v3.3.1.900

Capital Structure | 12 Months Ended
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Dec. 31, 2015
Capital Structure [Abstract] |
Capital Structure | Capital Structure Common Stock Our authorized common stock consists of 1.4 billion shares of Calpine Corporation common stock. Common stock issued as of December 31, 2015 and 2014, was 356,755,747 shares and 502,287,022 shares, respectively, at a par value of $0.001 per share. Common stock outstanding as of December 31, 2015 and 2014, was 356,662,004 shares and 381,921,264 shares, respectively. The table below summarizes our common stock activity for the years ended December 31, 2015, 2014 and 2013.
| Shares Issued |  | Shares Held in Treasury |  | Shares Outstanding
Balance, December 31, 2012 | 492,495,100 |  |  | (35,446,130 | ) |  | 457,048,970 |
Shares issued under Calpine Equity Incentive Plans | 5,345,956 |  |  | (2,323,828 | ) |  | 3,022,128 |
Share repurchase program | — |  |  | (31,032,110 | ) |  | (31,032,110 | )
Balance, December 31, 2013 | 497,841,056 |  |  | (68,802,068 | ) |  | 429,038,988 |
Shares issued under Calpine Equity Incentive Plans | 4,445,966 |  |  | (1,879,167 | ) |  | 2,566,799 |
Share repurchase program | — |  |  | (49,684,523 | ) |  | (49,684,523 | )
Balance, December 31, 2014 | 502,287,022 |  |  | (120,365,758 | ) |  | 381,921,264 |
Shares issued under Calpine Equity Incentive Plans | 2,431,236 |  |  | (1,089,328 | ) |  | 1,341,908 |
Share repurchase program | — |  |  | (26,601,168 | ) |  | (26,601,168 | )
Retirement of shares held in treasury | (147,962,511 | ) |  | 147,962,511 |  |  | — |
Balance, December 31, 2015 | 356,755,747 |  |  | (93,743 | ) |  | 356,662,004 |
Treasury Stock As of December 31, 2015 and 2014, we had treasury stock of 93,743 shares and 120,365,758 shares, respectively, with a cost of $1 million and $2.3 billion, respectively. During 2015, we repurchased a total of 26.6 million shares of our outstanding common stock for approximately $529 million at an average price of $19.87 per share. Our treasury stock also consists of our common stock withheld to satisfy federal, state and local income tax withholding requirements for vested employee restricted stock awards and net share employee stock options exercises under the Equity Plan. All treasury stock is held at cost.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d),(e)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29-31) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Preferred Stock -URI http://asc.fasb.org/extlink&oid=6521494 Reference 12: 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 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 15: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section C + Details
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