Subsequent Event (Details) (USD $)	Mar. 31, 2015	Apr. 21, 2015
Subsequent Event [Line Items]
Line Of Credit Facility Current Borrowing Capacity	$ 300,000,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Line Of Credit Facility Current Borrowing Capacity		300,000,000
Subsequent Event [Member] | Modified Facility [Member]
Subsequent Event [Line Items]
Line Of Credit Facility Current Borrowing Capacity		250,000,000
Leverage ratio		2.50
Fixed charge coverage ratio		1.00
Minimum | Subsequent Event [Member] | Modified Facility [Member]
Subsequent Event [Line Items]
New financial covenants applicable at aggregate commitments outstanding		25.00%
New financial covenants applicable at balance outstanding		$ 62,500,000