7.	Long-Term Debt and Short-Term Borrowings

Long-Term Debt

Long-term debt consists of the following (dollars in thousands):

	September 30,			December 31,
	2017			2016
Senior term loans, with interest ranging from 1.77% to 2.84%, due quarterly through 2022	$	751,876		$	751,875
5.00% senior notes due in 2023		800,000			800,000
4.875% senior notes due in 2026, net of unamortized discount		596,181			595,912
5.25% senior notes due in 2025, net of unamortized premium		426,363			426,500
Other		10			14
Total long-term debt		2,574,430			2,574,301
Less: current maturities of long-term debt		(10	)		(11	)
Less: unamortized debt issuance costs		(22,852	)		(26,164	)
Total long-term debt, net of current maturities	$	2,551,568		$	2,548,126

On January 9, 2015, CBRE Services, Inc. (CBRE Services), our wholly-owned subsidiary, entered into an amended and restated credit agreement (2015 Credit Agreement) with a syndicate of banks jointly led by Merrill Lynch, Pierce, Fenner & Smith Incorporated, J.P. Morgan Securities LLC and Credit Suisse AG (CS). On March 21, 2016, CBRE Services executed an amendment to the 2015 Credit Agreement that, among other things, extended the maturity on the revolving credit facility to March 2021 and increased the borrowing capacity under the revolving credit facility by $200.0 million.

Our 2015 Credit Agreement is an unsecured credit facility that is jointly and severally guaranteed by us and substantially all of our material domestic subsidiaries. As of September 30, 2017, the 2015 Credit Agreement provided for the following: (1) a $2.8 billion revolving credit facility, which includes the capacity to obtain letters of credit and swingline loans and matures on March 21, 2021; (2) a $500.0 million tranche A term loan facility requiring quarterly principal payments, which began on June 30, 2015 and continue through maturity on January 9, 2020; (3) a $270.0 million tranche B-1 term loan facility requiring quarterly principal payments, which began on December 31, 2015 and continue through maturity on September 3, 2020; and (4) a $130.0 million tranche B-2 term loan facility requiring quarterly principal payments, which began on December 31, 2015 and continue through maturity on September 3, 2022.

Our 2015 Credit Agreement contains restrictive covenants that, among other things, limit our ability to incur additional indebtedness, pay dividends or make distributions to stockholders, repurchase capital stock or debt, make investments, sell assets or subsidiary stock, create or permit liens on assets, engage in transactions with affiliates, enter into sale/leaseback transactions, issue subsidiary equity and enter into consolidations or mergers. Our 2015 Credit Agreement also requires us to maintain a minimum coverage ratio of EBITDA (as defined in the 2015 Credit Agreement) to total interest expense of 2.00x and a maximum leverage ratio of total debt less available cash to EBITDA (as defined in the 2015 Credit Agreement) of 4.25x as of the end of each fiscal quarter. On this basis, our coverage ratio of EBITDA to total interest expense was 14.29x for the trailing twelve months ended September 30, 2017, and our leverage ratio of total debt less available cash to EBITDA was 0.97x as of September 30, 2017.

The indentures governing our 5.00% senior notes, 4.875% senior notes and 5.25% senior notes contain restrictive covenants that, among other things, limit our ability to create or permit liens on assets securing indebtedness, entering into sale/leaseback transactions and entering into consolidations or mergers.

Short-Term Borrowings

Revolving Credit Facility

As of September 30, 2017, letters of credit totaling $2.0 million were outstanding under our revolving credit facility under our 2015 Credit Agreement. These letters of credit, which reduce the amount we may borrow under our revolving credit facility, were primarily issued in the ordinary course of business. As of September 30, 2017 and December 31, 2016, no amounts were outstanding under our revolving credit facility other than these letters of credit totaling $2.0 million.

Warehouse Lines of Credit

CBRE Capital Markets has warehouse lines of credit with third-party lenders for the purpose of funding mortgage loans that will be resold, and a funding arrangement with Fannie Mae for the purpose of selling a percentage of certain closed multifamily loans to Fannie Mae. These warehouse lines are recourse only to CBRE Capital Markets and are secured by our related warehouse receivables. See Note 3 for additional information.