Unaudited Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Current assets:      
Cash and cash equivalents $ 265,087 $ 224,253 $ 95,788
Receivables, net 63,705 80,103 78,620
Inventories 76,216 83,482 88,620
Prepaid expenses and other current assets 2,782 4,492 3,351
Total current assets 407,790 392,330 266,379
Restricted cash 473 473 473
Property, plant and equipment, net 113,742 115,160 113,863
Deferred income taxes 2,722 3,907 1,691
Deferred debt issuance costs, net 165 196 317
Other assets 480 480 444
Total assets 525,372 512,546 383,167
Current liabilities:      
Current maturities of long-term debt 3,960 3,960 3,960
Accounts payable 33,400 31,428 33,163
Other current liabilities 32,317 70,459 27,013
Total current liabilities 69,677 105,847 64,136
Long-term debt 382,147 383,137 387,097
Deferred income taxes 13,456 3,268 13,123
Other long-term liabilities 12,939 11,013 6,108
Total liabilities $ 478,219 $ 503,265 $ 470,464
Commitments and contingencies
Stockholders' equity (deficit):      
Preferred stock   $ 0 $ 0
Common stock $ 1,962 1,962 1,957
Additional paid-in capital 65,410 64,899 57,683
Accumulated deficit (20,216) (57,549) (146,937)
Accumulated other comprehensive loss (3) (31) 0
Total stockholders' equity (deficit) 47,153 9,281 (87,297)
Total liabilities and stockholders' equity $ 525,372 $ 512,546 $ 383,167