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Acquisitions - Purchase Price Allocation for Acquisition (Detail) - WAM Technologies, LLC [Member]
$ in Thousands
Mar. 31, 2016
USD ($)
Business Acquisition [Line Items]  
Accounts receivable $ 570
Property, plant and equipment 122
Intangible assets 4,810
Total identifiable assets acquired 5,502
Accounts payable and accrued expenses 202
Deferred revenues 7,326
Total liabilities assumed 7,528
Net identifiable assets acquired (2,026)
Goodwill 10,526
Total preliminary purchase price $ 8,500