Acquisitions - Finite-Lived Intangible Assets Acquired (Details) - Circulation $ in Thousands |
Sep. 21, 2018
USD ($)
|
---|---|
Business Acquisition [Line Items] | |
Value | $ 15,700 |
Customer relationships | |
Business Acquisition [Line Items] | |
Life | 3 years |
Value | $ 1,400 |
Trademarks and trade names | |
Business Acquisition [Line Items] | |
Life | 3 years |
Value | $ 200 |
Developed technology | |
Business Acquisition [Line Items] | |
Life | 5 years |
Value | $ 14,100 |