Amortizable intangibles

12 Months Ended

Dec. 31, 2011

Amortizable intangibles

7. Amortizable intangibles

Amortizable intangible assets were comprised of the following:

	December 31,
	2011			2010
Noncompetition and other agreements	$	335,012		$	309,405
Lease agreements		8,081			8,466
Deferred debt financing costs		66,011			61,405
		409,104			379,276
Less accumulated amortization		(249,613	)		(216,641	)
Total amortizable intangible assets	$	159,491		$	162,635

Amortizable intangible liabilities were comprised of the following:

	December 31,
	2011			2010
Alliance and product supply agreement commitment (See Note 22)	$	68,200		$	68,200
Less accumulated amortization		(48,213	)		(42,883	)
	$	19,987		$	25,317

Net amortization expense from noncompetition and other agreements and the amortizable intangible liabilities was $17,568, $15,064 and $14,739 for 2011, 2010 and 2009, respectively. Lease agreements which are amortized to rent expense were $361 in 2011, $480 in 2010 and $565 in 2009, respectively. Deferred debt issuance costs are amortized to debt expense as described in Note 13 to the consolidated financial statements.

Scheduled amortization charges from intangible assets and liabilities as of December 31, 2011 were as follows:

	Noncompetition and other agreements		Deferred debt financing costs		Alliance and Product Supply Agreement liability
2012		24,453		10,552		(5,330	)
2013		21,928		10,260		(5,330	)
2014		19,724		9,747		(5,330	)
2015		15,761		8,514		(3,997	)
2016		6,669		5,017		—
Thereafter		17,520		9,346		—