Annual report pursuant to Section 13 and 15(d)

THREE-FOR-TWO STOCK SPLIT (Details 2)

v2.4.1.9
THREE-FOR-TWO STOCK SPLIT (Details 2) (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
Net Income $ 29,917us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 41,121us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 40,860us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 25,766us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 27,957us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 36,200us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 35,994us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 23,179us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 137,664us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 123,330us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 111,332us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Income per share Basic (in dollars per share) $ 0.21us-gaap_EarningsPerShareBasic $ 0.28us-gaap_EarningsPerShareBasic $ 0.28us-gaap_EarningsPerShareBasic $ 0.18us-gaap_EarningsPerShareBasic $ 0.19us-gaap_EarningsPerShareBasic $ 0.25us-gaap_EarningsPerShareBasic $ 0.25us-gaap_EarningsPerShareBasic $ 0.16us-gaap_EarningsPerShareBasic $ 0.94us-gaap_EarningsPerShareBasic $ 0.84us-gaap_EarningsPerShareBasic $ 0.76us-gaap_EarningsPerShareBasic
Income per share Diluted (in dollars per share) $ 0.21us-gaap_EarningsPerShareDiluted $ 0.28us-gaap_EarningsPerShareDiluted $ 0.28us-gaap_EarningsPerShareDiluted $ 0.18us-gaap_EarningsPerShareDiluted $ 0.19us-gaap_EarningsPerShareDiluted $ 0.25us-gaap_EarningsPerShareDiluted $ 0.25us-gaap_EarningsPerShareDiluted $ 0.16us-gaap_EarningsPerShareDiluted $ 0.94us-gaap_EarningsPerShareDiluted $ 0.84us-gaap_EarningsPerShareDiluted $ 0.76us-gaap_EarningsPerShareDiluted
Weighted average shares outstanding - basic (in shares)                 145,796us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 146,081us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 146,299us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Weighted average shares outstanding - diluted (in shares)                 145,796us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 146,081us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 146,299us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Adjustment [Member]                      
Net Income                       
Income per share Basic (in dollars per share)                 $ (0.31)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
   
Income per share Diluted (in dollars per share)                 $ (0.31)us-gaap_EarningsPerShareDiluted
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
   
Weighted average shares outstanding - basic (in shares)                 72,899us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
   
Weighted average shares outstanding - diluted (in shares)                 72,899us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
   
Pro forma [Member] (Unaudited)                      
Net Income                 $ 137,664us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
/ us-gaap_StatementScenarioAxis
= us-gaap_ProFormaMember
   
Income per share Basic (in dollars per share)                 $ 0.63us-gaap_EarningsPerShareBasic
/ us-gaap_StatementScenarioAxis
= us-gaap_ProFormaMember
   
Income per share Diluted (in dollars per share)                 $ 0.63us-gaap_EarningsPerShareDiluted
/ us-gaap_StatementScenarioAxis
= us-gaap_ProFormaMember
   
Weighted average shares outstanding - basic (in shares)                 218,695us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementScenarioAxis
= us-gaap_ProFormaMember
   
Weighted average shares outstanding - diluted (in shares)                 218,695us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
/ us-gaap_StatementScenarioAxis
= us-gaap_ProFormaMember