Summary Of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2011

Summary Of Significant Accounting Policies

Schedule Of Financial Instruments Where Carrying Value And Fair Value Differ

			Fair Value at Reporting Date Using
Financial Instrument	As of June 30, 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	$	163.3	$	—	$	171.3	$	—

Schedule Of Weighted-Average Shares Outstanding

	For the Three-Month Periods Ended June 30,				For the Six-Month Periods Ended June 30,
	2011		2010		2011		2010
Weighted average number of shares outstanding - basic		28,625		28,106		28,495		27,963
Effect of dilutive securities:
Stock options		80		151		86		163
Non-vested stock and stock units		305		340		357		352
Weighted average number of shares outstanding - diluted		29,010		28,597		28,938		28,478
Anti-dilutive securities		2		53		—		—