Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	InTouch Pharmacy LLC Common Stock	InTouch Pharmacy LLC	Common Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss	Total
Balance at Dec. 31, 2017			$ 619,235	$ 38,450	$ 91,816		$ 749,501
Balance (in shares) at Dec. 31, 2017			73,871,424
Changes in Shareholders' Equity
Net loss					(450)		(450)
Stock issued upon stock option exercises			$ 2,461	(552)			1,909
Stock issued upon stock option exercises (in shares)			200,677
Share-based compensation				3,161			3,161
Stock issued upon vesting of restricted stock units			$ 157	(157)
Stock issued upon vesting of restricted stock units (in shares)			10,705
Balance at Mar. 31, 2018			$ 621,853	40,902	91,240		753,995
Balance (in shares) at Mar. 31, 2018			74,082,806
Balance at Dec. 31, 2017			$ 619,235	38,450	91,816		749,501
Balance (in shares) at Dec. 31, 2017			73,871,424
Changes in Shareholders' Equity
Net loss							(4,244)
Other comprehensive (loss) income, net of tax							(44)
Balance at Sep. 30, 2018			$ 629,283	48,172	87,445	$ (44)	764,856
Balance (in shares) at Sep. 30, 2018			74,448,430
Changes in Shareholders' Equity
Cumulative effect adjustment | ASU 2014-09					(126)		(126)
Balance at Mar. 31, 2018			$ 621,853	40,902	91,240		753,995
Balance (in shares) at Mar. 31, 2018			74,082,806
Changes in Shareholders' Equity
Net loss					(3,964)		(3,964)
Stock issued upon stock option exercises			$ 1,831	(389)			1,442
Stock issued upon stock option exercises (in shares)			129,722
Share-based compensation				6,961			6,961
Stock issued upon vesting of restricted stock units			$ 1,109	(1,109)
Stock issued upon vesting of restricted stock units (in shares)			47,683
Restricted stock award activity			$ 561	(561)
Restricted stock award activity (in shares)			21,924
Other comprehensive (loss) income, net of tax						(962)	(962)
Balance at Jun. 30, 2018			$ 625,354	45,804	87,276	(962)	757,472
Balance (in shares) at Jun. 30, 2018			74,282,135
Changes in Shareholders' Equity
Net loss					169		169
Stock issued upon stock option exercises			$ 896	(248)			648
Stock issued upon stock option exercises (in shares)			41,420
Share-based compensation				5,649			5,649
Stock issued upon vesting of restricted stock units			$ 3,033	(3,033)
Stock issued upon vesting of restricted stock units (in shares)			124,875
Other comprehensive (loss) income, net of tax						918	918
Balance at Sep. 30, 2018			$ 629,283	48,172	87,445	(44)	764,856
Balance (in shares) at Sep. 30, 2018			74,448,430
Balance at Dec. 31, 2018			$ 629,411	50,544	(210,579)	(4,292)	$ 465,084
Balance (in shares) at Dec. 31, 2018			74,474,677				74,474,677
Changes in Shareholders' Equity
Net loss					(14,301)		$ (14,301)
Share-based compensation				3,572			3,572
Stock issued upon vesting of restricted stock units			$ 4,766	(4,766)
Stock issued upon vesting of restricted stock units (in shares)			244,948
Restricted stock award activity			$ 37	(37)
Restricted stock award activity (in shares)			(5,929)
Other comprehensive (loss) income, net of tax						(2,127)	(2,127)
Balance at Mar. 31, 2019			$ 634,214	49,313	(219,228)	(6,419)	457,880
Balance (in shares) at Mar. 31, 2019			74,713,696
Balance at Dec. 31, 2018			$ 629,411	50,544	(210,579)	(4,292)	$ 465,084
Balance (in shares) at Dec. 31, 2018			74,474,677				74,474,677
Changes in Shareholders' Equity
Net loss							$ (351,043)
Other comprehensive (loss) income, net of tax							(5,792)
Balance at Sep. 30, 2019			$ 641,557	55,529	(555,970)	(10,084)	$ 131,032
Balance (in shares) at Sep. 30, 2019			75,973,963				75,973,963
Changes in Shareholders' Equity
Cumulative effect adjustment | ASU 2016-02					5,652		$ 5,652
Balance at Mar. 31, 2019			$ 634,214	49,313	(219,228)	(6,419)	457,880
Balance (in shares) at Mar. 31, 2019			74,713,696
Changes in Shareholders' Equity
Net loss					(159,462)		(159,462)
Stock issued upon stock option exercises			$ 148	(30)			118
Stock issued upon stock option exercises (in shares)			27,313
Share-based compensation				4,283			4,283
Stock issued upon vesting of restricted stock units			$ 1,544	(1,544)
Stock issued upon vesting of restricted stock units (in shares)			65,988
Restricted stock award activity			$ 425	(425)
Restricted stock award activity (in shares)			186,969
Other comprehensive (loss) income, net of tax						(3,358)	(3,358)
Balance at Jun. 30, 2019			$ 636,331	51,597	(378,690)	(9,777)	299,461
Balance (in shares) at Jun. 30, 2019			74,993,966
Changes in Shareholders' Equity
Net loss					(177,280)		(177,280)
Stock issued upon stock option exercises			$ 582	(100)			482
Stock issued upon stock option exercises (in shares)			104,653
Share-based compensation				4,777			4,777
Stock issued upon vesting of restricted stock units			$ 745	(745)
Stock issued upon vesting of restricted stock units (in shares)			38,913
Other comprehensive (loss) income, net of tax						(307)	(307)
Balance at Sep. 30, 2019			$ 641,557	$ 55,529	$ (555,970)	$ (10,084)	$ 131,032
Balance (in shares) at Sep. 30, 2019			75,973,963				75,973,963
Changes in Shareholders' Equity
Issuance of stock upon full contingent consideration payout	$ 3,899	$ 3,899
Issuance of stock upon full contingent consideration payout (in shares)	836,431