XML 67 R55.htm IDEA: XBRL DOCUMENT v3.19.1
Organizational Restructuring (Accrued Restructuring Expenses and Changes in Accrued Amounts) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Restructuring Reserve [Roll Forward]      
Restructuring (income) expense $ (70) $ 1,257  
2018 Restructuring Plan      
Restructuring Reserve [Roll Forward]      
Accrued Beginning Balance 7,011    
Adoption of ASC 842 (2,518)    
Restructuring (income) expense (70)   $ 10,300
Payments (1,852)    
Accrued Ending Balance 2,571   7,011
2018 Restructuring Plan | Severance pay and benefits      
Restructuring Reserve [Roll Forward]      
Accrued Beginning Balance 4,493    
Adoption of ASC 842 0    
Restructuring (income) expense (70)    
Payments (1,852)    
Accrued Ending Balance 2,571   4,493
2018 Restructuring Plan | Short-term lease exit and other direct costs      
Restructuring Reserve [Roll Forward]      
Accrued Beginning Balance 708    
Adoption of ASC 842 (708)    
Restructuring (income) expense 0    
Payments 0    
Accrued Ending Balance 0   708
2018 Restructuring Plan | Long-term lease exit and other direct costs      
Restructuring Reserve [Roll Forward]      
Accrued Beginning Balance 1,810    
Adoption of ASC 842 (1,810)    
Restructuring (income) expense 0    
Payments 0    
Accrued Ending Balance $ 0   $ 1,810