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Summary of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended | 3 Months Ended
--- | --- | --- | ---
Jun. 30, 2014 | Mar. 31, 2015 | Mar. 31, 2014 | Mar. 31, 2015 | Dec. 31, 2014
Goodwill And Intangible Assets [Line Items] |  |  |  |  |
Intangible assets, beginning balance | $ 9,074 us-gaap_IntangibleAssetsNetExcludingGoodwill | $ 9,074 us-gaap_IntangibleAssetsNetExcludingGoodwill | $ 4,757 us-gaap_IntangibleAssetsNetExcludingGoodwill |  |
Increase in intangible assets |  |  | 6,826 us-gaap_FinitelivedIntangibleAssetsAcquired1 |  |
Intangible assets, impairment |  | 0 us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill | (154)us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill |  |
Intangible assets, disposal of subsidiary |  |  | (586)us-gaap_IndefiniteLivedIntangibleAssetsWrittenOffRelatedToSaleOfBusinessUnit |  |
Intangible assets, amortization |  | (2,010)us-gaap_AmortizationOfIntangibleAssets | (1,769)us-gaap_AmortizationOfIntangibleAssets |  |
Intangible assets, ending balance |  | 24,936 us-gaap_IntangibleAssetsNetExcludingGoodwill | 9,074 us-gaap_IntangibleAssetsNetExcludingGoodwill | 24,936 us-gaap_IntangibleAssetsNetExcludingGoodwill |
Purchase price allocation adjustment | (1,472)us-gaap_GoodwillPurchaseAccountingAdjustments | (1,472)us-gaap_GoodwillPurchaseAccountingAdjustments | (209)us-gaap_GoodwillPurchaseAccountingAdjustments |  |
Capitalized developed software |  | 64 us-gaap_CapitalizedComputerSoftwareNet |  | 64 us-gaap_CapitalizedComputerSoftwareNet |
XYO |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |
Increase in intangible assets |  | 1,500 us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_BusinessAcquisitionAxis = apps_XyologicMobileAnalysisGmbHMember |  | 1,500 us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_BusinessAcquisitionAxis = apps_XyologicMobileAnalysisGmbHMember | 1,500 us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_BusinessAcquisitionAxis = apps_XyologicMobileAnalysisGmbHMember
DT Media (Appia) |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |
Increase in intangible assets |  | $ 17,780 us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_BusinessAcquisitionAxis = apps_DigitalTurbineMediaIncMember |  | $ 17,780 us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_BusinessAcquisitionAxis = apps_DigitalTurbineMediaIncMember | $ 17,780 us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_BusinessAcquisitionAxis = apps_DigitalTurbineMediaIncMember

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128487-111756 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination. + References No definition available. + Details
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- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e961-128460 + Details
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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