Intangible Assets (Expected Amortization Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, weighted average remaining period	13 years 3 months 15 days
Amortization of intangible assets	$ 2,237
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2015 (Remaining nine months ending March 31, 2015)	6,715
2016	8,953
2017	8,953
2018	8,953
2019	8,953
Thereafter	76,206
Intangible assets, net	$ 118,733
Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful lives	3 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful lives	30 years