Acquisitions - Consideration (Detail) $ in Thousands	9 Months Ended
Sep. 30, 2015 USD ($)
Business Combinations [Abstract]
Cash (including debt repaid at closing)	$ 102,730
Gain on Change in Control of Interests	14,279
Carrying value of previously held equity interest	1,401
Total consideration	$ 118,410

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Fair value at acquisition-date of the equity interest in the acquiree held by the acquirer, immediately before the acquisition date for businesses combined in stages.

+ References

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- Definition

In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.

+ References

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

+ References

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-Publisher FASB

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-Glossary Investing Activities

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