| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Cash flows from operating activities: | | | | | | | | |
| Net income (loss) | 30.3 | 10.3 | -594.7 | 39.1 | -10.6 | -264.7 | | -154.3 |
| Adjustments to reconcile net income (loss) to net cash from operating activities: | | | | | | | | |
| Depreciation and amortization | 236.7 | 238.8 | 239.0 | 231.4 | 213.7 | 166.6 | 155.1 | 85.2 |
| Provision for expected credit losses | -0.7 | -2.7 | 3.7 | 1.1 | 0.6 | -1.8 | -0.6 | |
| Amortization of debt issuance costs | 7.3 | 9.8 | 8.4 | 7.6 | 5.1 | | | 1.7 |
| Unit-based compensation expense | 15.9 | 15.5 | 8.4 | 10.8 | 11.7 | 4.0 | 3.5 | 3.9 |
| Deferred income tax expense (benefit) | -0.2 | 0.0 | 0.5 | 1.4 | -2.7 | 1.8 | -0.2 | |
| Loss (gain) on disposition of assets | 1.5 | -2.6 | 0.1 | 0.9 | 13.0 | -0.4 | 0.1 | -1.0 |
| Impairment of compression equipment | 1.5 | 5.1 | 8.1 | 5.9 | 8.7 | | | 27.3 |
| Impairment of goodwill | | | 619.4 | | | 223.0 | | 172.2 |
| Changes in assets and liabilities: | | | | | | | | |
| Accounts receivable and related-party receivables, net | 30.0 | 0.1 | 23.5 | -5.7 | -50.0 | 9.3 | 25.6 | -0.4 |
| Inventories | -31.6 | -12.6 | -11.7 | -25.1 | -6.7 | -0.7 | -0.5 | -14.3 |
| Prepaid expenses and other current assets | -2.8 | -3.6 | -0.2 | -0.6 | 9.3 | -3.6 | -0.2 | |
| Other assets | 3.5 | 3.5 | 3.2 | 2.6 | -0.1 | 0.0 | 0.0 | 0.0 |
| Accounts payable | 7.5 | 9.0 | -3.7 | -5.8 | -5.1 | 2.5 | -2.3 | -3.3 |
| Accrued liabilities and deferred revenue | -38.4 | -5.2 | -10.7 | 36.9 | | | | |
| Other liabilities | | | 0.0 | 0.0 | -4.9 | 0.2 | -1.8 | |
| Net cash provided by operating activities | 260.6 | 265.4 | 293.2 | 300.6 | 226.3 | 136.0 | 130.1 | 117.4 |
| |
| Cash flows from investing activities: | | | | | | | | |
| Capital expenditures, net | -134.2 | -45.2 | -109.1 | -171.1 | -266.6 | -157.3 | -61.6 | -281.1 |
| Proceeds from disposition of property and equipment | 3.7 | 4.5 | 2.6 | 22.5 | 7.5 | 14.8 | 24.8 | 1.7 |
| Proceeds from insurance recovery | 0.6 | 1.6 | 1.3 | 4.2 | 0.4 | | | 1.2 |
| Net cash used in investing activities | -129.9 | -39.2 | -105.1 | -144.5 | -779.7 | -142.5 | -36.8 | -278.2 |
| |
| Cash flows from financing activities: | | | | | | | | |
| Proceeds from revolving credit facility | 844.5 | 697.7 | 777.5 | 852.3 | 697.7 | | | |
| Payments on revolving credit facility | -714.9 | -655.1 | -706.4 | -1,499.1 | -467.2 | | | |
| Cash paid related to net settlement of unit-based awards | -3.0 | -3.2 | -1.1 | | | | | |
| Cash distributions | | | | | | | -90.4 | |
| Deferred financing costs | -0.5 | -10.0 | -3.9 | -13.7 | -17.7 | | | -3.4 |
| Other | -0.5 | -0.6 | -0.8 | -1.0 | | | | |
| Net cash used in financing activities | -130.6 | -226.2 | -188.1 | -156.2 | 549.4 | -3.7 | -90.4 | 160.8 |
| Increase (decrease) in cash and cash equivalents | 0.0 | 0.0 | 0.0 | | | | | |
| |
| Supplemental cash flow information: | | | | | | | | |
| Cash paid for interest, net of capitalized amounts | 129.0 | 120.6 | 120.7 | 105.4 | 61.0 | | | 17.1 |
| Cash paid for income taxes | 0.9 | 0.8 | 0.6 | 0.5 | 0.2 | | | 0.3 |
| Supplemental non-cash transactions: | | | | | | | | |
| Non-cash distributions to certain common unitholders (DRIP) | 2.1 | 1.8 | 1.9 | 1.0 | 0.6 | | | |
| Transfers from inventories to property and equipment | 22.3 | 10.8 | 17.4 | 21.8 | | | | |
| Changes in capital expenditures included in accounts payable and accrued liabilities | 6.5 | 0.7 | -8.6 | | | | | |
| Changes in financing costs included in accounts payable and accrued liabilities | -0.3 | 0.4 | 0.1 | | | | | |
| Exercise and conversion of warrants into common units | 5.2 | | | | | | | |