Long-Term Debt Senior Secured Credit Facility (Details)					3 Months Ended		12 Months Ended
	Jun. 02, 2015 USD ($)	Feb. 06, 2015	May 30, 2014 USD ($)	Aug. 01, 2013 USD ($)	Sep. 30, 2015	Mar. 31, 2015 USD ($)	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Apr. 15, 2014 USD ($)
Applicable Ratio, Period One [Member]
Line of Credit Facility [Line Items]
Minimum consolidated interest coverage ratio					1.60		1.70
Maximum consolidated interest coverage ratio					7.60		5.50
Applicable Ratio, Period Two [Member]
Line of Credit Facility [Line Items]
Minimum consolidated interest coverage ratio							1.90
Maximum consolidated interest coverage ratio							6.25
Maximum consolidated leverage ratio							4.00
Applicable Ratio, Period Three [Member]
Line of Credit Facility [Line Items]
Minimum consolidated interest coverage ratio							1.65
Maximum consolidated interest coverage ratio							6.45
Maximum consolidated leverage ratio							4.00
Applicable Ratio, Period Four [Member]
Line of Credit Facility [Line Items]
Maximum consolidated interest coverage ratio							6.25
Applicable Ratio, Period Five [Member]
Line of Credit Facility [Line Items]
Maximum consolidated interest coverage ratio							5.50
First Amendment [Member]
Line of Credit Facility [Line Items]
Permitted guaranty obligations			$ 200,000,000
First Amendment [Member] | Applicable Ratio, Period One [Member]
Line of Credit Facility [Line Items]
Minimum consolidated interest coverage ratio			1.85
Maximum consolidated interest coverage ratio			7.25
First Amendment [Member] | Applicable Ratio, Period Two [Member]
Line of Credit Facility [Line Items]
Minimum consolidated interest coverage ratio			1.70
Maximum consolidated interest coverage ratio			7.50
Second Amendment [Member]
Line of Credit Facility [Line Items]
Minimum consolidated interest coverage ratio		1.50
Maximum consolidated interest coverage ratio		7.90
Third Amendment [Member]
Line of Credit Facility [Line Items]
Cap on early repayment of senior debt	$ 50,000,000
Period to remedy uncommitted inventories excess	90 days
Threshold for uncommitted inventories	$ 250,000,000
Maximum threshold for uncommitted inventories	$ 285,000,000
Third Amendment [Member] | Applicable Ratio, Period One [Member]
Line of Credit Facility [Line Items]
Minimum consolidated interest coverage ratio	1.60
Maximum consolidated interest coverage ratio	7.60
Third Amendment [Member] | Applicable Ratio, Period Two [Member]
Line of Credit Facility [Line Items]
Minimum consolidated interest coverage ratio	1.65
Maximum consolidated interest coverage ratio	7.15
Third Amendment [Member] | Applicable Ratio, Period Three [Member]
Line of Credit Facility [Line Items]
Minimum consolidated interest coverage ratio	1.70
London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Basis spread on rate				3.75%
Base Rate [Member]
Line of Credit Facility [Line Items]
Basis spread on rate				2.75%
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity				$ 303,900,000					$ 210,300,000
Maximum [Member]
Line of Credit Facility [Line Items]
Annual capital expenditures						$ 52,482,000
Future annual capital expenditures							$ 40,000,000	$ 40,000,000
Maximum [Member] | Applicable Ratio, Period One [Member]
Line of Credit Facility [Line Items]
Consolidated total senior debt to working capital ratio							80.00%