Supplemental Information to Consolidated Statements of Cash Flows	12 Months Ended
Dec. 31, 2017
Supplemental Information to Consolidated Statements of Cash Flows	Note 19—Supplemental Information to Consolidated Statements of Cash Flows In 2015, certain employees – including an executive officer, surrendered an aggregate of 52,024 shares of restricted stock at a value of $0.4 million to cover their income taxes due on the 2015 vesting of the restricted shares granted them in 2014 and prior. Additionally, the Company recognized a nominal excess tax benefit from the vesting of restricted stock. In 2016, certain employees – including an executive officer, surrendered an aggregate of 50,719 shares of restricted stock at a value of $1.5 million to cover their income taxes due on the 2016 vesting of the restricted shares granted them in 2015 and prior. Additionally, the Company recognized a $0.5 million excess tax benefit from the vesting of restricted stock. In 2017, certain employees – including an executive officer, surrendered an aggregate of 29,689 shares of restricted stock at a value of less than $0.1 million to cover their income taxes due on the 2017 vesting of the restricted shares granted to them in 2011 and 2013. Additionally, the Company recognized nil excess tax deficiency from the vesting of restricted stock. In 2017, the Company issued approximately 3.0 million shares of its common stock with a value of $15.5 million to extinguish a portion of the 2018 convertible senior notes (see Note 12).

Supplemental Information to Consolidated Statements of Cash Flows

12 Months Ended

Dec. 31, 2017

Supplemental Information to Consolidated Statements of Cash Flows

Note 19—Supplemental Information to Consolidated Statements of Cash Flows

In 2015, certain employees – including an executive officer, surrendered an aggregate of 52,024 shares of restricted stock at a value of $0.4 million to cover their income taxes due on the 2015 vesting of the restricted shares granted them in 2014 and prior. Additionally, the Company recognized a nominal excess tax benefit from the vesting of restricted stock.

In 2016, certain employees – including an executive officer, surrendered an aggregate of 50,719 shares of restricted stock at a value of $1.5 million to cover their income taxes due on the 2016 vesting of the restricted shares granted them in 2015 and prior. Additionally, the Company recognized a $0.5 million excess tax benefit from the vesting of restricted stock.

In 2017, certain employees – including an executive officer, surrendered an aggregate of 29,689 shares of restricted stock at a value of less than $0.1 million to cover their income taxes due on the 2017 vesting of the restricted shares granted to them in 2011 and 2013. Additionally, the Company recognized nil excess tax deficiency from the vesting of restricted stock.

In 2017, the Company issued approximately 3.0 million shares of its common stock with a value of $15.5 million to extinguish a portion of the 2018 convertible senior notes (see Note 12).