Unaudited condensed consolidated statements of cash flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net income	$ 164.0	$ 47.0
Reconciling adjustments:
Depreciation and amortization	89.0	96.5
Stock-based compensation expense	11.4	8.4
Provision for accounts receivable and inventory	7.9	16.6
Deferred income tax benefit	(5.3)	(4.2)
Amortization of deferred financing costs	3.9	6.9
Loss on extinguishment of debt	5.2	0.0
Foreign currency remeasurement loss	2.7	6.7
Changes in assets and liabilities:
Accounts receivable	(106.8)	(80.1)
Inventory	(54.3)	2.3
Accounts payable	30.3	67.0
Accrued interest	(17.7)	60.8
Other assets and liabilities	(5.9)	24.5
Other, net	2.5	0.7
Net cash provided by operating activities	126.9	253.1
Cash flows from investing activities:
Capital expenditures	(15.1)	(12.6)
Other	0.5	0.7
Net cash used in investing activities	(14.6)	(11.9)
Cash flows from financing activities:
Debt repayments	(208.6)	(63.8)
Payments of dividends on preferred stock	(16.1)	(16.1)
Proceeds received from exercise of stock options	19.9	6.8
Shares repurchased to satisfy employee tax obligations for vested stock-based awards	(16.2)	0.0
Net cash used in financing activities	(221.0)	(73.1)
Effect of currency rate changes on cash	(5.4)	(8.5)
Net change in cash and cash equivalents	(114.1)	159.6
Cash, cash equivalents and restricted cash, beginning of period	289.2	189.3
Cash, cash equivalents and restricted cash, end of period	$ 175.1	$ 348.9