Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
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Mar. 31, 2017 |
Mar. 31, 2016 |
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| Revenue Recognition, Multiple-deliverable Arrangements [Line Items] | ||
| Gross media placements | $ 26,723 | $ 18,076 |
| Billed Revenues [Member] | ||
| Revenue Recognition, Multiple-deliverable Arrangements [Line Items] | ||
| Gross media placements | 19,423 | 15,023 |
| Netted Against Billings [Member] | ||
| Revenue Recognition, Multiple-deliverable Arrangements [Line Items] | ||
| Gross media placements | $ 16,524 | $ 12,987 |
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- Definition Disclosure of gross transaction volume for revenues which are reported net. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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