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Segment Information - Additional Information (Detail)
3 Months Ended
Jan. 01, 2018
USD ($)
Mar. 31, 2018
USD ($)
segment
Mar. 31, 2017
USD ($)
Segment Reporting Information [Line Items]      
Revenue from software license extensions and renewals $ 53,000,000    
Number of business segments | segment   2  
Operating profit (loss)   $ 101,800,000 $ 21,800,000 [1]
Other Technology | Segment Reconciling Items      
Segment Reporting Information [Line Items]      
Operating profit (loss)   $ 0 $ 100,000
[1] *Amounts were changed to conform to the current-year presentation. See Note 3.