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Debt (Schedule Of Interest Expense, Net) (Detail) (USD $) | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Debt Instrument [Line Items] |  |
Interest expense, net | $ 10,045,000 | $ 8,951,000
Segment, Continuing Operations [Member] |  |
Debt Instrument [Line Items] |  |
Contractual and other interest expense | 7,600,000 | 6,500,000
Accretion of senior convertible note discount | 1,300,000 | 1,200,000
Amortization of deferred financing costs and commitment fees | 1,300,000 | 1,400,000
Total interest expense | 10,100,000 | 9,100,000
Interest income | (100,000) | (100,000)
Interest expense, net | $ 10,000,000 | $ 9,000,000

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