Property and Equipment, Net - Schedule (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Property Plant and Equipment Gross	$ 89,769	$ 85,761
Accumulated depreciation	(13,098)	(7,993)
Property and equipment, net	76,671	77,768
Rigs and Other Equipment [Member]
Property Plant and Equipment Gross	71,160	68,404
Building and Building Improvements [Member]
Property Plant and Equipment Gross	13,226	12,019
Land [Member]
Property Plant and Equipment Gross	1,068	1,068
Vehicles [Member]
Property Plant and Equipment Gross	1,723	1,639
Furniture and Fixtures [Member]
Property Plant and Equipment Gross	289	289
Assets in Progress [Member]
Property Plant and Equipment Gross	$ 2,303	$ 2,342

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived 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, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived 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, furniture and fixtures, and computer equipment.

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