XML 63 R50.htm IDEA: XBRL DOCUMENT v3.10.0.1

Redeemable Convertible Preferred Stock - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		12 Months Ended
	Oct. 31, 2018	Nov. 30, 2017	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2016	Dec. 31, 2015
Redeemable Noncontrolling Interest [Line Items]
Redeemable convertible preferred stock, shares outstanding (in shares)			61,279,079	0	65,464,387	65,464,387
Temporary equity redemption terms, change in control threshold			50.00%
Dividends declared on the Preferred Stock			$ 0
Voting right protective provision, shares outstanding threshold			15,100,000
Voting right protective provision, approval percentage			50.00%
Convertible preferred stock conversion terms, minimum threshold from initial public offering			$ 50,000
Conversion ratio			100.00%
Repurchase and retirement of redeemable convertible preferred stock (in shares)			4,268,489
Repurchase of redeemable convertible preferred stock, price per share (in dollars per share)		$ 4.50
Repurchase of redeemable convertible preferred stock, consideration received			$ 19,200
Repurchase of redeemable convertible preferred stock, carrying value			12,703
Repurchase of redeemable convertible preferred stock			6,506
Additional Paid-in Capital
Redeemable Noncontrolling Interest [Line Items]
Repurchase of redeemable convertible preferred stock			$ 6,506
Series A-1
Redeemable Noncontrolling Interest [Line Items]
Redeemable convertible preferred stock, shares outstanding (in shares)			9,142,770
Dividends payable, amount per share (in dollars per share)			$ 0.80
Issue price per share (in dollars per share)			10.00
Liquidation preference per share (in dollars per share)			$ 10
Repurchase and retirement of redeemable convertible preferred stock (in shares)		874,069
Series A-2
Redeemable Noncontrolling Interest [Line Items]
Redeemable convertible preferred stock, shares outstanding (in shares)			47,124,931
Dividends payable, amount per share (in dollars per share)			$ 0.000008
Issue price per share (in dollars per share)			0.0001
Liquidation preference per share (in dollars per share)			$ 0.0001
Repurchase and retirement of redeemable convertible preferred stock (in shares)		3,151,858
Series B-1
Redeemable Noncontrolling Interest [Line Items]
Redeemable convertible preferred stock, shares outstanding (in shares)			4,866,360
Dividends payable, amount per share (in dollars per share)			$ 0.4568
Issue price per share (in dollars per share)			5.71
Liquidation preference per share (in dollars per share)			$ 5.71
Repurchase and retirement of redeemable convertible preferred stock (in shares)		242,562
Series B-2
Redeemable Noncontrolling Interest [Line Items]
Redeemable convertible preferred stock, shares outstanding (in shares)			145,018
Dividends payable, amount per share (in dollars per share)			$ 0.4568
Issue price per share (in dollars per share)			5.71
Liquidation preference per share (in dollars per share)			$ 5.71
IPO
Redeemable Noncontrolling Interest [Line Items]
Number of shares issued in stock transaction	7,840,908
Price per share of stock transaction (in dollars per share)	$ 15.00

X

- Definition

Convertible Preferred Stock, Conversion Ratio

+ References

No definition available.

+ Details

Name:	upwk_ConvertiblePreferredStockConversionRatio
Namespace Prefix:	upwk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Convertible Preferred Stock, Terms Of Conversion, Minimum Threshold From Initial Public Offering

+ References

No definition available.

+ Details

Name:	upwk_ConvertiblePreferredStockTermsOfConversionMinimumThresholdFromInitialPublicOffering
Namespace Prefix:	upwk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Temporary Equity, Contract Terms, Change In Control Threshold

+ References

No definition available.

+ Details

Name:	upwk_TemporaryEquityContractTermsChangeInControlThreshold
Namespace Prefix:	upwk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Temporary Equity, Stock Repurchased During Period, Consideration Received

+ References

No definition available.

+ Details

Name:	upwk_TemporaryEquityStockRepurchasedDuringPeriodConsiderationReceived
Namespace Prefix:	upwk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Temporary Equity, Stock Repurchased During Period, Price Per Share

+ References

No definition available.

+ Details

Name:	upwk_TemporaryEquityStockRepurchasedDuringPeriodPricePerShare
Namespace Prefix:	upwk_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Temporary Equity, Stock Repurchased During Period, Shares

+ References

No definition available.

+ Details

Name:	upwk_TemporaryEquityStockRepurchasedDuringPeriodShares
Namespace Prefix:	upwk_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Temporary Equity, Stock Repurchased During Period, Value

+ References

No definition available.

+ Details

Name:	upwk_TemporaryEquityStockRepurchasedDuringPeriodValue
Namespace Prefix:	upwk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Temporary Equity, Voting Rights, Protective Provision, Approval Percentage

+ References

No definition available.

+ Details

Name:	upwk_TemporaryEquityVotingRightsProtectiveProvisionApprovalPercentage
Namespace Prefix:	upwk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Temporary Equity, Voting Rights, Protective Provision Shares Outstanding Threshold

+ References

No definition available.

+ Details

Name:	upwk_TemporaryEquityVotingRightsProtectiveProvisionSharesOutstandingThreshold
Namespace Prefix:	upwk_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

+ Details

Name:	us-gaap_DividendsPayableAmountPerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817

+ Details

Name:	us-gaap_DividendsPreferredStock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_RedeemableNoncontrollingInterestLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

+ Details

Name:	us-gaap_StockRepurchasedAndRetiredDuringPeriodValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The per share liquidation preference (or restrictions) of stock classified as temporary equity that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.28(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_TemporaryEquityLiquidationPreferencePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount to be paid per share that is classified as temporary equity by entity upon redemption. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=65877616&loc=d3e177068-122764

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (27)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_TemporaryEquityRedemptionPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(27)(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_TemporaryEquitySharesOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=upwk_SeriesA1RedeemableConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=upwk_SeriesA2RedeemableConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=upwk_SeriesB1RedeemableConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=upwk_SeriesB2RedeemableConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_IPOMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: