CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 7,763	$ 13,451
Receivables, net of allowance for doubtful accounts of $6,344 and $6,250 at March 31, 2018 and December 31, 2017, respectively	105,828	111,562
Inventories	16,811	15,671
Rental fleet, net	999,215	989,154
Property, plant and equipment, net	158,278	157,304
Other assets	13,370	15,334
Intangibles, net	60,442	62,024
Goodwill	711,063	708,907
Total assets	2,072,770	2,073,407
Liabilities:
Accounts payable	29,187	26,955
Accrued liabilities	66,337	78,084
Lines of credit	621,843	634,285
Obligations under capital leases	53,697	52,791
Senior notes, net of deferred financing costs of $3,990 and $4,150 at March 31, 2018 and December 31, 2017, respectively	246,010	245,850
Deferred income taxes	178,361	173,754
Total liabilities	1,195,435	1,211,719
Commitments and contingencies
Stockholders' equity:
Preferred stock $.01 par value, 20,000 shares authorized, none issued
Common stock $.01 par value, 95,000 shares authorized, 49,908 issued and 44,616 outstanding at March 31, 2018 and 49,658 issued and 44,380 outstanding at December 31, 2017	499	497
Additional paid-in capital	609,120	605,369
Retained earnings	467,123	463,322
Accumulated other comprehensive loss	(51,708)	(60,334)
Treasury stock, at cost, 5,292 and 5,278 shares at March 31, 2018 and December 31, 2017, respectively	(147,699)	(147,166)
Total stockholders' equity	877,335	861,688
Total liabilities and stockholders' equity	$ 2,072,770	$ 2,073,407