Property and Equipment - Schedule (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Property and equipment, gross	$ 142,149	$ 139,775
Accumulated depreciation	(40,241)	(32,588)
Property and equipment, net	101,908	107,187
Rigs and other equipment
Property and equipment, gross	117,172	115,391
Buildings and improvements
Property and equipment, gross	19,370	18,977
Land
Property and equipment, gross	1,893	1,893
Vehicles
Property and equipment, gross	2,304	2,197
Furniture and fixtures
Property and equipment, gross	851	673
Assets in progress
Property and equipment, gross	$ 559	$ 644

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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