Valuation and Qualifying Accounts (Tables)

12 Months Ended

Mar. 31, 2011

Valuation and Qualifying Accounts (Tables) [Abstract]

Valuation And Qualifying Accounts

							Thousands of
	Millions of yen						U.S. dollars
Allowance for doubtful receivables	2011		2010		2009		2011
Balance at beginning of fiscal period	¥	14,941	¥	15,330	¥	11,470	$	180,012
Additions
Charged to costs and expenses		5,307		7,457		7,091		63,940
Charged to other accounts		1,068		957		23		12,867
Deductions		5,523		8,803		3,254		66,542
Balance at end of fiscal period	¥	15,793	¥	14,941	¥	15,330	$	190,277

							Thousands of
	Millions of yen						U.S. dollars
Valuation allowance for deferred tax assets	2011		2010		2009		2011
Balance at beginning of fiscal period	¥	49,081	¥	31,420	¥	22,435	$	591,337
Additions
Charged to costs and expenses		7,596		21,784		19,784		91,518
Charged to other accounts		—		8		587		—
Deductions		19,987		4,131		11,386		240,807
Balance at end of fiscal period	¥	36,690	¥	49,081	¥	31,420	$	442,048