Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details)

v3.19.3.a.u2
Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Jan. 01, 2019
Jan. 01, 2018
Derivative instruments $ 0 $ 0    
Retained earnings (accumulated deficit) 2,767,885 2,650,669    
Other current assets 2,409 1,471    
Deferred income tax liabilities 999,757 965,829    
Deferred Revenue and Other Current Liabilities 5,971 4,691    
Deferred revenue current 4,800 4,300 $ 4,300 $ 4,500
Deferred revenue noncurrent 1,800 1,900 1,900 2,300
Deferred revenue 6,600   $ 6,200 6,800
Revenue recognized $ 4,300 4,200    
Revenue recognized period 3 years      
Revenue recognized percentage 97.00%      
Practical expedient modified contract true      
Cumulative Effect on Retained Earnings, Net of Tax   $ 1,223    
Adjustment | ASU 2014-09 and ASU 2016-16        
Retained earnings (accumulated deficit)       1,200
Other current assets       300
Deferred income tax liabilities       400
Deferred Revenue and Other Current Liabilities       $ (1,300)