Unaudited Condensed Consolidated Statement of Equity Statement (USD $) In Thousands, unless otherwise specified	Total	Common Stock [Member]	Treasury Stock [Member]	Capital in Excess of Par Value [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]
Balance at beginning of period at Dec. 31, 2011	$ 1,412,195	$ 224,666	$ (1,710)	$ 1,430,330	$ (367,044)	$ 105,852	$ 20,101
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Comprehensive income	83,432	0	0	0	85,101	(2,524)	855
Dividends declared on common stock	(23,802)	0	0	(23,802)	0	0	0
Employee share-based compensation earned	4,969	0	0	4,969	0	0	0
Stock option exercises	3,793	635	0	3,158	0	0	0
Restricted stock awards, net of forfeitures	0	483	0	(483)	0	0	0
Purchase of Company common stock	(104,700)	0	(9,385)	(60,802)	(34,513)	0	0
Purchase of Neptune Society noncontrolling interest	0
Noncontrolling interest payment	(405)	0	0	0	0	0	(405)
Other	948	82	0	866	0	0	0
Balance at end of period at Jun. 30, 2012
Balance at beginning of period at Dec. 31, 2012	1,362,827	211,057	(10)	1,307,058	(286,795)	111,717	19,800
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Comprehensive income	75,888	0	0	0	91,236	(17,260)	1,912
Dividends declared on common stock	(27,553)	0	0	(27,553)	0	0	0
Employee share-based compensation earned	5,850	0	0	5,850	0	0	0
Stock option exercises	4,999	555	0	4,444	0	0	0
Restricted stock awards, net of forfeitures	0	378	(3)	(375)	0	0	0
Purchase of Company common stock	1,851	0	117	717	1,017	0	0
Cancellation of Company Stock	0	(8)	8	0	0	0	0
Tax Benefits Related to Share-Based Awards	(5,558)	0	0	(5,558)	0	0	0
Purchase of Neptune Society noncontrolling interest	(8,333)	0	0	1,696	0	0	6,637
Noncontrolling interest payment	(900)	0	0	0	0	0	(900)
Other	1,376	82	0	1,294	0	0	0
Balance at end of period at Jun. 30, 2013	$ 1,417,861	$ 212,064	$ (122)	$ 1,293,863	$ (196,576)	$ 94,457	$ 14,175