Annual report pursuant to Section 13 and 15(d)

Accumulated Other Comprehensive Income (Reclassification Out Of Accumulated Other Comprehensive Income) (Details)

v2.4.1.9
Accumulated Other Comprehensive Income (Reclassification Out Of Accumulated Other Comprehensive Income) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Sales $ (59,425)us-gaap_SalesRevenueGoodsNet $ (54,861)us-gaap_SalesRevenueGoodsNet $ (34,422)us-gaap_SalesRevenueGoodsNet $ (44,432)us-gaap_SalesRevenueGoodsNet $ (54,149)us-gaap_SalesRevenueGoodsNet $ (44,181)us-gaap_SalesRevenueGoodsNet $ (29,162)us-gaap_SalesRevenueGoodsNet $ (40,617)us-gaap_SalesRevenueGoodsNet $ (193,140)us-gaap_SalesRevenueGoodsNet $ (168,109)us-gaap_SalesRevenueGoodsNet $ (145,323)us-gaap_SalesRevenueGoodsNet
Income tax benefit                 (3,551)us-gaap_IncomeTaxExpenseBenefit (5,369)us-gaap_IncomeTaxExpenseBenefit (3,464)us-gaap_IncomeTaxExpenseBenefit
Amount reclassified net of tax                 (239)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax    
Reclassification Out Of Accumulated Other Comprehensive Income [Member]                      
Sales                 (228)us-gaap_SalesRevenueGoodsNet
/ us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis
= us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
   
Other, net                 153us-gaap_OtherNonoperatingIncome
/ us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis
= us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
   
Income tax benefit                 142us-gaap_IncomeTaxExpenseBenefit
/ us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis
= us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
   
Amount reclassified net of tax                 $ (239)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
/ us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis
= us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember