Acquisitions - Additional Information (Detail)	3 Months Ended
	Jun. 30, 2014
EXCO/HGI JV [Member] | EXCO [Member]
Business Acquisition [Line Items]
Business Acquisition Percentage Of Equity Interests Acquired	25.50%
EXCO/HGI JV [Member] | HGI [Member]
Business Acquisition [Line Items]
Business Acquisition Percentage Of Equity Interests Acquired	74.40%
Liquid Fence Promissory Note [Member] | The Liquid Fence Company [Member]
Business Acquisition [Line Items]
Notes Payable, Current	24 months