6. Debt

Debt consisted of the following:


	March 31,		December 31,
	2016		2015
	(in millions)
Unsecured revolving credit facility due April 4, 2018	$	556.0	$	332.0
Unsecured term loan due from June 30, 2016 to April 4, 2018		386.3		398.8
Senior unsecured notes due November 15, 2016		350.0		350.0
Senior unsecured notes due April 15, 2023		500.0		500.0
Senior unsecured notes due November 15, 2036		250.0		250.0
Other notes and revolving credit facilities		104.3		111.3
Total		2,146.6		1,942.1
Less: unamortized discount and debt issuance costs		(12.5)		(13.4)
Less: amounts due within one year and short-term borrowings		(493.8)		(500.8)
Total long-term debt	$	1,640.3	$	1,427.9

Unsecured Credit Facility

On April 4, 2013, we entered into an unsecured five-year credit agreement with a syndicated bank group (“Credit Agreement”). The Credit Agreement amended and restated our existing $1.5 billion unsecured revolving credit facility and provided for a $500.0 million term loan and an option to increase the revolving credit facility for up to $500.0 million at our request, subject to approval of the lenders and certain other conditions. The term loan due April 4, 2018 amortizes in quarterly installments, with an annual amortization of 10% until March 2018, with the balance to be paid at maturity. Interest on borrowings from the revolving credit facility and term loan during the first quarter of 2016 was at variable rates based on LIBOR plus 1.25% or the bank prime rate plus 0.25% and included a commitment fee at an annual rate of 0.20% on the unused portion of the revolving credit facility. The applicable margins over LIBOR rate and base rate borrowings, along with commitment fees, are subject to adjustment every quarter based on our leverage ratio, as defined in the Credit Agreement.

Weighted average interest rates on borrowings outstanding on the revolving credit facility were 1.73% and 1.81% as of March 31, 2016 and December 31, 2015, respectively. Weighted average interest rates on borrowings outstanding on the term loan were 1.68% and 1.67% as of March 31, 2016 and December 31, 2015, respectively. As of March 31, 2016, we had $556.0 million of outstanding borrowings, $56.9 million of letters of credit issued and $887.1 million available on the revolving credit facility.

Senior Unsecured Notes

On November 20, 2006, we entered into an indenture (the “2006 Indenture”), for the issuance of $600.0 million of unsecured debt securities. The total debt issued was comprised of two tranches, (a) $350.0 million aggregate principal amount of senior unsecured notes bearing interest at the rate of 6.20% per annum, maturing on November 15, 2016 and (b) $250.0 million aggregate principal amount of senior unsecured notes bearing interest at the rate of 6.85% per annum, maturing on November 15, 2036.

On April 12, 2013, we entered into an indenture (the “2013 Indenture” and, together with the 2006 Indenture, the “Indentures”), for the issuance of $500.0 million aggregate principal amount of senior unsecured notes at the rate of 4.50% per annum, maturing on April 15, 2023. The net proceeds from the issuance of these notes were used to partially fund the acquisition of Metals USA Holdings Corp. (“Metals USA”).

Under the Indentures, the notes are senior unsecured obligations and rank equally in right of payment with all of our existing and future unsecured and unsubordinated obligations. The notes are guaranteed by certain of our 100%-owned domestic subsidiaries that guarantee our revolving credit facility. The senior unsecured notes include provisions that require us to make an offer to repurchase the notes at a price equal to 101% of their principal amount plus accrued and unpaid interest in the event of both a change in control and a downgrade of our credit rating.

Other Notes and Revolving Credit Facilities

Other revolving credit facilities with a combined credit limit of approximately $74.3 million are in place for operations in Asia and Europe with combined outstanding balances of $53.2 million and $59.9 million as of March 31, 2016 and December 31, 2015, respectively.

In connection with our acquisition of Metals USA, we assumed industrial revenue bonds with combined outstanding balances of $11.0 million as of March 31, 2016 and December 31, 2015, and maturities through 2027. Additionally, we assumed mortgage obligations pursuant to our acquisition of a portfolio of real estate properties that we were leasing, which have outstanding balances of $40.1 million and $40.4 million as of March 31, 2016 and December 31, 2015, respectively. The mortgages, which are secured by the underlying properties, have a fixed interest rate of 6.40% and scheduled amortization payments with a lump sum payment of $39.2 million due October 2016.

Covenants

The Credit Agreement requires us to maintain an interest coverage ratio and a maximum leverage ratio, among other things.

Our obligations under the Credit Agreement and Indentures are required to be guaranteed by certain of our 100%-owned domestic subsidiaries. The subsidiary guarantors, together with Reliance, are required to collectively account for at least 80% of our consolidated EBITDA and 80% of consolidated tangible assets.

We were in compliance with all material covenants in our debt agreements at March 31, 2016.