Orange County-Poughkeepsie Limited Partnership (Summarized O-P Balance Sheet Information) (Details) (O-P [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
O-P [Member]
Current assets	$ 23,351
Property, plant and equipment, net	41,646
Other Assets	365
Total assets	65,362
Total liabilities	17,887
Partners' capital	47,475
Total liabilities and partners' capital	$ 65,362