XML 65 R54.htm IDEA: XBRL DOCUMENT v3.20.2
Contract Assets and Liabilities - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]      
Unbilled receivables $ 840,000   $ 851,000
Contract work in progress 471,000   387,000
Contract assets 1,310,686   1,238,173
Advance billings deducted from contract assets 515,000   $ 574,000
Revenue recognized during the year that was included in contract liabilities as of January 1 $ 543,000 $ 581,000