Acquisitions - Summary of Consideration Paid for Acquisitions (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2016 USD ($)
Business Combinations [Abstract]
Fair value of assets acquired	$ 5,843
Fair value of liabilities assumed	1,525
Total purchase price	4,318
Allocation of purchase price:
Cash	2,581
Common stock	1,737
Total purchase price	4,318
Cash consideration paid	2,581
Less: cash acquired	(96)
Cash consideration paid, net of cash acquired	$ 2,485

Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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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.

+ References

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Amount of assets acquired at the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

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

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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