Goodwill and Intangible Assets (Narrative) (Detail) (USD $)	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 30, 2012 M	Jun. 30, 2012	Sep. 30, 2011	Jun. 30, 2012	Sep. 30, 2012 M	Sep. 30, 2011
Goodwill and Intangible Assets Disclosure [Abstract]
Percentage of discount rate					18.50%
Percentage of royalty rate					3.00%
Estimated fair value of intangible assets	$ 2,500,000				$ 2,500,000
Impairment of intangible assets	0	3,349,000	0	3,349,000	3,349,000	0
Income from continuing operations and net income		3,300,000		3,300,000	3,300,000
Impact on earnings per share (in dollars per share)	$ 0.10	$ 0.10		$ 0.10
Estimated useful life, intangible assets (in months)	18				18
Amortization expense related to intangible assets	$ 2,385,000		$ 2,458,000		$ 7,007,000	$ 6,886,000

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References+ Details