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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Cash flows from operating activities:    
Net income $ 18,235 $ 22,989
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 12,288 12,511
Amortization of deferred debt costs 2,375 2,427
Gain on disposal of property and equipment (466) (466)
Deferred tax expense 1,561 1,299
Stock-based compensation expense 2,489 2,181
Changes in operating assets and liabilities (Note 15) (28,005) (14,695)
Net cash provided by operating activities 8,477 26,246
Cash flows from investing activities:    
Capital expenditures (7,871) (9,533)
Proceeds from sale of property and equipment 1,265 1,499
Net cash used in investing activities (6,606) (8,034)
Cash flows from financing activities:    
Repayments of long-term debt (10,435) (11,298)
Distributions to noncontrolling interest owners (5,900) (1,350)
Purchase of treasury stock (3,201) 0
Other 100 (181)
Net cash used in financing activities (19,436) (12,829)
Net change in cash and cash equivalents (17,565) 5,383
Cash and cash equivalents at beginning of period 94,095 83,953
Cash and cash equivalents at end of period $ 76,530 $ 89,336