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Statements of Consolidated Common Stockholders' Equity (Shares) (Parenthetical) shares in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 shares
Balance as of January 1, 2017 | 323,160
Treasury Stock acquired | (184)
Issued: |
Employee stock purchase plan | 49
Long-term incentive plan | 763
401(k) and profit sharing | 577
Dividend reinvestment plan | 109
Balance as of March 31, 2017 | 324,474
Common Stock |
Balance as of January 1, 2017 | 326,664
Issued: |
Employee stock purchase plan | 49
Long-term incentive plan | 763
401(k) and profit sharing | 577
Dividend reinvestment plan | 109
Balance as of March 31, 2017 | 328,162
Treasury Stock |
Balance as of January 1, 2017 | (3,504)
Treasury Stock acquired | (184)
Issued: |
Employee stock purchase plan | 0
Long-term incentive plan | 0
401(k) and profit sharing | 0
Dividend reinvestment plan | 0
Balance as of March 31, 2017 | (3,688)

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- Definition Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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- Definition Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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