| Assets | — | — |
| Current assets | — | — |
| Cash, cash equivalents and restricted cash | 383.3a | 220.91a |
| Accounts receivable, net of allowance for credit losses of $8,515 and $4,066, respectively | 165.92a | 157.32a |
| Refundable income taxes | 9.29a | 3.09a |
| Prepaid expenses | 23.05a | 17.22a |
| Inventory | 21.54a | 17.86a |
| Other current assets | 10.21a | 9.92a |
| Total current assets | 613.31a | 426.33a |
| Property and equipment, net of accumulated depreciation and amortization of $1,302,324 and $1,167,541, respectively | 1,164.82a | 980.55a |
| Operating lease right-of-use assets | 98.05a | 100.84a |
| Goodwill | 1,002.27a | 735.67a |
| Intangible assets, net | 313.47a | 241.43a |
| Restricted assets | 2.5a | 2.2a |
| Cost method investments | 10.97a | 10.97a |
| Deferred income taxes | 0a | 11.22a |
| Other non-current assets | 24.7a | 26.26a |
| Total assets | 3,230.07a | 2,535.47a |
| Liabilities and stockholders' equity | — | — |
| Current liabilities | — | — |
| Current maturities of debt | 42.62a | 35.78a |
| Current operating lease liabilities | 10.29a | 9.04a |
| Accounts payable | 111.09a | 116.79a |
| Accrued payroll and related expenses | 32.62a | 22.66a |
| Accrued interest | 2.12a | 3.89a |
| Contract liabilities | 50.69a | 31.47a |
| Current accrued capping, closure and post-closure costs | 3.22a | 10.77a |
| Other accrued liabilities | 54.67a | 48.46a |
| Total current liabilities | 307.32a | 278.86a |
| Debt, less current portion | 1,090.63a | 1,007.66a |
| Operating lease liabilities, less current portion | 64.45a | 66.07a |
| Accrued capping, closure and post-closure costs, less current portion | 169.01a | 123.13a |
| Deferred income taxes | 19.09a | 0.63a |
| Other long-term liabilities | 28.74a | 37.33a |
| Stockholders' equity | — | — |
| Class A common stock, $0.01 par value per share; 100,000,000 shares authorized; 62,370,000 and 57,007,000 shares issued and outstanding, respectively | 0.62a | 0.57a |
| Class B common stock, $0.01 par value per share; 1,000,000 shares authorized; 988,000 shares issued and outstanding; 10 votes per share | 0.01a | 0.01a |
| Additional paid-in capital | 1,679.88a | 1,168.81a |
| Accumulated deficit | -132.99a | -146.52a |
| Accumulated other comprehensive income (loss), net of tax | 3.31a | -1.08a |
| Total stockholders' equity | 1,550.84a | 1,021.79a |
| Total liabilities and stockholders' equity | 3,230.07a | 2,535.47a |