Long-term Debt and Capital Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Long-term Debt

Long-term debt at December 31 consists of:

(in thousands)	2012		2011
LIBOR + 1.125%, unsecured term loan, due September 10, 2017, with quarterly principal and interest payments	$	146,250		—
LIBOR + 0.80%, unsecured term loan, due November 5, 2014, with principal paid at maturity		23,236		25,652
1.50% note payable, due December 31, 2013, with monthly interest and principal payments		13,452		26,703
1.50% note payable, due January 31, 2016, with monthly interest and principal payments		11,825		—
1.50% note payable, due July 31, 2015, with monthly interest and principal payments		7,457		—
LIBOR + 0.60%, unsecured term loan, due December 21, 2012, with principal to be paid at maturity		—		168,000
Total debt		202,220		220,355
Less current portion		27,361		181,251
Noncurrent portion of long-term debt	$	174,859		39,104

Required Annual Principal Payments on Long-term Debt

Required annual principal payments on long-term debt for the five years subsequent to December 31, 2012 are summarized as follows:

(in thousands)
2013	$	27,361
2014		14,332
2015		40,191
2016		15,336
2017		105,000

Capital Lease Obligations

Capital lease obligations at December 31 consist of:

(in thousands)	2012		2011
Capital lease obligations	$	30,418		38,852
Less current portion		13,263		14,363
Noncurrent portion of capital leases	$	17,155		24,489

Future Minimum Lease Payments under Capital Leases

The future minimum lease payments under capital leases at December 31, 2012 are summarized as follows:

(in thousands)
2013	$	13,781
2014		13,355
2015		2,593
2016		1,210
2017		335
Total minimum lease payments		31,274
Less amount representing interest		856
	$	30,418