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Condensed Consolidated Statements Of Cash Flows (USD $)
In Thousands
9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Cash flows from operating activities:  
Net income$ 79,373$ 95,377
Adjustments to reconcile net income to net cash provided by operating activities:  
Gain on sale of marketable securities(66)(118)
Amortization of gain on sale of assets(211)(211)
Amortization of deferred rent88554
Depreciation and amortization15,77912,813
Amortization of deferred financing costs463 
Deferred income taxes941(3,474)
Stock-based compensation9,7988,984
Changes in assets and liabilities:  
Tuition receivable, net811(3,479)
Other current assets(2,580)(2,869)
Other assets80(257)
Accounts payable10,15520,574
Accrued expenses(5,650)3,638
Income taxes payable1,585(9,056)
Excess tax benefits from stock-based payment arrangements (2,808)
Unearned tuition11,08921,553
Deferred lease incentives297725
Net cash provided by operating activities122,749141,446
Cash flows from investing activities:  
Purchases of property and equipment(24,887)(32,067)
Purchases of marketable securities(2)(523)
Proceeds from the sale of marketable securities12,38812,500
Net cash used in investing activities(12,501)(20,090)
Cash flows from financing activities:  
Common dividends paid(37,161)(31,224)
Proceeds from exercise of stock options 452
Excess tax benefits from stock-based payment arrangements 2,808
Repurchase of common stock(182,664)(73,228)
Proceeds from revolving credit facility100,000 
Payments on revolving credit facility(95,000) 
Proceeds from term loan100,000 
Payment of deferred financing costs(2,459) 
Net cash used in financing activities(117,284)(101,192)
Net increase (decrease) in cash and cash equivalents(7,036)20,164
Cash and cash equivalents - beginning of period64,10763,958
Cash and cash equivalents - end of period57,07184,122
Non-cash transactions:  
Purchases of property and equipment included in accounts payable$ 2,087$ 2,667