Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2015	Mar. 31, 2015
Schedule Of Significant Accounting Policies [Line Items]
Asset held for sale		$ 973
Scenario, Forecast [Member]
Schedule Of Significant Accounting Policies [Line Items]
Gain on sale of assets	2,500
Land [Member]
Schedule Of Significant Accounting Policies [Line Items]
Asset held for sale		827
Buildings and Building Improvements [Member]
Schedule Of Significant Accounting Policies [Line Items]
Asset held for sale		38
Equipment [Member]
Schedule Of Significant Accounting Policies [Line Items]
Asset held for sale		$ 108