Investments - Available for Sale and Held to Maturity Securities (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015
Available-for-sale Securities [Abstract]
Adjusted Cost	$ 18,750
Gross Gain	23
Gross Loss	(10)
Fair Value	18,763us-gaap_AvailableForSaleSecurities
Held-to-maturity Securities [Abstract]
Carrying Value	21,104us-gaap_HeldToMaturitySecurities
Unrealized Gain	8
Unrealized Loss	(16)
Fair Value	21,096
Mutual Funds - Corporate & Government Debt
Available-for-sale Securities [Abstract]
Adjusted Cost	18,750
Gross Gain	23
Gross Loss	(10)
Fair Value	18,763
Cash & Cash Equivalents
Held-to-maturity Securities [Abstract]
Carrying Value	6,666
Unrealized Gain	0
Unrealized Loss	0
Fair Value	6,666
Fixed Income Bonds
Held-to-maturity Securities [Abstract]
Carrying Value	3,523
Unrealized Gain	0
Unrealized Loss	(16)
Fair Value	3,507
Time Deposits
Held-to-maturity Securities [Abstract]
Carrying Value	10,915
Unrealized Gain	8
Unrealized Loss	0
Fair Value	$ 10,923

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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Amount of accumulated unrealized gain on investments in debt securities classified as held-to-maturity.

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Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity.

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Fair value of investments in debt securities classified as held-to-maturity.

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