Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities
Net loss	$ (230.7)	$ (94.1)
Less: Loss from discontinued operations, net of tax	(149.9)	(55.4)
Loss from continuing operations	(80.8)	(38.7)
Adjustments to reconcile net loss to cash provided by operating activities
Share-based compensation expense	1.7	2.5
Depreciation and amortization	26.0	20.2
Amortization of deferred financing costs and debt discount	9.4	10.6
Amortization of discount on investments, net	0.0	(0.1)
Loss on extinguishment of debt	12.5	9.2
Loss from equity investees	4.8	4.0
Asset impairment expense	2.7	11.2
Net realized and unrealized gains on investments	0.0	(72.5)
Deferred income taxes	1.1	(3.3)
Other operating activities	(5.0)	3.0
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	(127.9)	41.4
Contract assets on uncompleted contracts	(15.0)	2.3
Other current assets	(0.4)	(10.7)
Other assets	6.1	5.0
Accounts payable	65.7	6.1
Accrued liabilities	6.7	27.4
Contract liabilities on uncompleted contracts	54.2	9.7
Other current liabilities	(2.8)	(21.0)
Other liabilities	(7.1)	(13.1)
Cash used in operating activities	(48.1)	(6.8)
Cash provided by discontinued operating activities	33.5	84.2
Cash (used in) provided by continuing operating activities	(14.6)	77.4
Cash flows from investing activities
Purchase of property, plant and equipment	(15.0)	(14.6)
Proceeds from disposal of property, plant and equipment	12.5	0.6
Sale of investments	0.0	0.7
Sale of equity method investments	0.0	85.5
Cash received from dispositions, net of cash disposed	74.0	144.0
Extraordinary dividend received in business disposition	62.5	0.0
Cash paid for acquisitions, net of cash acquired	(128.5)	0.0
Other investing activities	0.9	5.2
Cash provided by investing activities	6.4	221.4
Cash used in discontinued investing activities	(221.3)	(151.0)
Cash (used in) provided by continuing investing activities	(214.9)	70.4
Cash flows from financing activities
Proceeds from debt obligations	529.8	1.7
Principal payments on debt obligations	(454.8)	(155.3)
Cash received by subsidiary to issue preferred stock	10.5	15.6
Redemption of preferred stock	(10.4)	0.0
Transactions with noncontrolling interests	(9.5)	(62.9)
Other financing activities	(3.4)	(4.8)
Cash provided by (used in) financing activities	62.2	(205.7)
Cash used in discontinued financing activities	(7.6)	(18.1)
Cash provided by (used in) continuing financing activities	54.6	(223.8)
Effects of exchange rate changes on cash, cash equivalents and restricted cash	(1.7)	0.7
Net decrease in cash and cash equivalents, including restricted cash and cash classified within assets held for sale	(176.6)	(75.3)
Less: Net decrease in cash and cash equivalents from discontinued operations	(195.4)	(80.4)
Net change in cash, cash equivalents and restricted cash	18.8	5.1
Cash, cash equivalents and restricted cash, beginning of period	45.3	24.7
Cash, cash equivalents and restricted cash, end of period	$ 64.1	$ 29.8