Common Stock Repurchase Program	3 Months Ended
Mar. 31, 2017
Text Block [Abstract]
Common Stock Repurchase Program	9. Common Stock Repurchase Program: 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 the Company’s 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. During the three months ended March 31, 2017, the Company repurchased 1.0 million shares of its common stock for $68.1 million, which completed the repurchases under the program with respect to issuances of shares under the Company’s equity compensation programs during 2017. The Company intends to utilize various methods to effect any future 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.

9. Common Stock Repurchase Program:

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 the Company’s 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. During the three months ended March 31, 2017, the Company repurchased 1.0 million shares of its common stock for $68.1 million, which completed the repurchases under the program with respect to issuances of shares under the Company’s equity compensation programs during 2017. The Company intends to utilize various methods to effect any future 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.