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v3.20.1

Contract Assets (Tables) | 3 Months Ended
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Mar. 31, 2020
Contract Assets |
Changes In Contract Assets | Significant changes in the contract asset balance during the period are as follows:
| Three Months Ended
| March 31,
(in thousands) |  | 2020 |  |  | 2019
Beginning balance as of December 31, | $ | 161,061 |  | $ | 140,082
Revenue recognized |  | 464,727 |  |  | 564,889
Amounts collected or invoiced |  | (465,826) |  |  | (547,946)
Ending balance as of March 31, | $ | 159,962 |  | $ | 157,025

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045 + Details
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