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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

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

The Company’s contract balances were as follows:

	As of
(In thousands)	December 31, 2018				January 1, 2018
Unbilled receivables	$	673,616			$	818,371
Deferred revenue	19,566				20,737

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- References

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- Definition

Tabular disclosure of contract balances and changes in contract balances.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045

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