Acquisitions And Dispositions (Character Property Rights Acquisition) - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended	0 Months Ended	1 Months Ended
	Feb. 28, 2015	Dec. 18, 2014	Mar. 31, 2015
Significant Acquisitions and Disposals [Line Items]
Purchase of Character Property rights	$ 37,700
Character property rights [Member]
Significant Acquisitions and Disposals [Line Items]
Purchase of Character Property rights		37,700
Additional consideration payable for resale of property rights		4,000
Character property rights [Member] | Subsequent Event [Member]
Significant Acquisitions and Disposals [Line Items]
Additional consideration payable for resale of property rights			$ 2,800