Long-term debt (Tables)

3 Months Ended

Mar. 31, 2014

Debt Disclosure [Abstract]

Components of long-term debt

As of the dates indicated, long-term debt consisted of the following:

	March 31, 2014		December 31, 2013
9.875% Senior Notes due 2020, net of discount of $5,304 and $5,444, respectively	$	294,695	$	294,556
8.25% Senior Notes due 2021	400,000		400,000
7.625% Senior Notes due 2022, including premium of $5,501 and $5,719, respectively	555,501		555,719
Senior secured revolving credit facility	319,000		272,000
Real estate mortgage notes, principal and interest payable monthly, bearing interest at rates ranging from 2.54% to 5.46%, due August 2021 through December 2028; collateralized by real property	11,081		11,202
Installment notes payable, principal and interest payable monthly, bearing interest at rates ranging from 2.85% to 5.99%, due April 2014 through February 2018 collateralized by automobiles, machinery and equipment	5,178		5,235
Capital lease obligations	23,579		24,150
	1,609,034		1,562,862
Less current maturities	5,502		5,334
	$	1,603,532	$	1,557,528