Money market loans maximum amount allowed

$ 35,000,000

advances may be for one to six months with rates at a fixed spread over the corresponding London Interbank Offering Rate (“LIBOR”)

advances are generally overnight or for up to seven days. The amount, term and interest rate of an advance are established through mutual agreement with the financial institution when the Company requests such an advance

Short-term debt

$ 53,000,000

$ 387,866,000

$ 0

Indebtedness (Money Market Loans Narrative) (Details) (USD $)			3 Months Ended		1 Months Ended	3 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2014 Agreement Expiring In December 2014 [Member]	Jun. 30, 2014 Agreement Expiring in July 2015 [Member]	Jul. 31, 2014 Agreement Expiring in July 2015 [Member] Subsequent Event [Member]	Jun. 30, 2014 Minimum [Member] Agreement Expiring In December 2014 [Member]	Jun. 30, 2014 Maximum [Member] Agreement Expiring In December 2014 [Member]	Jun. 30, 2014 Maximum [Member] Agreement Expiring in July 2015 [Member]
Debt Instrument [Line Items]
Money market loans maximum amount allowed			$ 35,000,000	$ 35,000,000
Money market advances agreement expiration			Dec. 30, 2014		Jul. 31, 2015
Short-term debt, terms			advances may be for one to six months with rates at a fixed spread over the corresponding London Interbank Offering Rate (“LIBOR”)	advances are generally overnight or for up to seven days. The amount, term and interest rate of an advance are established through mutual agreement with the financial institution when the Company requests such an advance
Short term debt maturity period						1 month	6 months	7 days
Short-term debt	$ 53,000,000	$ 387,866,000	$ 0	$ 0