Debt Instrument, Convertible, Carrying Amount of Equity Component, Gross

No definition available.

Name:	cloud_DebtInstrumentConvertibleCarryingAmountOfEquityComponentGross
Namespace Prefix:	cloud_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Debt Instrument, Face Amount, Additional Principal Issuable

+ References

No definition available.

+ Details

Name:	cloud_DebtInstrumentFaceAmountAdditionalPrincipalIssuable
Namespace Prefix:	cloud_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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Balance Type:	na
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The price per share of the conversion feature embedded in the debt instrument.

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only.

+ References

+ Details

Name:	us-gaap_DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger
Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

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

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentRepurchasedFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Period Type:	instant

- Definition

The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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Period Type:	duration

- Definition

The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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Period Type:	duration

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	instant

- Details

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- Details

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Debt - 2025 Convertible Senior Notes (Details)		1 Months Ended	3 Months Ended	12 Months Ended
Debt - 2025 Convertible Senior Notes (Details)	Aug. 13, 2021 USD ($) shares	May 31, 2020 USD ($) day $ / shares	Mar. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Closing share price (in dollars per share) \| $ / shares			$ 119.70
Convertible Debt
Debt Instrument [Line Items]
Debt instrument, fair value			$ 536,000,000
2025 Notes
Debt Instrument [Line Items]
Gross proceeds from issuance of convertible senior notes		$ 562,500,000
Conversion price (in dollars per share) \| $ / shares		$ 37.43
2025 Notes \| Last Reported Stock Price At Lease 130% Of The Debt Conversion Price
Debt Instrument [Line Items]
Conversion requirement, threshold trading days (at least) \| day		20
Conversion requirement, threshold consecutive trading days \| day		30
Conversion requirement, threshold percentage of stock price trigger (at least)		130.00%
2025 Notes \| Principal Amount Less Than 98% of the Product
Debt Instrument [Line Items]
Conversion requirement, threshold trading days (at least) \| day		5
Conversion requirement, threshold consecutive trading days \| day		5
Conversion requirement, threshold percentage of stock price trigger (at least)		98.00%
2025 Notes \| Convertible Debt
Debt Instrument [Line Items]
Debt principal amount		$ 575,000,000
Face amount, additional principal issuable		$ 75,000,000
Principal			$ 158,429,000	$ 175,000,000
Interest rate		0.75%	0.75%
Convertible debt, conversion ratio		0.0267187
Redemption price, percentage		100.00%
Issuance of common stock for exchange of convertible senior notes	$ 1,321,000,000
Repurchased face amount	400,000,000
Repayments of convertible debt	400,700,000
Loss on extinguishment of debt	72,200,000
Debt instrument, fair value	355,300,000
Carrying amount, net	$ 283,100,000		$ 156,271,000	127,964,000
Effective interest rate	4.08%
Equity component of convertible debt	$ 965,700,000
Converted value in excess of principal			$ 348,300,000
Remaining life, convertible debt			38 months
2025 Notes \| Convertible Debt \| Class A common stock
Debt Instrument [Line Items]
Number of shares issued upon debt conversion \| shares	7,600,000		298,909,000,000
2025 Notes \| Convertible Debt \| Certain Holders Conversion
Debt Instrument [Line Items]
Issuance of common stock for exchange of convertible senior notes				$ 16,600,000