Derivative Instrument and Hedging Activities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended						6 Months Ended
	Jun. 30, 2012 Successor [Member]	Jun. 30, 2012 Successor [Member]		Mar. 25, 2012 Predecessor [Member]		Jun. 30, 2011 Predecessor [Member]	Jun. 30, 2011 Predecessor [Member]
Derivative [Line Items]
Change in fair value - increase (decreae) in Accumulated other comprehensive income	$ 0	$ 0	[1]	$ 0	[1]	$ 605	$ 1,320	[1]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ 0	$ 0	[1]	$ 4,215	[1]	$ 5,450	$ 10,836	[1]

[1] See Note 6 – Comprehensive Income for additional related information.