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Fair Value of Consideration Transferred (Eagle Rock) (Detail) (Eagle Rock, USD $)	0 Months Ended
	Dec. 07, 2013
Eagle Rock
Business Acquisition [Line Items]
Cash consideration	$ 75,000
Fair value of promissory note due to seller	81,500
Total purchase consideration	$ 156,500

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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