closings, the results of the operations of the Darex business within the delayed close countries are reported as “(Loss) income from discontinued operations, net of income taxes” in the accompanying unaudited Consolidated Statements of Operations, with the exception of operations in Venezuela which were deconsolidated during 2017. As of December 31, 2019, an asset of $0.5 million related to operations in Venezuela and a liability of $0.5 million related to the deferred sale proceeds received on July 3, 2017 were recognized in "Non-current assets held for sale" and “Other current liabilities” in the Consolidated Balance Sheets. During the three months ended March 31, 2020, GCP derecognized the entire asset and liability amounts due to completing the delayed closing in Venezuela and recognizing the related sale proceeds. As of March 31, 2020, there were no remaining assets held for sale and no remaining liabilities for the consideration received on July 3, 2017 related to the delayed closings in connection with the sale of Darex. The following table includes a reconciliation of the gain on the sale of the Darex business related to delayed close entities recorded during the three months ended March 31, 2019: Three Months Ended March 31, (In millions) 2019 Net proceeds included in gain $ 12.7 Net assets derecognized (3.1) Gain recognized before income taxes 9.6 Tax effect of gain recognized (2.4) Gain recognized after income taxes $ 7.2 In connection with the Disposition and related gain, as noted above, the Company recorded tax expense of $2.4 million within discontinued operations during the three months ended March 31, 2019. In connection with the Disposition, the Company and Henkel entered into a Master Tolling Agreement, whereby Henkel will operate certain equipment at facilities being sold in order to manufacture and prepare for shipping certain products related to product lines that the Company continues to own. The Company and Henkel expect these services to be provided for a period of 35 months following the closing date. Under the Amended Purchase Agreement, GCP is required to indemnify Henkel for certain possible future tax liabilities. As of March 31, 2020 and December 31, 2019, GCP has recorded an indemnification payable of $0.9 million as a result of the Disposition. The following table sets forth the components of "(Loss) income from discontinued operations, net of income taxes" in the accompanying unaudited Consolidated Statements of Operations: Three Months Ended (In millions) 2020 2019 Net sales $ — $ — Cost of goods sold — — Gross profit — — Selling, general and administrative expenses 0.2 0.3 Restructuring expenses and asset impairments — 0.1 Gain on sale of business — (9.6) Other expenses, net 0.1 0.1 (Loss) income from discontinued operations before income taxes (0.3) 9.1 Provision for income taxes — (2.3) (Loss) income from discontinued operations, net of income taxes $ (0.3) $ 6.8

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting and Financial Reporting Policies (Policies)	3 Months Ended
	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited Consolidated Financial Statements are presented on a consolidated basis and include all of the accounts and operations of GCP and its majority-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. The financial statements reflect the financial position, results of operations and cash flows of GCP in accordance with generally accepted accounting principles in the United States ("GAAP") and with the instructions to Form 10-Q and Article 10 of SEC Regulation S-X for interim financial information. The interim financial statements presented herein are unaudited and should be read in conjunction with the audited Consolidated Financial Statements and notes thereto contained in GCP's Annual Report on Form 10-K filed with the SEC for the year ended December 31, 2019 (the "2019 Annual Report on Form 10-K"). The Consolidated Balance Sheet as of December 31, 2019 was derived from the audited annual consolidated financial statements as of the period then ended. Certain information and footnote disclosures typically included in GCP's annual consolidated financial statements have been condensed or omitted. The unaudited financial statements reflect all adjustments that, in the opinion of management, are necessary for a fair statement of the results of the interim periods presented. All such adjustments are of a normal recurring nature except for the impacts of adopting new accounting standards discussed below. The results of operations for the three months ended March 31, 2020 are not necessarily indicative of the results of operations for the year ending December 31, 2020.
Discontinued Operations	Discontinued Operations On July 3, 2017, the Company completed the sale of Darex to Henkel. The agreement with Henkel governing the Disposition (the “Amended Purchase Agreement”) provides for a series of delayed closings in certain non-U.S. jurisdictions. In conjunction with this transaction and applicable GAAP, the assets and liabilities related to Darex in the applicable delayed close countries have been reclassified and reflected as held for sale in the accompanying unaudited Consolidated Balance Sheets as of December 31, 2019, as discussed further in Note 19, "Discontinued Operations." Additionally, Darex results of operations and cash flows have been reclassified and reflected as "discontinued operations" in the accompanying unaudited Consolidated Statements of Operations and Consolidated Statements of Cash Flows for all periods presented.
Use of Estimates	Use of Estimates    The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the unaudited Consolidated Financial Statements, and the reported amounts of revenues and expenses for the periods presented. The Company assesses the estimates on an ongoing basis and records changes in estimates in the period they occur and become known. GCP's accounting measurements that are most affected by management's estimates of future events are disclosed in its 2019 Annual Report on Form 10-K. Actual results could differ from those estimates. On March 11, 2020, the World Health Organization declared the outbreak of the novel strain of coronavirus ("COVID-19") a global pandemic and recommended a number of restrictive measures to contain the spread. Many governments in the regions where GCP generates the majority of its revenue have adopted such policies, including social distancing and restrictions on construction activities deemed non-essential. GCP is closely monitoring the impact of the COVID-19 pandemic and working to manage the effects on its business globally as the situation continues to evolve. It is difficult to estimate with reasonable certainty at this time the duration and extent of the impact of the pandemic on the Company's business, financial position and results of operations. GCP has made certain estimates within its financial statements related to the impact of COVID-19, including allowance for credit losses related to the estimated amount of receivables not expected to be collected, future expected cash flows related to impairment assessments of goodwill and long-lived assets, incentive compensation accruals, contingent liabilities, and sales allowances related to volume rebates recognized based on anticipated sales volume. There may be changes to the Company's estimates in future periods due to uncertainty associated with the impact of the COVID-19 pandemic, the extent of which will depend largely on future developments, including new information which may emerge concerning the severity of the outbreak, as well as additional and unanticipated actions by government authorities to contain the outbreak or address its impact, among other things.
Income Tax	Income Tax As a global enterprise, GCP is subject to a complex array of tax regulations and needs to make assessments of applicable tax law and judgments in estimating its ultimate income tax liability. Income tax expense and income tax balances represent GCP’s federal, state and foreign income taxes as an independent company. GCP files a U.S. consolidated income tax return, along with foreign and state corporate income tax filings, as required. Please refer to Note 8, "Income Taxes," for details regarding estimates used in accounting for income tax matters including unrecognized tax benefits.
Foreign Currency Transactions and Translation	Foreign Currency Transactions and TranslationCertain transactions of the Company and its subsidiaries are denominated in currencies other than their functional currency. Foreign currency exchange gains (losses) generated from the settlement and remeasurement of these transactions are recognized in earnings and presented within “Other income, net” in the Company’s accompanying unaudited Consolidated Statements of Operations.GCP accounts for its operations in Argentina as a highly inflationary economy effective July 1, 2018. The functional currency of the Company's subsidiary operating in Argentina is the U.S. dollar, and all remeasurement adjustments after the effective date are reflected in GCP's results of operations in the accompanying unaudited Consolidated Statements of Operations. The losses related to the remeasurement of the monetary net assets are included in "Other income, net" in the accompanying unaudited Consolidated Statements of Operations and were $0.2 million and $0.4 million, respectively, during the three months ended March 31, 2020 and 2019. The Argentina subsidiary's net sales were not material to the Company's consolidated net sales during the three months ended March 31, 2020 and 2019, and its monetary net assets denominated in local currency were not material to GCP's consolidated total assets as of March 31, 2020 and December 31, 2019.
Reclassifications	Reclassifications
Recently Adopted and Recently Issued Accounting Standards	Recently Adopted Accounting Standards Credit Losses In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update ("ASU") 2016-13, Financial Instruments- Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which applies to most financial assets measured at amortized cost, as well as certain other instruments, including trade receivables, other receivables and other financial assets. Topic 326 replaces the incurred credit loss methodology with the expected credit loss model which requires recognition of an allowance against the assets’ amortized cost to reflect the amount expected to be collected. Expected credit losses are estimated over the contractual life of financial assets and recognized at inception. GCP has adopted Topic 326 effective January 1, 2020 using the modified retrospective approach. The adoption did not have a material impact on its financial position as of March 31, 2020 and results of operations and cash flows for the three months ended March 31, 2020. GCP did not recognize any cumulative effect adjustments to the retained earnings as of January 1, 2020 as a result of the adoption. The adoption of Topic 326 did not result in any significant modifications to the Company's policies related to recognizing allowance for trade receivables not expected to be collected which are disclosed in Note 1, "Basis of Presentation and Summary of Significant Accounting and Financial Reporting Policies," to the Company’s Consolidated Financial Statements included in the 2019 Annual Report on Form 10-K. Please refer to Note 3, "Accounts Receivable, Allowance for Credit Losses" for further information on the Company's policies and methodologies resulting from the adoption. Goodwill In January 2017, the FASB issued ASU 2017-04, Intangibles—Goodwill and Other (Topic 350) . The amendments in this update eliminate the requirement to calculate the implied fair value of goodwill (Step 2) when measuring a goodwill impairment loss which is based on the excess of a reporting unit’s carrying amount over its fair value. The standard is effective for the Company for its annual or any interim goodwill impairment tests to be performed beginning on or after January 1, 2020. GCP adopted the standard effective January 1, 2020. The adoption did not have a material impact on its financial position as of March 31, 2020 and results of operations and cash flows for the three months ended March 31, 2020. Other During the three months ended March 31, 2020, except as discussed above, there were no material changes to the Company's significant accounting and financial reporting policies from those reflected in the Annual Report on Form 10-K for the year ended December 31, 2019. For further information with regard to the Company’s Significant Accounting Policies, please refer to Note 1, "Basis of Presentation and Summary of Significant Accounting and Financial Reporting Policies," to the Company’s Consolidated Financial Statements included in the 2019 Annual Report on Form 10-K.

Revenue from Lessor Arrangeme_2

Revenue from Lessor Arrangements and Contracts with Customers (Tables)	3 Months Ended
	Mar. 31, 2020
Revenues [Abstract]
Components of Operating Lease and Service Revenue	The following table summarizes the revenue recognized for these sales arrangements for the three months ended March 31, 2020 and 2019 and distinguishes between the lease and the service revenue: Three Months Ended (In millions) 2020 2019 Lease revenue (1): Lease payments revenue $ 6.8 $ 6.4 Variable lease revenue 2.0 1.5 Total lease revenue $ 8.8 $ 7.9 Service revenue (2): Fixed fee revenue $ 0.1 $ — Variable fee revenue 1.3 1.0 Total service revenue $ 1.4 $ 1.0 Total revenue $ 10.2 $ 8.9 ________________________________ (1) Lease revenue consists of dispenser lease revenue, as well as an allocated portion of VERIFI ® fixed fees and variable slump management fees. Lease revenue is included within "Net Sales" in the accompanying unaudited Consolidated Statements of Operations. (2) Service revenue consists of an allocated portion of VERIFI ® fixed fees and variable slump management fees. Service revenue is included within "Net Sales" in the accompanying unaudited Consolidated Statements of Operations.

Accounts Receivable, Allowanc_2

Accounts Receivable, Allowance for Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2020
Credit Loss [Abstract]
Accounts Receivable, Allowance for Credit Loss	The following table summarizes the activity for the allowance for credit losses during the three months ended March 31, 2020 and 2019: (In millions) Three Months Ended March 31, 2020 2019 Beginning balance $ 7.5 $ 5.8 Provision for expected credit losses 0.4 0.5 Write offs (0.1) (0.5) Foreign currency translation adjustments (0.4) (0.1) Ending balance $ 7.4 $ 5.7

Inventories, net (Tables)

Inventories, net (Tables)	3 Months Ended
	Mar. 31, 2020
Inventory Disclosure [Abstract]
Schedule of Inventories	The following is a summary of inventories presented in the accompanying unaudited Consolidated Balance Sheets at March 31, 2020 and December 31, 2019: (In millions) March 31, December 31, Raw materials $ 44.3 $ 40.0 In process 4.3 4.0 Finished products and other 55.1 51.9 Total inventories, net $ 103.7 $ 95.9

Derivative Instruments (Tables)

Derivative Instruments (Tables)	3 Months Ended
	Mar. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Net Investment Hedges in Balance Sheets	The following table summarizes the fair value of the Company’s derivative instruments designated as net investment hedges as of March 31, 2020 and December 31, 2019: (In millions) March 31, 2020 December 31, 2019 Derivative assets (1) : Foreign exchange forward contracts $ 3.1 $ 1.1 __________________________ (1) The fair value of derivative instruments is measured based on expected future cash flows discounted at market interest rates using observable market inputs and classified as Level 2 within the fair value hierarchy. Fair value of derivative assets is recorded within "Other Current Assets" and "Other Assets" in the accompanying unaudited Consolidated Balance Sheets.
Net Investment Hedges in Consolidated Statements of Operations and Comprehensive Income	The following table summarizes the amounts recorded in the Company's accompanying unaudited Consolidated Statements of Operations and Consolidated Statements of Comprehensive (Loss) Income related to forward contracts designated as net investment hedges for the three months ended March 31, 2020: (In millions) Three Months Ended March 31, 2020 Other Income, net Cumulative Translation Adjustments (1) Gains on foreign exchange forward contracts $ 0.3 $ 1.3 __________________________ (1) The amount is presented net of tax impact of $0.4 million for the three months ended March 31, 2020.

Debt and Other Borrowings (Tabl

Debt and Other Borrowings (Tables)	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Components of Debt and Other Borrowings	The following is a summary of obligations under senior notes and other borrowings at March 31, 2020 and December 31, 2019: (In millions) March 31, December 31, 5.5% Senior Notes due in 2026, net of unamortized debt issuance costs of $3.7 million and $3.9 million, respectively, at March 31, 2020 and December 31, 2019 $ 346.3 $ 346.1 Revolving credit facility due 2023 (1) — — Other borrowings (2) 5.2 3.1 Total debt 351.5 349.2 Less: debt payable within one year 2.9 2.7 Debt payable after one year $ 348.6 $ 346.5 Weighted average interest rates on total debt obligations 5.5 % 5.5 % __________________________ (1) Represents borrowings under the Revolving Credit Facility with an aggregate available principal amount of $350.0 million as of March 31, 2020 and December 31, 2019. (2) Represents borrowings of $1.7 million and $1.8 million, respectively, at March 31, 2020 and December 31, 2019, under various lines of credit and other borrowings, primarily by non-U.S. subsidiaries, as well as $3.5 million and $1.3 million, respectively, of finance lease obligations.
Principal Maturities of Debt and Finance Lease Obligations Outstanding	The principal maturities of debt obligations outstanding, net of debt issuance costs, were as follows at March 31, 2020: (In millions) Amount Remainder of 2020 $ 2.9 2021 0.6 2022 0.6 2023 0.6 2024 0.5 Thereafter 346.3 Total debt $ 351.5
Carrying Amounts and Fair Values of Debt Instruments	The carrying amount and fair value of GCP's debt and other borrowings were as follows: March 31, 2020 December 31, 2019 (In millions) Carrying Amount Fair Value Carrying Amount Fair Value 5.5% Senior Notes due in 2026 $ 346.3 $ 328.7 $ 346.1 $ 366.3 Other borrowings 5.2 5.2 3.1 3.1 Total debt $ 351.5 $ 333.9 $ 349.2 $ 369.4

Lessee Arrangements (Tables)

Lessee Arrangements (Tables)	3 Months Ended
	Mar. 31, 2020
Leases [Abstract]
Lease Expense	The following table summarizes components of lease expense for the three months ended March 31, 2020 and 2019: Three Months Ended (In millions) 2020 2019 Operating lease expense $ 3.2 $ 3.3 Variable lease expense 1.1 1.2 Short-term lease expense 0.6 0.4 Total lease expense $ 4.9 $ 4.9 Three Months Ended (In millions) 2020 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3.2 $ 3.3 Operating lease right of use assets obtained in exchange for new lease obligations: Upon adoption of Topic 842 $ — $ 40.8 During the current period 7.7 1.0 Total $ 7.7 $ 41.8

Pension Plans and Other Postr_2

Pension Plans and Other Postretirement Benefit Plans (Tables)	3 Months Ended
	Mar. 31, 2020
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Net Funded Status of Over-Funded, Underfunded, and Unfunded Pension Plans	The following table presents the funded status of GCP's overfunded, underfunded and unfunded defined pension plans: (In millions) March 31, 2020 December 31, 2019 Overfunded defined benefit pension plans $ 23.6 $ 25.0 Underfunded defined benefit pension plans (41.5) (40.8) Unfunded defined benefit pension plans (26.4) (26.7) Total underfunded and unfunded defined benefit pension plans (67.9) (67.5) Pension liabilities included in other current liabilities (0.9) (1.2) Net funded status $ (45.2) $ (43.7)
Components of Net Periodic Benefit Cost (Income)	Components of Net Periodic Benefit Cost The components of GCP's net periodic benefit cost for the three months ended March 31, 2020 and 2019 are as follows: Three Months Ended 2020 2019 Pension Pension (In millions) U.S. Non-U.S. U.S. Non-U.S. Service cost $ 1.5 $ 0.1 $ 1.5 $ 0.7 Interest cost 1.3 — 1.4 1.4 Expected return on plan assets (1.6) — (1.6) (1.5) Net periodic benefit cost (1) $ 1.2 $ 0.1 $ 1.3 $ 0.6 ________________________________

Other Balance Sheet Informati_2

Other Balance Sheet Information (Tables)	3 Months Ended
	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Other Current Assets	The following is a summary of other current assets at March 31, 2020 and December 31, 2019: (In millions) March 31, December 31, Other Current Assets: Non-trade receivables $ 17.2 $ 22.1 Prepaid expenses and other current assets 15.7 13.4 Income taxes receivable 8.0 8.2 Total other current assets $ 40.9 $ 43.7
Schedule of Other Current Liabilities	The following is a summary of other current liabilities at March 31, 2020 and December 31, 2019: (In millions) March 31, December 31, Other Current Liabilities: Accrued customer volume rebates $ 17.1 $ 28.4 Accrued compensation (1) 11.8 16.0 Income taxes payable 8.7 10.4 Accrued interest 8.8 4.2 Pension liabilities 0.9 1.2 Restructuring liability 3.3 2.7 Other accrued liabilities 49.3 50.7 Total other current liabilities $ 99.9 $ 113.6 ________________________________ (1) Accrued compensation presented in the table above includes salaries and wages, as well as estimated current amounts due under the annual and long-term employee incentive programs.

Restructuring and Repositioni_2

Restructuring and Repositioning Expenses, Asset Impairments (Tables)	3 Months Ended
	Mar. 31, 2020
Restructuring and Related Activities [Abstract]
Schedule of Restructuring Expenses	The following restructuring expenses and asset impairment charges were incurred under the plans discussed above and other plans during each period: Three Months Ended (In millions) 2020 2019 Severance and other employee costs $ 1.9 $ 0.3 Asset impairments 1.0 0.2 Other associated costs 0.2 0.2 Total restructuring expenses and asset impairments $ 3.1 $ 0.7 Less: restructuring expenses and asset impairments reflected in discontinued operations — 0.1 Total restructuring expenses and asset impairments from continuing operations $ 3.1 $ 0.6 GCP incurred restructuring expenses and asset impairment charges related to its two operating segments and Corporate function as follows: Three Months Ended (In millions) 2020 2019 SCC $ 2.3 $ 0.6 SBM 0.8 — Corporate — — Total restructuring expenses and asset impairments from continuing operations $ 3.1 $ 0.6 Restructuring expenses and asset impairments reflected in discontinued operations — 0.1 Total restructuring expenses and asset impairments $ 3.1 $ 0.7
Schedule of Restructuring Liability	The following table summarizes the Company’s restructuring liability activity: 2019 Plan 2019 Phase 2 Plan 2018 Plan (2) 2017 Plan (2) Severance and other employee costs Other Costs Severance and other employee costs Severance and other employee costs Other Costs Severance and other employee costs Total Balance, December 31, 2019 $ 0.2 $ — $ 0.9 $ 1.0 $ 0.4 $ 0.2 $ 2.7 Expense (1) 0.2 0.2 1.7 — — — 2.1 Payments (0.1) — (0.6) (0.2) (0.3) (0.1) (1.3) Impact of foreign currency and other — — (0.1) (0.1) — (0.2) Balance, March 31, 2020 $ 0.3 $ 0.2 $ 2.0 $ 0.7 $ — $ 0.1 $ 3.3 ________________________________ (1) Asset impairment charges of $1.0 million attributable to the SCC segment for the three months ended March 31, 2020 are related to the 2019 Plan and 2019 Phase 2 Plan and recorded with a corresponding reduction to "Properties and equipment, net" in the accompanying unaudited Consolidated Balance Sheets. These expenses are not recorded with a corresponding reduction to the restructuring liability and therefore, are not included in the table above.

Other Comprehensive (Loss) In_2

Other Comprehensive (Loss) Income (Tables)	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Schedule of Pre-tax, Tax, and After-tax Components of Other Comprehensive Income (Loss)	The following tables present the pre-tax, tax, and after-tax components of GCP's other comprehensive (loss) income for the three months ended March 31, 2020 and 2019: Three Months Ended (In millions) Pre-Tax Amount Tax Expense After-Tax Amount Defined benefit pension and other postretirement plans $ 0.1 $ — $ 0.1 Currency translation adjustments (1) $ (33.4) $ (0.4) $ (33.8) Gain from hedging activities $ 0.2 $ — $ 0.2 Other comprehensive loss attributable to GCP shareholders $ (33.1) $ (0.4) $ (33.5) Three Months Ended (In millions) Pre-Tax Amount Tax After-Tax Amount Currency translation adjustments $ 3.3 $ — $ 3.3 Loss from hedging activities (0.1) — (0.1) Other comprehensive income attributable to GCP shareholders $ 3.2 $ — $ 3.2 __________________________ (1) Currency translation adjustments related to the net investment hedge are presented net of income taxes, as discussed in Note 5, "Derivative Instruments."
Schedule of Changes of Accumulated Other Comprehensive Income (Loss), Net of Tax	The following tables present the changes in accumulated other comprehensive loss, net of tax, for the three months ended March 31, 2020 and 2019: (In millions) Defined Benefit Pension and Other Postretirement Plans Currency Translation Adjustments Hedging Activities Total Balance, December 31, 2019 $ (2.7) $ (114.2) $ (0.1) $ (117.0) Current period other comprehensive income (loss) 0.1 (33.8) 0.2 (33.5) Balance, March 31, 2020 $ (2.6) $ (148.0) $ 0.1 $ (150.5) (In millions) Defined Benefit Pension and Other Postretirement Plans Currency Translation Adjustments Hedging Activities Total Balance, December 31, 2018 $ (2.2) $ (117.8) $ — $ (120.0) Current period other comprehensive income (loss) — 3.3 (0.1) 3.2 Balance, March 31, 2019 $ (2.2) $ (114.5) $ (0.1) $ (116.8)

Stock Incentive Plans (Tables)

Stock Incentive Plans (Tables)	3 Months Ended
	Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Summary of Assumptions for Estimating the Fair Value of Stock Options	The following assumptions were utilized in the Black-Scholes option pricing model for estimating the fair value of GCP's stock options granted during the three months ended March 31, 2019: Three Months Ended March 31, Assumptions used to calculate expense for stock options: 2019 Risk-free interest rate 2.44 - 2.64% Average life of options (years) 5.5 - 6.5 Volatility 28.02 - 28.59% Dividend yield — Weighted average fair value per stock option $8.70
Summary of Stock Option Activity	The following table sets forth information relating to stock options denominated in GCP stock during the three months ended March 31, 2020: Stock Option Activity Number Of Weighted Weighted Aggregated Outstanding, December 31, 2019 1,284 22.66 3.18 $ 3,171 Options exercised (20) 19.23 Options forfeited/expired/canceled (18) 28.39 Options granted — — Outstanding, March 31, 2020 1,246 22.62 3.02 $ 249 Exercisable, March 31, 2020 1,073 21.87 2.59 $ 249 Vested and expected to vest, March 31, 2020 1,234 22.58 3.00 $ 249
Summary of Restricted Stock Units Award Activity	The following table sets forth the RSU activity for the three months ended March 31, 2020: RSU Activity Number Of Weighted Outstanding, December 31, 2019 156 $ 27.33 RSUs settled (43) 28.02 RSUs forfeited — — RSUs granted 190 21.11 RSUs outstanding, March 31, 2020 303 $ 23.25 Expected to vest as of March 31, 2020 280 $ 23.32
Schedule of Assumptions for Estimating the Fair Value of PBUs	The following table summarizes the assumptions used in the Monte Carlo simulations for estimating the grant date fair values of PBUs granted during the three months ended March 31, 2020 and 2019: Three Months Ended March 31, Assumptions used to calculate expense for PBUs: 2020 2019 Expected Term (Remaining Performance Period) 2.85 2.86 Expected volatility 29.85% 28.46% Risk-free interest rate 1.21% 2.48% Expected dividends — — Correlation coefficient 53.43% 54.81% Median correlation coefficient of constituents 54.01% 57.09%
Summary of Performance-Based Units Activity	The following table sets forth the PBU activity for the three months ended March 31, 2020: PBU Activity Number Of Weighted Outstanding, December 31, 2019 382 $ 29.51 PBU's settled — — PBU's forfeited (111) 28.22 PBU's granted 146 22.41 Outstanding, March 31, 2020 417 $ 27.36

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Reconciliation of the Numerators and Denominators Used in Calculating Basic and Diluted Earnings Per Share	The following table sets forth a reconciliation of the numerators and denominators used in calculating basic and diluted earnings (loss) per share: Three Months Ended (In millions, except per share amounts) 2020 2019 Numerators Income from continuing operations attributable to GCP shareholders $ 1.4 $ 14.6 (Loss) income from discontinued operations, net of income taxes (0.3) 6.8 Net income attributable to GCP shareholders $ 1.1 $ 21.4 Denominators Weighted average common shares—basic calculation 72.9 72.3 Dilutive effect of employee stock awards (2) 0.1 0.5 Weighted average common shares—diluted calculation 73.0 72.8 Basic earnings (loss) per share: Income from continuing operations attributable to GCP shareholders $ 0.02 $ 0.20 (Loss) income from discontinued operations, net of income taxes $ — $ 0.09 Net income attributable to GCP shareholders (1) $ 0.02 $ 0.30 Diluted earnings (loss) per share: (2) Income from continuing operations attributable to GCP shareholders $ 0.02 $ 0.20 (Loss) income from discontinued operations, net of income taxes $ — $ 0.09 Net income attributable to GCP shareholders (1) $ 0.02 $ 0.29 ________________________________ (1) Amounts may not sum due to rounding. (2) Dilutive effect is only applicable to the periods during which GCP generated net income from continuing operations.

Operating Segment and Geograp_2

Operating Segment and Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Schedule of Operating Segment Data	The following table presents information related to GCP's operating segments: Three Months Ended (In millions) 2020 2019 Net Sales Specialty Construction Chemicals $ 125.4 $ 131.7 Specialty Building Materials 91.3 94.4 Total net sales $ 216.7 $ 226.1 Segment Operating Income Specialty Construction Chemicals segment operating income $ 8.0 $ 7.9 Specialty Building Materials segment operating income 14.1 15.9 Total segment operating income $ 22.1 $ 23.8
Reconciliation of Operating Segment Data to Financial Statements	Total segment operating income for the three months ended March 31, 2020 and 2019 is reconciled below to "Loss from continuing operations before income taxes" presented in the accompanying unaudited Consolidated Statements of Operations: Three Months Ended (In millions) 2020 2019 Total segment operating income $ 22.1 $ 23.8 Corporate costs (5.8) (9.9) Certain pension costs (1.3) (1.9) Shareholder activism and other related costs (1) (3.6) (2.5) COVID-19-related costs (2) (0.5) — Repositioning expenses (2.7) (5.4) Restructuring expenses and asset impairments (3.1) (0.6) Third-party and other acquisition-related costs (0.5) (0.1) Net income attributable to noncontrolling interests 0.1 0.2 Interest expense, net (5.1) (5.2) Loss from continuing operations before income taxes $ (0.4) $ (1.6) __________________________ (1) Shareholder activism and other related costs consist primarily of professional fees incurred in connection with the actions by certain of our shareholders seeking changes in the composition of our Board of Directors and nomination of candidates to stand for election at the 2019 and 2020 Annual Shareholders' Meetings, as well as other related matters. (2) COVID-19- related costs consist of fixed manufacturing costs and discretionary direct labor costs incurred during temporary closure of our manufacturing facilities as a direct result of the outbreak.
Net Sales by Geographic Area	The table below presents information related to the geographic areas in which GCP operates. Three Months Ended (In millions) 2020 2019 Net Sales United States $ 113.0 $ 107.8 Canada and Other 6.2 5.7 Total North America 119.2 113.5 Europe Middle East Africa 44.3 46.4 Asia Pacific 40.3 50.7 Latin America 12.9 15.5 Total $ 216.7 $ 226.1

Discontinued Operations (Tables

Discontinued Operations (Tables)	3 Months Ended
	Mar. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Reconciliation of Gain on Disposal	The following table includes a reconciliation of the gain on the sale of the Darex business related to delayed close entities recorded during the three months ended March 31, 2019: Three Months Ended March 31, (In millions) 2019 Net proceeds included in gain $ 12.7 Net assets derecognized (3.1) Gain recognized before income taxes 9.6 Tax effect of gain recognized (2.4) Gain recognized after income taxes $ 7.2
Financial Results and Other Effects Related to Discontinued Operations	The following table sets forth the components of "(Loss) income from discontinued operations, net of income taxes" in the accompanying unaudited Consolidated Statements of Operations: Three Months Ended (In millions) 2020 2019 Net sales $ — $ — Cost of goods sold — — Gross profit — — Selling, general and administrative expenses 0.2 0.3 Restructuring expenses and asset impairments — 0.1 Gain on sale of business — (9.6) Other expenses, net 0.1 0.1 (Loss) income from discontinued operations before income taxes (0.3) 9.1 Provision for income taxes — (2.3) (Loss) income from discontinued operations, net of income taxes $ (0.3) $ 6.8

Basis of Presentation and Sum_3

Basis of Presentation and Summary of Significant Accounting and Financial Reporting Policies (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020USD ($)segment	Mar. 31, 2019USD ($)	Jul. 03, 2017USD ($)
Class of Stock [Line Items]
Number of operating segments | segment	2
Other income, net
Class of Stock [Line Items]
Net foreign currency transaction and remeasurement losses		$ 0.3
Loss recognized related to remeasurement of assets	$ 0.2	$ 0.4
Disposed of by Sale | Darex
Class of Stock [Line Items]
Consideration received			$ 1,060

Revenue from Lessor Arrangeme_3

Revenue from Lessor Arrangements and Contracts with Customers - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Revenues [Abstract]
Lease component, lease term (or less)	30 days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 160.5	$ 183.7
Revenue, remaining performance obligation	$ 6.7
Revenue, remaining performance obligation, expected timing of satisfaction	one to five years
Trade accounts receivable, lease revenue
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 5.3	$ 5.6

Revenue from Lessor Arrangeme_4

Revenue from Lessor Arrangements and Contracts with Customers - Operating Lease and Service Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Lease revenue:
Total revenue	$ 216.7	$ 226.1
VERIFI Sales Arrangements
Lease revenue:
Lease payments revenue	6.8	6.4
Variable lease revenue	2	1.5
Total lease revenue	8.8	7.9
Total service revenue	1.4	1
Total revenue	10.2	8.9
VERIFI Sales Arrangements | Fixed fee revenue
Lease revenue:
Total service revenue	0.1	0
VERIFI Sales Arrangements | Variable fee revenue
Lease revenue:
Total service revenue	$ 1.3	$ 1

Accounts Receivable, Allowanc_3

Accounts Receivable, Allowance for Credit Losses (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 7.5	$ 5.8
Provision for expected credit losses	0.4	0.5
Write offs	(0.1)	(0.5)
Foreign currency translation adjustments	(0.4)	(0.1)
Ending balance	$ 7.4	$ 5.7

Inventories, net (Details)

Inventories, net (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Inventory [Line Items]
Raw materials	$ 44.3	$ 40
In process	4.3	4
Finished products and other	55.1	51.9
Total inventories, net	103.7	95.9
Finished Products Purchased
Inventory [Line Items]
Finished products and other	$ 9.5	$ 10.6

Derivative Instruments - Narrat

Derivative Instruments - Narrative (Details)	3 Months Ended
	Mar. 31, 2020EUR (€)derivative_instrument
Forward exchange forward contracts
Derivative [Line Items]
Number of instruments entered | derivative_instrument	4
Aggregate notional amount	€ 40,000,000
Forward contract maturing 2020
Derivative [Line Items]
Aggregate notional amount	10,000,000
Forward contract maturing 2021
Derivative [Line Items]
Aggregate notional amount	10,000,000
Forward contract maturing 2022
Derivative [Line Items]
Aggregate notional amount	10,000,000
Forward contract maturing 2023
Derivative [Line Items]
Aggregate notional amount	€ 10,000,000

Derivative Instruments - Net In

Derivative Instruments - Net Investment Hedges in Balance Sheets (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Forward exchange forward contracts
Derivative [Line Items]
Derivative asset	$ 3.1	$ 1.1

Derivative Instruments - Net _2

Derivative Instruments - Net Investment Hedges in Statements of Operations and Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Derivative [Line Items]
Gains (losses) on foreign exchange forward contracts - cumulative translation adjustments, net of tax benefit	$ (33.8)	$ 3.3
Forward exchange forward contracts
Derivative [Line Items]
Gains (losses) on foreign exchange forward contracts - other income, net	0.3
Gains (losses) on foreign exchange forward contracts - cumulative translation adjustments, net of tax benefit	1.3
Gains (losses) on foreign exchange forward contracts - cumulative translation adjustments, tax liability	$ 0.4

Debt and Other Borrowings - Com

Debt and Other Borrowings - Components of Debt (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total debt	$ 351,500,000	$ 349,200,000
Less: debt payable within one year	2,900,000	2,700,000
Debt payable after one year	$ 348,600,000	$ 346,500,000
Weighted average interest rates on total debt obligations	5.50%	5.50%
Finance lease obligations	$ 3,500,000	$ 1,300,000
Senior Notes | 5.5% Senior Notes due in 2026
Debt Instrument [Line Items]
Total debt	$ 346,300,000	346,100,000
Stated interest rate	5.50%
Unamortized debt issuance cost	$ 3,700,000	3,900,000
Line of credit | Revolving credit facility
Debt Instrument [Line Items]
Total debt	0	0
Unamortized debt issuance cost	2,900,000	3,100,000
Aggregate available principal amount	350,000,000	350,000,000
Other borrowings
Debt Instrument [Line Items]
Total debt	5,200,000	3,100,000
Lines of credit and other borrowings
Debt Instrument [Line Items]
Total debt	$ 1,700,000	$ 1,800,000

Debt and Other Borrowings - Pri

Debt and Other Borrowings - Principal Maturities of Debt Outstanding (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Remainder of 2020	$ 2.9
2021	0.6
2022	0.6
2023	0.6
2024	0.5
Thereafter	346.3
Total debt	$ 351.5	$ 349.2

Debt and Other Borrowings - Nar

Debt and Other Borrowings - Narrative (Details) - USD ($)	Apr. 15, 2020	Mar. 31, 2020	Dec. 31, 2019
Senior Notes | 5.5% Senior Notes due in 2026
Debt Instrument [Line Items]
Stated interest rate		5.50%
Aggregate principal amount		$ 350,000,000
Unamortized debt issuance cost		3,700,000	$ 3,900,000
Line of credit
Debt Instrument [Line Items]
Available credit		347,800,000	344,100,000
Line of credit | Revolving credit facility
Debt Instrument [Line Items]
Outstanding borrowings		0	0
Interest payments		0
Unamortized debt issuance cost		$ 2,900,000	3,100,000
Line of credit | Revolving credit facility | Base Rate | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		0.50%
Line of credit | Revolving credit facility | Base Rate | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		1.00%
Line of credit | Revolving credit facility | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		1.50%
Line of credit | Revolving credit facility | LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		2.00%
Line of credit | Letter of credit
Debt Instrument [Line Items]
Outstanding borrowings		$ 2,200,000	$ 5,900,000
Subsequent event | Senior Notes | 5.5% Senior Notes due in 2026
Debt Instrument [Line Items]
Interest payment	$ 9,600,000

Debt and Other Borrowings - Car

Debt and Other Borrowings - Carrying Amounts and Fair Values of Debt Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
5.5% Senior Notes due in 2026 | Senior Notes
Debt Instrument [Line Items]
Stated interest rate	5.50%
Carrying Amount
Debt Instrument [Line Items]
Long-term debt, fair value	$ 351.5	$ 349.2
Carrying Amount | Other borrowings
Debt Instrument [Line Items]
Long-term debt, fair value	5.2	3.1
Carrying Amount | 5.5% Senior Notes due in 2026 | Senior Notes
Debt Instrument [Line Items]
Long-term debt, fair value	346.3	346.1
Fair Value
Debt Instrument [Line Items]
Long-term debt, fair value	333.9	369.4
Fair Value | Other borrowings
Debt Instrument [Line Items]
Long-term debt, fair value	5.2	3.1
Fair Value | 5.5% Senior Notes due in 2026 | Senior Notes
Debt Instrument [Line Items]
Long-term debt, fair value	$ 328.7	$ 366.3

Lessee Arrangements - Lease Exp

Lessee Arrangements - Lease Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Leases [Abstract]
Operating lease expense	$ 3.2	$ 3.3
Variable lease expense	1.1	1.2
Short-term lease expense	0.6	0.4
Total lease expense	$ 4.9	$ 4.9

Lessee Arrangements - Supplemen

Lessee Arrangements - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	Jan. 01, 2019	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases		$ 3.2	$ 3.3
Operating lease right of use assets obtained in exchange for new lease obligations:		$ 7.7	$ 41.8	$ 1
ASU 2016-02 - Topic 842
Cash paid for amounts included in the measurement of lease liabilities:
Operating lease right of use assets obtained in exchange for new lease obligations:	$ 40.8

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ (1.9)	$ (16.4)
Effective tax rate	475.00%	1025.00%
Income tax benefit, before CARES Act impacts	$ 2.8
Increase in unrecognized tax benefits	0.4
Income tax provision (benefit) - change in valuation allowance	0.6	$ 0.4
Transition Tax liability (release)	12.4		$ (20.2)	$ 20.2
Net expenses due to 2017 Tax Act			$ 3.6
Increase in income tax receivable	1.2
Decrease in deferred tax assets	10.8
Transition Tax obligation	$ 29
Transition Tax, tax benefit from the release of an uncertain tax position		$ 20.2

Pension Plans and Other Postr_3

Pension Plans and Other Postretirement Benefit Plans - Net Funded Status of Over-Funded, Underfunded, and Unfunded Pension Plans (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Pension plans and other postretirement benefit plans
Overfunded defined benefit pension plans	$ 23.6	$ 25
Underfunded and unfunded defined benefit pension plans	(67.9)	(67.5)
Pension Plans
Pension plans and other postretirement benefit plans
Overfunded defined benefit pension plans	23.6	25
Underfunded and unfunded defined benefit pension plans	(67.9)	(67.5)
Pension liabilities included in other current liabilities	(0.9)	(1.2)
Net funded status	(45.2)	(43.7)
Underfunded defined benefit pension plans | Pension Plans
Pension plans and other postretirement benefit plans
Underfunded and unfunded defined benefit pension plans	(41.5)	(40.8)
Unfunded defined benefit pension plans | Pension Plans
Pension plans and other postretirement benefit plans
Underfunded and unfunded defined benefit pension plans	$ (26.4)	$ (26.7)

Pension Plans and Other Postr_4

Pension Plans and Other Postretirement Benefit Plans - Components of Net Periodic Benefit Cost (Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
United States
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 1.5	$ 1.5
Interest cost	1.3	1.4
Expected return on plan assets	(1.6)	(1.6)
Net periodic benefit cost (income)	1.2	1.3
Non-U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	0.1	0.7
Interest cost	0	1.4
Expected return on plan assets	0	(1.5)
Net periodic benefit cost (income)	$ 0.1	$ 0.6

Pension Plans and Other Postr_5

Pension Plans and Other Postretirement Benefit Plans - Narrative (Details) - USD ($)	Jan. 01, 2018	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Pension plans and other postretirement benefit plans
Accumulated other comprehensive income, tax impact		$ 200,000		$ 200,000
Defined contribution plan, percentage that the employer contributes of employee contributions under 401(k) plan	100.00%	100.00%
Defined contribution plan, maximum percentage of employee compensation match by employer to defined contribution plan		6.00%
Defined contribution plan, additional maximum percentage of employee compensation match by employer to defined contribution plan	2.00%
Defined contribution plan, vesting requirement	3 years
Defined contribution plan, costs		$ 1,300,000	$ 1,300,000
Non-U.S.
Pension plans and other postretirement benefit plans
Defined benefit plan expense		100,000	700,000
United States
Pension plans and other postretirement benefit plans
Defined benefit plan expense		1,500,000	1,500,000
Postretirement Health Care
Pension plans and other postretirement benefit plans
Long-term liability		2,000,000		2,200,000
Accumulated other comprehensive income		600,000		$ 700,000
Pension Plans | Non-U.S.
Pension plans and other postretirement benefit plans
Employer contributions		500,000	900,000
Pension Plans | United States
Pension plans and other postretirement benefit plans
Employer contributions		$ 100,000	$ 0

Other Balance Sheet Informati_3

Other Balance Sheet Information - Other Current Assets (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Other Current Assets:
Non-trade receivables	$ 17.2	$ 22.1
Prepaid expenses and other current assets	15.7	13.4
Income taxes receivable	8	8.2
Total other current assets	$ 40.9	$ 43.7

Other Balance Sheet Informati_4

Other Balance Sheet Information - Other Current Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Other Current Liabilities:
Accrued customer volume rebates	$ 17.1	$ 28.4
Accrued compensation	11.8	16
Income taxes payable	8.7	10.4
Accrued interest	8.8	4.2
Pension liabilities	0.9	1.2
Restructuring liability	3.3	2.7
Other accrued liabilities	49.3	50.7
Total other current liabilities	$ 99.9	$ 113.6

Other Balance Sheet Informati_5

Other Balance Sheet Information - Additional Information (Details) - USD ($) $ in Millions	May 04, 2018	Mar. 31, 2020
RIW Limited | Clydebridge Holdings
Business Acquisition [Line Items]
Percentage of stock acquired	100.00%
Clydebridge Holdings
Business Acquisition [Line Items]
Percentage of stock acquired	100.00%
Consideration transferred	$ 29.5
Cash acquired	10
Payments to acquire businesses	29.8
Working capital adjustments	$ 0.3
Escrow released		$ 1.3

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Mar. 31, 2020
Reduction in taxes
Loss Contingencies [Line Items]
Gain related to income tax settlement, net	$ 1.3
Legal fees and other charges related to tax settlement	0.4
Amended Credit Agreement | Standby Letter of Credit
Loss Contingencies [Line Items]
Gross financial assurances issued and outstanding	$ 5.9	$ 5.1

Stockholders' Equity (Details)

Stockholders' Equity (Details)	Mar. 13, 2020	Mar. 15, 2019purchase_right$ / sharesshares	Mar. 31, 2020$ / sharesshares	Dec. 31, 2019$ / sharesshares
Equity [Abstract]
Common stock dividend, number of preferred share purchase rights for each share of common stock | purchase_right		1
Common stock, par value (in usd per share)			$ 0.01	$ 0.01
Preferred share purchase right, period after acquisition announcement after which rights become exercisable		10 days
Preferred share purchase right, minimum beneficial ownership percentage change for rights to become exercisable	20.00%	15.00%
Preferred share purchase right, minimum beneficial ownership percentage for grandfathered treatment	20.00%	15.00%
Preferred share purchase right, minimum ownership percentage at which existing rights become exercisable	0.001%	0.001%
Class of Stock [Line Items]
Preferred stock, authorized (in shares) | shares			50,000,000
Preferred stock, par value (in usd per share)			$ 0.01
Series A
Class of Stock [Line Items]
Preferred stock, authorized (in shares) | shares		10,000,000	10,000,000	10,000,000
Preferred stock, par value (in usd per share)		$ 0.01	$ 0.01	$ 0.01

Restructuring and Repositioni_3

Restructuring and Repositioning Expenses, Asset Impairments - Narrative (Details) $ in Millions	Jul. 31, 2019USD ($)	Mar. 31, 2020USD ($)segment	Mar. 31, 2019USD ($)	Mar. 31, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Feb. 22, 2019USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		$ 2.1
Cash payments		$ 1.3
Number of operating segments | segment		2
Restructuring liability		$ 3.3		$ 3.3	$ 3.3	$ 2.7
2019 Plan | Severance and other employee costs
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		0.2
Cash payments		0.1
Restructuring liability		0.3		0.3	0.3	0.2
2019 Plan | Other associated costs
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		0.2
Cash payments		0
Restructuring liability		0.2		0.2	0.2	0
2019 Plan | Minimum
Restructuring Cost and Reserve [Line Items]
Estimated expenses							$ 15
2019 Plan | Maximum
Restructuring Cost and Reserve [Line Items]
Estimated expenses							20
2019 Plan, restructuring activities
Restructuring Cost and Reserve [Line Items]
Costs incurred to date		2		2	2
2019 Plan, restructuring activities | SCC
Restructuring Cost and Reserve [Line Items]
Costs incurred to date		1.6		1.6	1.6
2019 Plan, restructuring activities | SBM
Restructuring Cost and Reserve [Line Items]
Costs incurred to date		0.4		0.4	0.4
2019 Plan, restructuring activities | Severance and other employee costs
Restructuring Cost and Reserve [Line Items]
Costs incurred to date		0.9		0.9	0.9
2019 Plan, restructuring activities | Other associated costs
Restructuring Cost and Reserve [Line Items]
Costs incurred to date		0.2		0.2	0.2
2019 Plan, restructuring activities | Asset impairments
Restructuring Cost and Reserve [Line Items]
Estimated expenses							1
Costs incurred to date		0.9		0.9	0.9
2019 Plan, restructuring activities | Minimum
Restructuring Cost and Reserve [Line Items]
Estimated expenses							4
2019 Plan, restructuring activities | Minimum | Severance and other employee costs
Restructuring Cost and Reserve [Line Items]
Estimated expenses							2
2019 Plan, restructuring activities | Minimum | Other associated costs
Restructuring Cost and Reserve [Line Items]
Estimated expenses							1
2019 Plan, restructuring activities | Maximum
Restructuring Cost and Reserve [Line Items]
Estimated expenses							7
2019 Plan, restructuring activities | Maximum | Severance and other employee costs
Restructuring Cost and Reserve [Line Items]
Estimated expenses							3
2019 Plan, restructuring activities | Maximum | Other associated costs
Restructuring Cost and Reserve [Line Items]
Estimated expenses							3
2019 Plan, repositioning activities
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		1.4	$ 2
Cash payments					9.8
2019 Plan, repositioning activities | Capital expenditures
Restructuring Cost and Reserve [Line Items]
Costs incurred to date		1.2		1.2	1.2
Cash payments		3.6			0.9
2019 Plan, repositioning activities | Minimum
Restructuring Cost and Reserve [Line Items]
Estimated expenses							11
2019 Plan, repositioning activities | Minimum | Capital expenditures
Restructuring Cost and Reserve [Line Items]
Estimated expenses							2
2019 Plan, repositioning activities | Maximum
Restructuring Cost and Reserve [Line Items]
Estimated expenses							13
2019 Plan, repositioning activities | Maximum | Capital expenditures
Restructuring Cost and Reserve [Line Items]
Estimated expenses							$ 3
2019 Phase 2 Plan
Restructuring Cost and Reserve [Line Items]
Cash payments		1.6		2.6
2019 Phase 2 Plan | Capital expenditures
Restructuring Cost and Reserve [Line Items]
Cash payments				0.1
2019 Phase 2 Plan | Severance and other employee costs
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		1.7
Cash payments		0.6
Decrease in expected charges, due to change in estimate		5
Restructuring liability		2		2	2	$ 0.9
2019 Phase 2 Plan | Minimum
Restructuring Cost and Reserve [Line Items]
Estimated expenses	$ 25
2019 Phase 2 Plan | Maximum
Restructuring Cost and Reserve [Line Items]
Estimated expenses	30
2019 Phase 2 Plan, restructuring activities
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		4.9
2019 Phase 2 Plan, restructuring activities | SCC
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		2.9
2019 Phase 2 Plan, restructuring activities | SBM
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		2
2019 Phase 2 Plan, restructuring activities | Severance and other employee costs
Restructuring Cost and Reserve [Line Items]
Costs incurred to date		4.8		4.8	4.8
2019 Phase 2 Plan, restructuring activities | Asset impairments
Restructuring Cost and Reserve [Line Items]
Costs incurred to date		0.1		0.1	0.1
2019 Phase 2 Plan, restructuring activities | Minimum
Restructuring Cost and Reserve [Line Items]
Estimated expenses	$ 18
Number of positions eliminated as a percent of total employees	8.00%
2019 Phase 2 Plan, restructuring activities | Minimum | Severance and other employee costs
Restructuring Cost and Reserve [Line Items]
Estimated expenses	$ 14
2019 Phase 2 Plan, restructuring activities | Minimum | Other associated costs
Restructuring Cost and Reserve [Line Items]
Estimated expenses	4
2019 Phase 2 Plan, restructuring activities | Maximum
Restructuring Cost and Reserve [Line Items]
Estimated expenses	$ 22
Number of positions eliminated as a percent of total employees	10.00%
2019 Phase 2 Plan, restructuring activities | Maximum | Severance and other employee costs
Restructuring Cost and Reserve [Line Items]
Estimated expenses	$ 17
2019 Phase 2 Plan, restructuring activities | Maximum | Other associated costs
Restructuring Cost and Reserve [Line Items]
Estimated expenses	5
2019 Phase 2 Plan, repositioning activities
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		1.2
2019 Phase 2 Plan, repositioning activities | Capital expenditures
Restructuring Cost and Reserve [Line Items]
Estimated expenses	2
Costs incurred to date		$ 0.2		$ 0.2	$ 0.2
2019 Phase 2 Plan, repositioning activities | Minimum
Restructuring Cost and Reserve [Line Items]
Estimated expenses	7
2019 Phase 2 Plan, repositioning activities | Maximum
Restructuring Cost and Reserve [Line Items]
Estimated expenses	$ 8

Restructuring and Repositioni_4

Restructuring and Repositioning Expenses, Asset Impairments - Restructuring Expenses (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Restructuring and Related Activities [Abstract]
Severance and other employee costs	$ 1.9	$ 0.3
Asset impairments	1	0.2
Other associated costs	0.2	0.2
Total restructuring expenses and asset impairments	3.1	0.7
Less: restructuring expenses and asset impairments reflected in discontinued operations	0	0.1
Total restructuring expenses and asset impairments from continuing operations	$ 3.1	$ 0.6

Restructuring and Repositioni_5

Restructuring and Repositioning Expenses, Asset Impairments - Restructuring Costs by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Restructuring Cost and Reserve [Line Items]
Total restructuring expenses and asset impairments from continuing operations	$ 3.1	$ 0.6
Restructuring expenses and asset impairments reflected in discontinued operations	0	0.1
Total restructuring expenses and asset impairments	3.1	0.7
Operating Segments | SCC
Restructuring Cost and Reserve [Line Items]
Total restructuring expenses and asset impairments from continuing operations	2.3	0.6
Operating Segments | SBM
Restructuring Cost and Reserve [Line Items]
Total restructuring expenses and asset impairments from continuing operations	0.8	0
Corporate
Restructuring Cost and Reserve [Line Items]
Total restructuring expenses and asset impairments from continuing operations	$ 0	$ 0

Restructuring and Repositioni_6

Restructuring and Repositioning Expenses, Asset Impairments - Restructuring Liability (Details) - USD ($) $ in Millions	3 Months Ended		8 Months Ended	27 Months Ended	39 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2020	Mar. 31, 2020
Restructuring Reserve [Roll Forward]
Beginning balance	$ 2.7
Expense	2.1
Payments	(1.3)
Impact of foreign currency and other	(0.2)
Ending balance	3.3		$ 3.3	$ 3.3	$ 3.3
Asset impairments	1	$ 0.2
2019 Plan | Severance and other employee costs
Restructuring Reserve [Roll Forward]
Beginning balance	0.2
Expense	0.2
Payments	(0.1)
Impact of foreign currency and other	0
Ending balance	0.3		0.3	0.3	0.3
2019 Plan | Other Costs
Restructuring Reserve [Roll Forward]
Beginning balance	0
Expense	0.2
Payments	0
Impact of foreign currency and other	0
Ending balance	0.2		0.2	0.2	0.2
2019 Phase 2 Plan
Restructuring Reserve [Roll Forward]
Payments	(1.6)		(2.6)
2019 Phase 2 Plan | Severance and other employee costs
Restructuring Reserve [Roll Forward]
Beginning balance	0.9
Expense	1.7
Payments	(0.6)
Impact of foreign currency and other
Ending balance	2		2	2	2
2019 Phase 2 Plan | Capital expenditures
Restructuring Reserve [Roll Forward]
Payments			(0.1)
2018 Plan
Restructuring Reserve [Roll Forward]
Payments	(0.1)			(11.6)
2018 Plan | Severance and other employee costs
Restructuring Reserve [Roll Forward]
Beginning balance	1
Expense	0
Payments	(0.2)
Impact of foreign currency and other	(0.1)
Ending balance	0.7		0.7	0.7	0.7
2018 Plan | Other Costs
Restructuring Reserve [Roll Forward]
Beginning balance	0.4
Expense	0
Payments	(0.3)
Impact of foreign currency and other	(0.1)
Ending balance	0		0	0	0
2018 Plan | Capital expenditures
Restructuring Reserve [Roll Forward]
Payments				(0.9)
2017 Plan
Restructuring Reserve [Roll Forward]
Payments	(0.7)				(21.5)
2017 Plan | Severance and other employee costs
Restructuring Reserve [Roll Forward]
Beginning balance	0.2
Expense	0
Payments	(0.1)
Impact of foreign currency and other	0
Ending balance	$ 0.1		$ 0.1	$ 0.1	0.1
2017 Plan | Capital expenditures
Restructuring Reserve [Roll Forward]
Payments					$ (11.9)

Other Comprehensive (Loss) In_3

Other Comprehensive (Loss) Income - Components of OCI (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive (loss) income, pre-tax amount	$ (33.1)	$ 3.2
Other comprehensive (loss) income, tax	(0.4)	0
Total other comprehensive (loss) income	(33.5)	3.2
Defined benefit pension and other postretirement plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive (loss) income, pre-tax amount	0.1
Other comprehensive (loss) income, tax	0
Total other comprehensive (loss) income	0.1	0
Currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive (loss) income, pre-tax amount	(33.4)	3.3
Other comprehensive (loss) income, tax	(0.4)	0
Total other comprehensive (loss) income	(33.8)	3.3
Gain from hedging activities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive (loss) income, pre-tax amount	0.2	(0.1)
Other comprehensive (loss) income, tax	0	0
Total other comprehensive (loss) income	$ 0.2	$ (0.1)

Other Comprehensive (Loss) In_4

Other Comprehensive (Loss) Income - Changes in AOCI, Net of Tax (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Changes in accumulated other comprehensive income (loss), net of tax
Beginning balance	$ 541.1	$ 481.4
Current period other comprehensive income (loss)	(33.5)	3.2
Ending balance	509.4	508
Defined Benefit Pension and Other Postretirement Plans
Changes in accumulated other comprehensive income (loss), net of tax
Beginning balance	(2.7)	(2.2)
Current period other comprehensive income (loss)	0.1	0
Ending balance	(2.6)	(2.2)
Currency Translation Adjustments
Changes in accumulated other comprehensive income (loss), net of tax
Beginning balance	(114.2)	(117.8)
Current period other comprehensive income (loss)	(33.8)	3.3
Ending balance	(148)	(114.5)
Hedging Activities
Changes in accumulated other comprehensive income (loss), net of tax
Beginning balance	(0.1)	0
Current period other comprehensive income (loss)	0.2	(0.1)
Ending balance	0.1	(0.1)
Total
Changes in accumulated other comprehensive income (loss), net of tax
Beginning balance	(117)	(120)
Current period other comprehensive income (loss)	(33.5)	3.2
Ending balance	$ (150.5)	$ (116.8)

Stock Incentive Plans - Narrati

Stock Incentive Plans - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock compensation (benefit) expense		$ 0.8	$ 1.9
Share repurchases (in shares)		15,800	125,400
Share repurchases	[1]	$ 0.3	$ 3.2
Cash payments for tax withholding obligations		$ 0.3	$ 3.2
Shares of common stock reserved and available for future grant (in shares)		7,500,000
Weighted average grant date fair value of options granted (in usd per share)			$ 8.70
Intrinsic value of all options exercised		$ 0.1	$ 1.7
Fair value of awards vested		$ 0.9	$ 6
Performance period		3 years
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense for stock options		$ 0.5
Unrecognized stock-based compensation expense for stock options, period of recognition		1 year 2 months 12 days
Restricted Stock Units (RSUs) and Performance Based Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense for stock options, period of recognition		2 years 1 month 6 days
Total unrecognized compensation expense related to the RSU and PBU awards		$ 9.1
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Weighted average grant date fair value (in usd per share)		$ 21.11	$ 26.62
Amount settled in period (in shares)		43,000	236,000
Restricted Stock Units (RSUs) | Vesting 1, Year 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		33.33%
Restricted Stock Units (RSUs) | Vesting 1, Year 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		33.33%
Restricted Stock Units (RSUs) | Vesting 1, Year 3
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		33.33%
Restricted Stock Units (RSUs) | Vesting 2, Year 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		0.00%
Restricted Stock Units (RSUs) | Vesting 2, Year 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		0.00%
Restricted Stock Units (RSUs) | Vesting 2, Year 3
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		100.00%
Performance Based Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Weighted average grant date fair value (in usd per share)		$ 22.41	$ 27.22
Amount settled in period (in shares)			76,461
Fair value of awards vested			$ 2
Performance Based Units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected payout, percent of target		0.00%
Performance Based Units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected payout, percent of target		200.00%
Sign-On Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		2 years
Award vesting percentage		100.00%
[1]	During the three months ended March 31, 2020 and 2019, GCP withheld and retained approximately 15,800 shares and 125,400 shares, respectively, of Company common stock in a non-cash transaction with a cost of $0.3 million and $3.2 million, respectively, in connection with fulfilling statutory tax withholding requirements for employees under the provisions of the Company's equity compensation programs. During the three months ended March 31, 2020 and 2019, cash payments for such tax withholding obligations were $0.3 million and $3.2 million, respectively.

Stock Incentive Plans - Stock O

Stock Incentive Plans - Stock Options, Valuation Assumptions (Details) - Stock Option	3 Months Ended
	Mar. 31, 2019$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate, minimum	2.44%
Risk-free interest rate, maximum	2.64%
Volatility, minimum	28.02%
Volatility, maximum	28.59%
Dividend yield	0.00%
Weighted average fair value per stock option (in usd per share)	$ 8.70
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average life of options	5 years 6 months
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average life of options	6 years 6 months

Stock Incentive Plans - Stock_2

Stock Incentive Plans - Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2020	Jun. 30, 2019	Dec. 31, 2019
Number Of Shares (in thousands)
Outstanding, beginning balance (in shares)	1,284
Options exercised (in shares)	(20)
Options forfeited/expired/canceled (in shares)	(18)
Options granted (in shares)	0
Outstanding, ending balance (in shares)	1,246
Exercisable, end of period (in shares)	1,073
Vested and expected to vest, end of period (in shares)	1,234
Weighted Average Exercise Price
Outstanding, beginning balance (in usd per share)	$ 22.66
Options exercised (in usd per share)	19.23
Options forfeited/expired/canceled (in usd per share)	28.39
Options granted (in usd per share)	0
Outstanding, ending balance (in usd per share)	22.62
Exercisable, end of period (in usd per share)	21.87
Vested and expected to vest, end of period (in usd per share)	$ 22.58
Other Disclosures
Outstanding, weighted-average remaining contractual term	3 years 7 days	3 years 2 months 4 days
Exercisable, weighted-average remaining contractual term	2 years 7 months 2 days
Vested and expected to vest, weighted-average remaining contractual term	3 years
Outstanding, aggregated intrinsic value	$ 249		$ 3,171
Exercisable, aggregated intrinsic value	249
Vested and expected to vest, aggregated intrinsic value	$ 249

Stock Incentive Plans - Restric

Stock Incentive Plans - Restricted Stock Units Award Activity (Details) - Restricted Stock Units (RSUs) - $ / shares shares in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Number Of Shares (in thousands)
Outstanding, beginning balance (in shares)	156
Settled (in shares)	(43)
Forfeited (in shares)	0
Granted (in shares)	190
Outstanding, ending balance (in shares)	303
RSUs expected to vest (in shares)	280
Weighted Average Grant Date Fair Value
Outstanding, beginning balance (in usd per share)	$ 27.33
Settled (in usd per share)	28.02
Forfeited (in used per share)	0
Granted (in usd per share)	21.11	$ 26.62
Outstanding, ending balance (in usd per share)	23.25
RSUs expected to vest (in usd per share)	$ 23.32

Stock Incentive Plans - PBUs, V

Stock Incentive Plans - PBUs, Valuation Assumptions (Details) - Performance Based Units	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected Term (Remaining Performance Period)	2 years 10 months 6 days	2 years 10 months 9 days
Expected volatility	29.85%	28.46%
Risk-free interest rate	1.21%	2.48%
Expected dividends	0.00%	0.00%
Correlation coefficient	53.43%	54.81%
Median correlation coefficient of constituents	54.01%	57.09%

Stock Incentive Plans - Perform

Stock Incentive Plans - Performance Based Units Award Activity (Details) - Performance Based Units - $ / shares shares in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Number Of Shares (in thousands)
Outstanding, beginning balance (in shares)	382
Settled (in shares)	0
Forfeited (in shares)	(111)
Granted (in shares)	146
Outstanding, ending balance (in shares)	417
Weighted Average Grant Date Fair Value
Outstanding, beginning balance (in usd per share)	$ 29.51
Settled (in usd per share)	0
Forfeited (in used per share)	28.22
Granted (in usd per share)	22.41	$ 27.22
Outstanding, ending balance (in usd per share)	$ 27.36

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Numerators
Income from continuing operations attributable to GCP shareholders		$ 1.4	$ 14.6
(Loss) income from discontinued operations, net of income taxes		(0.3)	6.8
Net income attributable to GCP shareholders		$ 1.1	$ 21.4
Denominators
Weighted average common shares—basic calculation (in shares)		72.9	72.3
Dilutive effect of employee stock awards (in shares)		0.1	0.5
Weighted average common shares—diluted calculation (in shares)	[1]	73	72.8
Basic earnings (loss) per share:
Income from continuing operations attributable to GCP shareholders (in usd per share)		$ 0.02	$ 0.20
(Loss) income from discontinued operations, net of income taxes (in usd per share)		0	0.09
Net income attributable to GCP shareholders (in usd per share)	[2]	0.02	0.30
Diluted earnings (loss) per share
Income from continuing operations attributable to GCP shareholders (in dollars per share)	[1]	0.02	0.20
(Loss) income from discontinued operations, net of income taxes (in dollars per share)	[1]	0	0.09
Net income attributable to GCP shareholders (in dollars per share)	[1],[2]	$ 0.02	$ 0.29
Antidilutive securities excluded from computation of earnings per share, treasury stock method (in shares)		0.6	0.6
[1]	Dilutive effect is only applicable to the periods during which GCP generated net income from continuing operations.
[2]	Amounts may not sum due to rounding.

Related Party Transactions an_2

Related Party Transactions and Transactions with Grace (Details) - W.R. Grace & Co. - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Other assets
Related Party Transaction [Line Items]
Indemnified receivables, tax	$ 3.4	$ 3.5
Other current liabilities
Related Party Transaction [Line Items]
Indemnified payables, tax	$ 0.9	$ 1

Operating Segment and Geograp_3

Operating Segment and Geographic Information - Narrative (Details)	3 Months Ended
	Mar. 31, 2020segment
Segment Reporting [Abstract]
Number of operating segments	2

Operating Segment and Geograp_4

Operating Segment and Geographic Information - Schedule of Operating Segment Data (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Sales
Net sales	$ 216.7	$ 226.1
Segment Operating Income
Operating income	22.1	23.8
Specialty Construction Chemicals
Net Sales
Net sales	125.4	131.7
Segment Operating Income
Operating income	8	7.9
Specialty Building Materials
Net Sales
Net sales	91.3	94.4
Segment Operating Income
Operating income	$ 14.1	$ 15.9

Operating Segment and Geograp_5

Operating Segment and Geographic Information - Reconciliation of Segment Data to Financial Statements (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Operating income	$ 22.1	$ 23.8
Corporate costs	(68.1)	(69)
Repositioning expenses	(2.7)	(5.4)
Restructuring expenses and asset impairments	(3.1)	(0.6)
Net income attributable to noncontrolling interests	0.1	0.2
Loss from continuing operations before income taxes	(0.4)	(1.6)
Corporate
Segment Reporting Information [Line Items]
Corporate costs	(5.8)	(9.9)
Restructuring expenses and asset impairments	0	0
Segment Reconciling Items
Segment Reporting Information [Line Items]
Certain pension costs	(1.3)	(1.9)
Shareholder activism and other related costs	(3.6)	(2.5)
COVID-19-related costs	(0.5)	0
Repositioning expenses	(2.7)	(5.4)
Restructuring expenses and asset impairments	(3.1)	(0.6)
Third-party and other acquisition-related costs	(0.5)	(0.1)
Net income attributable to noncontrolling interests	0.1	0.2
Interest expense, net	$ (5.1)	$ (5.2)

Operating Segment and Geograp_6

Operating Segment and Geographic Information - Geographic Area Data (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Net sales	$ 216.7	$ 226.1
Total North America
Segment Reporting Information [Line Items]
Net sales	119.2	113.5
United States
Segment Reporting Information [Line Items]
Net sales	113	107.8
Canada and Other
Segment Reporting Information [Line Items]
Net sales	6.2	5.7
Europe Middle East Africa
Segment Reporting Information [Line Items]
Net sales	44.3	46.4
Asia Pacific
Segment Reporting Information [Line Items]
Net sales	40.3	50.7
Latin America
Segment Reporting Information [Line Items]
Net sales	$ 12.9	$ 15.5

Discontinued Operations - Narra

Discontinued Operations - Narrative (Details) - USD ($)	Jul. 03, 2017	Mar. 31, 2019	Mar. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Non-current assets held for sale			$ 0	$ 500,000
Disposed of by Sale | Darex
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received/receivable for disposal	$ 1,060,000,000
After-tax gain on sale		$ 7,200,000
Non-current assets held for sale			0	500,000
Provision for income taxes of discontinued operations		$ 2,400,000
Term of transition services agreement	35 months
Indemnification payable			900,000	900,000
Disposed of by Sale | Darex | Other current liabilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, deferred consideration			$ 0	$ 500,000

Discontinued Operations - Recon

Discontinued Operations - Reconciliation of Gain on Disposal (Details) - Darex - Disposed of by Sale $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds included in gain	$ 12.7
Net assets derecognized	(3.1)
Gain recognized before income taxes	9.6
Tax effect of gain recognized	(2.4)
Gain recognized after income taxes	$ 7.2

Discontinued Operations - Incom

Discontinued Operations - Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) income from discontinued operations, net of income taxes	$ (0.3)	$ 6.8
Darex | Discontinued operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	0	0
Cost of goods sold	0	0
Gross profit	0	0
Selling, general and administrative expenses	0.2	0.3
Restructuring expenses and asset impairments	0	0.1
Gain on sale of business	0	(9.6)
Other expenses, net	0.1	0.1
(Loss) income from discontinued operations before income taxes	(0.3)	9.1
Provision for income taxes	0	(2.3)
(Loss) income from discontinued operations, net of income taxes	$ (0.3)	$ 6.8