Senior Notes

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Senior Notes

7. Senior Notes

In May 2017, the Company issued $450.0 million aggregate principal amount of 4.700% senior unsecured notes due June 2027.  These notes were issued at a discount of $0.8 million.  Total fees, including underwriting discounts, incurred by the Company were $3.9 million.  In July 2017, the Company repaid all of its 4.75% senior unsecured notes due April 2018 with an aggregate principal amount outstanding of $300.0 million.