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Indebtedness
3 Months Ended
Mar. 31, 2015
Debt Disclosure [Abstract]  
Debt Disclosure [Text Block]
Indebtedness

In March 2015, the Company used proceeds from its unsecured credit facility together with available cash on hand to repay all $300 million of its 5.125% senior unsecured notes due March 2015.

In March 2015, the Company issued $400 million of 3.75% senior unsecured notes due 2025. The net proceeds from this issuance were used to repay borrowings under the Company's unsecured credit facility and for general corporate purposes.