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Quarterly Financial Information - Summary of Unaudited Quarterly Results of Operations (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Quarterly Financial Data [Abstract]                      
Net revenues $ 65,335 $ 92,673 $ 91,124 $ 85,921 $ 70,675 $ 71,017 $ 102,446 $ 100,150 $ 335,053 $ 344,288 $ 402,862
Gross profit 12,039 20,383 19,024 16,848 13,558 14,646 23,251 20,988 68,294 72,443 84,592
Net loss applicable to common stockholders $ (21,306) $ (5,093) $ (7,892) $ (9,122) $ (14,912) $ (31,933) $ (4,500) $ (37,921) $ (43,413) $ (89,266) $ (24,892)
Basic and diluted net loss per common share $ (0.63) $ (0.15) $ (0.23) $ (0.27) $ (0.44) $ (0.97) $ (0.14) $ (1.17) $ (1.28) $ (2.72) $ (0.78)