Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation and Employee Benefit Plans - Expense by Type (Detail)

v3.10.0.1
Stock-Based Compensation and Employee Benefit Plans - Expense by Type (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 29, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Common stock, shares authorized (shares)   550,000,000 550,000,000  
Dual Class Sunset Class A and B Common Stock Mar. 29, 2017      
Proceeds from Stock Options Exercised   $ 700 $ 7,900 $ 3,600
Stock based compensation   31,721 32,668 21,765
Cost of Sales [Member]        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock based compensation   489 332 210
Research and Development Expense [Member]        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock based compensation   17,953 16,190 14,403
Selling, general and administrative [Member]        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock based compensation   13,279 11,016 7,152
Restructuring Charges [Member]        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock based compensation   $ 0 $ 5,130 $ 0
Predecessor [Member]        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Common stock, shares authorized (shares) 1,575,000,000      
Successor [Member]        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Common stock, shares authorized (shares) 1,509,554,147