Other Expense - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014
Component Of Operating Cost And Expense [Line Items]
Other expense	$ 502	$ 1,409
Software Systems [Member]
Component Of Operating Cost And Expense [Line Items]
Other expense	502	659
Natural Disasters and Other Casualty Events [Member]
Component Of Operating Cost And Expense [Line Items]
Other expense		$ 750