Orange County-Poughkeepsie Limited Partnership (Summarized O-P Balance Sheet Information) (Details) (O-P [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
O-P [Member]
Current assets	$ 23,351	$ 22,370
Property, plant and equipment, net	41,646	41,072
Other Assets	365
Total assets	65,362	63,442
Total liabilities	17,887	30,162
Partners' capital	47,475	33,280
Total liabilities and partners' capital	$ 65,362	$ 63,442