CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Cash flows from operating activities:      
Net income (loss) $ (86,632) $ (10,231) $ 9,866
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:      
Depreciation and amortization 42,314 34,903 33,328
Impairment of goodwill 49,823 21,272 0
Impairment of other assets 15,236 0 0
Deferred income taxes (2,943) (7,790) 5,214
Amortization of debt issuance costs 2,660 2,433 2,067
Non-cash interest expense 886 324 1,877
Stock-based compensation 294 861 792
Other non-cash (income) expense, net 3,855 (2,535) 3,515
Changes in operating assets and liabilities:      
Accounts receivable 3,003 19,719 (20,991)
Prepaid expenses and other current assets 4,003 (5,110) 1,342
Aircraft support parts, net 3,384 (17,240) (32,001)
Aircraft held for sale 2,400 0 0
Other assets (278) 5,602 (3,131)
Accounts payable (5,707) (8,856) (19,502)
Accrued expenses and other current liabilities 1,151 (20,023) (6,654)
Other liabilities (12,281) 655 (514)
Net cash provided by (used in) operating activities 21,168 13,984 (24,792)
Cash flows from investing activities:      
Acquisition of businesses, net of cash acquired 0 0 (226,868)
Purchases of aircraft and property, plant and equipment (26,126) (56,807) (56,104)
Proceeds from sale-leaseback transactions 5,078 24,660 0
Restricted cash 104 2,222 958
Purchase of intangible assets 0 0 (2,205)
(Increase) decrease in other assets 0 (126) 1,625
Dividends paid to non-controlling interest 0 (69) (341)
Net cash used in investing activities (20,944) (30,120) (282,935)
Cash flows from financing activities:      
Proceeds from shareholders, net 0 414 0
Credit facility payments (180,231) (206,686) (250,215)
Credit facility borrowings 188,890 227,939 246,377
Long-term debt issuances 0 0 400,000
Long-term debt principal payments, including capital lease payments (6,895) 0 (72,572)
Other long-term (payments) borrowings (156) 409 0
Debt issuance costs (224) (371) (14,986)
Shares withheld for payment of taxes (53) (211) (716)
Net cash provided by (used in) financing activities 1,331 21,494 307,888
Effect of foreign currency exchange rates on cash and cash equivalents (4,523) (2,142) 252
Net change in cash and cash equivalents (2,968) 3,216 413
Cash and cash equivalents at beginning of year 5,097 1,881 1,468
Cash and cash equivalents at end of year 2,129 5,097 1,881
Supplemental disclosure of cash flow information:      
Cash paid for interest 35,982 35,693 27,818
Cash paid for income taxes 1,923 3,925 1,477
Supplemental disclosure of non-cash investing and financing activities:      
Note payable incurred for purchase of aircraft support parts $ 10,000 $ 0 $ 0