Common Stock Repurchase Programs	12 Months Ended
Dec. 31, 2014
Text Block [Abstract]
Common Stock Repurchase Programs	14. Common Stock Repurchase Programs: In July 2013, the Company’s Board of Directors authorized the repurchase of shares of the Company’s common stock up to an amount sufficient to offset the dilutive impact from the issuance of shares under our equity compensation programs. The share repurchase program allows the Company to make open market purchases from time-to-time based on general economic and market conditions and trading restrictions. The repurchase program also allows for the repurchase of shares of the Company’s common stock to offset the dilutive impact from the issuance of shares, if any, related to the Company’s acquisition program. In October 2014, the Company announced that its Board of Directors had authorized the repurchase of up to $600.0 million of shares of the Company’s common stock in addition to its existing share repurchase program. During the year ended December 31, 2014, the Company repurchased approximately 7.1 million shares of its common stock for approximately $488.4 million, including shares withheld to satisfy minimum statutory tax withholding obligations with a fair value of $1.1 million in connection with the vesting of deferred stock during the period and the aggregate value of common stock held back pending final settlement of an accelerated share repurchase program discussed below. On December 15, 2014, the Company entered into uncollared accelerated share repurchase (“ASR”) agreement with an investment bank. Under the ASR agreement, the Company agreed to purchase $200.0 million of its common stock in total. On December 17, 2014, the Company paid a total of $200.0 million to an investment bank, which in turn delivered to the Company approximately 2.5 million shares of the Company’s common stock in total based on the market price of a share of Company common stock on December 12, 2014. The payment was recorded as a reduction to the respective components of shareholders’ equity. The final number of shares of common stock that the Company may receive, or may be required to remit, upon settlement under the ASR agreement will be based upon the average daily volume weighted-average price of the Company’s common stock during the term of the ASR agreement, less a negotiated discount. Final settlement of the ASR agreement is expected to occur within seven months of commencement of the program, and may occur earlier at the option of the investment bank. The terms of the ASR agreement are subject to adjustment if the Company were to enter into or announce certain types of transactions that may affect the Company’s common stock. If the Company is obligated to make an adjustment payment to the investment bank under the ASR agreement, the Company may elect to satisfy such obligation in cash or in shares of the Company’s common stock. The ASR agreement was funded by borrowings under the Company’s Credit Agreement discussed in Note 10. The Company intends to utilize various methods to effect any additional share repurchases, including, among others, open market purchases and accelerated share repurchase programs. The amount and timing of repurchases will depend upon several factors, including general economic and market conditions and trading restrictions.

14. Common Stock Repurchase Programs:

In July 2013, the Company’s Board of Directors authorized the repurchase of shares of the Company’s common stock up to an amount sufficient to offset the dilutive impact from the issuance of shares under our equity compensation programs. The share repurchase program allows the Company to make open market purchases from time-to-time based on general economic and market conditions and trading restrictions. The repurchase program also allows for the repurchase of shares of the Company’s common stock to offset the dilutive impact from the issuance of shares, if any, related to the Company’s acquisition program. In October 2014, the Company announced that its Board of Directors had authorized the repurchase of up to $600.0 million of shares of the Company’s common stock in addition to its existing share repurchase program.

During the year ended December 31, 2014, the Company repurchased approximately 7.1 million shares of its common stock for approximately $488.4 million, including shares withheld to satisfy minimum statutory tax withholding obligations with a fair value of $1.1 million in connection with the vesting of deferred stock during the period and the aggregate value of common stock held back pending final settlement of an accelerated share repurchase program discussed below.

On December 15, 2014, the Company entered into uncollared accelerated share repurchase (“ASR”) agreement with an investment bank. Under the ASR agreement, the Company agreed to purchase $200.0 million of its common stock in total. On December 17, 2014, the Company paid a total of $200.0 million to an investment bank, which in turn delivered to the Company approximately 2.5 million shares of the Company’s common stock in total based on the market price of a share of Company common stock on December 12, 2014. The payment was recorded as a reduction to the respective components of shareholders’ equity. The final number of shares of common stock that the Company may receive, or may be required to remit, upon settlement under the ASR agreement will be based upon the average daily volume weighted-average price of the Company’s common stock during the term of the ASR agreement, less a negotiated discount. Final settlement of the ASR agreement is expected to occur within seven months of commencement of the program, and may occur earlier at the option of the investment bank. The terms of the ASR agreement are subject to adjustment if the Company were to enter into or announce certain types of transactions that may affect the Company’s common stock. If the Company is obligated to make an adjustment payment to the investment bank under the ASR agreement, the Company may elect to satisfy such obligation in cash or in shares of the Company’s common stock. The ASR agreement was funded by borrowings under the Company’s Credit Agreement discussed in Note 10.

The Company intends to utilize various methods to effect any additional share repurchases, including, among others, open market purchases and accelerated share repurchase programs. The amount and timing of repurchases will depend upon several factors, including general economic and market conditions and trading restrictions.