Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Contract Balances (Details)

v3.19.1
Revenue Recognition - Contract Balances (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Revenue from Contract with Customer [Abstract]    
Trade receivables, net $ 12,438 $ 13,121
Contract assets, net - current portion 13,072 13,452
Contract assets, net - long-term portion 14,634 16,154
Deferred revenue $ 12,698 $ 13,060