Quarterly report pursuant to Section 13 or 15(d)

Derivative Financial Instruments - Gain (Loss) on Derivatives (Details)

v3.19.3
Derivative Financial Instruments - Gain (Loss) on Derivatives (Details) - Cash flow hedges - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Swap agreements, net of tax        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (Loss) Recognized in OCI $ (71)   $ (1,737)  
Gain (Loss) Recognized in OCI   $ 44   $ 410
Foreign currency forward contracts, net of tax        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (Loss) Recognized in OCI (72)   17  
Gain (Loss) Recognized in OCI   0   0
Interest expense and other | Swap agreements, net of tax        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain Recognized in Income 132   565  
Gain Recognized in Income   170   413
Cost of revenue and operating expenses | Foreign currency forward contracts, net of tax        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain Recognized in Income $ 3   $ 13  
Gain Recognized in Income   $ 0   $ 0