Acquisitions - Purchase Price Allocation for Acquisition (Detail) $ in Thousands	Jun. 30, 2016 USD ($)
Skygistics Ltd. [Member]
Business Acquisition [Line Items]
Cash and cash equivalents	$ 383
Accounts receivable	989
Inventories	292
Other current assets	112
Property, plant and equipment	418
Deferred tax assets	90
Intangible assets	1,071
Total identifiable assets acquired	3,355
Accounts payable and accrued expenses	410
Other liabilities	11
Total liabilities assumed	421
Net identifiable assets acquired	2,934
Goodwill	1,415
Total preliminary purchase price	4,349
WAM Technologies, LLC [Member]
Business Acquisition [Line Items]
Accounts receivable	563
Property, plant and equipment	122
Intangible assets	4,810
Total identifiable assets acquired	5,495
Accounts payable and accrued expenses	204
Deferred revenues	7,326
Total liabilities assumed	7,530
Net identifiable assets acquired	(2,035)
Goodwill	10,724
Total preliminary purchase price	$ 8,689