Supplemental Information (Tables)

3 Months Ended

Mar. 31, 2013

Supplemental Information [Abstract]

Supplemental Information

	Three months ended March 31,
	2013		2012
Income taxes paid	$	32,142	$	5,784
Interest paid		1,390		1,071
Dividends declared but not paid at end of period		16,579		15,863
Treasury stock payable at period end		0		4,607