Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail)

v2.4.0.6
Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Deferred Tax Liability Not Recognized [Line Items]    
Beginning balance $ 10,948 $ 9,325
Additions for current year tax positions 464 595
Additions for prior year tax positions 24 2,206
Reductions for prior year tax positions (6) (177)
Settlement of uncertain tax positions (301) (1,001)
Reductions related to lapse of statute of limitations (908) 0
Ending balance $ 10,221 $ 10,948