Quarterly report pursuant to Section 13 or 15(d)

Other Assets (Details)

v3.19.3
Other Assets (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Other Assets [Line Items]          
Accumulated amortization of costs to obtain contracts $ (33,684)   $ (33,684)   $ (24,992)
Unbilled receivables 111,269   111,269   81,703
Operating lease right-of-use assets 36,398   36,398   20,257
Other assets 23,645   23,645   39,410
Other assets, total 398,278   398,278   335,685
Amortization cost 3,200 $ 2,200 8,700 $ 6,200  
Customer agreements          
Other Assets [Line Items]          
Costs to obtain contracts- customer agreements 258,169   258,169   219,307
Incentives          
Other Assets [Line Items]          
Costs to obtain contracts- customer agreements $ 2,481   $ 2,481   $ 0