Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities
Net income	$ 34,813	$ 23,970
Adjustments to reconcile net income to net cash provided from operating activities:
Depreciation and amortization	17,399	18,851
Amortization of deferred financing charges	263	288
Deferred income tax provision	(71)	1,331
Share-based compensation	1,975	1,751
Changes in assets and liabilities:
Increase in accounts receivable	(19,279)	(7,512)
Decrease in inventories	17,169	9,278
Decrease in other current assets	12,146	10,451
(Decrease) increase in accounts payable	(917)	3,745
Increase (decrease) in other current liabilities	2,533	(15,281)
Changes in other long-term assets and liabilities	2,019	(3,143)
Net cash provided from operating activities	68,050	43,729
Cash flows used for investing activities:
Capital expenditures	(14,722)	(15,879)
Net cash used for investing activities	(14,722)	(15,879)
Cash flows used for financing activities:
Proceeds from exercise of stock options	159	75
Long-term debt borrowings	0	28,000
Long-term debt repayments	(24,001)	(36,000)
Excess tax benefits from exercise of stock options	154	1,041
Common stock repurchases and restricted stock forfeitures	(6,381)	(70)
Dividends paid	(17,546)	(15,326)
Net cash used for financing activities	(47,615)	(22,280)
Net change in cash	5,713	5,570
Cash and cash equivalents at beginning of period	32,755	26,815
Cash and cash equivalents at end of period	$ 38,468	$ 32,385