XML 21 R78.htm IDEA: XBRL DOCUMENT
v2.4.1.9

COMMON AND PREFERRED STOCK (Series A-3 Preferred) (Details) (Series A-3 Convertible Preferred Stock, USD $) In Thousands, except Share data, unless otherwise specified | 0 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Apr. 15, 2010 | Dec. 31, 2014 vote | Apr. 15, 2010
Class of Stock [Line Items] |  |  |
Issuance of preferred stock (in shares) | 290,277 us-gaap_PreferredStockSharesIssued |  | 290,277 us-gaap_PreferredStockSharesIssued
Percentage of equity securities subject to liquidation evaluation | 100.00%epam_PercentageOfEquitySecuritiesSubjectToLiquidationEvaluationInHundredths |  |
Private Placement |  |  |
Class of Stock [Line Items] |  |  |
Sale of stock price per share (in dollars per share) | $ 51.85 us-gaap_SaleOfStockPricePerShare / us-gaap_ShareholdersEquityClassAxis = epam_SeriesAThreePreferredStockMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |  | $ 51.85 us-gaap_SaleOfStockPricePerShare / us-gaap_ShareholdersEquityClassAxis = epam_SeriesAThreePreferredStockMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember
Net proceeds from issuance of stock | $ 14,971 us-gaap_SaleOfStockConsiderationReceivedOnTransaction / us-gaap_ShareholdersEquityClassAxis = epam_SeriesAThreePreferredStockMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |  |
Number of votes |  | 1 epam_PreferredStockNumberofVotes / us-gaap_ShareholdersEquityClassAxis = epam_SeriesAThreePreferredStockMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |

X
- Definition Percentage of equity securities subject to liquidation evaluation (in hundredths) + References No definition available. + Details
Name: | epam_PercentageOfEquitySecuritiesSubjectToLiquidationEvaluationInHundredths
Namespace Prefix: | epam_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Preferred Stock, Number of Votes + References No definition available. + Details
Name: | epam_PreferredStockNumberofVotes
Namespace Prefix: | epam_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ClassOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
Name: | us-gaap_PreferredStockSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Cash received on stock transaction after deduction of issuance costs. + References No definition available. + Details
Name: | us-gaap_SaleOfStockConsiderationReceivedOnTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |