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Condensed Consolidating Financial Information (Details Textual)
Jun. 30, 2014
Mar. 19, 2013
Senior Notes
Senior Notes Due 2023
Jun. 30, 2014
Senior Notes
Senior Notes Due 2022 [Member] [Member]
Debt Instrument [Line Items]      
Notes bear interest at a rate   5.125% 5.875%
Percentage of subsidiary owned 100.00%