Earnings per Share and Shareholders' Equity Shareholders Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Stock held in trust [member] [Member]	Deferred Compensation, Share-based Payments [Member]
Stock Issued During Period, Shares, New Issues		82,594
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 359,226	$ 16,519	$ 193,492	$ (667,732)	$ 917,671	$ (100,724)	$ (2,562)	$ 2,562
Net (loss) earnings	7,780				7,780
Other Comprehensive (Loss) Income, Net of Tax	10,786					10,786
Stock Issued During Period, Shares, Employee Benefit Plan		10
Stock Issued During Period, Value, Employee Benefit Plan	182	$ 2	180
Stock Issued During Period, Shares, Restricted Stock Award, Gross		255
Stock Issued During Period, Value, Restricted Stock Award, Gross	0	$ 51	(51)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	5,227		5,227
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	(1,981)		(1,981)
Stock Issued To Acquired For And Distributed From Rabbi Trust		20
Stock Value Issued to Acquired For and Distributed From Rabbi Trust	173	$ 4	169				(434)	434
Stock Issued During Period, Shares, New Issues		82,625
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	367,946	$ 16,525	195,979	(667,732)	922,269	(99,095)	(2,643)	2,643
Net (loss) earnings	3,182				3,182
Other Comprehensive (Loss) Income, Net of Tax	9,157					9,157
Stock Issued During Period, Shares, Employee Benefit Plan		4
Stock Issued During Period, Value, Employee Benefit Plan	81	$ 1	80
Stock Issued During Period, Shares, Restricted Stock Award, Gross		235
Stock Issued During Period, Value, Restricted Stock Award, Gross	0	$ 47	(47)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	2,647		2,647
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	(1,706)		(1,706)
Stock Issued To Acquired For And Distributed From Rabbi Trust		15
Stock Value Issued to Acquired For and Distributed From Rabbi Trust	86	$ 3	83				(353)	353
Stock Issued During Period, Shares, New Issues		82,879
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	381,393	$ 16,576	197,036	(667,732)	925,451	(89,938)	(2,996)	2,996
Stock Issued During Period, Shares, New Issues		83,022
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	412,198	$ 16,604	202,971	(667,732)	953,339	(92,984)	(3,067)	3,067
Adoption of Accounting Standards	953,339
Net (loss) earnings	4,009				4,009
Other Comprehensive (Loss) Income, Net of Tax	(8,300)					(8,300)
Stock Issued During Period, Shares, Employee Benefit Plan		7
Stock Issued During Period, Value, Employee Benefit Plan	150	$ 2	148
Stock Issued During Period, Shares, Restricted Stock Award, Gross		314
Stock Issued During Period, Value, Restricted Stock Award, Gross	0	$ 63	(63)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	8,289		8,289
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	(3,373)		(3,373)
Stock Issued To Acquired For And Distributed From Rabbi Trust		2
Stock Value Issued to Acquired For and Distributed From Rabbi Trust	50		50				(22)	22
Stock Issued During Period, Shares, New Issues		83,092
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	409,806	$ 16,622	207,817	(667,732)	956,127	(103,028)	(3,092)	3,092
Net (loss) earnings	1,221				1,221
Other Comprehensive (Loss) Income, Net of Tax	1,744					1,744
Stock Issued During Period, Shares, Employee Benefit Plan		5
Stock Issued During Period, Value, Employee Benefit Plan	65	$ 1	64
Stock Issued During Period, Shares, Restricted Stock Award, Gross		247
Stock Issued During Period, Value, Restricted Stock Award, Gross	0	$ 46	(46)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	2,142		2,142
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	(1,980)		(1,980)
Stock Issued To Acquired For And Distributed From Rabbi Trust		1
Stock Value Issued to Acquired For and Distributed From Rabbi Trust	25	$ 0	25				3	(3)
Stock Issued During Period, Shares, New Issues		83,345
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	413,023	$ 16,669	$ 208,022	$ (667,732)	$ 957,348	$ (101,284)	$ (3,089)	$ 3,089
Adoption of Accounting Standards	$ 957,348