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Earnings Per Share (Schedule of Earnings Per Share, Basic And Diluted) (Details) - USD ($) |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 05, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | Dec. 31, 2014
Numerators [Abstract] |  |  |  |  |  |
Numerator for both basic and diluted EPS, net income |  | $ 74,558,437 | $ 76,726,746 | $ 151,741,878 | $ 145,292,817 |
Denominators [Abstract] |  |  |  |  |  |
Denominator for basic EPS, weighted-average shares outstanding |  | 293,958,258 | 290,430,260 | 294,461,499 | 290,119,368 |
Potentially dilutive shares resulting from stock plans |  | 3,503,844 | 2,568,726 | 3,528,533 | 3,117,810 |
Denominator for diluted EPS |  | 297,462,102 | 292,998,986 | 297,990,032 | 293,237,178 |
Shares related to stock plans not included in diluted average common shares outstanding because their effect would be anti-dilutive |  | 1,804,157 | 5,989,258 | 1,496,107 | 1,990,354 |
Common Stock |  |  |  |  |  |
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |  |  |  |
Stock split, conversion ratio | 2 |  |  |  |  | 2
Stock split, stock dividend | 100.00% |  |  |  |  | 100.00%

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Antidilution -URI http://asc.fasb.org/extlink&oid=6505113 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Diluted Earnings Per Share -URI http://asc.fasb.org/extlink&oid=6510752 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Contingent Stock Agreement -URI http://asc.fasb.org/extlink&oid=6508534 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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