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Common and Common Equivalent Shares | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Common and Common Equivalent Shares | 12. Common and Common Equivalent Shares: The calculation of shares used in the basic and diluted net income per share calculation for the years ended December 31, 2016, 2015 and 2014 is as follows (in thousands):
|  | Years Ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
Weighted average number of common shares outstanding |  |  | 92,422 |  |  |  | 93,077 |  |  |  | 98,588 |
Weighted average number of dilutive common share equivalents |  |  | 687 |  |  |  | 883 |  |  |  | 1,299 |
Weighted average number of common and common equivalent shares outstanding |  |  | 93,109 |  |  |  | 93,960 |  |  |  | 99,887 |
Antidilutive securities not included in the diluted net income per common share calculation |  |  | 2 |  |  |  | — |  |  |  | 1 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1278-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=65016374&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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