Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail)

v2.4.1.9
Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]  
Beginning balance $ (12,209)us-gaap_UnrecognizedTaxBenefits
Additions based on tax positions taken during a prior period (3,862)us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
Additions based on tax positions taken during the current period (385)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
Reductions related to settlement of tax matters 6,088us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
Reductions based on tax positions taken during a prior period 2,169us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
Ending balance $ (8,199)us-gaap_UnrecognizedTaxBenefits