CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 197,676	$ 925,699
Accounts receivable (less allowances of $46,648 and $51,271 as of December 31, 2017 and September 30, 2018, respectively)	847,452	835,742
Prepaid expenses and other	170,847	188,874
Total Current Assets	1,215,975	1,950,315
Property, Plant and Equipment:
Property, plant and equipment	7,469,651	6,251,100
Less—Accumulated depreciation	(3,044,958)	(2,833,421)
Property, Plant and Equipment, Net	4,424,693	3,417,679
Other Assets, Net:
Goodwill	4,478,757	4,070,267
Customer relationships, customer inducements and data center lease-based intangibles	1,516,851	1,400,547
Other	169,693	133,594
Total Other Assets, Net	6,165,301	5,604,408
Total Assets	11,805,969	10,972,402
Current Liabilities:
Current portion of long-term debt	121,695	146,300
Accounts payable	285,810	289,137
Accrued expenses	602,273	653,146
Deferred revenue	237,574	241,590
Total Current Liabilities	1,247,352	1,330,173
Long-term Debt, net of current portion	8,109,179	6,896,971
Other Long-term Liabilities	116,757	73,039
Deferred Rent	117,330	126,231
Deferred Income Taxes	181,730	155,728
Commitments and Contingencies (see Note 8)
Redeemable Noncontrolling Interest	94,745	91,418
Iron Mountain Incorporated Stockholders' Equity:
Preferred stock (par value $0.01; authorized 10,000,000 shares; none issued and outstanding)	0	0
Common stock (par value $0.01; authorized 400,000,000 shares; issued and outstanding 283,110,183 shares and 286,221,058 shares as of December 31, 2017 and September 30, 2018, respectively)	2,862	2,831
Additional paid-in capital	4,261,187	4,164,562
(Distributions in excess of earnings) Earnings in excess of distributions	(2,098,403)	(1,765,966)
Accumulated other comprehensive items, net	(228,260)	(103,989)
Total Iron Mountain Incorporated Stockholders' Equity	1,937,386	2,297,438
Noncontrolling Interests	1,490	1,404
Total Equity	1,938,876	2,298,842
Total Liabilities and Equity	$ 11,805,969	$ 10,972,402