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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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-Name Regulation S-X (SX)

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- Definition

The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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

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Number of shares of stock issued during the period pursuant to acquisitions.

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Number of shares that have been repurchased and retired during the period.

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Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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Amount of a stock repurchase plan authorized by an entity's Board of Directors.

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No definition available.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Capital Stock (Details) (USD $)	0 Months Ended	12 Months Ended	26 Months Ended	38 Months Ended
Capital Stock (Details) (USD $)	Sep. 08, 2008	Dec. 31, 2010	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2014	Dec. 31, 2013	Sep. 07, 2008
Common Stock
Common stock, shares authorized	75,000,000us-gaap_CommonStockSharesAuthorized				75,000,000us-gaap_CommonStockSharesAuthorized	75,000,000us-gaap_CommonStockSharesAuthorized	40,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued upon acquisition of shares of Tutor-Saliba (in shares)	22,987,293
Common stock, shares outstanding					48,671,492us-gaap_CommonStockSharesOutstanding	48,421,467us-gaap_CommonStockSharesOutstanding
Preferred Stock
Preferred stock, shares authorized					1,000,000us-gaap_PreferredStockSharesAuthorized	1,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued					0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Preferred stock, shares outstanding					0us-gaap_PreferredStockSharesOutstanding	0us-gaap_PreferredStockSharesOutstanding
Common Stock Repurchase Program [Member]
Common Stock Repurchase Program
Common stock, maximum authorized amount to be repurchased				$ 100,000,000
Common stock, shares repurchased and cancelled (in shares)		2,164,840	4,168,238
Common stock, value of shares repurchased and cancelled		$ 39,400,000	$ 71,200,000
Common stock, average purchase price per share repurchased and cancelled (in dollars per share)			$ 17.08
Mr. Tutor, CEO And Beneficial Owner [Member]
Common Stock
Common stock, shares outstanding					8,406,375