XML 68 R30.htm IDEA: XBRL DOCUMENT v2.4.0.8
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Comprehensive Income (Loss) (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Net income $ 129,705 $ 7,165 $ 102,561 $ 8,540
Other comprehensive income (loss):        
Realized gains on marketable securities reclassified to gain on sale of marketable securities, net of a benefit from income taxes of $2,757 in 2013 and $9,318 in 2012     (5,120) (17,303)
Unrealized gain from derivatives, net of benefit from income taxes of $161        (298)
Unrealized gains (losses) on marketable securities, net of provision for (benefit for) from income taxes of $0 and $377 in 2013 and $(682) and $1,843 in 2012   (1,268) 702 3,423
Comprehensive income (loss) $ 129,705 $ 5,897 $ 98,143 $ (5,638)