Segment and Related Information - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) Business_Unit Segment	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Segment Reporting Information [Line Items]
Number of business units | Business_Unit	4
Capital expenditure for purchase of buildings and land	$ 12,501	$ 9,343	$ 26,858
Enterprise Software Solutions [Member]
Segment Reporting Information [Line Items]
Number of reportable segment | Segment	1
Capital expenditure for purchase of buildings and land			$ 19,600