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THREE-FOR-TWO STOCK SPLIT (Details 2) (USD $)
In Thousands, except Share data, unless otherwise specified
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3 Months Ended |
12 Months Ended |
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Dec. 31, 2014
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Sep. 30, 2014
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Jun. 30, 2014
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Mar. 31, 2014
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Dec. 31, 2013
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Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Net Income |
$ 29,917us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
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$ 41,121us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
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$ 40,860us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
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$ 25,766us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
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$ 27,957us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
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$ 36,200us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
|
$ 35,994us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
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$ 23,179us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
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$ 137,664us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
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$ 123,330us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
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$ 111,332us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
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| Income per share Basic (in dollars per share) |
$ 0.21us-gaap_EarningsPerShareBasic
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$ 0.28us-gaap_EarningsPerShareBasic
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$ 0.28us-gaap_EarningsPerShareBasic
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$ 0.18us-gaap_EarningsPerShareBasic
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$ 0.19us-gaap_EarningsPerShareBasic
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$ 0.25us-gaap_EarningsPerShareBasic
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$ 0.25us-gaap_EarningsPerShareBasic
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$ 0.16us-gaap_EarningsPerShareBasic
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$ 0.94us-gaap_EarningsPerShareBasic
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$ 0.84us-gaap_EarningsPerShareBasic
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$ 0.76us-gaap_EarningsPerShareBasic
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| Income per share Diluted (in dollars per share) |
$ 0.21us-gaap_EarningsPerShareDiluted
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$ 0.28us-gaap_EarningsPerShareDiluted
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$ 0.28us-gaap_EarningsPerShareDiluted
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$ 0.18us-gaap_EarningsPerShareDiluted
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$ 0.19us-gaap_EarningsPerShareDiluted
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$ 0.25us-gaap_EarningsPerShareDiluted
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$ 0.25us-gaap_EarningsPerShareDiluted
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$ 0.16us-gaap_EarningsPerShareDiluted
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$ 0.94us-gaap_EarningsPerShareDiluted
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$ 0.84us-gaap_EarningsPerShareDiluted
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$ 0.76us-gaap_EarningsPerShareDiluted
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| Weighted average shares outstanding - basic (in shares) |
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145,796us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
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146,081us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
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146,299us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
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| Weighted average shares outstanding - diluted (in shares) |
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145,796us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
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146,081us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
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146,299us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
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| Adjustment [Member] |
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| Net Income |
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| Income per share Basic (in dollars per share) |
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$ (0.31)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
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| Income per share Diluted (in dollars per share) |
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$ (0.31)us-gaap_EarningsPerShareDiluted
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
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| Weighted average shares outstanding - basic (in shares) |
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72,899us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
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| Weighted average shares outstanding - diluted (in shares) |
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72,899us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
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| Pro forma [Member] (Unaudited) |
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| Net Income |
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$ 137,664us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
/ us-gaap_StatementScenarioAxis
= us-gaap_ProFormaMember
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| Income per share Basic (in dollars per share) |
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$ 0.63us-gaap_EarningsPerShareBasic
/ us-gaap_StatementScenarioAxis
= us-gaap_ProFormaMember
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| Income per share Diluted (in dollars per share) |
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$ 0.63us-gaap_EarningsPerShareDiluted
/ us-gaap_StatementScenarioAxis
= us-gaap_ProFormaMember
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| Weighted average shares outstanding - basic (in shares) |
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218,695us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementScenarioAxis
= us-gaap_ProFormaMember
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| Weighted average shares outstanding - diluted (in shares) |
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218,695us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
/ us-gaap_StatementScenarioAxis
= us-gaap_ProFormaMember
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