CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents	$ 69,045	$ 85,040
Accounts receivable, net of allowance for doubtful accounts of $1,865 in 2016 and $1,747 in 2015	76,856	86,268
Inventories	99,981	98,510
Other current assets	13,072	10,653
Total current assets	258,954	280,471
Property, plant and equipment, net	55,985	57,611
Intangible assets, net	81,656	87,827
Goodwill	17,479	121,634
Deferred income taxes	3,162	8,304
Other assets	27,445	27,524
Total assets	444,681	583,371
Current Liabilities:
Accounts payable	49,134	49,798
Accrued expenses	32,816	38,323
Current portion of long-term debt	9,896	24,772
Other current liabilities	7,759	8,959
Total current liabilities	99,605	121,852
Long-term Liabilities:
Long-term debt	152,017	158,776
Liability for uncertain tax positions	38,721	40,295
Minimum pension obligation and unfunded pension liability	15,448	15,576
Deferred income taxes	4,718	13,176
Other liabilities	349	574
Total liabilities	$ 310,858	$ 350,249
Commitments and contingencies
Stockholders' Equity:
Preferred stock, no par value, 1,000,000 shares authorized; none issued	$ 0	$ 0
Additional paid-in capital	25,144	24,440
Retained earnings	127,862	229,371
Accumulated other comprehensive loss	(20,369)	(21,876)
Total stockholders' equity	133,823	233,122
Total liabilities and stockholders' equity	444,681	583,371
Class A [Member]
Stockholders' Equity:
Common Stock	217	217
Class B [Member]
Stockholders' Equity:
Common Stock	$ 969	$ 970