Quarterly report pursuant to Section 13 or 15(d)

Goodwill - Additional Information (Detail)

v2.4.1.9
Goodwill - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended 6 Months Ended 9 Months Ended
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2014
Dec. 31, 2014
Goodwill And Intangible Assets [Line Items]        
Adjustment to goodwill for purchase price allocation $ 1,472us-gaap_GoodwillPurchaseAccountingAdjustments $ 209us-gaap_GoodwillPurchaseAccountingAdjustments    
Acquisition   1,182us-gaap_GoodwillAcquiredDuringPeriod    
XYO        
Goodwill And Intangible Assets [Line Items]        
Acquisition     $ 1,000us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_BusinessAcquisitionAxis
= apps_XyologicMobileAnalysisGmbhMember
$ 1,000us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_BusinessAcquisitionAxis
= apps_XyologicMobileAnalysisGmbhMember