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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Cash Flows from Operating Activities:    
Net income $ 22,584 $ 8,132
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 15,811 14,334
Share-based compensation expense 2,682 1,944
Provision for doubtful accounts 96 101
Other 394 534
Changes in operating assets and liabilities:    
Accounts receivable 1,481 1,706
Inventories 5,302 8,914
Customer deposits 2,082 7,104
Other assets and liabilities (3,538) (1,647)
Accounts payable and accrued liabilities (5,857) 7,193
Net cash provided by operating activities 41,037 48,315
Cash Flows from Investing Activities:    
Capital expenditures (16,720) (20,166)
Other 7 244
Net cash used in investing activities (16,713) (19,922)
Cash Flows from Financing Activities:    
Payments on lease obligations (643) (553)
Dividends paid (3,564) (1,750)
Proceeds from exercise of stock options 872 84
Taxes on vested restricted shares (2,461) (515)
Treasury stock acquired 0 (218)
Net cash used in financing activities (5,796) (2,952)
Increase in cash and cash equivalents during the period 18,528 25,441
Cash and cash equivalents at beginning of period 53,550 49,585
Cash and cash equivalents at end of period $ 72,078 $ 75,026