Restatement Of Condensed Consolidated Financial Statements (Condensed Consolidated Statements Of Changes In Stockholders' Equity) (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011 As Reported [Member]	Jun. 30, 2011 As Reported [Member] Common Stock [Member]	Jun. 30, 2011 As Reported [Member] Treasury Stock [Member]	Jun. 30, 2011 As Reported [Member] Additional Paid In Capital [Member]	Jun. 30, 2011 As Reported [Member] Accumulated Deficit [Member]	Jun. 30, 2011 As Reported [Member] Accumulated Other Comprehensive Income Of Continuing Operations [Member]	Jun. 30, 2011 Adjustment [Member]	Jun. 30, 2011 Adjustment [Member] Common Stock [Member]	Jun. 30, 2011 Adjustment [Member] Treasury Stock [Member]	Jun. 30, 2011 Adjustment [Member] Additional Paid In Capital [Member]	Jun. 30, 2011 Adjustment [Member] Accumulated Deficit [Member]	Jun. 30, 2011 Adjustment [Member] Accumulated Other Comprehensive Income Of Continuing Operations [Member]	Jun. 30, 2011 Restated [Member]	Jun. 30, 2011 Restated [Member] Common Stock [Member]	Jun. 30, 2011 Restated [Member] Treasury Stock [Member]	Jun. 30, 2011 Restated [Member] Additional Paid In Capital [Member]	Jun. 30, 2011 Restated [Member] Accumulated Deficit [Member]	Jun. 30, 2011 Restated [Member] Accumulated Other Comprehensive Income Of Continuing Operations [Member]
Accumulated other comprehensive income	$ 158,108	$ 207,326	$ 1,761,557	$ 727	$ 1,368,202	$ 164,385	$ 228,393	$ (150)	$ (44,546)	$ 0	$ 0	$ (44,252)	$ (294)	$ 0	$ 1,717,011	$ 727	$ 1,368,202	$ 120,133	$ 228,099	$ (150)