Segment Information (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended										12 Months Ended
	Jun. 30, 2012		Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011		Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2010
Revenues and long-lived assets by geographic area
Total Revenue	$ 250,413		$ 257,634	$ 299,862	$ 212,360	$ 208,791		$ 203,667	$ 234,064	$ 170,487	$ 1,020,269		$ 817,009		$ 670,035
Long-Lived Assets
Long-Lived Assets	336,075	[1]				272,919	[1]				336,075	[1]	272,919	[1]
Segment Information (Textuals) [Abstract]
Goodwill	140,429					4,168					140,429		4,168		4,168
Deferred tax assets	327					6,522					327		6,522
United States [Member]
Revenues and long-lived assets by geographic area
Total Revenue											515,584		430,354		370,137
Long-Lived Assets
Long-lived assets in foreign countries	34,673					10,167					34,673		10,167
Non-United States [Member]
Revenues and long-lived assets by geographic area
Total Revenue											504,685	[2]	386,655	[2]	299,898	[2]
Canada [Member]
Long-Lived Assets
Long-lived assets in foreign countries	98,071					103,005					98,071		103,005
Netherlands [Member]
Long-Lived Assets
Long-live assets in Netherlands	109,498					82,594					109,498		82,594
Australia [Member]
Long-Lived Assets
Long-lived assets in foreign countries	42,928					43,971					42,928		43,971
Bermuda [Member]
Long-Lived Assets
Long-lived assets in foreign countries	17,933					15,022					17,933		15,022
Jamaica [Member]
Long-Lived Assets
Long-lived assets in foreign countries	22,614					8,858					22,614		8,858
Switzerland [Member]
Long-Lived Assets
Long-lived assets in foreign countries	5,112					4,288					5,112		4,288
Spain [Member]
Long-Lived Assets
Long-lived assets in foreign countries	1,577					2,317					1,577		2,317
Other [Member]
Long-Lived Assets
Long-lived assets in foreign countries	$ 3,669					$ 2,697					$ 3,669		$ 2,697

[1] Excludes goodwill of $140,429 and $4,168 for both periods presented and deferred tax assets of $327 and $6,522 as of June 30, 2012 and 2011, respectively.

[2] Our non-United States revenue includes the Netherlands, the country of domicile. Revenue earned in any individual country was not greater than 10% of consolidated revenue for the years presented.