Quarterly report pursuant to Section 13 or 15(d)

Acquisitions and Recent Transactions - Summary of Total Acquisition Consideration (Detail)

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Acquisitions and Recent Transactions - Summary of Total Acquisition Consideration (Detail)
$ in Thousands
Sep. 30, 2018
USD ($)
Business Combination, Consideration Transferred [Abstract]  
Cash payments made upon closing $ 10,854
Deferred payments 150
Present value of estimated fair value of contingent earn-out consideration 51
Closing costs accrued for asset acquisitions 125
Total purchase price consideration $ 11,180