Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2011

Summary Of Significant Accounting Policies [Abstract]

Schedule Of Estimated Useful Lives Of Property And Equipment

	Years
Building	39
Leasehold improvements	Lesser of life of lease or expected useful life
Equipment and furniture	3 to 7
Vehicles	5 to 10
Computer software	3 to 7

Schedule Of Balances Related To Property And Equipment

	As of December 31,
	2011			2010
Land	$	3.2		$	3.2
Building and leasehold improvements		25.2			25.0
Equipment and furniture		117.3			100.6
Computer software		97.1			87.8
		242.8			216.6
Less: accumulated depreciation		(94.3	)		(78.1	)
	$	148.5		$	138.5

Schedule Of Financial Instruments Where Carrying Value And Fair Value Differ

			Fair Value at Reporting Date Using
Financial Instrument	As of December 31, 2011		Quoted Prices in Active Markets for Identical Items (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Long-term obligations, excluding capital leases	$	145.4	$	—	$	152.0	$	—

Schedule Of Weighted-Average Shares Outstanding

	For the Years Ended December 31,
	2011		2010		2009
Weighted average number of shares outstanding—basic		28,693		28,032		27,231
Effect of dilutive securities:
Stock Options		—		125		200
Warrants		—		—		—
Non-vested stock and stock units		—		327		328
Weighted average number of shares outstanding—diluted		28,693		28,484		27,759
Anti-dilutive securities		643		41		3