<SEC-DOCUMENT>0001562180-22-003295.txt : 20220406
<SEC-HEADER>0001562180-22-003295.hdr.sgml : 20220406
<ACCEPTANCE-DATETIME>20220406141511
ACCESSION NUMBER:		0001562180-22-003295
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220402
FILED AS OF DATE:		20220406
DATE AS OF CHANGE:		20220406

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SIDHU JAY S
		CENTRAL INDEX KEY:			0001222371

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35542
		FILM NUMBER:		22810269

	MAIL ADDRESS:	
		STREET 1:		4655 SALISBURY ROAD
		STREET 2:		SUITE 110
		CITY:			JACKSONVILLE
		STATE:			FL
		ZIP:			32256

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Customers Bancorp, Inc.
		CENTRAL INDEX KEY:			0001488813
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				272290659
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		701 READING AVENUE
		CITY:			WEST READING
		STATE:			PA
		ZIP:			19611
		BUSINESS PHONE:		484-359-7113

	MAIL ADDRESS:	
		STREET 1:		701 READING AVENUE
		CITY:			WEST READING
		STATE:			PA
		ZIP:			19611

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Customers 1st Bancorp, Inc.
		DATE OF NAME CHANGE:	20100408
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>primarydocument.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2022-04-02</periodOfReport>

    <dateOfOriginalSubmission>2022-04-05</dateOfOriginalSubmission>

    <notSubjectToSection16>false</notSubjectToSection16>

    <issuer>
        <issuerCik>0001488813</issuerCik>
        <issuerName>Customers Bancorp, Inc.</issuerName>
        <issuerTradingSymbol>CUBI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001222371</rptOwnerCik>
            <rptOwnerName>SIDHU JAY S</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>701 READING AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WEST READING</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19611</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>Chairman &amp; CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-04-02</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3273.00</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>51.16</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1237434.00</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>192000.00</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Spouse</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>179410.00</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Trust</value>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Shares withheld for taxes upon vesting of previously issued restricted stock units award.</footnote>
        <footnote id="F2">Includes 74,799 Restricted Stock Units.</footnote>
        <footnote id="F3">Includes 7,789 shares acquired pursuant to Customers Bancorp, Inc.'s Employee Stock Purchase Plan.</footnote>
        <footnote id="F4">The reporting person filed a Form 5 on February 9, 2022 and Form 4s filed on February 25, 2022, March 1, 2022, March 16, 2022, March 24, 2022, and April 5, 2022 that inadvertently reported 46,200 shares as being indirectly owned by the reporting person.   The reporting person does not have any direct or indirect ownership interest in such shares and they have therefore been omitted.</footnote>
        <footnote id="F5">Sherry Sidhu TOD Jay Sidhu.</footnote>
        <footnote id="F6">Jay S. Sidhu FBO Sherry K. Sidhu and Descendants Irrevocable Agreement of Trust dtd. 12/21/2021.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jay S. Sidhu by Andrew Sachs under Power of Attorney</signatureName>
        <signatureDate>2022-04-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
