Debt (Tables)

6 Months Ended

Jun. 30, 2013

Debt [Abstract]

Schedule of debt

Long-term debt, capital leases and financing obligations consist of the following (dollars in thousands):

	June 30, 2013		December 31, 2012
Mortgage notes payable due 2014 through 2023; weighted average interest rate of 4.22% for the six months ended June 30, 2013, net of debt discount of $0.2 million (weighted average interest rate of 4.62% in 2012)	$	1,832,236	$	1,701,515
$150,000 Series A notes payable, secured by five communities and by a $3.0 million cash collateral deposit, bearing interest at LIBOR plus 0.88%, payable in monthly installments of principal and interest through maturity in August 2013		142,240		144,384
Discount mortgage note payable due June 2013, net of debt discount of $1.0 million in 2012 (weighted average interest rate of 2.56% in 2012)		—		80,533
Variable rate tax-exempt bonds credit-enhanced by Fannie Mae; (weighted average interest rate of 1.65% in 2012), due 2032, payable in monthly installments of principal and interest through maturity, secured by the underlying assets of the portfolio		—		99,847
Capital and financing lease obligations payable through 2026; weighted average interest rate of 8.15% for the six months ended June 30, 2013 (weighted average interest rate of 8.16% in 2012)		306,382		319,745
Convertible notes payable in aggregate principal amount of $316.3 million, less debt discount of $60.0 million and $65.0 million in 2013 and 2012, respectively, interest at 2.75% per annum, due June 2018		256,284		251,312
Construction financing due 2017 through 2024; weighted average interest rate of 8.0% for the six months ended June 30, 2013 (weighted average interest rate of 8.0% in 2012)		6,499		1,280
Notes payable issued to finance insurance premiums, weighted average interest rate of 2.66% for the six months ended June 30, 2013  (weighted average interest rate of 2.81% in 2012), due 2014		12,308		753
Total debt		2,555,949		2,599,369
Less current portion		69,727		509,543
Total long-term debt	$	2,486,222	$	2,089,826