Financial Commitments (Tables)

12 Months Ended

Dec. 31, 2012

Long-term debt consists of the following:

	December 31,
	2012			2011
	(in thousands)
Senior unsecured notes due November 1, 2018 with interest rate of 7.625% payable in equal semi-annual installments beginning May 1, 2011 through November 1, 2018	$	300,000		$	300,000

Less unamortized debt discount based on imputed interest rate of 7.75%		(1,742	)		(1,972	)

Total amount, net of unamortized discount		298,258			298,028

$300.0 million revolving line of credit at lender's prime rate (3.25%) or Euro rate, plus applicable spread rates, maturing in 2016		120,000			-

$200.0 million term loan including quarterly installments of principal and interest payable over a five-year period at rates as defined in the Amended Credit Agreement and the Swap Agreement		152,500			185,000

Equipment financing at rates ranging from 2.21% to 3.98% payable in equal monthly installments over a five-year period, with balloon payments totaling $8.8 million in 2016		80,297			100,558

Loan on transportation equipment with interest rate of 6.44% payable in equal monthly installments over a five-year period, with a balloon payment of $29.2 million in 2014		30,905			32,145

Lunda seller notes payable at a rate of 5% with interest payable annually and principal payable in 2016		21,750			21,750

Loan on transportation equipment at a variable LIBOR-based rate plus 2.4% payable in equal monthly installments over a seven-year period, with a balloon payment of $12.1 million in 2015		14,087			14,774

Mortgages on land and office building, both at a variable LIBOR-based interest rate plus 2.0% with principal on both payable in equal monthly installments over seven years. The seven-year mortgages include balloon payments in 2016 of $3.0 million and $2.6 million, respectively		7,599			8,246

Mortgage on office building at a variable rate of lender's prime rate (3.25%) less 1.0% payable in equal monthly installments over a ten-year period, with a balloon payment of $2.6 million in 2018		3,915			4,159

Mortgage on land at a fixed interest rate of 0.20% with combined principal and interest paid in twenty-four equal monthly installments plus one fixed balloon payment of $1.5 million in 2013		1,750			-

Mortgage on office building at a rate of 5.62% payable in equal monthly installments over a five-year period, with a balloon payment of $1.1 million in 2013		1,111			1,189

Other indebtedness		4,918			6,658
Total		737,090			672,507
Less – current maturities		(67,710	)		(59,959	)
Long-term debt, net	$	669,380		$	612,548

Future Minimum Rent Payments under Non-Cancelable Operating Leases

The Company leases certain construction equipment, vehicles and office space under non-cancelable operating leases. Future minimum rent payments under non-cancelable operating leases as of December 31, 2012 are as follows:

	Amount
	(in thousands)
2013	$	15,182
2014		12,142
2015		9,475
2016		5,147
2017		2,799
Thereafter		3,258
Subtotal	$	48,003
Less - Sublease rental agreements		(1,230	)
	$	46,773