Consolidated Statements of Shareholders' Equity Statement - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]
Common Stock, Shares, Outstanding	46,924,238
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		382,000
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	$ 0	$ 4	$ (4)
Stock Repurchased and Retired During Period, Shares		137,000
Stock Repurchased and Retired During Period, Value	6,812	$ 1	6,811
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	4,440		4,440
Net income	7,479			$ 7,479
Other Comprehensive Income (Loss), Net of Tax	(377)				$ (377)
Foreign currency translation adjustments	(362)
Pension benefit plan, net of tax	(15)
Common Stock, Shares, Outstanding		47,169,000
Stockholders' Equity Attributable to Parent	776,621	$ 472	587,788	187,447	914
Common Stock, Shares, Outstanding		54,248,000
Stockholders' Equity Attributable to Parent	1,284,739	$ 542	1,058,745	226,743	(1,291)
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		462,000
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	3	$ 5	(2)
Stock Repurchased and Retired During Period, Shares		176,000
Stock Repurchased and Retired During Period, Value	14,562	$ 2	14,560
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	5,769		5,769
Net income	19,247			19,247
Other Comprehensive Income (Loss), Net of Tax	82				82
Foreign currency translation adjustments	75
Pension benefit plan, net of tax	$ 7
Common Stock, Shares, Outstanding	47,265,355	54,534,000
Stockholders' Equity Attributable to Parent	$ 1,295,278	$ 545	$ 1,049,952	$ 245,990	$ (1,209)