Income Taxes (Notes)

6 Months Ended

Jun. 30, 2019

Income Tax Policy [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

Shareholders’ Equity

On December 12, 2018, the Company entered into accelerated share repurchase agreement ("ASR") with an investment bank to purchase an aggregate $100.0 million of the Company’s common stock. As part of the ASR, the Company received an initial share delivery of 2,910,150 shares of the Company’s common stock with a fair market value of $80.0 million. On May 17, 2019, this agreement was completed by the delivery of 566,599 shares of the Company's common stock.

Under the authorization from the Company’s Board of Directors, shares may be purchased from time to time, at the Company’s discretion and subject to the availability of stock, market conditions, the trading price of the stock, alternative uses for capital, the Company’s financial performance and other potential factors. These purchases may be carried out through open market purchases, block trades, accelerated share repurchase plans of up to $100.0 million each (unless otherwise approved by the Board of Directors), negotiated private transactions or pursuant to any trading plan that may be adopted in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934.

On May 1, 2019, the Company's Board of Directors authorized the purchase of up to an additional $372.5 million of the Company's outstanding common stock. With this authorization, the Company has outstanding approval to purchase up to approximately $500.0 million, in the aggregate, of the Company's outstanding common stock, after giving effect to the final settlement of shares in connection with the ASR.