Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Assets (Details)

v3.8.0.1
Segment Information - Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Segment Reporting Information [Line Items]    
Total net assets $ 954,971 $ 860,584
Operating Segments    
Segment Reporting Information [Line Items]    
Total net assets 920,814 841,930
Operating Segments | Media & Content    
Segment Reporting Information [Line Items]    
Total net assets 397,250 362,216
Operating Segments | Connectivity    
Segment Reporting Information [Line Items]    
Total net assets 523,564 479,714
Corporate    
Segment Reporting Information [Line Items]    
Total net assets $ 34,157 $ 18,654