Real Property Acquisitions and Development (Details 2) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Development projects:
Total development projects	$ 184,104,000	$ 195,598,000
Expansion projects	14,229,000	240,000
Total construction in progress conversions	198,333,000	195,838,000
Medical facilities [Member]
Development projects:
Total development projects	78,839,000	111,327,000
Seniors Housing Facilities Triple Net [Member]
Development projects:
Total development projects	$ 105,265,000	$ 84,271,000