Long-Term Obligations (Tables)

12 Months Ended

Dec. 31, 2011

Long-Term Obligations [Abstract]

Summary of long-term obligations

		2011			2010
Senior term notes	Notes payable, maturing in 2016, secured by assets, variable interest rate (LIBOR + 1.75% or 2.0% at December 31, 2011)	$	573,984		$	—
Senior term notes	Notes payable, secured by assets, variable interest rate (LIBOR + 2.25% or 2.5% at December 31, 2010), repaid in 2011		—			493,750
Revolving credit	Revolving line of credit, maturing in 2016, secured by assets, variable interest rate		—			—
Secured seller notes	Notes payable, various maturities through 2013, secured by assets and stock of certain subsidiaries, various interest rates ranging from 9.0% to 10.0%		346			868
	Total debt obligations		574,330			494,618
	Capital lease obligations		44,523			32,418
			618,853			527,036
	Less — current portion		(32,571	)		(28,101	)
		$	586,282		$	498,935

Annual aggregate scheduled maturities of our long-term obligations

	Debt Obligations		Capital Lease Obligations		Total
2012	$	29,372	$	3,199	$	32,571
2013		32,731		3,374		36,105
2014		43,594		3,430		47,024
2015		47,227		3,625		50,852
2016		421,406		3,395		424,801
Thereafter		—		27,500		27,500
Total	$	574,330	$	44,523	$	618,853

Summary of Leverage Ratio in effect from time to time

Level	Leverage Ratio	Applicable Margin for Eurodollar Rate Loans			Applicable Revolving Commitment Fee %
I	³ 2.50:1.00		2.25	%		0.50	%
II	< 2.50:1.00 and ³ 1.75:1.00		1.75	%		0.375	%
III	< 1.75:1.00 and ³ 1.00:1.00		1.50	%		0.25	%
IV	< 1.00:1.00		1.25	%		0.20	%

Scheduled principal payments for senior term notes

	2012		2013		2014		2015		2016
Senior term notes	$	29,063	$	32,695	$	43,594	$	47,227	$	421,405

Summary of cash received or cash paid and unrealized gains or losses

	For Years Ended December 31,
	2011		2010		2009
Cash paid(1)	$	—	$	382	$	9,784
Recognized gain from ineffectiveness(2)	$	—	$	—	$	(70	)

(1) Our interest rate swap agreements effectively converted a certain amount of our variable-rate debt under our senior credit facility to fixed-rate debt for purposes of hedging against the risk of increasing interest rates. The above table depicts cash payments to the counterparties on our swap agreements. These payments are offset by a corresponding decrease in interest paid on our variable-rate debt under our senior credit facility. These amounts are included in interest expense in our consolidated income statements.

(2) These recognized gains are included in other expense (income) in our consolidated income statements.