Annual report pursuant to Section 13 and 15(d)

Quarterly Information (Unaudited) (Details)

v2.4.1.9
Quarterly Information (Unaudited) (Details) (USD $)
In Thousands, except Share data, 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
Quarterly Financial Information Disclosure [Abstract]                      
Net revenues $ 181,061us-gaap_SalesRevenueNet $ 168,891us-gaap_SalesRevenueNet $ 142,558us-gaap_SalesRevenueNet $ 100,731us-gaap_SalesRevenueNet $ 176,134us-gaap_SalesRevenueNet $ 161,648us-gaap_SalesRevenueNet $ 126,253us-gaap_SalesRevenueNet $ 110,136us-gaap_SalesRevenueNet $ 593,241us-gaap_SalesRevenueNet $ 574,171us-gaap_SalesRevenueNet $ 631,171us-gaap_SalesRevenueNet
Gross Profit 36,418us-gaap_GrossProfit 35,024us-gaap_GrossProfit 27,936us-gaap_GrossProfit 17,554us-gaap_GrossProfit 28,360us-gaap_GrossProfit 30,063us-gaap_GrossProfit 23,383us-gaap_GrossProfit 21,519us-gaap_GrossProfit 116,932us-gaap_GrossProfit 103,325us-gaap_GrossProfit 128,147us-gaap_GrossProfit
Net (loss) income $ 8,654us-gaap_NetIncomeLoss $ 7,291us-gaap_NetIncomeLoss $ 2,719us-gaap_NetIncomeLoss $ (8,281)us-gaap_NetIncomeLoss $ 1,574us-gaap_NetIncomeLoss $ 4,545us-gaap_NetIncomeLoss $ (1,781)us-gaap_NetIncomeLoss $ (1,924)us-gaap_NetIncomeLoss $ 10,383us-gaap_NetIncomeLoss $ 2,414us-gaap_NetIncomeLoss $ 18,360us-gaap_NetIncomeLoss
Net (loss) income per share attributable to common shareholders:                      
Basic (in usd per share) $ 0.19us-gaap_EarningsPerShareBasic $ 0.16us-gaap_EarningsPerShareBasic $ 0.06us-gaap_EarningsPerShareBasic $ (0.18)us-gaap_EarningsPerShareBasic $ 0.03us-gaap_EarningsPerShareBasic $ 0.10us-gaap_EarningsPerShareBasic $ (0.04)us-gaap_EarningsPerShareBasic $ (0.04)us-gaap_EarningsPerShareBasic $ 0.22us-gaap_EarningsPerShareBasic $ 0.05us-gaap_EarningsPerShareBasic $ 0.41us-gaap_EarningsPerShareBasic
Diluted (in usd per share) $ 0.18us-gaap_EarningsPerShareDiluted $ 0.16us-gaap_EarningsPerShareDiluted $ 0.06us-gaap_EarningsPerShareDiluted $ (0.18)us-gaap_EarningsPerShareDiluted $ 0.03us-gaap_EarningsPerShareDiluted $ 0.10us-gaap_EarningsPerShareDiluted $ (0.04)us-gaap_EarningsPerShareDiluted $ (0.04)us-gaap_EarningsPerShareDiluted $ 0.22us-gaap_EarningsPerShareDiluted $ 0.05us-gaap_EarningsPerShareDiluted $ 0.40us-gaap_EarningsPerShareDiluted
Weighted average common shares outstanding:                      
Basic (in shares) 46,350,835us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 46,315,968us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 46,064,049us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 45,909,995us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 45,819,906us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 45,621,552us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 45,465,529us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 45,327,237us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 46,161,846us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 45,560,078us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 44,649,275us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Diluted (in shares) 47,006,314us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 46,987,522us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 46,573,691us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 45,909,995us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 46,649,171us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 46,605,360us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 45,465,529us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 45,327,237us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 46,718,140us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 46,419,199us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 45,995,463us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding