CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014
Operating activities:
Net income (loss)	$ 23.8	$ (75.8)
(Income) loss from discontinued operations	(50.0)	2.9
Loss from continuing operations	(26.2)	(72.9)
Adjustments to reconcile loss from continuing operations to net cash used in operating activities from continuing operations:
Depreciation and amortization	19.5	24.2
Stock-based compensation	5.5	7.4
Deferred income taxes	3.3	(0.4)
Amortization of deferred financing costs	1.5	2.5
Amortization of premium and discount on Senior Secured Notes	0.9	(1.1)
Loss on extinguishment of debt	3.4	39.1
Non-cash income tax benefit	(16.1)	0.0
Provision for doubtful accounts	0.5	1.2
Changes in unused office space accrual	0.0	0.2
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	22.3	10.8
Inventoried costs	(9.5)	(5.6)
Prepaid expenses and other assets	(4.0)	1.3
Accounts payable	(17.0)	(10.4)
Accrued compensation	(11.2)	(7.8)
Accrued expenses	(6.1)	(7.9)
Advance payments received on contracts	2.3	0.0
Accrued interest	9.4	11.5
Billings in excess of costs and earnings on uncompleted contracts	(0.3)	(6.7)
Income tax receivable and payable	0.3	2.1
Other liabilities	(1.9)	(2.4)
Net cash used in operating activities from continuing operations	(23.4)	(14.9)
Investing activities:
Cash paid for acquisitions, net of cash acquired	0.0	(2.6)
Change in restricted cash	4.7	(0.1)
Capital expenditures	(8.1)	(8.4)
Proceeds from sale of assets	0.9	0.0
Net cash used in investing activities from continuing operations	(2.5)	(11.1)
Financing activities:
Proceeds from the issuance of long-term debt	0.0	618.5
Extinguishment of long-term debt	(175.0)	(661.5)
Debt issuance costs	0.0	(8.5)
Credit agreement borrowings	0.0	41.0
Proceeds from the sale of employee stock purchase plan shares	4.0	3.9
Deferred acquisition payments	(0.7)	0.0
Repayment of debt	(41.7)	(0.7)
Other	(0.5)	(0.6)
Net cash used in financing activities from continuing operations	(213.9)	(7.9)
Net cash flows of continuing operations	(239.8)	(33.9)
Net operating cash flows of discontinued operations	1.9	(3.1)
Net investing cash flows of discontinued operations	240.3	(1.0)
Effect of exchange rate changes on cash and cash equivalents	(0.1)	(0.1)
Net increase (decrease) in cash and cash equivalents	2.3	(38.1)
Cash and cash equivalents at beginning of period	33.5	54.2
Cash and cash equivalents at end of period	$ 35.8	$ 16.1