Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2019

Revenue Recognition from Contracts with Customers [Abstract]

Contract with Customer, Asset and Liability [Table Text Block]

The Company’s contract balances were as follows:

	As of
(In thousands)	June 30, 2019		December 31, 2018
Unbilled receivables	$	597,429	$	673,616
Deferred revenue	6,448		19,566