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Unearned Revenue Unearned Revenues (Notes)
3 Months Ended
Mar. 31, 2020
Unearned Revenue [Abstract]  
Deferred Revenue Disclosure [Text Block] UNEARNED REVENUES
Accounting Standards Codification ("ASC") Topic 606, “Revenue from Contracts with Customers” (“Topic 606”) requires the deferral of incremental costs to obtain customer contracts, known as contract assets, which are then amortized to expense as part of selling, general and administrative expense over the respective periods of expected benefit. Such costs are not material; however, the Company has implemented processes and controls to record such costs on an ongoing basis and will disclose them if they become material.

The Company records deferred revenues when cash payments are received or due in advance of its performance. The increase in the deferred revenue balance for the first quarter of 2020 is primarily driven by $19.0 million of cash payments received in the current year for which the Company has not yet satisfied the performance obligations, largely offset by $15.7 million of revenues recognized that were included in the deferred revenue balance as of December 31, 2019.