Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 7,907	$ 105,699
Accounts receivable, net	219,345	91,163
Inventories	50,156	57,801
Prepaid expenses and other assets	13,877	15,562
Total current assets	291,285	270,225
Property, plant and equipment, net	122,492	117,144
Goodwill and other intangibles	74,399	74,503
Operating lease assets	44,251	0
Other assets	3,218	3,250
Total Assets	535,645	465,122
Current Liabilities:
Accounts payable	23,528	31,084
Accrued expenses and other liabilities	42,647	56,291
Accrued warranty	5,400	5,400
Line of credit	35,000	0
Total current liabilities	106,575	92,775
Operating lease liabilities	38,764	0
Deferred income taxes	2,125	2,125
Non-current accrued warranty	24,934	25,354
Other long-term liabilities	90	1,905
Total Liabilities	172,488	122,159
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.01 par value, 3,000,000 shares authorized; none issued and outstanding
Common stock, $0.01 par value, 120,000,000 shares authorized; 70,109,157 and 69,998,336 shares issued and 58,537,485 and 58,551,653 shares outstanding at March 31, 2019 and December 31, 2018, respectively	701	700
Additional paid-in capital	121,592	124,224
Retained earnings	448,497	416,942
Treasury stock, at cost, 11,571,672 and 11,446,683 shares at March 31, 2019 and December 31, 2018, respectively	(207,633)	(198,903)
Total Stockholders' Equity	363,157	342,963
Total Liabilities and Stockholders' Equity	$ 535,645	$ 465,122