XML 122 R48.htm IDEA: XBRL DOCUMENT
v3.20.1

Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands |  | 12 Months Ended |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 01, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) Segments shares | Dec. 31, 2019 USD ($) Segments | Dec. 31, 2018 CNY (¥) shares | Dec. 31, 2017 CNY (¥) | Mar. 31, 2020 CNY (¥) | Dec. 31, 2019 USD ($) shares | Oct. 31, 2019 CNY (¥) | Jul. 31, 2019 CNY (¥) | Jul. 31, 2019 USD ($) | Apr. 30, 2019 CNY (¥) | Jan. 01, 2019 CNY (¥) | Oct. 31, 2018 CNY (¥) | Oct. 31, 2017 CNY (¥)
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exchange rates used for translation |  | 6.9762 |  | 6.8632 |  |  | 6.9762 |  |  |  |  |  |  |
Convenience translation rate |  | 6.9618 |  |  |  |  | 6.9618 |  |  |  |  |  |  |
Restricted cash |  | ¥ 3,686,203,000 |  | ¥ 3,677,557,000 |  |  | $ 529,490 |  |  |  |  |  |  |
Cash collateral for borrowed securities |  | 251,853,000 |  | 26,000,000 |  |  |  |  |  |  |  |  |  |
Cash held in escrow accounts |  | 44,367,000 |  | 10,436,000 |  |  |  |  |  |  |  |  |  |
Insignificant equity method investments |  | 803,691,000 | $ 115,443 | 155,286,000 | ¥ 9,953,000 |  |  |  |  |  |  |  |  |
Disposed equity method investments |  | 20,000,000 |  | 0 | 0 |  |  |  |  |  |  |  |  |
Gain on disposed equity method investments |  | 10,621,000 |  | 0 | 0 |  |  |  |  |  |  |  |  |
Disposed non marketable equity securities |  | 1,508 |  | 0 | 0 |  |  |  |  |  |  |  |  |
Loss on disposed non marketable equity securities |  | 7,000 |  | 0 | 0 |  |  |  |  |  |  |  |  |
Cash consideration for equity interests |  | ¥ 96,622,000 |  | 81,000,000 |  |  |  |  |  |  |  |  |  |
Acquired of equity interest |  | 10.00% |  |  |  |  | 10.00% |  |  |  |  |  |  |
Impairment of long-lived assets |  | ¥ 4,600,000 |  | 0 | 0 |  |  |  |  |  |  |  |  |
Gain from quality assurance fund |  | ¥ 98,400,000 | $ 14,100 | 510,900,000 | 5,900,000 |  |  |  |  |  |  |  |  |
Percentage of principal amount invested received |  | 0.10% | 0.10% |  |  |  |  |  |  |  |  |  |  |
Restricted cash transferred to cash and cash equivalents |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 45,567,000
Reversal of gains |  |  |  |  | 213,958,000 |  |  |  |  |  |  |  |  |
Expected discretionary payment to investor reserve |  |  |  | 39,041,000 | 107,660,000 |  |  |  |  |  |  |  |  |
Discretionary payment to investor reserve |  |  |  | 68,619,000 |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  | ¥ 4,218,946,000 |  |  |  |  |  |  |  |  |  |
Percentage on statutory reserve contribution from net profit |  | 50.00% | 50.00% |  |  |  |  |  |  |  |  |  |  |
Number of reportable segments | Segments |  | 1 | 1 |  |  |  |  |  |  |  |  |  |  |
Number of geographical segments | Segments |  | 0 | 0 |  |  |  |  |  |  |  |  |  |  |
Treasury stock, common shares | shares |  | 20,634,265 |  | 46,301,000 |  |  | 20,634,265 |  |  |  |  |  |  |
Appropriations to the general reserve |  | ¥ 61,192,000 |  | ¥ 200,916,000 | 39,428,000 |  |  |  |  |  |  |  |  |
Maximum potential future payments of outstanding loans |  | 0 |  |  |  |  | $ 0 |  |  |  |  |  |  |
Equity method investment impairment |  | 0 |  | 0 | 0 |  |  |  |  |  |  |  |  |
Reclassified provision for loan receivables |  | 299,504,000 |  |  |  |  |  |  |  |  |  |  |  |
Prior period reclassification amount |  |  |  | 192,749,000 | 46,586,000 |  |  |  |  |  |  |  |  |
Operating lease right of use asset |  | 95,786,000 |  |  |  |  | $ 13,759 |  |  |  |  | ¥ 127,066,000 |  |
Operating lease liability |  | 85,143,000 |  |  |  |  |  |  |  |  |  | ¥ 118,420,000 |  |
Cummulative effect on retained earnings |  |  |  | 176,494,000 |  |  |  |  |  |  |  |  |  |
Non-marketable equity investments |  | 856,211,000 |  | 86,501,000 |  |  |  |  |  |  |  |  |  |
Non-marketable Equity Method Investments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of fair value adjustment |  | 0 |  | 77,000 |  |  |  |  |  |  |  |  |  |
Non-marketable Equity Investments In Financial Industry [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-marketable equity investments |  | 700,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Fujian Zhiyun [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net assets of guarantee company |  |  |  |  |  | ¥ 0 |  |  |  |  |  |  |  |
Individual Investors With Capped Obligations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  |  |  | 2,414,449,000 |  |  |  |  |  |  |  |  |  |
Institutional Investors Without Uncapped Obligations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  | 1,473,749,000 |  |  |  |  |  |  |  |  |  |  |  |
Shanghai Yi Yang Automobile Service Co Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash consideration for equity interests |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 30,000,000 |
Acquired of equity interest |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |
Shanghai Zhan Lue Data Technology Co Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash consideration for equity interests |  |  |  |  |  |  |  |  |  |  | ¥ 30,000,000 |  |  |
Acquired of equity interest |  |  |  |  |  |  |  |  |  |  | 6.98% |  |  |
Fan Sheng Limited [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash consideration for equity interests |  |  |  |  |  |  |  |  | ¥ 30,000,000 | $ 4,370 |  |  |  |
Acquired of equity interest |  |  |  |  |  |  |  |  | 3.22% | 3.22% |  |  |  |
Two Private Equity Fund One [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash consideration for equity interests |  |  |  |  |  |  |  |  | ¥ 50,000,000 |  |  |  |  |
Two Private Equity Fund Two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash consideration for equity interests |  |  |  |  |  |  |  |  | ¥ 20,000,000 |  |  |  |  |
Guarantee and Quality Assurance Fund [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  | 21,794,353,000 |  | 19,350,705,000 |  |  |  |  |  |  |  |  |  |
Investor Reserve Funds [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  | 41,958,000 |  | 17,971,000 |  |  |  |  |  |  |  |  |  |
Cash Received From Investors Or Borrowers Not Yet Disbursed [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  | 684,630,000 |  | 905,034,000 |  |  |  |  |  |  |  |  |  |
Cash Received Via Consolidated Trust Not Yet Distributed [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  | 799,646,000 |  | 303,667,000 |  |  |  |  |  |  |  |  |  |
Demand Deposits [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  |  |  |  |  |  |  | ¥ 390,000,000 |  |  |  |  |  |
Accounting Standards Update 2016-13 [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in financial instruments | ¥ 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Cummulative effect on retained earnings | ¥ 882,964,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Grants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | 62,517,000 |  | 53,739,000 | 1,682,000 |  |  |  |  |  |  |  |  |
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative effect of initially applying the revenue standard on retained earnings |  | 176,500,000 |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  | 511,077,000 |  |  |  |  |  |  |  |  |  |
Other Income [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash held in escrow accounts |  | 52,863,000 |  |  |  |  |  |  |  |  |  |  |  |
Realized and unrealized gain on short-term investments |  |  |  | 96,061,000 | 35,516,000 |  |  |  |  |  |  |  |  |
Selling and Marketing Expense [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Advertising and online marketing expenses |  | ¥ 710,203,000 |  | 702,508,000 | 779,737,000 |  |  |  |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents, original maturities period |  | 3 months | 3 months |  |  |  |  |  |  |  |  |  |  |
Insignificant equity method investments |  | ¥ 25,000,000 |  | 25,000,000 | 25,000,000 |  |  |  |  |  |  |  |  |
Insignificant non-marketable equity method investments |  | ¥ 13,952,000 |  | 13,952,000 | 13,952,000 |  |  |  |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Statutory reserve contribution percentage on net profit |  | 10.00% | 10.00% |  |  |  |  |  |  |  |  |  |  |
Insignificant equity method investments |  | ¥ 5,000,000 |  | 5,000,000 | 5,000,000 |  |  |  |  |  |  |  |  |
Insignificant non-marketable equity method investments |  | ¥ 209,000 |  | ¥ 209,000 | ¥ 209,000 |  |  |  |  |  |  |  |  |
Beijing Prosper Investment Consulting Co., Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage to pay service fees by VIE's |  | 100.00% | 100.00% |  |  |  |  |  |  |  |  |  |  |

X
- Definition Appropriations to general reserve. + References No definition available. + Details
Name: | finv_AppropriationsToGeneralReserve
Namespace Prefix: | finv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Cash and cash equivalent maturity period. + References No definition available. + Details
Name: | finv_CashAndCashEquivalentMaturityPeriod
Namespace Prefix: | finv_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Convenience translation rate. + References No definition available. + Details
Name: | finv_ConvenienceTranslationRate
Namespace Prefix: | finv_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Discretionary payment to investor reserve. + References No definition available. + Details
Name: | finv_DiscretionaryPaymentToInvestorReserve
Namespace Prefix: | finv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Expected discretionary payment to investor reserve. + References No definition available. + Details
Name: | finv_ExpectedDiscretionaryPaymentToInvestorReserve
Namespace Prefix: | finv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of gain (loss) recorded along with the releasing of guaranteed risks under the quality assurance program. + References No definition available. + Details
Name: | finv_GainLossFromQualityAssuranceFund
Namespace Prefix: | finv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Increase in financial instruments. + References No definition available. + Details
Name: | finv_IncreaseInFinancialInstruments
Namespace Prefix: | finv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Certain percentage of principal amount invested. + References No definition available. + Details
Name: | finv_ManagementFeeOfInvestorReserveFunds
Namespace Prefix: | finv_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum potential future payments of outstanding loans. + References No definition available. + Details
Name: | finv_MaximumPotentialFuturePaymentsofOutstandingLoans
Namespace Prefix: | finv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Net assets of guarantee company. + References No definition available. + Details
Name: | finv_NetAssetsOfGuaranteeCompany
Namespace Prefix: | finv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Non marketable equity investments. + References No definition available. + Details
Name: | finv_NonMarketableEquityInvestments
Namespace Prefix: | finv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number of geographical segments. + References No definition available. + Details
Name: | finv_NumberOfGeographicalSegments
Namespace Prefix: | finv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Payments to acquire equity non-marketable method investments. + References No definition available. + Details
Name: | finv_PaymentsToAcquireEquityNonMarketableMethodInvestments
Namespace Prefix: | finv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Percentage on statutory reserve contribution from net profit. + References No definition available. + Details
Name: | finv_PercentageOnStatutoryReserveContributionFromNetProfit
Namespace Prefix: | finv_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reclassified provision for loan receivables . + References No definition available. + Details
Name: | finv_ReclassificationOfProvisionToLoanReceivable
Namespace Prefix: | finv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Restricted cash transferred to cash and cash equivalents with the termination of investment program with flexible investment periods. + References No definition available. + Details
Name: | finv_RestrictedCashTransferredToCashAndCashEquivalents
Namespace Prefix: | finv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reversal of derivative gains losses on derivative. + References No definition available. + Details
Name: | finv_ReversalOfDerivativeGainsLossesOnDerivative
Namespace Prefix: | finv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Service fees percentage. + References No definition available. + Details
Name: | finv_ServiceFeesPercentage
Namespace Prefix: | finv_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Statutory reserve contribution percentage on net profit. + References No definition available. + Details
Name: | finv_StatutoryReserveContributionPercentageOnNetProfit
Namespace Prefix: | finv_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Summary of significant accounting policies. + References No definition available. + Details
Name: | finv_SummaryOfSignificantAccountingPoliciesLineItems
Namespace Prefix: | finv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Carrying amount as of the balance sheet date of cash collateral held for borrowed securities, for which the cash is restricted as to withdrawal or usage. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.1) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),2) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
Name: | us-gaap_CashCollateralForBorrowedSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of the cumulative effect on retained earnings net of related income tax effect. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794 + Details
Name: | us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=118954474&loc=d3e32787-111569 + Details
Name: | us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of gain (loss) on sale or disposal of an equity method investment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(b)(7)(c)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(b)(9)(a)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_EquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117546-209714 + Details
Name: | us-gaap_EquitySecuritiesFvNiRealizedGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_EscrowDeposit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521 + Details
Name: | us-gaap_ForeignCurrencyExchangeRateTranslation1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of realized and unrealized gain (loss) on investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27405-111563 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(c),9(a)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
Name: | us-gaap_GainLossOnInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount after tax of cumulative effect of restatement on the opening retained earnings of the earliest year presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794 + Details
Name: | us-gaap_ImpactOfRestatementOnOpeningRetainedEarningsNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 220 -Section 45 -Paragraph 11 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=114873921&loc=SL114875236-224282 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228 + Details
Name: | us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The total expense recognized in the period for promotion, public relations, and brand or product advertising. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_MarketingAndAdvertisingExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of a reclassification adjustment made to prior period financial statement amounts. + References No definition available. + Details
Name: | us-gaap_PriorPeriodReclassificationAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow associated with the sale of securities classified as trading securities and held for investment purposes. Excludes proceeds from trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time). + References No definition available. + Details
Name: | us-gaap_ProceedsFromSaleOfTradingSecuritiesHeldforinvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
Name: | us-gaap_RestrictedCash
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of previously issued common shares repurchased by the issuing entity and held in treasury. + 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 210.5-02.30) -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 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
Name: | us-gaap_TreasuryStockCommonShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=finv_NonMarketableEquityMethodInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=finv_NonMarketableEquityInvestmentsInFinancialIndustryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=finv_FujianZhiyunMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=finv_IndividualInvestorsWithCappedObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=finv_InstitutionalInvestorsWithoutUncappedObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=finv_ShanghaiYiYangAutomobileServiceCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=finv_ZhanLueDataTechnologyCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=finv_FanShengLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=finv_TwoPrivateEquityFundOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=finv_TwoPrivateEquityFundTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis=finv_GuaranteeAndQualityAssuranceFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis=finv_InvestorReserveFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis=finv_CashReceivedFromInvestorsOrBorrowersNotYetDisbursedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis=finv_CashReceivedViaConsolidatedTrustNotYetDistributedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis=us-gaap_DemandDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201613Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_GrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InitialApplicationPeriodCumulativeEffectTransitionAxis=us-gaap_DifferenceBetweenRevenueGuidanceInEffectBeforeAndAfterTopic606Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_OtherIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_SellingAndMarketingExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=finv_BeijingProsperInvestmentConsultingCompanyLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |