Acquisitions - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	0 Months Ended	9 Months Ended
Jun. 18, 2014	Sep. 30, 2014
Business Acquisition [Line Items]
Accounts receivables assets acquired, fair value	$ 1.6
Gross amount account receivables asset acquired	1.7
Amount due under contract expected to be uncollectible	0.1
Pulpo Media Inc
Business Acquisition [Line Items]
Ownership Interest acquired	100.00%
Business acquisition date		Jun. 18, 2014
Aggregate cash consideration	15.0
Cash acquired	0.7
Fair value of contingent consideration	1.1
Contingent consideration arrangements, maximum	3.0
Contingent consideration arrangements, minimum	0
Gross amount account receivables asset acquired	$ 1.6

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the best estimate at the acquisition date of the contractual cash flows not expected to be collected, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

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For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the gross contractual amounts receivable, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

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For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

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For contingent consideration arrangements and indemnification assets recognized in connection with a business combination, this element represents an estimate of the low-end of the potential range (undiscounted) of the consideration which may be paid.

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The amount, measured at acquisition-date fair value, of all liabilities assumed that arise from contingencies and were recognized by the entity.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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