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Subsequent Events (Notes) | 12 Months Ended
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Dec. 31, 2017
Subsequent Events [Abstract] |
Subsequent Events [Text Block] | Subsequent Events In February 2018, we announced that our Board had approved a new share repurchase program to repurchase from time to time up to $300.0, excluding fees, of our common stock (the "2018 Share Repurchase Program"). The authorization for repurchases under the 2018 Share Repurchase Program is in addition to any amounts remaining for repurchase under the 2017 Share Repurchase Program. See Note 5 for further information on the 2017 Share Repurchase Program. There is no expiration date associated with the share repurchase programs. We may effect such repurchases through open market purchases, trading plans established in accordance with SEC rules, derivative transactions or other means. We expect to continue to repurchase our common stock in future periods, although the timing and amount of the repurchases will depend on market conditions and other funding requirements. We also announced in February 2018 that our Board had declared a common stock cash dividend of $0.21 per share, payable on March 15, 2018 to holders of record as of the close of business on March 1, 2018.

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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -URI http://asc.fasb.org/topic&trid=2122774 + Details
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