CONSOLIDATED STATEMENTS OF NET INCOME - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
 [1]
Jun. 30, 2016
 [1]
Mar. 31, 2016
 [1]
Dec. 31, 2015
 [1]
Sep. 30, 2015
 [1]
Jun. 30, 2015
 [1]
Mar. 31, 2015
 [1]
Jun. 30, 2016
 [1]
Jun. 30, 2015
 [1]
Sep. 30, 2016
 [1]
Sep. 30, 2015
 [1]
Dec. 31, 2016
Dec. 31, 2015
 [1]
Dec. 31, 2014
 [1]
CONSOLIDATED STATEMENTS OF NET INCOME [Abstract]                              
Net patient revenues $ 88,946 $ 86,411 $ 88,433 $ 85,049 $ 84,881 $ 82,154 $ 81,451 $ 75,807 $ 173,482 $ 157,258 $ 259,893 $ 239,412 $ 348,839 $ 324,293 $ 299,009
Other revenues   1,933 1,997 1,859   1,895 1,837 1,434 3,856 3,271 5,789 5,166 7,707 7,009 6,065
Net revenues 90,864 88,344 90,430 86,908 86,724 84,049 83,288 77,241 177,338 160,529 265,682 244,578 356,546 331,302 305,074
Clinic operating costs:                              
Salaries and related costs   49,868 48,837 47,804   46,594 44,398 43,052 96,641 87,450 146,509 134,044 198,495 180,514 163,417
Rent, clinic supplies, contract labor and other   17,885 17,546 17,507   17,428 16,681 16,325 35,053 33,006 52,938 50,434 71,868 68,046 61,209
Provision for doubtful accounts   917 956 1,089   1,067 1,062 990 2,045 2,052 2,962 3,119 4,040 4,170 4,112
Closure costs   9 32 13   88 5 32 45 37 54 125 131 211 169
Total clinic operating costs   68,679 67,371 66,413   65,177 62,146 60,399 133,784 122,545 202,463 187,722 274,534 252,941 228,907
Gross margin   19,665 23,059 20,495   18,872 21,142 16,842 43,554 37,984 63,219 56,856 82,012 78,361 76,167
Corporate office costs   7,610 8,026 9,004   6,923 7,593 7,657 17,030 15,250 24,640 22,173 32,479 31,067 30,399
Operating income $ 10,954 12,055 15,033 11,491 $ 12,611 11,949 13,549 9,185 26,524 22,734 38,579 34,683 49,533 47,294 45,768
Interest and other income, net   21 21 20   24 16 8 41 24 62 48 93 81 18
Interest expense                              
Mandatorily redeemable non-controlling interests - change in redemption value   (1,934) (1,931) (2,191)   (501) 48 (244) (4,122) (196) (6,056) (697) (6,169) (2,670) [2] (2,978) [2]
Mandatorily redeemable non-controlling interests - earnings allocable   (929) (1,330) (887)   (778) (1,190) (706) (2,217) (1,896) (3,146) (2,674) (4,057) (3,538) [2] (3,388) [2]
Debt and other   (326) (320) (308)   (255) (245) (265) (628) (510) (954) (765) (1,252) (1,031) (1,088)
Total interest expense   (3,189) (3,581) (3,386)   (1,534) (1,387) (1,215) (6,967) (2,602) (10,156) (4,136) (11,478) (7,239) (7,454)
Income before taxes   8,887 11,473 8,125   10,439 12,178 7,978 19,598 20,156 28,485 30,595 38,148 40,136 38,332
Provision for income taxes   2,753 3,802 2,172   3,465 4,221 2,685 5,974 6,906 8,727 10,371 11,880 13,647 13,018
Net income   6,134 7,671 5,953   6,974 7,957 5,293 13,624 13,250 19,758 20,224 26,268 26,489 25,314
Less: net income attributable to non-controlling interests   (1,330) (1,659) (1,465)   (1,468) (1,623) (1,279) (3,124) (2,902) (4,454) (4,370) (5,717) (5,874) (6,183)
Net income attributable to USPH shareholders   $ 4,804 $ 6,012 $ 4,488   $ 5,506 $ 6,334 $ 4,014 $ 10,500 $ 10,348 $ 15,304 $ 15,854 $ 20,551 $ 20,615 $ 19,131
Basic and diluted earnings per share attributable to USPH shareholders (in dollars per share) $ 0.42 $ 0.38 $ 0.48 $ 0.36 $ 0.38 $ 0.44 $ 0.51 $ 0.33 $ 0.84 $ 0.84 $ 1.22 $ 1.28 $ 1.64 $ 1.66 $ 1.57
Shares used in computation - basic (in shares)   12,520 12,511 12,448   12,421 12,409 12,313 12,480 12,362 12,494 12,382 12,500 12,392 12,217
Shares used in computation - diluted (in shares)   12,520 12,511 12,448   12,421 12,409 12,313 12,480 12,362 12,494 12,382 12,500 12,392 12,221
Dividends declared per common share (in dollars per share)   $ 0.17 $ 0.17 $ 0.17   $ 0.15 $ 0.15 $ 0.15 $ 0.34 $ 0.30 $ 0.51 $ 0.45 $ 0.68 $ 0.60 $ 0.48
[1] as restated
[2] Mandatorily redeemable non-controlling interests