Long-Term Obligations (Tables)

6 Months Ended

Jun. 30, 2012

Debt Disclosure [Abstract]

Summary of long-term obligations

	June 30, 2012			December 31, 2011
Revolver	$	—		$	—
Senior term notes at the adjusted Eurodollar rate + 1.75% (2.00% at June 30, 2012)	608,203			573,984
Other debt and capital lease obligations	39,952			44,869
Total debt obligations	648,155			618,853
Less - current portion	(34,974		)	(32,571		)
	$	613,181		$	586,282

Summary of Leverage ratios in effect from time to time

Level	Leverage Ratio	Applicable Margin for Eurodollar Rate Loans	Applicable Revolving Commitment Fee %
I	≥ 2.50:1.00	2.25%	0.50%
II	< 2.50:1.00 and ≥ 1.75:1.00	1.75%	0.375%
III	< 1.75:1.00 and ≥ 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	(1)	$	15,781
2013		35,508
2014		47,344
2015		51,289
2016		458,281
Total		$	608,203

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⁽¹⁾  Relates to the period from July 1, 2012 through December 31, 2012.