Segment Information (Segmented Information By Business Unit) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Segment revenues	$ 323,026	$ 422,905	$ 942,366	$ 1,205,805
Direct operating expenses	201,957	204,691	547,659	600,480
Distribution and marketing	72,806	158,978	279,194	461,480
Segment contribution before general and administration expenses	48,263	59,236	115,513	143,845
General and administration	13,280	14,807	42,621	44,200
Segment profit	34,983	44,429	72,892	99,645
Acquisition of investment in films and television programs	118,422	107,485	551,806	421,148
Motion Pictures [Member]
Segment revenues	233,327	326,695	644,745	941,125
Direct operating expenses	134,630	130,837	329,401	401,061
Distribution and marketing	63,521	146,083	257,986	437,524
Segment contribution before general and administration expenses	35,176	49,775	57,358	102,540
General and administration	10,686	11,948	34,332	35,587
Segment profit	24,490	37,827	23,026	66,953
Acquisition of investment in films and television programs	56,240	59,565	374,619	252,006
Television Production [Member]
Segment revenues	89,699	96,210	297,621	264,680
Direct operating expenses	67,327	73,854	218,258	199,419
Distribution and marketing	9,285	12,895	21,208	23,956
Segment contribution before general and administration expenses	13,087	9,461	58,155	41,305
General and administration	2,594	2,859	8,289	8,613
Segment profit	10,493	6,602	49,866	32,692
Acquisition of investment in films and television programs	$ 62,182	$ 47,920	$ 177,187	$ 169,142