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Subsequent Events | 12 Months Ended
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Dec. 31, 2018
Subsequent Events [Abstract] |
Subsequent Events [Text Block] | Subsequent Events On January 23, 2019, as part of its interest rate sensitivity management, the Company entered into an interest rate collar derivative transaction with a $500.0 million notional based on 1 month LIBOR. The Company has designated this as a cash flow hedge transaction. On November 14, 2018, as modified on January 23, 2019, the board of directors approved a stock repurchase program to repurchase up to 2.9 million shares, up to a maximum aggregate purchase price of $100.0 million.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -URI http://asc.fasb.org/topic&trid=2122774 + Details
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