Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 25, 2011	Dec. 26, 2010	Dec. 27, 2009
Operating activities:
Net income (loss)	$ (24.2)	$ 14.5	$ (41.5)
Less: Loss from discontinued operations	(0.7)	(0.1)	(3.2)
Income (loss) from continuing operations	(23.5)	14.6	(38.3)
Adjustments to reconcile income (loss) from continuing operations to net cash provided by operating activities from continuing operations:
Depreciation and amortization	48.0	12.9	8.3
Deferred income taxes	(0.1)	(14.4)
Accrual for litigation settlement			(0.5)
Goodwill impairment charges			41.3
Amortization of premium on Senior Secured Notes	(2.8)
Amortization of deferred financing costs	3.8	5.0	0.7
Provision for doubtful accounts	1.8	0.4	0.4
Stock-based compensation	3.3	1.9	1.7
Mark to market on swaps	(0.3)	(1.0)	(0.1)
Change in accrual for excess facilities			0.6
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	(14.4)	2.9	17.4
Inventoried costs	4.3	2.9	0.2
Prepaid expenses	1.4	(2.9)	1.3
Other assets	1.3	3.2	4.6
Accounts payable	(15.8)	8.7	1.8
Accrued expenses	4.1	(9.4)	(4.0)
Accrued compensation	(3.8)	3.4	1.4
Billings in excess of costs and earnings on uncompleted contracts	(1.8)	3.2	(3.9)
Accrual for contingent acquisition consideration			(0.1)
Income tax receivable and payable	(0.2)	(0.3)	0.5
Other liabilities	(0.1)	(2.8)	(7.1)
Net cash provided by operating activities from continuing operations	5.2	28.3	26.2
Investing activities:
Cash paid for acquisitions, net of cash acquired	(391.1)	(206.5)	(1.1)
Cash paid for contingent acquisition consideration		(0.4)	(3.6)
Proceeds (payments) from the disposition of discontinued operations		0.1	(2.4)
Cash transferred from (to) restricted cash	3.0	(0.1)
Capital expenditures	(7.5)	(2.3)	(0.4)
Net cash used in investing activities from continuing operations	(395.6)	(209.2)	(7.5)
Financing activities:
Proceeds from issuance of common stock, net of issuance costs	61.1	24.7	17.5
Proceeds from exercise of restricted stock units, employee stock options, and employee stock purchase plan	2.0	1.7	0.6
Proceeds from issuance of long-term debt	425.7	225.0
Payments of subordinated debt		(0.5)	(2.1)
Borrowings under credit facility		61.9	22.5
Repayments under credit facility	(2.7)	(119.6)	(46.9)
Repayment of capital lease obligations	(0.7)	(0.3)	(0.2)
Purchase of treasury stock	(10.9)
Debt issuance costs	(22.1)	(11.0)	(0.5)
Net cash provided by (used in) financing activities from continuing operations	452.4	181.9	(9.1)
Net cash flows from continuing operations	62.0	1.0	9.6
Net operating cash flows from discontinued operations	(2.7)	(0.1)	(3.4)
Effect of exchange rate changes on cash and cash equivalents	(0.5)
Net increase in cash and cash equivalents	58.8	0.9	6.2
Cash and cash equivalents at beginning of year	10.8	9.9	3.7
Cash and cash equivalents at end of year	69.6	10.8	9.9
Supplemental disclosure of cash flow information:
Cash paid during the year for interest	46.2	15.4	7.7
Net cash paid during the year for income taxes	1.5	0.9	0.3
Non-cash investing and financing activities:
Common stock and stock options issued for acquisitions	111.6	24.7
Paid-in capital for contingent acquisition consideration			(0.3)
Liability for contingent cash consideration	1.8	5.8
Supplemental disclosures of non-cash investing and financing transactions:
Fair value of assets acquired in acquisitions	731.3	304.9
Liabilities assumed in acquisitions	$ 197.2	$ 87.6