Investment in Other Affiliates Additional Information (Details) (USD $)	3 Months Ended		12 Months Ended	29 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Mar. 31, 2015
Investments in and Advances to Affiliates [Line Items]
Document Period End Date	Mar. 31, 2015
Income (Loss) from Equity Method Investments	$ (1,623,000)	$ (896,000)
Eicher -Polaris Private Limited
Investments in and Advances to Affiliates [Line Items]
Equity method investment ownership percentage	50.00%			50.00%
Period for proportionate share of income (loss) to be reflected in consolidated financials	1 month
Joint venture investment	50,000,000
Investment Maturity Period			3 years
Payments to Acquire Businesses and Interest in Affiliates				$ 26,927,000