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Stockholders' Equity Equity (Tables) | 12 Months Ended
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Dec. 31, 2018
Equity [Abstract] |
Class of Treasury Stock | The following table provides purchases made by the Company of shares of its common stock under each share repurchase program in effect during fiscal 2018 (dollars in thousands):
Plan Authorization Date |  | Plan Completion Date |  | Dollar Amount Authorized |  | Shares Purchased in 2018 |  | Dollar Amount Purchased in 2018 |  | Remaining Dollar Amount Authorized For Future Purchases
May 15, 2017 |  | January 31, 2018 |  | $ | 100,000 |  |  | 239,000 |  |  | $ | 17,288 |  |  | $ | — |
October 24, 2017 |  | April 6, 2018 |  | 100,000 |  |  | 1,282,000 |  |  | 100,000 |  |  | — |
April 25, 2018 |  | June 13, 2018 |  | 100,000 |  |  | 1,098,000 |  |  | 100,000 |  |  | — |
July 25, 2018 |  | Currently active |  | 100,000 |  |  | 724,000 |  |  | 57,240 |  |  | 42,760 |
October 24, 2018 |  | Currently active |  | 100,000 |  |  | — |  |  | — |  |  | 100,000 |
Total |  |  |  |  |  | 3,343,000 |  |  | $ | 274,528 |  |  | $ | 142,760 |

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- Definition Tabular disclosure of treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23309-112656 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
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