Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash Flows from Operating Activities:
Net (loss) income	$ (89.2)	$ 13.6
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Loss on divestiture of business	0.0	14.7
Depreciation and amortization expense	66.6	56.8
Deferred income tax expense	79.8	3.6
Payments in excess of expense for postretirement plan benefits	(1.2)	(1.2)
Share-based compensation expense	3.0	3.4
Loss (gain) on extinguishment of debt	20.3	(23.9)
Changes in working capital pertaining to operating activities (net of the effects of divestiture):
Receivables	(4.6)	16.2
Inventories	(23.9)	15.5
Accounts payable	15.6	(5.5)
Accrued liabilities	(6.2)	7.0
Deferred revenue	9.5	18.2
Interest payable	(9.6)	(2.1)
Income taxes	(11.9)	1.9
Other	6.2	3.3
Net cash provided by (used in) operating activities	54.4	121.5
Cash Flows from Investing Activities:
Capital expenditures	(22.4)	(30.2)
Decrease in restricted cash	0.1	15.9
Return of Brazilian investment	20.5	0.0
Divestiture of business	0.0	(12.1)
Other investing activities	0.0	2.1
Net cash used in investing activities	(1.8)	(24.3)
Cash Flows from Financing Activities:
Proceeds from issuance of long-term debt	620.6	0.0
Repayment of long-term debt	(532.2)	(47.0)
Repayment of financing obligation	(1.2)	0.0
Proceeds from revolving credit facility	128.0	20.0
Repayment of revolving credit facility	(200.0)	(60.4)
Debt issuance costs	(15.6)	0.0
Acquisition of additional interest in the Partnership	(24.6)	0.0
Cash distribution to noncontrolling interests	(24.6)	(24.7)
Other financing activities	(0.3)	(0.5)
Net cash (used in) provided by financing activities	(49.9)	(112.6)
Net increase (decrease) in cash and cash equivalents	2.7	(15.4)
Cash and cash equivalents at beginning of period	134.0	123.4
Cash and cash equivalents at end of period	136.7	108.0
Supplemental Disclosure of Cash Flow Information
Interest paid	37.2	30.8
Income taxes paid, net of refunds of $0.1 million and $4.0 million in 2017 and 2016, respectively.	$ 3.1	$ (2.2)