Interest and Debt Expense - Details of Interest and Debt Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest And Debt Expense [Line Items]
Interest and debt expense	$ 41,650		$ 82,954
Amortization of deferred financing costs	586		1,170
Total interest and debt expense	$ 42,236		$ 84,124
Predecessor [Member]
Interest And Debt Expense [Line Items]
Interest and debt expense		$ 7,880		$ 15,571
Amortization of deferred financing costs		108		216
Total interest and debt expense		$ 7,988		$ 15,787