Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Class A Redeemable Convertible Preferred Stock (Detail)

v3.19.3.a.u2
Class A Redeemable Convertible Preferred Stock (Detail) - USD ($)
3 Months Ended 12 Months Ended
Jun. 25, 2018
Jun. 24, 2018
Dec. 22, 2016
Jun. 30, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 30, 2015
Temporary Equity [Line Items]                  
Payments for Repurchase of Redeemable Preferred Stock         $ 0 $ 50,096,000 $ 0    
Gain on redemption of preferred stock       $ 9,100,000 $ 0 $ 9,075,000 $ 0    
Series A Redeemable Convertible Preferred Stock                  
Temporary Equity [Line Items]                  
Preferred stock, shares issued                 14,666,667
Preferred stock, par value     $ 7,500,000           $ 7.50
Preferred stock, liquidation preference     $ 49,500,000           $ 110,000,000.0
Preferred stock, liquidation amount at redemption               $ 100,000,000.0  
Preferred stock, shares redeemed     8,066,667            
Preferred stock, redemption amount     $ 55,000,000.0            
Preferred stock redemption price per share (in dollars per share) $ 7.30   $ 6,820,000            
Preferred stock, redemption discount 4.55%   9.09%            
Preferred stock, shares outstanding         0 0 6,864,000 6,600,000  
Payments for Repurchase of Redeemable Preferred Stock $ 50,100,000                
Preferred stock, redemption price, accrued and unpaid dividends, addition price per share $ 0.14                
Preferred stock, carrying amount attributable to parent   $ 37,800,000              
Preferred stock, recognized amount of beneficial conversion feature   $ 21,300,000              
Temporary equity, par value (in dollars per share)     $ 32,900,000           $ 73,200,000
Shares issued (in dollars per share)                 $ 4.99
Preferred stock, issue discount     16,600,000           $ 36,800,000
Preferred stock, beneficial conversion feature     $ 20,100,000           $ 44,700,000
Series A Redeemable Convertible Preferred Stock | Payment In Kind                  
Temporary Equity [Line Items]                  
Preferred stock, shares issued             264,000