| In millions, except per share items | Mar-31-20 | Dec-31-19 | Sep-30-19 | Jun-30-19 | Mar-31-19 | Dec-31-18 | Sep-30-18 | Jun-30-18 |
| | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Revenues: | | | | | | | | |
| Revenues | 448.2 | 466.8 | 464.3 | 459.0 | 452.6 | 443.1 | 434.9 | 423.4 |
| Revenues growth | -1.0% | 5.3% | 6.7% | 8.4% | 10.1% | 9.9% | 10.4% | 7.5% |
| Operating Expenses: | | | | | | | | |
| Payroll and related | 176.9 | 180.9 | 180.2 | 177.3 | 174.2 | 168.3 | 158.1 | 153.0 |
| Club operating | 219.7 | 219.1 | 213.5 | 207.8 | 202.9 | 197.7 | 193.8 | 189.8 |
| General and administrative | 30.1 | 27.8 | 26.3 | 26.1 | 26.0 | 25.0 | 24.6 | 23.3 |
| Depreciation and amortization | 37.3 | 38.2 | 38.6 | 38.3 | 37.9 | 37.4 | 38.6 | 39.3 |
| Impairment of fixed assets | 54.0 | | 7.2 | | | | 2.1 | |
| Impairment of intangible assets | 17.4 | | | | | | | |
| Total operating expenses | 598.3 | 473.2 | 465.8 | 451.6 | 443.1 | 430.6 | 417.1 | 411.9 |
| Operating (loss) income | -150.1 | -6.5 | -1.5 | 7.3 | 9.5 | 12.5 | 17.8 | 11.6 |
| Operating margin | -33.5% | -1.4% | -0.3% | 1.6% | 2.1% | 2.8% | 4.1% | 2.7% |
| Interest expense | -12.5 | -13.0 | -13.4 | -13.7 | -13.8 | -13.5 | -13.2 | -12.9 |
| Interest income | 0.0 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.2 | -0.2 |
| Equity in the earnings of investees | -0.3 | -0.3 | -0.3 | -0.3 | -0.3 | -0.2 | -0.2 | -0.2 |
| Loss before (benefit) provision for corporate income taxes | -162.3 | -19.1 | -14.5 | -5.9 | -3.8 | -0.5 | 5.1 | -0.8 |
| (Benefit) provision for corporate income taxes | -8.5 | 0.2 | -0.8 | -0.3 | -0.4 | -0.4 | -13.6 | -10.3 |
| Net loss including non-controlling interests | -153.8 | -19.3 | -13.7 | -5.6 | -3.5 | -0.1 | 18.8 | 9.4 |
| Less: net loss attributable to non-controlling interests | -1.0 | -0.7 | -0.8 | -0.5 | -0.4 | -0.2 | 0.0 | |
| Net loss attributable to Town Sports International Holdings, Inc. and subsidiaries | -152.8 | -18.6 | -12.9 | -5.1 | -3.1 | 0.1 | 18.8 | 9.4 |
| |
| Loss per share: | | | | | | | | |
| Basic (in dollars per share) | ($5.60) | ($0.70) | ($0.48) | ($0.19) | ($0.12) | $0.00 | $0.74 | $0.36 |
| Diluted (in dollars per share) | ($5.60) | ($0.70) | ($0.48) | ($0.19) | ($0.12) | $0.00 | $0.74 | $0.36 |
| |
| Weighted average number of shares used in calculating loss per share: | | | | | | | | |
| Basic (in shares) | 26.8 | 26.6 | 26.4 | 26.2 | 26.0 | 25.8 | 25.7 | 25.5 |
| Diluted (in shares) | 26.8 | 26.6 | 26.5 | 26.3 | 26.3 | 26.3 | 26.2 | 26.0 |