| (in thousands) | 2017 | 2018 | 2019 | 
                    
                        | Net Patient Service Revenue | 
                    
                        | Net Patient Service Revenue (Gross of Uncollectible Accounts) | $ 1,319.9 | $ 1,442.6 | $ 1,835.9 | 
                    
                        | Provision for Uncollectible Accounts | (363.6) | (367.8) | (679.4) | 
                    
                        | Net Patient Service Revenue (Net of Provision for Uncollectible Accounts) | 956.3 | 1,074.8 | 1,156.5 | 
                    
                        | Other Revenue | 118.0 | 130.8 | 138.5 | 
                    
                        | Total Revenue | 1,074.3 | 1,205.6 | 1,295.0 | 
                    
                        | Salaries & Benefits | 470.0 | 541.1 | 583.7 | 
                    
                        | Supplies & Other Expenses | 564.9 | 631.9 | 676.0 | 
                    
                        | Depreciation & Interest | 55.0 | 61.0 | 65.6 | 
                    
                        | Total Expenses | 1,089.9 | 1,234.0 | 1,325.3 | 
                    
                        | Shortfall Before County Contributions | (15.6) | (28.4) | (30.3) | 
                    
                        | County Contributions | 55.4 | 55.4 | 55.4 | 
                    
                        | Operating Margin | 39.8 | 27.0 | 25.1 | 
                    
                        | Non-Operating Margin | 1.5 | 2.7 | 4.7 | 
                    
                        | Excess or (Shortfall) | $ 41.3 | $ 29.7 | $ 29.8 |