Income Taxes Income Taxes - Provision for Income Taxes Charged To Income From Continuing Operations (Details) (USD $) In Thousands, unless otherwise specified	8 Months Ended	12 Months Ended	4 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Apr. 30, 2013	Dec. 31, 2012
Successor [Member]
Provision for Income Taxes [Line Items]
Current Income Tax Expense (Benefit)	$ 6,984	$ 9,463
Deferred Income Tax Expense (Benefit)	530	94
Income tax expense (benefit)	7,514	9,557
Predecessor [Member]
Provision for Income Taxes [Line Items]
Current Income Tax Expense (Benefit)			761	1,263
Deferred Income Tax Expense (Benefit)			(6)	1,586
Income tax expense (benefit)			$ 755	$ 2,849