Annual report pursuant to Section 13 and 15(d)

Acquisitions and Disposals - Summary of Final Fair Values of Assets Acquired and Liabilities Assumed (Detail)

v3.7.0.1
Acquisitions and Disposals - Summary of Final Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($)
$ in Thousands
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Mar. 06, 2015
Mar. 31, 2014
Business Acquisition [Line Items]          
Goodwill $ 76,621 $ 76,621 $ 76,747   $ 4,837
DT Media (Appia)          
Business Acquisition [Line Items]          
Cash       $ 1,363  
Accounts receivable       7,364  
Prepaid expenses and other assets       171  
Property, plant and equipment       229  
Goodwill   $ 69,312   69,312  
Accounts payable       (5,179)  
Accrued expenses       (4,531)  
Debt       (11,600)  
Purchase price       74,909  
DT Media (Appia) | Developed technology          
Business Acquisition [Line Items]          
Amortizable intangible assets       7,700  
DT Media (Appia) | Advertiser relationships          
Business Acquisition [Line Items]          
Amortizable intangible assets       6,500  
DT Media (Appia) | Publisher relationships          
Business Acquisition [Line Items]          
Amortizable intangible assets       3,200  
DT Media (Appia) | Trade name / trademark          
Business Acquisition [Line Items]          
Amortizable intangible assets       $ 380