Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 279,736	$ 277,444
Restricted cash	847
Short-term investments	47,780	66,787
Accounts receivable, net	98,866	58,020
Inventories	120,266	77,063
Deferred cost of sales	16,060	6,160
Prepaid expenses and other current assets	33,437	16,034
Total current assets	596,992	501,508
Property, plant, and equipment, net	85,058	60,646
Intangible assets, net	369,843	58,378
Goodwill	307,131	114,908
Deferred income taxes	2,953	2,045
Other assets	25,310	21,047
Total assets	1,387,287	758,532
Current liabilities:
Accounts payable	50,318	22,607
Accrued expenses and other current liabilities	60,339	33,201
Customer deposits and deferred revenue	108,953	85,022
Income taxes payable	3,846	2,311
Current portion of long-term debt		368
Total current liabilities	223,456	143,509
Deferred income taxes	36,845	13,199
Long-term debt	275,630	826
Other liabilities	10,643	6,403
Total liabilities	546,574	163,937
Stockholders' equity:
Preferred stock, $0.01 par value; 500,000 shares authorized; no shares issued and outstanding
Common stock, $0.01 par value; 120,000,000 shares authorized; 48,229,251 and 40,714,790 shares issued at December 31, 2017 and December 31, 2016, respectively; 48,144,416 and 40,588,194 shares outstanding at December 31, 2017 and December 31, 2016, respectively.	482	407
Additional paid-in capital	1,053,079	763,303
Accumulated deficit	(213,376)	(168,583)
Accumulated other comprehensive income	1,812	1,777
Treasury stock, at cost, 84,835 and 126,596 shares at December 31, 2017 and 2016, respectively.	(1,284)	(2,309)
Total stockholders' equity	840,713	594,595
Total liabilities and stockholders' equity	$ 1,387,287	$ 758,532

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.