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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Cash Flows from Operating Activities:    
Net income (loss) $ 6,315 $ (34,832)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation and amortization 4,473 6,537
Provision for doubtful accounts 3,940 2,976
Non-cash compensation 4,070 2,384
401(k) employer match 1,737 1,813
Loss on disposal of property and equipment 360 196
Deferred income taxes 4,038 (22,165)
Equity in loss (earnings) of equity method investments 5 (1,951)
Amortization of deferred debt issuance costs/debt discount 185 276
Return on equity investment 362 645
Asset impairment charge 0 75,193
Changes in operating assets and liabilities, net of impact of acquisitions:    
Patient accounts receivable (27,689) (14,302)
Other current assets 7,845 (3,677)
Other assets (2,775) (1,014)
Accounts payable 9,098 8,156
Accrued expenses 801 (5,681)
Other long-term obligations (521) (71)
Net cash provided by operating activities 12,244 14,483
Cash Flows from Investing Activities:    
Proceeds from sale of deferred compensation plan assets 230 64
Purchases of deferred compensation plan assets 0 (19)
Purchases of property and equipment (6,702) (2,113)
Acquisitions of businesses, net of cash acquired (27,682) 0
Net cash used in investing activities (34,154) (2,068)
Cash Flows from Financing Activities:    
Proceeds from issuance of stock upon exercise of stock options and warrants 0 181
Proceeds from issuance of stock to employee stock purchase plan 638 504
Tax benefit from stock options exercised and restricted stock vesting 159 0
Proceeds from revolving line of credit 40,500 40,800
Repayments of revolving line of credit (25,500) (55,800)
Principal payments of long-term obligations (1,250) (3,000)
Purchase of company stock (12,315) 0
Net cash provided by (used in) financing activities 2,232 (17,315)
Net decrease in cash and cash equivalents (19,678) (4,900)
Cash and cash equivalents at beginning of period 27,502 8,032
Cash and cash equivalents at end of period 7,824 3,132
Supplemental Disclosures of Cash Flow Information:    
Cash paid for interest 648 1,827
Cash paid for income taxes, net of refunds received $ (7) $ (89)