Quarterly report pursuant to Section 13 or 15(d)

Share-Based Payments - Employee Stock Purchase Plan (Details)

v3.20.2
Share-Based Payments - Employee Stock Purchase Plan (Details)
shares in Thousands, $ / shares in Thousands, $ in Thousands
9 Months Ended
Sep. 30, 2020
USD ($)
$ / shares
shares
Sep. 30, 2019
USD ($)
$ / shares
shares
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]    
Share-based compensation expense | $ $ 7,852 $ 8,536
Employee Stock Purchase Plan [Member]    
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]    
Number of Shares Authorized (in shares) | shares 344  
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date 90.00%  
Number of Large Lump Sum Contributions Related to ESPP Stock Purchases 2  
Continuing Operations [Member] | Employee Stock Purchase Plan [Member]    
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]    
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares) | shares 6 4
Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased (in dollars per share) $ 45 $ 49
Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) $ 5 $ 10
Share-based compensation expense | $ $ 30 $ 46
Discontinued Operations [Member] | Employee Stock Purchase Plan [Member]    
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]    
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares) | shares 1 1
Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased (in dollars per share) $ 45 $ 49
Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) $ 5 $ 10
Share-based compensation expense | $ $ 3 $ 6