Acquisitions - Summary of Purchase Price Allocation for Company's Acquisition of Pulpo (Detail) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Jun. 18, 2014 |
|---|---|---|---|---|
| Business Acquisition [Line Items] | ||||
| Goodwill | $ 50,081 | $ 50,081 | $ 50,081 | |
| Pulpo Media Inc | ||||
| Business Acquisition [Line Items] | ||||
| Accounts receivable | $ 1,600 | |||
| Prepaids and other assets | 100 | |||
| Property and equipment | 500 | |||
| Intangible assets subject to amortization | 3,400 | |||
| Goodwill | 14,100 | |||
| Current liabilities | (1,800) | |||
| Deferred income taxes | $ (1,500) |