DEBT

Debt consisted of the following at December 31:



	2014			2013
$100 million Senior Notes, interest at 6.30%, due June 25, 2015	$	100,000		$	100,000
$50 million Senior Notes, interest at 3.67%, due December 17, 2022	50,000			50,000
$50 million Senior Notes, interest 4.10%, due September 19, 2023	50,000			50,000
$125 million Senior Notes, interest 3.84%, due September 19, 2024	125,000			—
$800 million Credit Agreement, interest at LIBOR plus 75 basis points	110,790			195,960
Other local arrangements	16,164			17,067
	451,954			413,027
Less: current portion	(116,164		)	(17,067		)
Long-term debt	$	335,790		$	395,960

6.30% Senior Notes

In 2009, the Company issued and sold $100 million of 6.30% Senior Notes due June 25, 2015 in a private placement. The 6.30% Senior Notes are senior unsecured obligations of the Company.

Interest on the 6.30% Senior Notes is payable semi-annually in June and December. The Company may at any time prepay the 6.30% Senior Notes, in whole or in part (but in an amount not less than 10% of the original aggregate principal amount), at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, plus a “make-whole” prepayment premium. In the event of a change in control of the Company (as defined in the note purchase agreement), the Company may be required to offer to prepay the 6.30% Senior Notes in whole at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest.

The 6.30% Senior Notes contain customary affirmative and negative covenants including, among others, limitations on the Company and its subsidiaries with respect to incurrence of liens and priority indebtedness, disposition of assets, mergers, and transactions with affiliates. The note purchase agreement also requires the Company to maintain a consolidated interest coverage ratio of not less than 3.5 to 1.0 and a consolidated leverage ratio of not more than 3.5 to 1.0. The agreement contains customary events of default with customary grace periods, as applicable. The Company was in compliance with these covenants at December 31, 2014.

Issuance costs approximating $0.7 million will be amortized to interest expense over the six-year term of the 6.30% Senior Notes.

3.67% Senior Notes

In 2012, the Company issued and sold $50 million of 3.67% Senior Notes due December 17, 2022 in a private placement. The 3.67% Senior Notes are senior unsecured obligations of the Company. Interest is payable semi-annually in June and December.

The 3.67% Senior Notes contain customary affirmative and negative covenants, change in control and prepayment provisions, that are substantially similar to those contained in the previously issued debt of the Company as described above. The 3.67% Senior Notes also contain customary events of default with customary grace periods, as applicable. The Company was in compliance with these covenants at December 31, 2014.

Issuance costs approximating $0.4 million will be amortized to interest expense over the ten-year term of the 3.67% Senior Notes.

4.10% Senior Notes

In 2013, the Company issued and sold $50 million of 4.10% Senior Notes due September 19, 2023 in a private placement. The 4.10% Senior Notes are senior unsecured obligations of the Company. Interest on the 4.10% Senior Notes is payable semi-annually in March and September of each year, beginning in March 2014.

The 4.10% Senior Notes contain customary affirmative and negative covenants, change in control and prepayment provisions, that are substantially similar to those contained in the previously issued debt of the Company as described above. The 4.10% Senior Notes also contain customary events of default with customary grace periods, as applicable. The Company was in compliance with these covenants at December 31, 2014.

Issuance costs approximating $0.4 million will be amortized to interest expense over the ten-year term of the 4.10% Senior Notes.

3.84% Senior Notes and 4.24% Senior Notes

In the second quarter of 2014, the Company entered into an agreement to issue and sell $250 million of ten-year Senior Notes in a private placement. The Company issued $125 million with a fixed interest rate of 3.84% ("3.84% Senior Notes") in September 2014 and will issue $125 million with a fixed interest rate of 4.24% ("4.24% Senior Notes") in June 2015. The Senior Notes are senior unsecured obligations of the Company. Interest on the 3.84% Senior Notes is payable semi-annually in March and September each year, beginning in March 2015. Interest on the 4.24% Senior Notes is payable semi-annually in June and December of each year, beginning in December 2015.

The 3.84% Senior Notes and 4.24% Senior Notes contain customary affirmative and negative covenants, change in control and prepayment provisions, that are substantially similar to those contained in the previously issued debt of the Company as described above. The 3.84% Senior Notes and 4.24% Senior Notes also contain customary events of default with customary grace periods, as applicable. The Company was in compliance with these covenants at December 31, 2014.

Issuance costs approximating $0.9 million will be amortized to interest expense over the ten-year term of the Senior Notes.

Credit Agreement

In 2013, the Company entered into an $800 million Credit Agreement (the "Credit Agreement"), which amended its $880 million Amended and Restated Credit Agreement (the "Prior Credit Agreement"). The Credit Agreement is provided by a group of financial institutions (similar to the Company's Prior Credit Agreement) and has a maturity date of November 26, 2018. It is a revolving credit facility and is not subject to any scheduled principal payments prior to maturity. The obligations under the Credit Agreement are unsecured.

Borrowings under the Credit Agreement bear interest at current market rates plus a margin based on the Company’s consolidated leverage ratio, which was, as of December 31, 2014, set at LIBOR plus 75 basis points. The Company must also pay facility fees that are tied to its leverage ratio. The Credit Agreement contains covenants that are substantially similar to those contained in the previously issued debt of the Company as described above, with which the Company was in compliance as of December 31, 2014. The Credit Agreement also places certain limitations on the Company, including limiting the ability to incur liens or indebtedness at a subsidiary level. In addition, the Credit Agreement has several events of default. The Company incurred approximately $0.4 million of debt extinguishment costs during 2013 related to the Prior Credit Agreement. The Company capitalized $1.1 million in financing fees during 2013 associated with the Credit Agreement which will be amortized to interest expense through 2018. As of December 31, 2014, approximately $684.8 million was available under the facility.

The Company’s weighted average interest rate was approximately 5% for the years ended December 31, 2014 and 2013.