Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands		Jun. 30, 2016	Dec. 31, 2015
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Unamortized Debt Issuance Expense		$ 16,567	$ 17,883
Other Assets | Accounting Standards Update 2015-03
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Unamortized Debt Issuance Expense	[1]	(16,600)	(17,900)
Long-term Debt | Accounting Standards Update 2015-03
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Unamortized Debt Issuance Expense	[1]	$ 16,600	$ 17,900

[1] In accordance with Accounting Standards Update ("ASU") 2015-03, loan issuance costs related to the Notes have been presented as a reduction to the Notes. At June 30, 2016, total unamortized debt issuance costs were $4.6 million for the October Notes, $1.0 million for the December Notes, $4.5 million for the August Notes and $6.4 million for the April Notes.